diff options
| author | Alex Shi <alex.shi@linaro.org> | 2016-09-09 22:50:22 +0800 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2016-09-09 22:50:22 +0800 |
| commit | b71d24fd9283d80a2ca7b26cdd5de296b17de72c (patch) | |
| tree | df2f40632cc6fcb5229e6764b5ef8416786cfa4a /drivers | |
| parent | f2725fa609772c64440e3fbd48209a0646e29035 (diff) | |
| parent | 57dad0b2f6693c01240772222c120516d5cd9d8a (diff) | |
Merge tag 'v4.1.31-rt35' into linux-linaro-lsk-v4.1-rt
Linux 4.1.31-rt35
Conflicts:
skip pagevec_add(pvec, page) in __lru_cache_add in mm/swap.c
Diffstat (limited to 'drivers')
55 files changed, 713 insertions, 448 deletions
diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c index 0beaa52df66b..c31980079507 100644 --- a/drivers/bluetooth/ath3k.c +++ b/drivers/bluetooth/ath3k.c @@ -122,6 +122,8 @@ static const struct usb_device_id ath3k_table[] = { { USB_DEVICE(0x13d3, 0x3432) }, { USB_DEVICE(0x13d3, 0x3472) }, { USB_DEVICE(0x13d3, 0x3474) }, + { USB_DEVICE(0x13d3, 0x3487) }, + { USB_DEVICE(0x13d3, 0x3490) }, /* Atheros AR5BBU12 with sflash firmware */ { USB_DEVICE(0x0489, 0xE02C) }, @@ -188,6 +190,8 @@ static const struct usb_device_id ath3k_blist_tbl[] = { { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, /* Atheros AR5BBU22 with sflash firmware */ { USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 }, diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index ac553f997a1c..81721ad6fcb0 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -224,6 +224,8 @@ static const struct usb_device_id blacklist_table[] = { { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, /* Atheros AR5BBU12 with sflash firmware */ { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, diff --git a/drivers/gpio/gpio-intel-mid.c b/drivers/gpio/gpio-intel-mid.c index aa28c65eb6b4..14945fd9d5e1 100644 --- a/drivers/gpio/gpio-intel-mid.c +++ b/drivers/gpio/gpio-intel-mid.c @@ -17,7 +17,6 @@ * Moorestown platform Langwell chip. * Medfield platform Penwell chip. * Clovertrail platform Cloverview chip. - * Merrifield platform Tangier chip. */ #include <linux/module.h> @@ -64,10 +63,6 @@ enum GPIO_REG { /* intel_mid gpio driver data */ struct intel_mid_gpio_ddata { u16 ngpio; /* number of gpio pins */ - u32 gplr_offset; /* offset of first GPLR register from base */ - u32 flis_base; /* base address of FLIS registers */ - u32 flis_len; /* length of FLIS registers */ - u32 (*get_flis_offset)(int gpio); u32 chip_irq_type; /* chip interrupt type */ }; @@ -257,15 +252,6 @@ static const struct intel_mid_gpio_ddata gpio_cloverview_core = { .chip_irq_type = INTEL_MID_IRQ_TYPE_EDGE, }; -static const struct intel_mid_gpio_ddata gpio_tangier = { - .ngpio = 192, - .gplr_offset = 4, - .flis_base = 0xff0c0000, - .flis_len = 0x8000, - .get_flis_offset = NULL, - .chip_irq_type = INTEL_MID_IRQ_TYPE_EDGE, -}; - static const struct pci_device_id intel_gpio_ids[] = { { /* Lincroft */ @@ -292,11 +278,6 @@ static const struct pci_device_id intel_gpio_ids[] = { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x08f7), .driver_data = (kernel_ulong_t)&gpio_cloverview_core, }, - { - /* Tangier */ - PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x1199), - .driver_data = (kernel_ulong_t)&gpio_tangier, - }, { 0 } }; MODULE_DEVICE_TABLE(pci, intel_gpio_ids); diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c index 16f7c4f2d8c8..6e2720ea7d45 100644 --- a/drivers/gpio/gpio-pca953x.c +++ b/drivers/gpio/gpio-pca953x.c @@ -76,7 +76,7 @@ MODULE_DEVICE_TABLE(i2c, pca953x_id); #define MAX_BANK 5 #define BANK_SZ 8 -#define NBANK(chip) (chip->gpio_chip.ngpio / BANK_SZ) +#define NBANK(chip) DIV_ROUND_UP(chip->gpio_chip.ngpio, BANK_SZ) struct pca953x_chip { unsigned gpio_start; diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 9ac6a47a0aec..d1f1781392bf 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -7129,14 +7129,12 @@ static void ironlake_init_pch_refclk(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; struct intel_encoder *encoder; - int i; u32 val, final; bool has_lvds = false; bool has_cpu_edp = false; bool has_panel = false; bool has_ck505 = false; bool can_ssc = false; - bool using_ssc_source = false; /* We need to take the global config into account */ for_each_intel_encoder(dev, encoder) { @@ -7163,22 +7161,8 @@ static void ironlake_init_pch_refclk(struct drm_device *dev) can_ssc = true; } - /* Check if any DPLLs are using the SSC source */ - for (i = 0; i < dev_priv->num_shared_dpll; i++) { - u32 temp = I915_READ(PCH_DPLL(i)); - - if (!(temp & DPLL_VCO_ENABLE)) - continue; - - if ((temp & PLL_REF_INPUT_MASK) == - PLLB_REF_INPUT_SPREADSPECTRUMIN) { - using_ssc_source = true; - break; - } - } - - DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d using_ssc_source %d\n", - has_panel, has_lvds, has_ck505, using_ssc_source); + DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n", + has_panel, has_lvds, has_ck505); /* Ironlake: try to setup display ref clock before DPLL * enabling. This is only under driver's control after @@ -7215,9 +7199,9 @@ static void ironlake_init_pch_refclk(struct drm_device *dev) final |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; } else final |= DREF_CPU_SOURCE_OUTPUT_DISABLE; - } else if (using_ssc_source) { - final |= DREF_SSC_SOURCE_ENABLE; - final |= DREF_SSC1_ENABLE; + } else { + final |= DREF_SSC_SOURCE_DISABLE; + final |= DREF_CPU_SOURCE_OUTPUT_DISABLE; } if (final == val) @@ -7263,7 +7247,7 @@ static void ironlake_init_pch_refclk(struct drm_device *dev) POSTING_READ(PCH_DREF_CONTROL); udelay(200); } else { - DRM_DEBUG_KMS("Disabling CPU source output\n"); + DRM_DEBUG_KMS("Disabling SSC entirely\n"); val &= ~DREF_CPU_SOURCE_OUTPUT_MASK; @@ -7274,20 +7258,16 @@ static void ironlake_init_pch_refclk(struct drm_device *dev) POSTING_READ(PCH_DREF_CONTROL); udelay(200); - if (!using_ssc_source) { - DRM_DEBUG_KMS("Disabling SSC source\n"); - - /* Turn off the SSC source */ - val &= ~DREF_SSC_SOURCE_MASK; - val |= DREF_SSC_SOURCE_DISABLE; + /* Turn off the SSC source */ + val &= ~DREF_SSC_SOURCE_MASK; + val |= DREF_SSC_SOURCE_DISABLE; - /* Turn off SSC1 */ - val &= ~DREF_SSC1_ENABLE; + /* Turn off SSC1 */ + val &= ~DREF_SSC1_ENABLE; - I915_WRITE(PCH_DREF_CONTROL, val); - POSTING_READ(PCH_DREF_CONTROL); - udelay(200); - } + I915_WRITE(PCH_DREF_CONTROL, val); + POSTING_READ(PCH_DREF_CONTROL); + udelay(200); } BUG_ON(val != final); diff --git a/drivers/gpu/drm/nouveau/nv04_fbcon.c b/drivers/gpu/drm/nouveau/nv04_fbcon.c index 7a92d15d474e..1ff5ca37dd62 100644 --- a/drivers/gpu/drm/nouveau/nv04_fbcon.c +++ b/drivers/gpu/drm/nouveau/nv04_fbcon.c @@ -107,11 +107,11 @@ nv04_fbcon_imageblit(struct fb_info *info, const struct fb_image *image) ((image->dx + image->width) & 0xffff)); OUT_RING(chan, bg); OUT_RING(chan, fg); - OUT_RING(chan, (image->height << 16) | image->width); + OUT_RING(chan, (image->height << 16) | ALIGN(image->width, 8)); OUT_RING(chan, (image->height << 16) | image->width); OUT_RING(chan, (image->dy << 16) | (image->dx & 0xffff)); - dsize = ALIGN(image->width * image->height, 32) >> 5; + dsize = ALIGN(ALIGN(image->width, 8) * image->height, 32) >> 5; while (dsize) { int iter_len = dsize > 128 ? 128 : dsize; diff --git a/drivers/gpu/drm/nouveau/nv50_fbcon.c b/drivers/gpu/drm/nouveau/nv50_fbcon.c index cb2a71ada99e..8462f72e8819 100644 --- a/drivers/gpu/drm/nouveau/nv50_fbcon.c +++ b/drivers/gpu/drm/nouveau/nv50_fbcon.c @@ -125,7 +125,7 @@ nv50_fbcon_imageblit(struct fb_info *info, const struct fb_image *image) OUT_RING(chan, 0); OUT_RING(chan, image->dy); - dwords = ALIGN(image->width * image->height, 32) >> 5; + dwords = ALIGN(ALIGN(image->width, 8) * image->height, 32) >> 5; while (dwords) { int push = dwords > 2047 ? 2047 : dwords; diff --git a/drivers/gpu/drm/nouveau/nvc0_fbcon.c b/drivers/gpu/drm/nouveau/nvc0_fbcon.c index 69f760e8c54f..90552420c217 100644 --- a/drivers/gpu/drm/nouveau/nvc0_fbcon.c +++ b/drivers/gpu/drm/nouveau/nvc0_fbcon.c @@ -125,7 +125,7 @@ nvc0_fbcon_imageblit(struct fb_info *info, const struct fb_image *image) OUT_RING (chan, 0); OUT_RING (chan, image->dy); - dwords = ALIGN(image->width * image->height, 32) >> 5; + dwords = ALIGN(ALIGN(image->width, 8) * image->height, 32) >> 5; while (dwords) { int push = dwords > 2047 ? 2047 : dwords; diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv30.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv30.c index dcc84eb54fb6..183d1701ae94 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv30.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv30.c @@ -88,8 +88,8 @@ nv30_gr_context_ctor(struct nvkm_object *parent, struct nvkm_object *engine, nv_wo32(chan, i, 0x00040004); for (i = 0x1f18; i <= 0x3088 ; i += 16) { nv_wo32(chan, i + 0, 0x10700ff9); - nv_wo32(chan, i + 1, 0x0436086c); - nv_wo32(chan, i + 2, 0x000c001b); + nv_wo32(chan, i + 4, 0x0436086c); + nv_wo32(chan, i + 8, 0x000c001b); } for (i = 0x30b8; i < 0x30c8; i += 4) nv_wo32(chan, i, 0x0000ffff); diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv34.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv34.c index 985b7f3306ae..720c97135e85 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv34.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv34.c @@ -86,8 +86,8 @@ nv34_gr_context_ctor(struct nvkm_object *parent, struct nvkm_object *engine, nv_wo32(chan, i, 0x00040004); for (i = 0x15ac; i <= 0x271c ; i += 16) { nv_wo32(chan, i + 0, 0x10700ff9); - nv_wo32(chan, i + 1, 0x0436086c); - nv_wo32(chan, i + 2, 0x000c001b); + nv_wo32(chan, i + 4, 0x0436086c); + nv_wo32(chan, i + 8, 0x000c001b); } for (i = 0x274c; i < 0x275c; i += 4) nv_wo32(chan, i, 0x0000ffff); diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c index 0b04b9282f56..d4ac8c837314 100644 --- a/drivers/gpu/drm/radeon/atombios_encoders.c +++ b/drivers/gpu/drm/radeon/atombios_encoders.c @@ -120,6 +120,7 @@ atombios_set_backlight_level(struct radeon_encoder *radeon_encoder, u8 level) case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA: case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1: case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2: + case ENCODER_OBJECT_ID_INTERNAL_UNIPHY3: if (dig->backlight_level == 0) atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_LCD_BLOFF, 0, 0); else { diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index de9a2ffcf5f7..0c5b3eeff82d 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -1155,7 +1155,7 @@ bool radeon_atom_get_clock_info(struct drm_device *dev) le16_to_cpu(firmware_info->info.usReferenceClock); p1pll->reference_div = 0; - if (crev < 2) + if ((frev < 2) && (crev < 2)) p1pll->pll_out_min = le16_to_cpu(firmware_info->info.usMinPixelClockPLL_Output); else @@ -1164,7 +1164,7 @@ bool radeon_atom_get_clock_info(struct drm_device *dev) p1pll->pll_out_max = le32_to_cpu(firmware_info->info.ulMaxPixelClockPLL_Output); - if (crev >= 4) { + if (((frev < 2) && (crev >= 4)) || (frev >= 2)) { p1pll->lcd_pll_out_min = le16_to_cpu(firmware_info->info_14.usLcdMinPixelClockPLL_Output) * 100; if (p1pll->lcd_pll_out_min == 0) diff --git a/drivers/gpu/drm/radeon/radeon_atpx_handler.c b/drivers/gpu/drm/radeon/radeon_atpx_handler.c index 8bc7d0bbd3c8..868247c22de4 100644 --- a/drivers/gpu/drm/radeon/radeon_atpx_handler.c +++ b/drivers/gpu/drm/radeon/radeon_atpx_handler.c @@ -10,6 +10,7 @@ #include <linux/slab.h> #include <linux/acpi.h> #include <linux/pci.h> +#include <linux/delay.h> #include "radeon_acpi.h" @@ -255,6 +256,10 @@ static int radeon_atpx_set_discrete_state(struct radeon_atpx *atpx, u8 state) if (!info) return -EIO; kfree(info); + + /* 200ms delay is required after off */ + if (state == 0) + msleep(200); } return 0; } diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index f5c96fb7e8d0..9f699e87320a 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -2039,7 +2039,6 @@ radeon_add_atom_connector(struct drm_device *dev, RADEON_OUTPUT_CSC_BYPASS); /* no HPD on analog connectors */ radeon_connector->hpd.hpd = RADEON_HPD_NONE; - connector->polled = DRM_CONNECTOR_POLL_CONNECT; connector->interlace_allowed = true; connector->doublescan_allowed = true; break; @@ -2289,8 +2288,10 @@ radeon_add_atom_connector(struct drm_device *dev, } if (radeon_connector->hpd.hpd == RADEON_HPD_NONE) { - if (i2c_bus->valid) - connector->polled = DRM_CONNECTOR_POLL_CONNECT; + if (i2c_bus->valid) { + connector->polled = DRM_CONNECTOR_POLL_CONNECT | + DRM_CONNECTOR_POLL_DISCONNECT; + } } else connector->polled = DRM_CONNECTOR_POLL_HPD; @@ -2366,7 +2367,6 @@ radeon_add_legacy_connector(struct drm_device *dev, 1); /* no HPD on analog connectors */ radeon_connector->hpd.hpd = RADEON_HPD_NONE; - connector->polled = DRM_CONNECTOR_POLL_CONNECT; connector->interlace_allowed = true; connector->doublescan_allowed = true; break; @@ -2451,10 +2451,13 @@ radeon_add_legacy_connector(struct drm_device *dev, } if (radeon_connector->hpd.hpd == RADEON_HPD_NONE) { - if (i2c_bus->valid) - connector->polled = DRM_CONNECTOR_POLL_CONNECT; + if (i2c_bus->valid) { + connector->polled = DRM_CONNECTOR_POLL_CONNECT | + DRM_CONNECTOR_POLL_DISCONNECT; + } } else connector->polled = DRM_CONNECTOR_POLL_HPD; + connector->display_info.subpixel_order = subpixel_order; drm_connector_register(connector); } diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c index e094c572b86e..1a2032c2c1fb 100644 --- a/drivers/hid/uhid.c +++ b/drivers/hid/uhid.c @@ -51,10 +51,26 @@ struct uhid_device { u32 report_id; u32 report_type; struct uhid_event report_buf; + struct work_struct worker; }; static struct miscdevice uhid_misc; +static void uhid_device_add_worker(struct work_struct *work) +{ + struct uhid_device *uhid = container_of(work, struct uhid_device, worker); + int ret; + + ret = hid_add_device(uhid->hid); + if (ret) { + hid_err(uhid->hid, "Cannot register HID device: error %d\n", ret); + + hid_destroy_device(uhid->hid); + uhid->hid = NULL; + uhid->running = false; + } +} + static void uhid_queue(struct uhid_device *uhid, struct uhid_event *ev) { __u8 newhead; @@ -498,18 +514,14 @@ static int uhid_dev_create2(struct uhid_device *uhid, uhid->hid = hid; uhid->running = true; - ret = hid_add_device(hid); - if (ret) { - hid_err(hid, "Cannot register HID device\n"); - goto err_hid; - } + /* Adding of a HID device is done through a worker, to allow HID drivers + * which use feature requests during .probe to work, without they would + * be blocked on devlock, which is held by uhid_char_write. + */ + schedule_work(&uhid->worker); return 0; -err_hid: - hid_destroy_device(hid); - uhid->hid = NULL; - uhid->running = false; err_free: kfree(uhid->rd_data); uhid->rd_data = NULL; @@ -550,6 +562,8 @@ static int uhid_dev_destroy(struct uhid_device *uhid) uhid->running = false; wake_up_interruptible(&uhid->report_wait); + cancel_work_sync(&uhid->worker); + hid_destroy_device(uhid->hid); kfree(uhid->rd_data); @@ -612,6 +626,7 @@ static int uhid_char_open(struct inode *inode, struct file *file) init_waitqueue_head(&uhid->waitq); init_waitqueue_head(&uhid->report_wait); uhid->running = false; + INIT_WORK(&uhid->worker, uhid_device_add_worker); file->private_data = uhid; nonseekable_open(inode, file); diff --git a/drivers/iio/accel/kxsd9.c b/drivers/iio/accel/kxsd9.c index 98ba761cbb9c..d8738d4f8df3 100644 --- a/drivers/iio/accel/kxsd9.c +++ b/drivers/iio/accel/kxsd9.c @@ -81,7 +81,7 @@ static int kxsd9_write_scale(struct iio_dev *indio_dev, int micro) mutex_lock(&st->buf_lock); ret = spi_w8r8(st->us, KXSD9_READ(KXSD9_REG_CTRL_C)); - if (ret) + if (ret < 0) goto error_ret; st->tx[0] = KXSD9_WRITE(KXSD9_REG_CTRL_C); st->tx[1] = (ret & ~KXSD9_FS_MASK) | i; @@ -163,7 +163,7 @@ static int kxsd9_read_raw(struct iio_dev *indio_dev, break; case IIO_CHAN_INFO_SCALE: ret = spi_w8r8(st->us, KXSD9_READ(KXSD9_REG_CTRL_C)); - if (ret) + if (ret < 0) goto error_ret; *val2 = kxsd9_micro_scales[ret & KXSD9_FS_MASK]; ret = IIO_VAL_INT_PLUS_MICRO; diff --git a/drivers/iio/adc/ad7266.c b/drivers/iio/adc/ad7266.c index 70f78c3062a7..8e2b9e70511d 100644 --- a/drivers/iio/adc/ad7266.c +++ b/drivers/iio/adc/ad7266.c @@ -396,8 +396,8 @@ static int ad7266_probe(struct spi_device *spi) st = iio_priv(indio_dev); - st->reg = devm_regulator_get(&spi->dev, "vref"); - if (!IS_ERR_OR_NULL(st->reg)) { + st->reg = devm_regulator_get_optional(&spi->dev, "vref"); + if (!IS_ERR(st->reg)) { ret = regulator_enable(st->reg); if (ret) return ret; @@ -408,6 +408,9 @@ static int ad7266_probe(struct spi_device *spi) st->vref_mv = ret / 1000; } else { + /* Any other error indicates that the regulator does exist */ + if (PTR_ERR(st->reg) != -ENODEV) + return PTR_ERR(st->reg); /* Use internal reference */ st->vref_mv = 2500; } diff --git a/drivers/iio/industrialio-trigger.c b/drivers/iio/industrialio-trigger.c index d31098e0c43f..ae824d40195a 100644 --- a/drivers/iio/industrialio-trigger.c +++ b/drivers/iio/industrialio-trigger.c @@ -203,22 +203,35 @@ static int iio_trigger_attach_poll_func(struct iio_trigger *trig, /* Prevent the module from being removed whilst attached to a trigger */ __module_get(pf->indio_dev->info->driver_module); + + /* Get irq number */ pf->irq = iio_trigger_get_irq(trig); + if (pf->irq < 0) + goto out_put_module; + + /* Request irq */ ret = request_threaded_irq(pf->irq, pf->h, pf->thread, pf->type, pf->name, pf); - if (ret < 0) { - module_put(pf->indio_dev->info->driver_module); - return ret; - } + if (ret < 0) + goto out_put_irq; + /* Enable trigger in driver */ if (trig->ops && trig->ops->set_trigger_state && notinuse) { ret = trig->ops->set_trigger_state(trig, true); if (ret < 0) - module_put(pf->indio_dev->info->driver_module); + goto out_free_irq; } return ret; + +out_free_irq: + free_irq(pf->irq, pf); +out_put_irq: + iio_trigger_put_irq(trig, pf->irq); +out_put_module: + module_put(pf->indio_dev->info->driver_module); + return ret; } static int iio_trigger_detach_poll_func(struct iio_trigger *trig, diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c index e881fa6291e9..1f7f844bc0b8 100644 --- a/drivers/iio/pressure/st_pressure_core.c +++ b/drivers/iio/pressure/st_pressure_core.c @@ -28,15 +28,21 @@ #include <linux/iio/common/st_sensors.h> #include "st_pressure.h" +#define MCELSIUS_PER_CELSIUS 1000 + +/* Default pressure sensitivity */ #define ST_PRESS_LSB_PER_MBAR 4096UL #define ST_PRESS_KPASCAL_NANO_SCALE (100000000UL / \ ST_PRESS_LSB_PER_MBAR) + +/* Default temperature sensitivity */ #define ST_PRESS_LSB_PER_CELSIUS 480UL -#define ST_PRESS_CELSIUS_NANO_SCALE (1000000000UL / \ - ST_PRESS_LSB_PER_CELSIUS) +#define ST_PRESS_MILLI_CELSIUS_OFFSET 42500UL + #define ST_PRESS_NUMBER_DATA_CHANNELS 1 /* FULLSCALE */ +#define ST_PRESS_FS_AVL_1100MB 1100 #define ST_PRESS_FS_AVL_1260MB 1260 #define ST_PRESS_1_OUT_XL_ADDR 0x28 @@ -54,18 +60,20 @@ #define ST_PRESS_LPS331AP_PW_MASK 0x80 #define ST_PRESS_LPS331AP_FS_ADDR 0x23 #define ST_PRESS_LPS331AP_FS_MASK 0x30 -#define ST_PRESS_LPS331AP_FS_AVL_1260_VAL 0x00 -#define ST_PRESS_LPS331AP_FS_AVL_1260_GAIN ST_PRESS_KPASCAL_NANO_SCALE -#define ST_PRESS_LPS331AP_FS_AVL_TEMP_GAIN ST_PRESS_CELSIUS_NANO_SCALE #define ST_PRESS_LPS331AP_BDU_ADDR 0x20 #define ST_PRESS_LPS331AP_BDU_MASK 0x04 #define ST_PRESS_LPS331AP_DRDY_IRQ_ADDR 0x22 #define ST_PRESS_LPS331AP_DRDY_IRQ_INT1_MASK 0x04 #define ST_PRESS_LPS331AP_DRDY_IRQ_INT2_MASK 0x20 #define ST_PRESS_LPS331AP_MULTIREAD_BIT true -#define ST_PRESS_LPS331AP_TEMP_OFFSET 42500 /* CUSTOM VALUES FOR LPS001WP SENSOR */ + +/* LPS001WP pressure resolution */ +#define ST_PRESS_LPS001WP_LSB_PER_MBAR 16UL +/* LPS001WP temperature resolution */ +#define ST_PRESS_LPS001WP_LSB_PER_CELSIUS 64UL + #define ST_PRESS_LPS001WP_WAI_EXP 0xba #define ST_PRESS_LPS001WP_ODR_ADDR 0x20 #define ST_PRESS_LPS001WP_ODR_MASK 0x30 @@ -74,6 +82,8 @@ #define ST_PRESS_LPS001WP_ODR_AVL_13HZ_VAL 0x03 #define ST_PRESS_LPS001WP_PW_ADDR 0x20 #define ST_PRESS_LPS001WP_PW_MASK 0x40 +#define ST_PRESS_LPS001WP_FS_AVL_PRESS_GAIN \ + (100000000UL / ST_PRESS_LPS001WP_LSB_PER_MBAR) #define ST_PRESS_LPS001WP_BDU_ADDR 0x20 #define ST_PRESS_LPS001WP_BDU_MASK 0x04 #define ST_PRESS_LPS001WP_MULTIREAD_BIT true @@ -90,18 +100,12 @@ #define ST_PRESS_LPS25H_ODR_AVL_25HZ_VAL 0x04 #define ST_PRESS_LPS25H_PW_ADDR 0x20 #define ST_PRESS_LPS25H_PW_MASK 0x80 -#define ST_PRESS_LPS25H_FS_ADDR 0x00 -#define ST_PRESS_LPS25H_FS_MASK 0x00 -#define ST_PRESS_LPS25H_FS_AVL_1260_VAL 0x00 -#define ST_PRESS_LPS25H_FS_AVL_1260_GAIN ST_PRESS_KPASCAL_NANO_SCALE -#define ST_PRESS_LPS25H_FS_AVL_TEMP_GAIN ST_PRESS_CELSIUS_NANO_SCALE #define ST_PRESS_LPS25H_BDU_ADDR 0x20 #define ST_PRESS_LPS25H_BDU_MASK 0x04 #define ST_PRESS_LPS25H_DRDY_IRQ_ADDR 0x23 #define ST_PRESS_LPS25H_DRDY_IRQ_INT1_MASK 0x01 #define ST_PRESS_LPS25H_DRDY_IRQ_INT2_MASK 0x10 #define ST_PRESS_LPS25H_MULTIREAD_BIT true -#define ST_PRESS_LPS25H_TEMP_OFFSET 42500 #define ST_PRESS_LPS25H_OUT_XL_ADDR 0x28 #define ST_TEMP_LPS25H_OUT_L_ADDR 0x2b @@ -153,7 +157,9 @@ static const struct iio_chan_spec st_press_lps001wp_channels[] = { .storagebits = 16, .endianness = IIO_LE, }, - .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), + .info_mask_separate = + BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_SCALE), .modified = 0, }, { @@ -169,7 +175,7 @@ static const struct iio_chan_spec st_press_lps001wp_channels[] = { }, .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | - BIT(IIO_CHAN_INFO_OFFSET), + BIT(IIO_CHAN_INFO_SCALE), .modified = 0, }, IIO_CHAN_SOFT_TIMESTAMP(1) @@ -203,11 +209,14 @@ static const struct st_sensor_settings st_press_sensors_settings[] = { .addr = ST_PRESS_LPS331AP_FS_ADDR, .mask = ST_PRESS_LPS331AP_FS_MASK, .fs_avl = { + /* + * Pressure and temperature sensitivity values + * as defined in table 3 of LPS331AP datasheet. + */ [0] = { .num = ST_PRESS_FS_AVL_1260MB, - .value = ST_PRESS_LPS331AP_FS_AVL_1260_VAL, - .gain = ST_PRESS_LPS331AP_FS_AVL_1260_GAIN, - .gain2 = ST_PRESS_LPS331AP_FS_AVL_TEMP_GAIN, + .gain = ST_PRESS_KPASCAL_NANO_SCALE, + .gain2 = ST_PRESS_LSB_PER_CELSIUS, }, }, }, @@ -246,7 +255,17 @@ static const struct st_sensor_settings st_press_sensors_settings[] = { .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE, }, .fs = { - .addr = 0, + .fs_avl = { + /* + * Pressure and temperature resolution values + * as defined in table 3 of LPS001WP datasheet. + */ + [0] = { + .num = ST_PRESS_FS_AVL_1100MB, + .gain = ST_PRESS_LPS001WP_FS_AVL_PRESS_GAIN, + .gain2 = ST_PRESS_LPS001WP_LSB_PER_CELSIUS, + }, + }, }, .bdu = { .addr = ST_PRESS_LPS001WP_BDU_ADDR, @@ -282,14 +301,15 @@ static const struct st_sensor_settings st_press_sensors_settings[] = { .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE, }, .fs = { - .addr = ST_PRESS_LPS25H_FS_ADDR, - .mask = ST_PRESS_LPS25H_FS_MASK, .fs_avl = { + /* + * Pressure and temperature sensitivity values + * as defined in table 3 of LPS25H datasheet. + */ [0] = { .num = ST_PRESS_FS_AVL_1260MB, - .value = ST_PRESS_LPS25H_FS_AVL_1260_VAL, - .gain = ST_PRESS_LPS25H_FS_AVL_1260_GAIN, - .gain2 = ST_PRESS_LPS25H_FS_AVL_TEMP_GAIN, + .gain = ST_PRESS_KPASCAL_NANO_SCALE, + .gain2 = ST_PRESS_LSB_PER_CELSIUS, }, }, }, @@ -343,26 +363,26 @@ static int st_press_read_raw(struct iio_dev *indio_dev, return IIO_VAL_INT; case IIO_CHAN_INFO_SCALE: - *val = 0; - switch (ch->type) { case IIO_PRESSURE: + *val = 0; *val2 = press_data->current_fullscale->gain; - break; + return IIO_VAL_INT_PLUS_NANO; case IIO_TEMP: + *val = MCELSIUS_PER_CELSIUS; *val2 = press_data->current_fullscale->gain2; - break; + return IIO_VAL_FRACTIONAL; default: err = -EINVAL; goto read_error; } - return IIO_VAL_INT_PLUS_NANO; case IIO_CHAN_INFO_OFFSET: switch (ch->type) { case IIO_TEMP: - *val = 425; - *val2 = 10; + *val = ST_PRESS_MILLI_CELSIUS_OFFSET * + press_data->current_fullscale->gain2; + *val2 = MCELSIUS_PER_CELSIUS; break; default: err = -EINVAL; diff --git a/drivers/iio/proximity/as3935.c b/drivers/iio/proximity/as3935.c index bc0d68efd455..c96ddaf00fa6 100644 --- a/drivers/iio/proximity/as3935.c +++ b/drivers/iio/proximity/as3935.c @@ -64,6 +64,7 @@ struct as3935_state { struct delayed_work work; u32 tune_cap; + u8 buffer[16]; /* 8-bit data + 56-bit padding + 64-bit timestamp */ u8 buf[2] ____cacheline_aligned; }; @@ -72,7 +73,8 @@ static const struct iio_chan_spec as3935_channels[] = { .type = IIO_PROXIMITY, .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | - BIT(IIO_CHAN_INFO_PROCESSED), + BIT(IIO_CHAN_INFO_PROCESSED) | + BIT(IIO_CHAN_INFO_SCALE), .scan_index = 0, .scan_type = { .sign = 'u', @@ -181,7 +183,12 @@ static int as3935_read_raw(struct iio_dev *indio_dev, /* storm out of range */ if (*val == AS3935_DATA_MASK) return -EINVAL; - *val *= 1000; + + if (m == IIO_CHAN_INFO_PROCESSED) + *val *= 1000; + break; + case IIO_CHAN_INFO_SCALE: + *val = 1000; break; default: return -EINVAL; @@ -206,10 +213,10 @@ static irqreturn_t as3935_trigger_handler(int irq, void *private) ret = as3935_read(st, AS3935_DATA, &val); if (ret) goto err_read; - val &= AS3935_DATA_MASK; - val *= 1000; - iio_push_to_buffers_with_timestamp(indio_dev, &val, pf->timestamp); + st->buffer[0] = val & AS3935_DATA_MASK; + iio_push_to_buffers_with_timestamp(indio_dev, &st->buffer, + pf->timestamp); err_read: iio_trigger_notify_done(indio_dev->trig); diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c index cb5ece77fd7d..e7d7230a7e31 100644 --- a/drivers/input/serio/i8042.c +++ b/drivers/input/serio/i8042.c @@ -1249,6 +1249,7 @@ static int __init i8042_create_kbd_port(void) serio->start = i8042_start; serio->stop = i8042_stop; serio->close = i8042_port_close; + serio->ps2_cmd_mutex = &i8042_mutex; serio->port_data = port; serio->dev.parent = &i8042_platform_device->dev; strlcpy(serio->name, "i8042 KBD port", sizeof(serio->name)); @@ -1345,21 +1346,6 @@ static void i8042_unregister_ports(void) } } -/* - * Checks whether port belongs to i8042 controller. - */ -bool i8042_check_port_owner(const struct serio *port) -{ - int i; - - for (i = 0; i < I8042_NUM_PORTS; i++) - if (i8042_ports[i].serio == port) - return true; - - return false; -} -EXPORT_SYMBOL(i8042_check_port_owner); - static void i8042_free_irqs(void) { if (i8042_aux_irq_registered) diff --git a/drivers/input/serio/libps2.c b/drivers/input/serio/libps2.c index 75516996db20..ded0c6f65c9f 100644 --- a/drivers/input/serio/libps2.c +++ b/drivers/input/serio/libps2.c @@ -56,19 +56,17 @@ EXPORT_SYMBOL(ps2_sendbyte); void ps2_begin_command(struct ps2dev *ps2dev) { - mutex_lock(&ps2dev->cmd_mutex); + struct mutex *m = ps2dev->serio->ps2_cmd_mutex ?: &ps2dev->cmd_mutex; - if (i8042_check_port_owner(ps2dev->serio)) - i8042_lock_chip(); + mutex_lock(m); } EXPORT_SYMBOL(ps2_begin_command); void ps2_end_command(struct ps2dev *ps2dev) { - if (i8042_check_port_owner(ps2dev->serio)) - i8042_unlock_chip(); + struct mutex *m = ps2dev->serio->ps2_cmd_mutex ?: &ps2dev->cmd_mutex; - mutex_unlock(&ps2dev->cmd_mutex); + mutex_unlock(m); } EXPORT_SYMBOL(ps2_end_command); diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c index b257e46876d3..0f5e1820c92d 100644 --- a/drivers/md/dm-flakey.c +++ b/drivers/md/dm-flakey.c @@ -287,10 +287,16 @@ static int flakey_map(struct dm_target *ti, struct bio *bio) pb->bio_submitted = true; /* - * Map reads as normal. + * Map reads as normal only if corrupt_bio_byte set. */ - if (bio_data_dir(bio) == READ) - goto map_bio; + if (bio_data_dir(bio) == READ) { + /* If flags were specified, only corrupt those that match. */ + if (fc->corrupt_bio_byte && (fc->corrupt_bio_rw == READ) && + all_corrupt_bio_flags_match(bio, fc)) + goto map_bio; + else + return -EIO; + } /* * Drop writes? @@ -328,12 +334,13 @@ static int flakey_end_io(struct dm_target *ti, struct bio *bio, int error) /* * Corrupt successful READs while in down state. - * If flags were specified, only corrupt those that match. */ - if (fc->corrupt_bio_byte && !error && pb->bio_submitted && - (bio_data_dir(bio) == READ) && (fc->corrupt_bio_rw == READ) && - all_corrupt_bio_flags_match(bio, fc)) - corrupt_bio_data(bio, fc); + if (!error && pb->bio_submitted && (bio_data_dir(bio) == READ)) { + if (fc->corrupt_bio_byte) + corrupt_bio_data(bio, fc); + else + return -EIO; + } return error; } diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 4d86e3185375..b891788b3895 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1200,8 +1200,14 @@ static void stop_queue(struct request_queue *q) { if (!q->mq_ops) old_stop_queue(q); - else + else { + spin_lock_irq(q->queue_lock); + queue_flag_set(QUEUE_FLAG_STOPPED, q); + spin_unlock_irq(q->queue_lock); + + blk_mq_cancel_requeue_work(q); blk_mq_stop_hw_queues(q); + } } static void old_start_queue(struct request_queue *q) @@ -1218,8 +1224,10 @@ static void start_queue(struct request_queue *q) { if (!q->mq_ops) old_start_queue(q); - else + else { + queue_flag_clear_unlocked(QUEUE_FLAG_STOPPED, q); blk_mq_start_stopped_hw_queues(q, true); + } } static void dm_done(struct request *clone, int error, bool mapped) @@ -2139,7 +2147,7 @@ static void dm_request_fn(struct request_queue *q) goto out; delay_and_out: - blk_delay_queue(q, HZ / 100); + blk_delay_queue(q, 10); out: dm_put_live_table(md, srcu_idx); } @@ -2731,6 +2739,17 @@ static int dm_mq_queue_rq(struct blk_mq_hw_ctx *hctx, } dm_put_live_table(md, srcu_idx); + /* + * On suspend dm_stop_queue() handles stopping the blk-mq + * request_queue BUT: even though the hw_queues are marked + * BLK_MQ_S_STOPPED at that point there is still a race that + * is allowing block/blk-mq.c to call ->queue_rq against a + * hctx that it really shouldn't. The following check guards + * against this rarity (albeit _not_ race-free). + */ + if (unlikely(test_bit(BLK_MQ_S_STOPPED, &hctx->state))) + return BLK_MQ_RQ_QUEUE_BUSY; + if (ti->type->busy && ti->type->busy(ti)) return BLK_MQ_RQ_QUEUE_BUSY; @@ -3130,7 +3149,8 @@ static void unlock_fs(struct mapped_device *md) * Caller must hold md->suspend_lock */ static int __dm_suspend(struct mapped_device *md, struct dm_table *map, - unsigned suspend_flags, int interruptible) + unsigned suspend_flags, int interruptible, + int dmf_suspended_flag) { bool do_lockfs = suspend_flags & DM_SUSPEND_LOCKFS_FLAG; bool noflush = suspend_flags & DM_SUSPEND_NOFLUSH_FLAG; @@ -3197,6 +3217,8 @@ static int __dm_suspend(struct mapped_device *md, struct dm_table *map, * to finish. */ r = dm_wait_for_completion(md, interruptible); + if (!r) + set_bit(dmf_suspended_flag, &md->flags); if (noflush) clear_bit(DMF_NOFLUSH_SUSPENDING, &md->flags); @@ -3258,12 +3280,10 @@ retry: map = rcu_dereference_protected(md->map, lockdep_is_held(&md->suspend_lock)); - r = __dm_suspend(md, map, suspend_flags, TASK_INTERRUPTIBLE); + r = __dm_suspend(md, map, suspend_flags, TASK_INTERRUPTIBLE, DMF_SUSPENDED); if (r) goto out_unlock; - set_bit(DMF_SUSPENDED, &md->flags); - dm_table_postsuspend_targets(map); out_unlock: @@ -3357,9 +3377,8 @@ static void __dm_internal_suspend(struct mapped_device *md, unsigned suspend_fla * would require changing .presuspend to return an error -- avoid this * until there is a need for more elaborate variants of internal suspend. */ - (void) __dm_suspend(md, map, suspend_flags, TASK_UNINTERRUPTIBLE); - - set_bit(DMF_SUSPENDED_INTERNALLY, &md->flags); + (void) __dm_suspend(md, map, suspend_flags, TASK_UNINTERRUPTIBLE, + DMF_SUSPENDED_INTERNALLY); dm_table_postsuspend_targets(map); } diff --git a/drivers/media/dvb-core/dvb_ringbuffer.c b/drivers/media/dvb-core/dvb_ringbuffer.c index 1100e98a7b1d..7df7fb3738a0 100644 --- a/drivers/media/dvb-core/dvb_ringbuffer.c +++ b/drivers/media/dvb-core/dvb_ringbuffer.c @@ -55,7 +55,13 @@ void dvb_ringbuffer_init(struct dvb_ringbuffer *rbuf, void *data, size_t len) int dvb_ringbuffer_empty(struct dvb_ringbuffer *rbuf) { - return (rbuf->pread==rbuf->pwrite); + /* smp_load_acquire() to load write pointer on reader side + * this pairs with smp_store_release() in dvb_ringbuffer_write(), + * dvb_ringbuffer_write_user(), or dvb_ringbuffer_reset() + * + * for memory barriers also see Documentation/circular-buffers.txt + */ + return (rbuf->pread == smp_load_acquire(&rbuf->pwrite)); } @@ -64,7 +70,12 @@ ssize_t dvb_ringbuffer_free(struct dvb_ringbuffer *rbuf) { ssize_t free; - free = rbuf->pread - rbuf->pwrite; + /* ACCESS_ONCE() to load read pointer on writer side + * this pairs with smp_store_release() in dvb_ringbuffer_read(), + * dvb_ringbuffer_read_user(), dvb_ringbuffer_flush(), + * or dvb_ringbuffer_reset() + */ + free = ACCESS_ONCE(rbuf->pread) - rbuf->pwrite; if (free <= 0) free += rbuf->size; return free-1; @@ -76,7 +87,11 @@ ssize_t dvb_ringbuffer_avail(struct dvb_ringbuffer *rbuf) { ssize_t avail; - avail = rbuf->pwrite - rbuf->pread; + /* smp_load_acquire() to load write pointer on reader side + * this pairs with smp_store_release() in dvb_ringbuffer_write(), + * dvb_ringbuffer_write_user(), or dvb_ringbuffer_reset() + */ + avail = smp_load_acquire(&rbuf->pwrite) - rbuf->pread; if (avail < 0) avail += rbuf->size; return avail; @@ -86,14 +101,25 @@ ssize_t dvb_ringbuffer_avail(struct dvb_ringbuffer *rbuf) void dvb_ringbuffer_flush(struct dvb_ringbuffer *rbuf) { - rbuf->pread = rbuf->pwrite; + /* dvb_ringbuffer_flush() counts as read operation + * smp_load_acquire() to load write pointer + * smp_store_release() to update read pointer, this ensures that the + * correct pointer is visible for subsequent dvb_ringbuffer_free() + * calls on other cpu cores + */ + smp_store_release(&rbuf->pread, smp_load_acquire(&rbuf->pwrite)); rbuf->error = 0; } EXPORT_SYMBOL(dvb_ringbuffer_flush); void dvb_ringbuffer_reset(struct dvb_ringbuffer *rbuf) { - rbuf->pread = rbuf->pwrite = 0; + /* dvb_ringbuffer_reset() counts as read and write operation + * smp_store_release() to update read pointer + */ + smp_store_release(&rbuf->pread, 0); + /* smp_store_release() to update write pointer */ + smp_store_release(&rbuf->pwrite, 0); rbuf->error = 0; } @@ -119,12 +145,17 @@ ssize_t dvb_ringbuffer_read_user(struct dvb_ringbuffer *rbuf, u8 __user *buf, si return -EFAULT; buf += split; todo -= split; - rbuf->pread = 0; + /* smp_store_release() for read pointer update to ensure + * that buf is not overwritten until read is complete, + * this pairs with ACCESS_ONCE() in dvb_ringbuffer_free() + */ + smp_store_release(&rbuf->pread, 0); } if (copy_to_user(buf, rbuf->data+rbuf->pread, todo)) return -EFAULT; - rbuf->pread = (rbuf->pread + todo) % rbuf->size; + /* smp_store_release() to update read pointer, see above */ + smp_store_release(&rbuf->pread, (rbuf->pread + todo) % rbuf->size); return len; } @@ -139,11 +170,16 @@ void dvb_ringbuffer_read(struct dvb_ringbuffer *rbuf, u8 *buf, size_t len) memcpy(buf, rbuf->data+rbuf->pread, split); buf += split; todo -= split; - rbuf->pread = 0; + /* smp_store_release() for read pointer update to ensure + * that buf is not overwritten until read is complete, + * this pairs with ACCESS_ONCE() in dvb_ringbuffer_free() + */ + smp_store_release(&rbuf->pread, 0); } memcpy(buf, rbuf->data+rbuf->pread, todo); - rbuf->pread = (rbuf->pread + todo) % rbuf->size; + /* smp_store_release() to update read pointer, see above */ + smp_store_release(&rbuf->pread, (rbuf->pread + todo) % rbuf->size); } @@ -158,10 +194,16 @@ ssize_t dvb_ringbuffer_write(struct dvb_ringbuffer *rbuf, const u8 *buf, size_t memcpy(rbuf->data+rbuf->pwrite, buf, split); buf += split; todo -= split; - rbuf->pwrite = 0; + /* smp_store_release() for write pointer update to ensure that + * written data is visible on other cpu cores before the pointer + * update, this pairs with smp_load_acquire() in + * dvb_ringbuffer_empty() or dvb_ringbuffer_avail() + */ + smp_store_release(&rbuf->pwrite, 0); } memcpy(rbuf->data+rbuf->pwrite, buf, todo); - rbuf->pwrite = (rbuf->pwrite + todo) % rbuf->size; + /* smp_store_release() for write pointer update, see above */ + smp_store_release(&rbuf->pwrite, (rbuf->pwrite + todo) % rbuf->size); return len; } @@ -181,12 +223,18 @@ ssize_t dvb_ringbuffer_write_user(struct dvb_ringbuffer *rbuf, return len - todo; buf += split; todo -= split; - rbuf->pwrite = 0; + /* smp_store_release() for write pointer update to ensure that + * written data is visible on other cpu cores before the pointer + * update, this pairs with smp_load_acquire() in + * dvb_ringbuffer_empty() or dvb_ringbuffer_avail() + */ + smp_store_release(&rbuf->pwrite, 0); } status = copy_from_user(rbuf->data+rbuf->pwrite, buf, todo); if (status) return len - todo; - rbuf->pwrite = (rbuf->pwrite + todo) % rbuf->size; + /* smp_store_release() for write pointer update, see above */ + smp_store_release(&rbuf->pwrite, (rbuf->pwrite + todo) % rbuf->size); return len; } diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c index 8333fbc2fe96..835dbb8f5970 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c @@ -1022,6 +1022,11 @@ static int match_child(struct device *dev, void *data) return !strcmp(dev_name(dev), (char *)data); } +static void s5p_mfc_memdev_release(struct device *dev) +{ + dma_release_declared_memory(dev); +} + static void *mfc_get_drv_data(struct platform_device *pdev); static int s5p_mfc_alloc_memdevs(struct s5p_mfc_dev *dev) @@ -1034,6 +1039,9 @@ static int s5p_mfc_alloc_memdevs(struct s5p_mfc_dev *dev) mfc_err("Not enough memory\n"); return -ENOMEM; } + + dev_set_name(dev->mem_dev_l, "%s", "s5p-mfc-l"); + dev->mem_dev_l->release = s5p_mfc_memdev_release; device_initialize(dev->mem_dev_l); of_property_read_u32_array(dev->plat_dev->dev.of_node, "samsung,mfc-l", mem_info, 2); @@ -1051,6 +1059,9 @@ static int s5p_mfc_alloc_memdevs(struct s5p_mfc_dev *dev) mfc_err("Not enough memory\n"); return -ENOMEM; } + + dev_set_name(dev->mem_dev_r, "%s", "s5p-mfc-r"); + dev->mem_dev_r->release = s5p_mfc_memdev_release; device_initialize(dev->mem_dev_r); of_property_read_u32_array(dev->plat_dev->dev.of_node, "samsung,mfc-r", mem_info, 2); diff --git a/drivers/media/rc/ir-rc5-decoder.c b/drivers/media/rc/ir-rc5-decoder.c index 84fa6e9b59a1..67314c034cdb 100644 --- a/drivers/media/rc/ir-rc5-decoder.c +++ b/drivers/media/rc/ir-rc5-decoder.c @@ -29,7 +29,7 @@ #define RC5_BIT_START (1 * RC5_UNIT) #define RC5_BIT_END (1 * RC5_UNIT) #define RC5X_SPACE (4 * RC5_UNIT) -#define RC5_TRAILER (10 * RC5_UNIT) /* In reality, approx 100 */ +#define RC5_TRAILER (6 * RC5_UNIT) /* In reality, approx 100 */ enum rc5_state { STATE_INACTIVE, diff --git a/drivers/media/usb/usbtv/usbtv-audio.c b/drivers/media/usb/usbtv/usbtv-audio.c index 78c12d22dfbb..5dab02432e82 100644 --- a/drivers/media/usb/usbtv/usbtv-audio.c +++ b/drivers/media/usb/usbtv/usbtv-audio.c @@ -278,6 +278,9 @@ static void snd_usbtv_trigger(struct work_struct *work) { struct usbtv *chip = container_of(work, struct usbtv, snd_trigger); + if (!chip->snd) + return; + if (atomic_read(&chip->snd_stream)) usbtv_audio_start(chip); else @@ -378,6 +381,8 @@ err: void usbtv_audio_free(struct usbtv *usbtv) { + cancel_work_sync(&usbtv->snd_trigger); + if (usbtv->snd && usbtv->udev) { snd_card_free(usbtv->snd); usbtv->snd = NULL; diff --git a/drivers/mfd/qcom_rpm.c b/drivers/mfd/qcom_rpm.c index 12e324319573..798761f2252f 100644 --- a/drivers/mfd/qcom_rpm.c +++ b/drivers/mfd/qcom_rpm.c @@ -34,7 +34,13 @@ struct qcom_rpm_resource { struct qcom_rpm_data { u32 version; const struct qcom_rpm_resource *resource_table; - unsigned n_resources; + unsigned int n_resources; + unsigned int req_ctx_off; + unsigned int req_sel_off; + unsigned int ack_ctx_off; + unsigned int ack_sel_off; + unsigned int req_sel_size; + unsigned int ack_sel_size; }; struct qcom_rpm { @@ -61,11 +67,7 @@ struct qcom_rpm { #define RPM_REQUEST_TIMEOUT (5 * HZ) -#define RPM_REQUEST_CONTEXT 3 -#define RPM_REQ_SELECT 11 -#define RPM_ACK_CONTEXT 15 -#define RPM_ACK_SELECTOR 23 -#define RPM_SELECT_SIZE 7 +#define RPM_MAX_SEL_SIZE 7 #define RPM_NOTIFICATION BIT(30) #define RPM_REJECTED BIT(31) @@ -156,6 +158,12 @@ static const struct qcom_rpm_data apq8064_template = { .version = 3, .resource_table = apq8064_rpm_resource_table, .n_resources = ARRAY_SIZE(apq8064_rpm_resource_table), + .req_ctx_off = 3, + .req_sel_off = 11, + .ack_ctx_off = 15, + .ack_sel_off = 23, + .req_sel_size = 4, + .ack_sel_size = 7, }; static const struct qcom_rpm_resource msm8660_rpm_resource_table[] = { @@ -239,6 +247,12 @@ static const struct qcom_rpm_data msm8660_template = { .version = 2, .resource_table = msm8660_rpm_resource_table, .n_resources = ARRAY_SIZE(msm8660_rpm_resource_table), + .req_ctx_off = 3, + .req_sel_off = 11, + .ack_ctx_off = 19, + .ack_sel_off = 27, + .req_sel_size = 7, + .ack_sel_size = 7, }; static const struct qcom_rpm_resource msm8960_rpm_resource_table[] = { @@ -321,6 +335,12 @@ static const struct qcom_rpm_data msm8960_template = { .version = 3, .resource_table = msm8960_rpm_resource_table, .n_resources = ARRAY_SIZE(msm8960_rpm_resource_table), + .req_ctx_off = 3, + .req_sel_off = 11, + .ack_ctx_off = 15, + .ack_sel_off = 23, + .req_sel_size = 4, + .ack_sel_size = 7, }; static const struct qcom_rpm_resource ipq806x_rpm_resource_table[] = { @@ -361,6 +381,12 @@ static const struct qcom_rpm_data ipq806x_template = { .version = 3, .resource_table = ipq806x_rpm_resource_table, .n_resources = ARRAY_SIZE(ipq806x_rpm_resource_table), + .req_ctx_off = 3, + .req_sel_off = 11, + .ack_ctx_off = 15, + .ack_sel_off = 23, + .req_sel_size = 4, + .ack_sel_size = 7, }; static const struct of_device_id qcom_rpm_of_match[] = { @@ -379,7 +405,7 @@ int qcom_rpm_write(struct qcom_rpm *rpm, { const struct qcom_rpm_resource *res; const struct qcom_rpm_data *data = rpm->data; - u32 sel_mask[RPM_SELECT_SIZE] = { 0 }; + u32 sel_mask[RPM_MAX_SEL_SIZE] = { 0 }; int left; int ret = 0; int i; @@ -397,12 +423,12 @@ int qcom_rpm_write(struct qcom_rpm *rpm, writel_relaxed(buf[i], RPM_REQ_REG(rpm, res->target_id + i)); bitmap_set((unsigned long *)sel_mask, res->select_id, 1); - for (i = 0; i < ARRAY_SIZE(sel_mask); i++) { + for (i = 0; i < rpm->data->req_sel_size; i++) { writel_relaxed(sel_mask[i], - RPM_CTRL_REG(rpm, RPM_REQ_SELECT + i)); + RPM_CTRL_REG(rpm, rpm->data->req_sel_off + i)); } - writel_relaxed(BIT(state), RPM_CTRL_REG(rpm, RPM_REQUEST_CONTEXT)); + writel_relaxed(BIT(state), RPM_CTRL_REG(rpm, rpm->data->req_ctx_off)); reinit_completion(&rpm->ack); regmap_write(rpm->ipc_regmap, rpm->ipc_offset, BIT(rpm->ipc_bit)); @@ -425,10 +451,11 @@ static irqreturn_t qcom_rpm_ack_interrupt(int irq, void *dev) u32 ack; int i; - ack = readl_relaxed(RPM_CTRL_REG(rpm, RPM_ACK_CONTEXT)); - for (i = 0; i < RPM_SELECT_SIZE; i++) - writel_relaxed(0, RPM_CTRL_REG(rpm, RPM_ACK_SELECTOR + i)); - writel(0, RPM_CTRL_REG(rpm, RPM_ACK_CONTEXT)); + ack = readl_relaxed(RPM_CTRL_REG(rpm, rpm->data->ack_ctx_off)); + for (i = 0; i < rpm->data->ack_sel_size; i++) + writel_relaxed(0, + RPM_CTRL_REG(rpm, rpm->data->ack_sel_off + i)); + writel(0, RPM_CTRL_REG(rpm, rpm->data->ack_ctx_off)); if (ack & RPM_NOTIFICATION) { dev_warn(rpm->dev, "ignoring notification!\n"); diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index c2e1232cd45c..fa5cd51cba38 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2441,7 +2441,7 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to, int cached = writelen > bytes && page != blockmask; uint8_t *wbuf = buf; int use_bufpoi; - int part_pagewr = (column || writelen < (mtd->writesize - 1)); + int part_pagewr = (column || writelen < mtd->writesize); if (part_pagewr) use_bufpoi = 1; diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c index b7f824d5ee88..9fd4f7838080 100644 --- a/drivers/mtd/ubi/build.c +++ b/drivers/mtd/ubi/build.c @@ -887,7 +887,7 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, for (i = 0; i < UBI_MAX_DEVICES; i++) { ubi = ubi_devices[i]; if (ubi && mtd->index == ubi->mtd->index) { - ubi_err(ubi, "mtd%d is already attached to ubi%d", + pr_err("ubi: mtd%d is already attached to ubi%d", mtd->index, i); return -EEXIST; } @@ -902,7 +902,7 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, * no sense to attach emulated MTD devices, so we prohibit this. */ if (mtd->type == MTD_UBIVOLUME) { - ubi_err(ubi, "refuse attaching mtd%d - it is already emulated on top of UBI", + pr_err("ubi: refuse attaching mtd%d - it is already emulated on top of UBI", mtd->index); return -EINVAL; } @@ -913,7 +913,7 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, if (!ubi_devices[ubi_num]) break; if (ubi_num == UBI_MAX_DEVICES) { - ubi_err(ubi, "only %d UBI devices may be created", + pr_err("ubi: only %d UBI devices may be created", UBI_MAX_DEVICES); return -ENFILE; } @@ -923,7 +923,7 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, /* Make sure ubi_num is not busy */ if (ubi_devices[ubi_num]) { - ubi_err(ubi, "already exists"); + pr_err("ubi: ubi%i already exists", ubi_num); return -EEXIST; } } @@ -1005,6 +1005,9 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, goto out_detach; } + /* Make device "available" before it becomes accessible via sysfs */ + ubi_devices[ubi_num] = ubi; + err = uif_init(ubi, &ref); if (err) goto out_detach; @@ -1049,7 +1052,6 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, wake_up_process(ubi->bgt_thread); spin_unlock(&ubi->wl_lock); - ubi_devices[ubi_num] = ubi; ubi_notify_all(ubi, UBI_VOLUME_ADDED, NULL); return ubi_num; @@ -1060,6 +1062,7 @@ out_uif: ubi_assert(ref); uif_close(ubi); out_detach: + ubi_devices[ubi_num] = NULL; ubi_wl_close(ubi); ubi_free_internal_volumes(ubi); vfree(ubi->vtbl); diff --git a/drivers/mtd/ubi/vmt.c b/drivers/mtd/ubi/vmt.c index ff4d97848d1c..812ecf2d253a 100644 --- a/drivers/mtd/ubi/vmt.c +++ b/drivers/mtd/ubi/vmt.c @@ -536,13 +536,6 @@ int ubi_resize_volume(struct ubi_volume_desc *desc, int reserved_pebs) spin_unlock(&ubi->volumes_lock); } - /* Change volume table record */ - vtbl_rec = ubi->vtbl[vol_id]; - vtbl_rec.reserved_pebs = cpu_to_be32(reserved_pebs); - err = ubi_change_vtbl_record(ubi, vol_id, &vtbl_rec); - if (err) - goto out_acc; - if (pebs < 0) { for (i = 0; i < -pebs; i++) { err = ubi_eba_unmap_leb(ubi, vol, reserved_pebs + i); @@ -560,6 +553,24 @@ int ubi_resize_volume(struct ubi_volume_desc *desc, int reserved_pebs) spin_unlock(&ubi->volumes_lock); } + /* + * When we shrink a volume we have to flush all pending (erase) work. + * Otherwise it can happen that upon next attach UBI finds a LEB with + * lnum > highest_lnum and refuses to attach. + */ + if (pebs < 0) { + err = ubi_wl_flush(ubi, vol_id, UBI_ALL); + if (err) + goto out_acc; + } + + /* Change volume table record */ + vtbl_rec = ubi->vtbl[vol_id]; + vtbl_rec.reserved_pebs = cpu_to_be32(reserved_pebs); + err = ubi_change_vtbl_record(ubi, vol_id, &vtbl_rec); + if (err) + goto out_acc; + vol->reserved_pebs = reserved_pebs; if (vol->vol_type == UBI_DYNAMIC_VOLUME) { vol->used_ebs = reserved_pebs; diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index 5db25e46a962..5dbc1744eba5 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -858,6 +858,13 @@ advance: if (cdc_ncm_init(dev)) goto error2; + /* Some firmwares need a pause here or they will silently fail + * to set up the interface properly. This value was decided + * empirically on a Sierra Wireless MC7455 running 02.08.02.00 + * firmware. + */ + usleep_range(10000, 20000); + /* configure data interface */ temp = usb_set_interface(dev->udev, iface_no, data_altsetting); if (temp) { diff --git a/drivers/net/wireless/iwlwifi/pcie/drv.c b/drivers/net/wireless/iwlwifi/pcie/drv.c index 9faf69875fab..2babc39f66a7 100644 --- a/drivers/net/wireless/iwlwifi/pcie/drv.c +++ b/drivers/net/wireless/iwlwifi/pcie/drv.c @@ -422,6 +422,7 @@ static const struct pci_device_id iwl_hw_card_ids[] = { /* 8000 Series */ {IWL_PCI_DEVICE(0x24F3, 0x0010, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x1010, iwl8260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24F3, 0x10B0, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x0130, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x1130, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x0132, iwl8260_2ac_cfg)}, @@ -444,6 +445,8 @@ static const struct pci_device_id iwl_hw_card_ids[] = { {IWL_PCI_DEVICE(0x24F4, 0xD030, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0xC050, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0xD050, iwl8260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24F3, 0xD0B0, iwl8260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24F3, 0xB0B0, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x8010, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x8110, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x9010, iwl8260_2ac_cfg)}, diff --git a/drivers/of/base.c b/drivers/of/base.c index 5ed97246c2e7..20f0b00dda05 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -112,6 +112,7 @@ static ssize_t of_node_property_read(struct file *filp, struct kobject *kobj, return memory_read_from_buffer(buf, count, &offset, pp->value, pp->length); } +/* always return newly allocated name, caller must free after use */ static const char *safe_name(struct kobject *kobj, const char *orig_name) { const char *name = orig_name; @@ -126,9 +127,12 @@ static const char *safe_name(struct kobject *kobj, const char *orig_name) name = kasprintf(GFP_KERNEL, "%s#%i", orig_name, ++i); } - if (name != orig_name) + if (name == orig_name) { + name = kstrdup(orig_name, GFP_KERNEL); + } else { pr_warn("device-tree: Duplicate name in %s, renamed to \"%s\"\n", kobject_name(kobj), name); + } return name; } @@ -159,6 +163,7 @@ int __of_add_property_sysfs(struct device_node *np, struct property *pp) int __of_attach_node_sysfs(struct device_node *np) { const char *name; + struct kobject *parent; struct property *pp; int rc; @@ -171,15 +176,16 @@ int __of_attach_node_sysfs(struct device_node *np) np->kobj.kset = of_kset; if (!np->parent) { /* Nodes without parents are new top level trees */ - rc = kobject_add(&np->kobj, NULL, "%s", - safe_name(&of_kset->kobj, "base")); + name = safe_name(&of_kset->kobj, "base"); + parent = NULL; } else { name = safe_name(&np->parent->kobj, kbasename(np->full_name)); - if (!name || !name[0]) - return -EINVAL; - - rc = kobject_add(&np->kobj, &np->parent->kobj, "%s", name); + parent = &np->parent->kobj; } + if (!name) + return -ENOMEM; + rc = kobject_add(&np->kobj, parent, "%s", name); + kfree(name); if (rc) return rc; @@ -1756,6 +1762,12 @@ int __of_remove_property(struct device_node *np, struct property *prop) return 0; } +void __of_sysfs_remove_bin_file(struct device_node *np, struct property *prop) +{ + sysfs_remove_bin_file(&np->kobj, &prop->attr); + kfree(prop->attr.attr.name); +} + void __of_remove_property_sysfs(struct device_node *np, struct property *prop) { if (!IS_ENABLED(CONFIG_SYSFS)) @@ -1763,7 +1775,7 @@ void __of_remove_property_sysfs(struct device_node *np, struct property *prop) /* at early boot, bail here and defer setup to of_init() */ if (of_kset && of_node_is_attached(np)) - sysfs_remove_bin_file(&np->kobj, &prop->attr); + __of_sysfs_remove_bin_file(np, prop); } /** @@ -1833,7 +1845,7 @@ void __of_update_property_sysfs(struct device_node *np, struct property *newprop return; if (oldprop) - sysfs_remove_bin_file(&np->kobj, &oldprop->attr); + __of_sysfs_remove_bin_file(np, oldprop); __of_add_property_sysfs(np, newprop); } diff --git a/drivers/of/dynamic.c b/drivers/of/dynamic.c index 53826b84e0ec..2d72ddcf534f 100644 --- a/drivers/of/dynamic.c +++ b/drivers/of/dynamic.c @@ -55,7 +55,7 @@ void __of_detach_node_sysfs(struct device_node *np) /* only remove properties if on sysfs */ if (of_node_is_attached(np)) { for_each_property_of_node(np, pp) - sysfs_remove_bin_file(&np->kobj, &pp->attr); + __of_sysfs_remove_bin_file(np, pp); kobject_del(&np->kobj); } diff --git a/drivers/of/of_private.h b/drivers/of/of_private.h index 8e882e706cd8..46ddbee22ce3 100644 --- a/drivers/of/of_private.h +++ b/drivers/of/of_private.h @@ -81,6 +81,9 @@ extern int __of_attach_node_sysfs(struct device_node *np); extern void __of_detach_node(struct device_node *np); extern void __of_detach_node_sysfs(struct device_node *np); +extern void __of_sysfs_remove_bin_file(struct device_node *np, + struct property *prop); + /* iterators for transactions, used for overlays */ /* forward iterator */ #define for_each_transaction_entry(_oft, _te) \ diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 4a6933f02cd0..ae12c0317645 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -3108,13 +3108,15 @@ static void quirk_no_bus_reset(struct pci_dev *dev) } /* - * Atheros AR93xx chips do not behave after a bus reset. The device will - * throw a Link Down error on AER-capable systems and regardless of AER, - * config space of the device is never accessible again and typically - * causes the system to hang or reset when access is attempted. + * Some Atheros AR9xxx and QCA988x chips do not behave after a bus reset. + * The device will throw a Link Down error on AER-capable systems and + * regardless of AER, config space of the device is never accessible again + * and typically causes the system to hang or reset when access is attempted. * http://www.spinics.net/lists/linux-pci/msg34797.html */ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0030, quirk_no_bus_reset); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0032, quirk_no_bus_reset); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x003c, quirk_no_bus_reset); static void quirk_no_pm_reset(struct pci_dev *dev) { diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c index 732ff757a95f..688f6b08c70f 100644 --- a/drivers/pinctrl/intel/pinctrl-cherryview.c +++ b/drivers/pinctrl/intel/pinctrl-cherryview.c @@ -160,7 +160,6 @@ struct chv_pin_context { * @pctldev: Pointer to the pin controller device * @chip: GPIO chip in this pin controller * @regs: MMIO registers - * @lock: Lock to serialize register accesses * @intr_lines: Stores mapping between 16 HW interrupt wires and GPIO * offset (in GPIO number space) * @community: Community this pinctrl instance represents @@ -174,7 +173,6 @@ struct chv_pinctrl { struct pinctrl_dev *pctldev; struct gpio_chip chip; void __iomem *regs; - spinlock_t lock; unsigned intr_lines[16]; const struct chv_community *community; u32 saved_intmask; @@ -659,6 +657,17 @@ static const struct chv_community *chv_communities[] = { &southeast_community, }; +/* + * Lock to serialize register accesses + * + * Due to a silicon issue, a shared lock must be used to prevent + * concurrent accesses across the 4 GPIO controllers. + * + * See Intel Atom Z8000 Processor Series Specification Update (Rev. 005), + * errata #CHT34, for further information. + */ +static DEFINE_RAW_SPINLOCK(chv_lock); + static void __iomem *chv_padreg(struct chv_pinctrl *pctrl, unsigned offset, unsigned reg) { @@ -720,13 +729,13 @@ static void chv_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s, u32 ctrl0, ctrl1; bool locked; - spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&chv_lock, flags); ctrl0 = readl(chv_padreg(pctrl, offset, CHV_PADCTRL0)); ctrl1 = readl(chv_padreg(pctrl, offset, CHV_PADCTRL1)); locked = chv_pad_locked(pctrl, offset); - spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); if (ctrl0 & CHV_PADCTRL0_GPIOEN) { seq_puts(s, "GPIO "); @@ -789,14 +798,14 @@ static int chv_pinmux_set_mux(struct pinctrl_dev *pctldev, unsigned function, grp = &pctrl->community->groups[group]; - spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&chv_lock, flags); /* Check first that the pad is not locked */ for (i = 0; i < grp->npins; i++) { if (chv_pad_locked(pctrl, grp->pins[i])) { dev_warn(pctrl->dev, "unable to set mode for locked pin %u\n", grp->pins[i]); - spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); return -EBUSY; } } @@ -839,7 +848,7 @@ static int chv_pinmux_set_mux(struct pinctrl_dev *pctldev, unsigned function, pin, altfunc->mode, altfunc->invert_oe ? "" : "not "); } - spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); return 0; } @@ -853,13 +862,13 @@ static int chv_gpio_request_enable(struct pinctrl_dev *pctldev, void __iomem *reg; u32 value; - spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&chv_lock, flags); if (chv_pad_locked(pctrl, offset)) { value = readl(chv_padreg(pctrl, offset, CHV_PADCTRL0)); if (!(value & CHV_PADCTRL0_GPIOEN)) { /* Locked so cannot enable */ - spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); return -EBUSY; } } else { @@ -899,7 +908,7 @@ static int chv_gpio_request_enable(struct pinctrl_dev *pctldev, chv_writel(value, reg); } - spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); return 0; } @@ -913,13 +922,13 @@ static void chv_gpio_disable_free(struct pinctrl_dev *pctldev, void __iomem *reg; u32 value; - spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&chv_lock, flags); reg = chv_padreg(pctrl, offset, CHV_PADCTRL0); value = readl(reg) & ~CHV_PADCTRL0_GPIOEN; chv_writel(value, reg); - spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); } static int chv_gpio_set_direction(struct pinctrl_dev *pctldev, @@ -931,7 +940,7 @@ static int chv_gpio_set_direction(struct pinctrl_dev *pctldev, unsigned long flags; u32 ctrl0; - spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&chv_lock, flags); ctrl0 = readl(reg) & ~CHV_PADCTRL0_GPIOCFG_MASK; if (input) @@ -940,7 +949,7 @@ static int chv_gpio_set_direction(struct pinctrl_dev *pctldev, ctrl0 |= CHV_PADCTRL0_GPIOCFG_GPO << CHV_PADCTRL0_GPIOCFG_SHIFT; chv_writel(ctrl0, reg); - spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); return 0; } @@ -965,10 +974,10 @@ static int chv_config_get(struct pinctrl_dev *pctldev, unsigned pin, u16 arg = 0; u32 term; - spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&chv_lock, flags); ctrl0 = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0)); ctrl1 = readl(chv_padreg(pctrl, pin, CHV_PADCTRL1)); - spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); term = (ctrl0 & CHV_PADCTRL0_TERM_MASK) >> CHV_PADCTRL0_TERM_SHIFT; @@ -1042,7 +1051,7 @@ static int chv_config_set_pull(struct chv_pinctrl *pctrl, unsigned pin, unsigned long flags; u32 ctrl0, pull; - spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&chv_lock, flags); ctrl0 = readl(reg); switch (param) { @@ -1065,7 +1074,7 @@ static int chv_config_set_pull(struct chv_pinctrl *pctrl, unsigned pin, pull = CHV_PADCTRL0_TERM_20K << CHV_PADCTRL0_TERM_SHIFT; break; default: - spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); return -EINVAL; } @@ -1083,7 +1092,7 @@ static int chv_config_set_pull(struct chv_pinctrl *pctrl, unsigned pin, pull = CHV_PADCTRL0_TERM_20K << CHV_PADCTRL0_TERM_SHIFT; break; default: - spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); return -EINVAL; } @@ -1091,12 +1100,12 @@ static int chv_config_set_pull(struct chv_pinctrl *pctrl, unsigned pin, break; default: - spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); return -EINVAL; } chv_writel(ctrl0, reg); - spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); return 0; } @@ -1169,9 +1178,12 @@ static int chv_gpio_get(struct gpio_chip *chip, unsigned offset) { struct chv_pinctrl *pctrl = gpiochip_to_pinctrl(chip); int pin = chv_gpio_offset_to_pin(pctrl, offset); + unsigned long flags; u32 ctrl0, cfg; + raw_spin_lock_irqsave(&chv_lock, flags); ctrl0 = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0)); + raw_spin_unlock_irqrestore(&chv_lock, flags); cfg = ctrl0 & CHV_PADCTRL0_GPIOCFG_MASK; cfg >>= CHV_PADCTRL0_GPIOCFG_SHIFT; @@ -1189,7 +1201,7 @@ static void chv_gpio_set(struct gpio_chip *chip, unsigned offset, int value) void __iomem *reg; u32 ctrl0; - spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&chv_lock, flags); reg = chv_padreg(pctrl, pin, CHV_PADCTRL0); ctrl0 = readl(reg); @@ -1201,7 +1213,7 @@ static void chv_gpio_set(struct gpio_chip *chip, unsigned offset, int value) chv_writel(ctrl0, reg); - spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); } static int chv_gpio_get_direction(struct gpio_chip *chip, unsigned offset) @@ -1209,8 +1221,11 @@ static int chv_gpio_get_direction(struct gpio_chip *chip, unsigned offset) struct chv_pinctrl *pctrl = gpiochip_to_pinctrl(chip); unsigned pin = chv_gpio_offset_to_pin(pctrl, offset); u32 ctrl0, direction; + unsigned long flags; + raw_spin_lock_irqsave(&chv_lock, flags); ctrl0 = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0)); + raw_spin_unlock_irqrestore(&chv_lock, flags); direction = ctrl0 & CHV_PADCTRL0_GPIOCFG_MASK; direction >>= CHV_PADCTRL0_GPIOCFG_SHIFT; @@ -1248,14 +1263,14 @@ static void chv_gpio_irq_ack(struct irq_data *d) int pin = chv_gpio_offset_to_pin(pctrl, irqd_to_hwirq(d)); u32 intr_line; - spin_lock(&pctrl->lock); + raw_spin_lock(&chv_lock); intr_line = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0)); intr_line &= CHV_PADCTRL0_INTSEL_MASK; intr_line >>= CHV_PADCTRL0_INTSEL_SHIFT; chv_writel(BIT(intr_line), pctrl->regs + CHV_INTSTAT); - spin_unlock(&pctrl->lock); + raw_spin_unlock(&chv_lock); } static void chv_gpio_irq_mask_unmask(struct irq_data *d, bool mask) @@ -1266,7 +1281,7 @@ static void chv_gpio_irq_mask_unmask(struct irq_data *d, bool mask) u32 value, intr_line; unsigned long flags; - spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&chv_lock, flags); intr_line = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0)); intr_line &= CHV_PADCTRL0_INTSEL_MASK; @@ -1279,7 +1294,7 @@ static void chv_gpio_irq_mask_unmask(struct irq_data *d, bool mask) value |= BIT(intr_line); chv_writel(value, pctrl->regs + CHV_INTMASK); - spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); } static void chv_gpio_irq_mask(struct irq_data *d) @@ -1313,6 +1328,7 @@ static unsigned chv_gpio_irq_startup(struct irq_data *d) unsigned long flags; u32 intsel, value; + raw_spin_lock_irqsave(&chv_lock, flags); intsel = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0)); intsel &= CHV_PADCTRL0_INTSEL_MASK; intsel >>= CHV_PADCTRL0_INTSEL_SHIFT; @@ -1323,12 +1339,11 @@ static unsigned chv_gpio_irq_startup(struct irq_data *d) else handler = handle_edge_irq; - spin_lock_irqsave(&pctrl->lock, flags); if (!pctrl->intr_lines[intsel]) { __irq_set_handler_locked(d->irq, handler); pctrl->intr_lines[intsel] = offset; } - spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); } chv_gpio_irq_unmask(d); @@ -1344,7 +1359,7 @@ static int chv_gpio_irq_type(struct irq_data *d, unsigned type) unsigned long flags; u32 value; - spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&chv_lock, flags); /* * Pins which can be used as shared interrupt are configured in @@ -1393,7 +1408,7 @@ static int chv_gpio_irq_type(struct irq_data *d, unsigned type) else if (type & IRQ_TYPE_LEVEL_MASK) __irq_set_handler_locked(d->irq, handle_level_irq); - spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); return 0; } @@ -1505,7 +1520,6 @@ static int chv_pinctrl_probe(struct platform_device *pdev) if (i == ARRAY_SIZE(chv_communities)) return -ENODEV; - spin_lock_init(&pctrl->lock); pctrl->dev = &pdev->dev; #ifdef CONFIG_PM_SLEEP diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c index fb4dd7b3ee71..af2046c87806 100644 --- a/drivers/platform/x86/hp-wmi.c +++ b/drivers/platform/x86/hp-wmi.c @@ -723,6 +723,11 @@ static int __init hp_wmi_rfkill_setup(struct platform_device *device) if (err) return err; + err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, &wireless, + sizeof(wireless), 0); + if (err) + return err; + if (wireless & 0x1) { wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev, RFKILL_TYPE_WLAN, @@ -910,7 +915,7 @@ static int __init hp_wmi_bios_setup(struct platform_device *device) gps_rfkill = NULL; rfkill2_count = 0; - if (hp_wmi_bios_2009_later() || hp_wmi_rfkill_setup(device)) + if (hp_wmi_rfkill_setup(device)) hp_wmi_rfkill2_setup(device); err = device_create_file(&device->dev, &dev_attr_display); diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c index c5a2523b0185..463003d2529c 100644 --- a/drivers/rtc/rtc-s3c.c +++ b/drivers/rtc/rtc-s3c.c @@ -149,12 +149,14 @@ static int s3c_rtc_setfreq(struct s3c_rtc *info, int freq) if (!is_power_of_2(freq)) return -EINVAL; + s3c_rtc_enable_clk(info); spin_lock_irq(&info->pie_lock); if (info->data->set_freq) info->data->set_freq(info, freq); spin_unlock_irq(&info->pie_lock); + s3c_rtc_disable_clk(info); return 0; } diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index f089082c00e1..e6b77049c756 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -477,7 +477,14 @@ static void reset_sccr1(struct driver_data *drv_data) u32 sccr1_reg; sccr1_reg = pxa2xx_spi_read(drv_data, SSCR1) & ~drv_data->int_cr1; - sccr1_reg &= ~SSCR1_RFT; + switch (drv_data->ssp_type) { + case QUARK_X1000_SSP: + sccr1_reg &= ~QUARK_X1000_SSCR1_RFT; + break; + default: + sccr1_reg &= ~SSCR1_RFT; + break; + } sccr1_reg |= chip->threshold; pxa2xx_spi_write(drv_data, SSCR1, sccr1_reg); } diff --git a/drivers/staging/iio/accel/sca3000_core.c b/drivers/staging/iio/accel/sca3000_core.c index b614f272b5f4..851fcfa98068 100644 --- a/drivers/staging/iio/accel/sca3000_core.c +++ b/drivers/staging/iio/accel/sca3000_core.c @@ -595,7 +595,7 @@ static ssize_t sca3000_read_frequency(struct device *dev, goto error_ret_mut; ret = sca3000_read_ctrl_reg(st, SCA3000_REG_CTRL_SEL_OUT_CTRL); mutex_unlock(&st->lock); - if (ret) + if (ret < 0) goto error_ret; val = ret; if (base_freq > 0) diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index 6f50e9d958de..6fad3e9fd389 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -500,7 +500,8 @@ static void iscsit_aborted_task(struct iscsi_conn *conn, struct iscsi_cmd *cmd) bool scsi_cmd = (cmd->iscsi_opcode == ISCSI_OP_SCSI_CMD); spin_lock_bh(&conn->cmd_lock); - if (!list_empty(&cmd->i_conn_node)) + if (!list_empty(&cmd->i_conn_node) && + !(cmd->se_cmd.transport_state & CMD_T_FABRIC_STOP)) list_del_init(&cmd->i_conn_node); spin_unlock_bh(&conn->cmd_lock); @@ -4215,6 +4216,7 @@ transport_err: static void iscsit_release_commands_from_conn(struct iscsi_conn *conn) { + LIST_HEAD(tmp_list); struct iscsi_cmd *cmd = NULL, *cmd_tmp = NULL; struct iscsi_session *sess = conn->sess; /* @@ -4223,18 +4225,26 @@ static void iscsit_release_commands_from_conn(struct iscsi_conn *conn) * has been reset -> returned sleeping pre-handler state. */ spin_lock_bh(&conn->cmd_lock); - list_for_each_entry_safe(cmd, cmd_tmp, &conn->conn_cmd_list, i_conn_node) { + list_splice_init(&conn->conn_cmd_list, &tmp_list); + list_for_each_entry(cmd, &tmp_list, i_conn_node) { + struct se_cmd *se_cmd = &cmd->se_cmd; + + if (se_cmd->se_tfo != NULL) { + spin_lock(&se_cmd->t_state_lock); + se_cmd->transport_state |= CMD_T_FABRIC_STOP; + spin_unlock(&se_cmd->t_state_lock); + } + } + spin_unlock_bh(&conn->cmd_lock); + + list_for_each_entry_safe(cmd, cmd_tmp, &tmp_list, i_conn_node) { list_del_init(&cmd->i_conn_node); - spin_unlock_bh(&conn->cmd_lock); iscsit_increment_maxcmdsn(cmd, sess); - iscsit_free_cmd(cmd, true); - spin_lock_bh(&conn->cmd_lock); } - spin_unlock_bh(&conn->cmd_lock); } static void iscsit_stop_timers_for_cmds( diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c index 39654e917cd8..e929205e28c6 100644 --- a/drivers/target/iscsi/iscsi_target_login.c +++ b/drivers/target/iscsi/iscsi_target_login.c @@ -1415,8 +1415,9 @@ static int __iscsi_target_login_thread(struct iscsi_np *np) } login->zero_tsih = zero_tsih; - conn->sess->se_sess->sup_prot_ops = - conn->conn_transport->iscsit_get_sup_prot_ops(conn); + if (conn->sess) + conn->sess->se_sess->sup_prot_ops = + conn->conn_transport->iscsit_get_sup_prot_ops(conn); tpg = conn->tpg; if (!tpg) { diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index e8848e7fe5d4..7580abe7cb45 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -2531,15 +2531,9 @@ static void target_release_cmd_kref(struct kref *kref) struct se_session *se_sess = se_cmd->se_sess; bool fabric_stop; - if (list_empty(&se_cmd->se_cmd_list)) { - spin_unlock(&se_sess->sess_cmd_lock); - target_free_cmd_mem(se_cmd); - se_cmd->se_tfo->release_cmd(se_cmd); - return; - } - spin_lock(&se_cmd->t_state_lock); - fabric_stop = (se_cmd->transport_state & CMD_T_FABRIC_STOP); + fabric_stop = (se_cmd->transport_state & CMD_T_FABRIC_STOP) && + (se_cmd->transport_state & CMD_T_ABORTED); spin_unlock(&se_cmd->t_state_lock); if (se_cmd->cmd_wait_set || fabric_stop) { diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index 85323ff75edf..baa888caa964 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -88,37 +88,6 @@ static void atmel_stop_rx(struct uart_port *port); #define ATMEL_ISR_PASS_LIMIT 256 -/* UART registers. CR is write-only, hence no GET macro */ -#define UART_PUT_CR(port,v) __raw_writel(v, (port)->membase + ATMEL_US_CR) -#define UART_GET_MR(port) __raw_readl((port)->membase + ATMEL_US_MR) -#define UART_PUT_MR(port,v) __raw_writel(v, (port)->membase + ATMEL_US_MR) -#define UART_PUT_IER(port,v) __raw_writel(v, (port)->membase + ATMEL_US_IER) -#define UART_PUT_IDR(port,v) __raw_writel(v, (port)->membase + ATMEL_US_IDR) -#define UART_GET_IMR(port) __raw_readl((port)->membase + ATMEL_US_IMR) -#define UART_GET_CSR(port) __raw_readl((port)->membase + ATMEL_US_CSR) -#define UART_GET_CHAR(port) __raw_readl((port)->membase + ATMEL_US_RHR) -#define UART_PUT_CHAR(port,v) __raw_writel(v, (port)->membase + ATMEL_US_THR) -#define UART_GET_BRGR(port) __raw_readl((port)->membase + ATMEL_US_BRGR) -#define UART_PUT_BRGR(port,v) __raw_writel(v, (port)->membase + ATMEL_US_BRGR) -#define UART_PUT_RTOR(port,v) __raw_writel(v, (port)->membase + ATMEL_US_RTOR) -#define UART_PUT_TTGR(port, v) __raw_writel(v, (port)->membase + ATMEL_US_TTGR) -#define UART_GET_IP_NAME(port) __raw_readl((port)->membase + ATMEL_US_NAME) -#define UART_GET_IP_VERSION(port) __raw_readl((port)->membase + ATMEL_US_VERSION) - - /* PDC registers */ -#define UART_PUT_PTCR(port,v) __raw_writel(v, (port)->membase + ATMEL_PDC_PTCR) -#define UART_GET_PTSR(port) __raw_readl((port)->membase + ATMEL_PDC_PTSR) - -#define UART_PUT_RPR(port,v) __raw_writel(v, (port)->membase + ATMEL_PDC_RPR) -#define UART_GET_RPR(port) __raw_readl((port)->membase + ATMEL_PDC_RPR) -#define UART_PUT_RCR(port,v) __raw_writel(v, (port)->membase + ATMEL_PDC_RCR) -#define UART_PUT_RNPR(port,v) __raw_writel(v, (port)->membase + ATMEL_PDC_RNPR) -#define UART_PUT_RNCR(port,v) __raw_writel(v, (port)->membase + ATMEL_PDC_RNCR) - -#define UART_PUT_TPR(port,v) __raw_writel(v, (port)->membase + ATMEL_PDC_TPR) -#define UART_PUT_TCR(port,v) __raw_writel(v, (port)->membase + ATMEL_PDC_TCR) -#define UART_GET_TCR(port) __raw_readl((port)->membase + ATMEL_PDC_TCR) - struct atmel_dma_buffer { unsigned char *buf; dma_addr_t dma_addr; @@ -211,6 +180,16 @@ to_atmel_uart_port(struct uart_port *uart) return container_of(uart, struct atmel_uart_port, uart); } +static inline u32 atmel_uart_readl(struct uart_port *port, u32 reg) +{ + return __raw_readl(port->membase + reg); +} + +static inline void atmel_uart_writel(struct uart_port *port, u32 reg, u32 value) +{ + __raw_writel(value, port->membase + reg); +} + #ifdef CONFIG_SERIAL_ATMEL_PDC static bool atmel_use_pdc_rx(struct uart_port *port) { @@ -256,7 +235,7 @@ static unsigned int atmel_get_lines_status(struct uart_port *port) struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); unsigned int status, ret = 0; - status = UART_GET_CSR(port); + status = atmel_uart_readl(port, ATMEL_US_CSR); mctrl_gpio_get(atmel_port->gpios, &ret); @@ -303,9 +282,9 @@ static int atmel_config_rs485(struct uart_port *port, unsigned int mode; /* Disable interrupts */ - UART_PUT_IDR(port, atmel_port->tx_done_mask); + atmel_uart_writel(port, ATMEL_US_IDR, atmel_port->tx_done_mask); - mode = UART_GET_MR(port); + mode = atmel_uart_readl(port, ATMEL_US_MR); /* Resetting serial mode to RS232 (0x0) */ mode &= ~ATMEL_US_USMODE; @@ -315,7 +294,8 @@ static int atmel_config_rs485(struct uart_port *port, if (rs485conf->flags & SER_RS485_ENABLED) { dev_dbg(port->dev, "Setting UART to RS485\n"); atmel_port->tx_done_mask = ATMEL_US_TXEMPTY; - UART_PUT_TTGR(port, rs485conf->delay_rts_after_send); + atmel_uart_writel(port, ATMEL_US_TTGR, + rs485conf->delay_rts_after_send); mode |= ATMEL_US_USMODE_RS485; } else { dev_dbg(port->dev, "Setting UART to RS232\n"); @@ -325,10 +305,10 @@ static int atmel_config_rs485(struct uart_port *port, else atmel_port->tx_done_mask = ATMEL_US_TXRDY; } - UART_PUT_MR(port, mode); + atmel_uart_writel(port, ATMEL_US_MR, mode); /* Enable interrupts */ - UART_PUT_IER(port, atmel_port->tx_done_mask); + atmel_uart_writel(port, ATMEL_US_IER, atmel_port->tx_done_mask); return 0; } @@ -338,7 +318,9 @@ static int atmel_config_rs485(struct uart_port *port, */ static u_int atmel_tx_empty(struct uart_port *port) { - return (UART_GET_CSR(port) & ATMEL_US_TXEMPTY) ? TIOCSER_TEMT : 0; + return (atmel_uart_readl(port, ATMEL_US_CSR) & ATMEL_US_TXEMPTY) ? + TIOCSER_TEMT : + 0; } /* @@ -347,13 +329,14 @@ static u_int atmel_tx_empty(struct uart_port *port) static void atmel_set_mctrl(struct uart_port *port, u_int mctrl) { unsigned int control = 0; - unsigned int mode = UART_GET_MR(port); + unsigned int mode = atmel_uart_readl(port, ATMEL_US_MR); unsigned int rts_paused, rts_ready; struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); /* override mode to RS485 if needed, otherwise keep the current mode */ if (port->rs485.flags & SER_RS485_ENABLED) { - UART_PUT_TTGR(port, port->rs485.delay_rts_after_send); + atmel_uart_writel(port, ATMEL_US_TTGR, + port->rs485.delay_rts_after_send); mode &= ~ATMEL_US_USMODE; mode |= ATMEL_US_USMODE_RS485; } @@ -383,7 +366,7 @@ static void atmel_set_mctrl(struct uart_port *port, u_int mctrl) else control |= ATMEL_US_DTRDIS; - UART_PUT_CR(port, control); + atmel_uart_writel(port, ATMEL_US_CR, control); mctrl_gpio_set(atmel_port->gpios, mctrl); @@ -394,7 +377,7 @@ static void atmel_set_mctrl(struct uart_port *port, u_int mctrl) else mode |= ATMEL_US_CHMODE_NORMAL; - UART_PUT_MR(port, mode); + atmel_uart_writel(port, ATMEL_US_MR, mode); } /* @@ -405,7 +388,7 @@ static u_int atmel_get_mctrl(struct uart_port *port) struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); unsigned int ret = 0, status; - status = UART_GET_CSR(port); + status = atmel_uart_readl(port, ATMEL_US_CSR); /* * The control signals are active low. @@ -431,10 +414,10 @@ static void atmel_stop_tx(struct uart_port *port) if (atmel_use_pdc_tx(port)) { /* disable PDC transmit */ - UART_PUT_PTCR(port, ATMEL_PDC_TXTDIS); + atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTDIS); } /* Disable interrupts */ - UART_PUT_IDR(port, atmel_port->tx_done_mask); + atmel_uart_writel(port, ATMEL_US_IDR, atmel_port->tx_done_mask); if ((port->rs485.flags & SER_RS485_ENABLED) && !(port->rs485.flags & SER_RS485_RX_DURING_TX)) @@ -448,21 +431,23 @@ static void atmel_start_tx(struct uart_port *port) { struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); - if (atmel_use_pdc_tx(port)) { - if (UART_GET_PTSR(port) & ATMEL_PDC_TXTEN) - /* The transmitter is already running. Yes, we - really need this.*/ - return; + if (atmel_use_pdc_tx(port) && (atmel_uart_readl(port, ATMEL_PDC_PTSR) + & ATMEL_PDC_TXTEN)) + /* The transmitter is already running. Yes, we + really need this.*/ + return; + if (atmel_use_pdc_tx(port) || atmel_use_dma_tx(port)) if ((port->rs485.flags & SER_RS485_ENABLED) && !(port->rs485.flags & SER_RS485_RX_DURING_TX)) atmel_stop_rx(port); + if (atmel_use_pdc_tx(port)) /* re-enable PDC transmit */ - UART_PUT_PTCR(port, ATMEL_PDC_TXTEN); - } + atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTEN); + /* Enable interrupts */ - UART_PUT_IER(port, atmel_port->tx_done_mask); + atmel_uart_writel(port, ATMEL_US_IER, atmel_port->tx_done_mask); } /* @@ -470,17 +455,19 @@ static void atmel_start_tx(struct uart_port *port) */ static void atmel_start_rx(struct uart_port *port) { - UART_PUT_CR(port, ATMEL_US_RSTSTA); /* reset status and receiver */ + /* reset status and receiver */ + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA); - UART_PUT_CR(port, ATMEL_US_RXEN); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RXEN); if (atmel_use_pdc_rx(port)) { /* enable PDC controller */ - UART_PUT_IER(port, ATMEL_US_ENDRX | ATMEL_US_TIMEOUT | - port->read_status_mask); - UART_PUT_PTCR(port, ATMEL_PDC_RXTEN); + atmel_uart_writel(port, ATMEL_US_IER, + ATMEL_US_ENDRX | ATMEL_US_TIMEOUT | + port->read_status_mask); + atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_RXTEN); } else { - UART_PUT_IER(port, ATMEL_US_RXRDY); + atmel_uart_writel(port, ATMEL_US_IER, ATMEL_US_RXRDY); } } @@ -489,15 +476,16 @@ static void atmel_start_rx(struct uart_port *port) */ static void atmel_stop_rx(struct uart_port *port) { - UART_PUT_CR(port, ATMEL_US_RXDIS); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RXDIS); if (atmel_use_pdc_rx(port)) { /* disable PDC receive */ - UART_PUT_PTCR(port, ATMEL_PDC_RXTDIS); - UART_PUT_IDR(port, ATMEL_US_ENDRX | ATMEL_US_TIMEOUT | - port->read_status_mask); + atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_RXTDIS); + atmel_uart_writel(port, ATMEL_US_IDR, + ATMEL_US_ENDRX | ATMEL_US_TIMEOUT | + port->read_status_mask); } else { - UART_PUT_IDR(port, ATMEL_US_RXRDY); + atmel_uart_writel(port, ATMEL_US_IDR, ATMEL_US_RXRDY); } } @@ -537,7 +525,7 @@ static void atmel_enable_ms(struct uart_port *port) else ier |= ATMEL_US_DCDIC; - UART_PUT_IER(port, ier); + atmel_uart_writel(port, ATMEL_US_IER, ier); } /* @@ -576,7 +564,7 @@ static void atmel_disable_ms(struct uart_port *port) else idr |= ATMEL_US_DCDIC; - UART_PUT_IDR(port, idr); + atmel_uart_writel(port, ATMEL_US_IDR, idr); } /* @@ -585,9 +573,11 @@ static void atmel_disable_ms(struct uart_port *port) static void atmel_break_ctl(struct uart_port *port, int break_state) { if (break_state != 0) - UART_PUT_CR(port, ATMEL_US_STTBRK); /* start break */ + /* start break */ + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_STTBRK); else - UART_PUT_CR(port, ATMEL_US_STPBRK); /* stop break */ + /* stop break */ + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_STPBRK); } /* @@ -621,7 +611,7 @@ atmel_buffer_rx_char(struct uart_port *port, unsigned int status, static void atmel_pdc_rxerr(struct uart_port *port, unsigned int status) { /* clear error */ - UART_PUT_CR(port, ATMEL_US_RSTSTA); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA); if (status & ATMEL_US_RXBRK) { /* ignore side-effect */ @@ -644,9 +634,9 @@ static void atmel_rx_chars(struct uart_port *port) struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); unsigned int status, ch; - status = UART_GET_CSR(port); + status = atmel_uart_readl(port, ATMEL_US_CSR); while (status & ATMEL_US_RXRDY) { - ch = UART_GET_CHAR(port); + ch = atmel_uart_readl(port, ATMEL_US_RHR); /* * note that the error handling code is @@ -657,12 +647,13 @@ static void atmel_rx_chars(struct uart_port *port) || atmel_port->break_active)) { /* clear error */ - UART_PUT_CR(port, ATMEL_US_RSTSTA); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA); if (status & ATMEL_US_RXBRK && !atmel_port->break_active) { atmel_port->break_active = 1; - UART_PUT_IER(port, ATMEL_US_RXBRK); + atmel_uart_writel(port, ATMEL_US_IER, + ATMEL_US_RXBRK); } else { /* * This is either the end-of-break @@ -671,14 +662,15 @@ static void atmel_rx_chars(struct uart_port *port) * being set. In both cases, the next * RXBRK will indicate start-of-break. */ - UART_PUT_IDR(port, ATMEL_US_RXBRK); + atmel_uart_writel(port, ATMEL_US_IDR, + ATMEL_US_RXBRK); status &= ~ATMEL_US_RXBRK; atmel_port->break_active = 0; } } atmel_buffer_rx_char(port, status, ch); - status = UART_GET_CSR(port); + status = atmel_uart_readl(port, ATMEL_US_CSR); } tasklet_schedule(&atmel_port->tasklet); @@ -693,16 +685,18 @@ static void atmel_tx_chars(struct uart_port *port) struct circ_buf *xmit = &port->state->xmit; struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); - if (port->x_char && UART_GET_CSR(port) & atmel_port->tx_done_mask) { - UART_PUT_CHAR(port, port->x_char); + if (port->x_char && + (atmel_uart_readl(port, ATMEL_US_CSR) & atmel_port->tx_done_mask)) { + atmel_uart_writel(port, ATMEL_US_THR, port->x_char); port->icount.tx++; port->x_char = 0; } if (uart_circ_empty(xmit) || uart_tx_stopped(port)) return; - while (UART_GET_CSR(port) & atmel_port->tx_done_mask) { - UART_PUT_CHAR(port, xmit->buf[xmit->tail]); + while (atmel_uart_readl(port, ATMEL_US_CSR) & + atmel_port->tx_done_mask) { + atmel_uart_writel(port, ATMEL_US_THR, xmit->buf[xmit->tail]); xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); port->icount.tx++; if (uart_circ_empty(xmit)) @@ -714,7 +708,8 @@ static void atmel_tx_chars(struct uart_port *port) if (!uart_circ_empty(xmit)) /* Enable interrupts */ - UART_PUT_IER(port, atmel_port->tx_done_mask); + atmel_uart_writel(port, ATMEL_US_IER, + atmel_port->tx_done_mask); } static void atmel_complete_tx_dma(void *arg) @@ -934,14 +929,14 @@ static void atmel_rx_from_dma(struct uart_port *port) /* Reset the UART timeout early so that we don't miss one */ - UART_PUT_CR(port, ATMEL_US_STTTO); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_STTTO); dmastat = dmaengine_tx_status(chan, atmel_port->cookie_rx, &state); /* Restart a new tasklet if DMA status is error */ if (dmastat == DMA_ERROR) { dev_dbg(port->dev, "Get residue error, restart tasklet\n"); - UART_PUT_IER(port, ATMEL_US_TIMEOUT); + atmel_uart_writel(port, ATMEL_US_IER, ATMEL_US_TIMEOUT); tasklet_schedule(&atmel_port->tasklet); return; } @@ -1007,7 +1002,7 @@ static void atmel_rx_from_dma(struct uart_port *port) tty_flip_buffer_push(tport); spin_lock(&port->lock); - UART_PUT_IER(port, ATMEL_US_TIMEOUT); + atmel_uart_writel(port, ATMEL_US_IER, ATMEL_US_TIMEOUT); } static int atmel_prepare_rx_dma(struct uart_port *port) @@ -1117,8 +1112,8 @@ atmel_handle_receive(struct uart_port *port, unsigned int pending) * the moment. */ if (pending & (ATMEL_US_ENDRX | ATMEL_US_TIMEOUT)) { - UART_PUT_IDR(port, (ATMEL_US_ENDRX - | ATMEL_US_TIMEOUT)); + atmel_uart_writel(port, ATMEL_US_IDR, + (ATMEL_US_ENDRX | ATMEL_US_TIMEOUT)); tasklet_schedule(&atmel_port->tasklet); } @@ -1129,7 +1124,8 @@ atmel_handle_receive(struct uart_port *port, unsigned int pending) if (atmel_use_dma_rx(port)) { if (pending & ATMEL_US_TIMEOUT) { - UART_PUT_IDR(port, ATMEL_US_TIMEOUT); + atmel_uart_writel(port, ATMEL_US_IDR, + ATMEL_US_TIMEOUT); tasklet_schedule(&atmel_port->tasklet); } } @@ -1142,8 +1138,8 @@ atmel_handle_receive(struct uart_port *port, unsigned int pending) * End of break detected. If it came along with a * character, atmel_rx_chars will handle it. */ - UART_PUT_CR(port, ATMEL_US_RSTSTA); - UART_PUT_IDR(port, ATMEL_US_RXBRK); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA); + atmel_uart_writel(port, ATMEL_US_IDR, ATMEL_US_RXBRK); atmel_port->break_active = 0; } } @@ -1158,7 +1154,8 @@ atmel_handle_transmit(struct uart_port *port, unsigned int pending) if (pending & atmel_port->tx_done_mask) { /* Either PDC or interrupt transmission */ - UART_PUT_IDR(port, atmel_port->tx_done_mask); + atmel_uart_writel(port, ATMEL_US_IDR, + atmel_port->tx_done_mask); tasklet_schedule(&atmel_port->tasklet); } } @@ -1193,7 +1190,7 @@ static irqreturn_t atmel_interrupt(int irq, void *dev_id) do { status = atmel_get_lines_status(port); - mask = UART_GET_IMR(port); + mask = atmel_uart_readl(port, ATMEL_US_IMR); pending = status & mask; if (!gpio_handled) { /* @@ -1219,7 +1216,7 @@ static irqreturn_t atmel_interrupt(int irq, void *dev_id) if (atmel_port->suspended) { atmel_port->pending |= pending; atmel_port->pending_status = status; - UART_PUT_IDR(port, mask); + atmel_uart_writel(port, ATMEL_US_IDR, mask); pm_system_wakeup(); break; } @@ -1256,7 +1253,7 @@ static void atmel_tx_pdc(struct uart_port *port) int count; /* nothing left to transmit? */ - if (UART_GET_TCR(port)) + if (atmel_uart_readl(port, ATMEL_PDC_TCR)) return; xmit->tail += pdc->ofs; @@ -1268,7 +1265,7 @@ static void atmel_tx_pdc(struct uart_port *port) /* more to transmit - setup next transfer */ /* disable PDC transmit */ - UART_PUT_PTCR(port, ATMEL_PDC_TXTDIS); + atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTDIS); if (!uart_circ_empty(xmit) && !uart_tx_stopped(port)) { dma_sync_single_for_device(port->dev, @@ -1279,12 +1276,14 @@ static void atmel_tx_pdc(struct uart_port *port) count = CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE); pdc->ofs = count; - UART_PUT_TPR(port, pdc->dma_addr + xmit->tail); - UART_PUT_TCR(port, count); + atmel_uart_writel(port, ATMEL_PDC_TPR, + pdc->dma_addr + xmit->tail); + atmel_uart_writel(port, ATMEL_PDC_TCR, count); /* re-enable PDC transmit */ - UART_PUT_PTCR(port, ATMEL_PDC_TXTEN); + atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTEN); /* Enable interrupts */ - UART_PUT_IER(port, atmel_port->tx_done_mask); + atmel_uart_writel(port, ATMEL_US_IER, + atmel_port->tx_done_mask); } else { if ((port->rs485.flags & SER_RS485_ENABLED) && !(port->rs485.flags & SER_RS485_RX_DURING_TX)) { @@ -1410,10 +1409,10 @@ static void atmel_rx_from_pdc(struct uart_port *port) do { /* Reset the UART timeout early so that we don't miss one */ - UART_PUT_CR(port, ATMEL_US_STTTO); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_STTTO); pdc = &atmel_port->pdc_rx[rx_idx]; - head = UART_GET_RPR(port) - pdc->dma_addr; + head = atmel_uart_readl(port, ATMEL_PDC_RPR) - pdc->dma_addr; tail = pdc->ofs; /* If the PDC has switched buffers, RPR won't contain @@ -1456,8 +1455,8 @@ static void atmel_rx_from_pdc(struct uart_port *port) */ if (head >= pdc->dma_size) { pdc->ofs = 0; - UART_PUT_RNPR(port, pdc->dma_addr); - UART_PUT_RNCR(port, pdc->dma_size); + atmel_uart_writel(port, ATMEL_PDC_RNPR, pdc->dma_addr); + atmel_uart_writel(port, ATMEL_PDC_RNCR, pdc->dma_size); rx_idx = !rx_idx; atmel_port->pdc_rx_idx = rx_idx; @@ -1472,7 +1471,8 @@ static void atmel_rx_from_pdc(struct uart_port *port) tty_flip_buffer_push(tport); spin_lock(&port->lock); - UART_PUT_IER(port, ATMEL_US_ENDRX | ATMEL_US_TIMEOUT); + atmel_uart_writel(port, ATMEL_US_IER, + ATMEL_US_ENDRX | ATMEL_US_TIMEOUT); } static int atmel_prepare_rx_pdc(struct uart_port *port) @@ -1505,11 +1505,12 @@ static int atmel_prepare_rx_pdc(struct uart_port *port) atmel_port->pdc_rx_idx = 0; - UART_PUT_RPR(port, atmel_port->pdc_rx[0].dma_addr); - UART_PUT_RCR(port, PDC_BUFFER_SIZE); + atmel_uart_writel(port, ATMEL_PDC_RPR, atmel_port->pdc_rx[0].dma_addr); + atmel_uart_writel(port, ATMEL_PDC_RCR, PDC_BUFFER_SIZE); - UART_PUT_RNPR(port, atmel_port->pdc_rx[1].dma_addr); - UART_PUT_RNCR(port, PDC_BUFFER_SIZE); + atmel_uart_writel(port, ATMEL_PDC_RNPR, + atmel_port->pdc_rx[1].dma_addr); + atmel_uart_writel(port, ATMEL_PDC_RNCR, PDC_BUFFER_SIZE); return 0; } @@ -1666,7 +1667,7 @@ static void atmel_set_ops(struct uart_port *port) static void atmel_get_ip_name(struct uart_port *port) { struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); - int name = UART_GET_IP_NAME(port); + int name = atmel_uart_readl(port, ATMEL_US_NAME); u32 version; int usart, uart; /* usart and uart ascii */ @@ -1683,7 +1684,7 @@ static void atmel_get_ip_name(struct uart_port *port) atmel_port->is_usart = false; } else { /* fallback for older SoCs: use version field */ - version = UART_GET_IP_VERSION(port); + version = atmel_uart_readl(port, ATMEL_US_VERSION); switch (version) { case 0x302: case 0x10213: @@ -1755,7 +1756,7 @@ static int atmel_startup(struct uart_port *port) * request_irq() is called we could get stuck trying to * handle an unexpected interrupt */ - UART_PUT_IDR(port, -1); + atmel_uart_writel(port, ATMEL_US_IDR, -1); atmel_port->ms_irq_enabled = false; /* @@ -1803,9 +1804,9 @@ static int atmel_startup(struct uart_port *port) /* * Finally, enable the serial port */ - UART_PUT_CR(port, ATMEL_US_RSTSTA | ATMEL_US_RSTRX); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA | ATMEL_US_RSTRX); /* enable xmit & rcvr */ - UART_PUT_CR(port, ATMEL_US_TXEN | ATMEL_US_RXEN); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN | ATMEL_US_RXEN); setup_timer(&atmel_port->uart_timer, atmel_uart_timer_callback, @@ -1818,13 +1819,14 @@ static int atmel_startup(struct uart_port *port) jiffies + uart_poll_timeout(port)); /* set USART timeout */ } else { - UART_PUT_RTOR(port, PDC_RX_TIMEOUT); - UART_PUT_CR(port, ATMEL_US_STTTO); + atmel_uart_writel(port, ATMEL_US_RTOR, PDC_RX_TIMEOUT); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_STTTO); - UART_PUT_IER(port, ATMEL_US_ENDRX | ATMEL_US_TIMEOUT); + atmel_uart_writel(port, ATMEL_US_IER, + ATMEL_US_ENDRX | ATMEL_US_TIMEOUT); } /* enable PDC controller */ - UART_PUT_PTCR(port, ATMEL_PDC_RXTEN); + atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_RXTEN); } else if (atmel_use_dma_rx(port)) { /* set UART timeout */ if (!atmel_port->is_usart) { @@ -1832,14 +1834,15 @@ static int atmel_startup(struct uart_port *port) jiffies + uart_poll_timeout(port)); /* set USART timeout */ } else { - UART_PUT_RTOR(port, PDC_RX_TIMEOUT); - UART_PUT_CR(port, ATMEL_US_STTTO); + atmel_uart_writel(port, ATMEL_US_RTOR, PDC_RX_TIMEOUT); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_STTTO); - UART_PUT_IER(port, ATMEL_US_TIMEOUT); + atmel_uart_writel(port, ATMEL_US_IER, + ATMEL_US_TIMEOUT); } } else { /* enable receive only */ - UART_PUT_IER(port, ATMEL_US_RXRDY); + atmel_uart_writel(port, ATMEL_US_IER, ATMEL_US_RXRDY); } return 0; @@ -1859,7 +1862,7 @@ static void atmel_flush_buffer(struct uart_port *port) struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); if (atmel_use_pdc_tx(port)) { - UART_PUT_TCR(port, 0); + atmel_uart_writel(port, ATMEL_PDC_TCR, 0); atmel_port->pdc_tx.ofs = 0; } } @@ -1891,8 +1894,8 @@ static void atmel_shutdown(struct uart_port *port) atmel_stop_rx(port); atmel_stop_tx(port); - UART_PUT_CR(port, ATMEL_US_RSTSTA); - UART_PUT_IDR(port, -1); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA); + atmel_uart_writel(port, ATMEL_US_IDR, -1); /* @@ -1937,12 +1940,12 @@ static void atmel_serial_pm(struct uart_port *port, unsigned int state, clk_prepare_enable(atmel_port->clk); /* re-enable interrupts if we disabled some on suspend */ - UART_PUT_IER(port, atmel_port->backup_imr); + atmel_uart_writel(port, ATMEL_US_IER, atmel_port->backup_imr); break; case 3: /* Back up the interrupt mask and disable all interrupts */ - atmel_port->backup_imr = UART_GET_IMR(port); - UART_PUT_IDR(port, -1); + atmel_port->backup_imr = atmel_uart_readl(port, ATMEL_US_IMR); + atmel_uart_writel(port, ATMEL_US_IDR, -1); /* * Disable the peripheral clock for this serial port. @@ -1965,7 +1968,7 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios *termios, unsigned int old_mode, mode, imr, quot, baud; /* save the current mode register */ - mode = old_mode = UART_GET_MR(port); + mode = old_mode = atmel_uart_readl(port, ATMEL_US_MR); /* reset the mode, clock divisor, parity, stop bits and data size */ mode &= ~(ATMEL_US_USCLKS | ATMEL_US_CHRL | ATMEL_US_NBSTOP | @@ -2024,7 +2027,7 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios *termios, if (atmel_use_pdc_rx(port)) /* need to enable error interrupts */ - UART_PUT_IER(port, port->read_status_mask); + atmel_uart_writel(port, ATMEL_US_IER, port->read_status_mask); /* * Characters to ignore @@ -2051,15 +2054,16 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios *termios, * transmitter is empty if requested by the caller, so there's * no need to wait for it here. */ - imr = UART_GET_IMR(port); - UART_PUT_IDR(port, -1); + imr = atmel_uart_readl(port, ATMEL_US_IMR); + atmel_uart_writel(port, ATMEL_US_IDR, -1); /* disable receiver and transmitter */ - UART_PUT_CR(port, ATMEL_US_TXDIS | ATMEL_US_RXDIS); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXDIS | ATMEL_US_RXDIS); /* mode */ if (port->rs485.flags & SER_RS485_ENABLED) { - UART_PUT_TTGR(port, port->rs485.delay_rts_after_send); + atmel_uart_writel(port, ATMEL_US_TTGR, + port->rs485.delay_rts_after_send); mode |= ATMEL_US_USMODE_RS485; } else if (termios->c_cflag & CRTSCTS) { /* RS232 with hardware handshake (RTS/CTS) */ @@ -2070,7 +2074,7 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios *termios, } /* set the mode, clock divisor, parity, stop bits and data size */ - UART_PUT_MR(port, mode); + atmel_uart_writel(port, ATMEL_US_MR, mode); /* * when switching the mode, set the RTS line state according to the @@ -2087,16 +2091,16 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios *termios, rts_state = ATMEL_US_RTSEN; } - UART_PUT_CR(port, rts_state); + atmel_uart_writel(port, ATMEL_US_CR, rts_state); } /* set the baud rate */ - UART_PUT_BRGR(port, quot); - UART_PUT_CR(port, ATMEL_US_RSTSTA | ATMEL_US_RSTRX); - UART_PUT_CR(port, ATMEL_US_TXEN | ATMEL_US_RXEN); + atmel_uart_writel(port, ATMEL_US_BRGR, quot); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA | ATMEL_US_RSTRX); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN | ATMEL_US_RXEN); /* restore interrupts */ - UART_PUT_IER(port, imr); + atmel_uart_writel(port, ATMEL_US_IER, imr); /* CTS flow-control and modem-status interrupts */ if (UART_ENABLE_MS(port, termios->c_cflag)) @@ -2207,18 +2211,18 @@ static int atmel_verify_port(struct uart_port *port, struct serial_struct *ser) #ifdef CONFIG_CONSOLE_POLL static int atmel_poll_get_char(struct uart_port *port) { - while (!(UART_GET_CSR(port) & ATMEL_US_RXRDY)) + while (!(atmel_uart_readl(port, ATMEL_US_CSR) & ATMEL_US_RXRDY)) cpu_relax(); - return UART_GET_CHAR(port); + return atmel_uart_readl(port, ATMEL_US_RHR); } static void atmel_poll_put_char(struct uart_port *port, unsigned char ch) { - while (!(UART_GET_CSR(port) & ATMEL_US_TXRDY)) + while (!(atmel_uart_readl(port, ATMEL_US_CSR) & ATMEL_US_TXRDY)) cpu_relax(); - UART_PUT_CHAR(port, ch); + atmel_uart_writel(port, ATMEL_US_THR, ch); } #endif @@ -2323,9 +2327,9 @@ struct platform_device *atmel_default_console_device; /* the serial console devi #ifdef CONFIG_SERIAL_ATMEL_CONSOLE static void atmel_console_putchar(struct uart_port *port, int ch) { - while (!(UART_GET_CSR(port) & ATMEL_US_TXRDY)) + while (!(atmel_uart_readl(port, ATMEL_US_CSR) & ATMEL_US_TXRDY)) cpu_relax(); - UART_PUT_CHAR(port, ch); + atmel_uart_writel(port, ATMEL_US_THR, ch); } /* @@ -2341,12 +2345,13 @@ static void atmel_console_write(struct console *co, const char *s, u_int count) /* * First, save IMR and then disable interrupts */ - imr = UART_GET_IMR(port); - UART_PUT_IDR(port, ATMEL_US_RXRDY | atmel_port->tx_done_mask); + imr = atmel_uart_readl(port, ATMEL_US_IMR); + atmel_uart_writel(port, ATMEL_US_IDR, + ATMEL_US_RXRDY | atmel_port->tx_done_mask); /* Store PDC transmit status and disable it */ - pdc_tx = UART_GET_PTSR(port) & ATMEL_PDC_TXTEN; - UART_PUT_PTCR(port, ATMEL_PDC_TXTDIS); + pdc_tx = atmel_uart_readl(port, ATMEL_PDC_PTSR) & ATMEL_PDC_TXTEN; + atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTDIS); uart_console_write(port, s, count, atmel_console_putchar); @@ -2355,15 +2360,15 @@ static void atmel_console_write(struct console *co, const char *s, u_int count) * and restore IMR */ do { - status = UART_GET_CSR(port); + status = atmel_uart_readl(port, ATMEL_US_CSR); } while (!(status & ATMEL_US_TXRDY)); /* Restore PDC transmit status */ if (pdc_tx) - UART_PUT_PTCR(port, ATMEL_PDC_TXTEN); + atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTEN); /* set interrupts back the way they were */ - UART_PUT_IER(port, imr); + atmel_uart_writel(port, ATMEL_US_IER, imr); } /* @@ -2379,17 +2384,17 @@ static void __init atmel_console_get_options(struct uart_port *port, int *baud, * If the baud rate generator isn't running, the port wasn't * initialized by the boot loader. */ - quot = UART_GET_BRGR(port) & ATMEL_US_CD; + quot = atmel_uart_readl(port, ATMEL_US_BRGR) & ATMEL_US_CD; if (!quot) return; - mr = UART_GET_MR(port) & ATMEL_US_CHRL; + mr = atmel_uart_readl(port, ATMEL_US_MR) & ATMEL_US_CHRL; if (mr == ATMEL_US_CHRL_8) *bits = 8; else *bits = 7; - mr = UART_GET_MR(port) & ATMEL_US_PAR; + mr = atmel_uart_readl(port, ATMEL_US_MR) & ATMEL_US_PAR; if (mr == ATMEL_US_PAR_EVEN) *parity = 'e'; else if (mr == ATMEL_US_PAR_ODD) @@ -2422,9 +2427,9 @@ static int __init atmel_console_setup(struct console *co, char *options) if (ret) return ret; - UART_PUT_IDR(port, -1); - UART_PUT_CR(port, ATMEL_US_RSTSTA | ATMEL_US_RSTRX); - UART_PUT_CR(port, ATMEL_US_TXEN | ATMEL_US_RXEN); + atmel_uart_writel(port, ATMEL_US_IDR, -1); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA | ATMEL_US_RSTRX); + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN | ATMEL_US_RXEN); if (options) uart_parse_options(options, &baud, &parity, &bits, &flow); @@ -2531,7 +2536,8 @@ static int atmel_serial_suspend(struct platform_device *pdev, if (atmel_is_console_port(port) && console_suspend_enabled) { /* Drain the TX shifter */ - while (!(UART_GET_CSR(port) & ATMEL_US_TXEMPTY)) + while (!(atmel_uart_readl(port, ATMEL_US_CSR) & + ATMEL_US_TXEMPTY)) cpu_relax(); } @@ -2683,8 +2689,9 @@ static int atmel_serial_probe(struct platform_device *pdev) clk_prepare_enable(port->clk); if (rs485_enabled) { - UART_PUT_MR(&port->uart, ATMEL_US_USMODE_NORMAL); - UART_PUT_CR(&port->uart, ATMEL_US_RTSEN); + atmel_uart_writel(&port->uart, ATMEL_US_MR, + ATMEL_US_USMODE_NORMAL); + atmel_uart_writel(&port->uart, ATMEL_US_CR, ATMEL_US_RTSEN); } /* diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c index e42cb6bdd31d..10f83076826d 100644 --- a/drivers/tty/serial/samsung.c +++ b/drivers/tty/serial/samsung.c @@ -1701,7 +1701,7 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport, return -ENODEV; if (port->mapbase != 0) - return 0; + return -EINVAL; /* setup info for port */ port->dev = &platdev->dev; @@ -1755,22 +1755,25 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport, ourport->dma = devm_kzalloc(port->dev, sizeof(*ourport->dma), GFP_KERNEL); - if (!ourport->dma) - return -ENOMEM; + if (!ourport->dma) { + ret = -ENOMEM; + goto err; + } } ourport->clk = clk_get(&platdev->dev, "uart"); if (IS_ERR(ourport->clk)) { pr_err("%s: Controller clock not found\n", dev_name(&platdev->dev)); - return PTR_ERR(ourport->clk); + ret = PTR_ERR(ourport->clk); + goto err; } ret = clk_prepare_enable(ourport->clk); if (ret) { pr_err("uart: clock failed to prepare+enable: %d\n", ret); clk_put(ourport->clk); - return ret; + goto err; } /* Keep all interrupts masked and cleared */ @@ -1786,7 +1789,12 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport, /* reset the fifos (and setup the uart) */ s3c24xx_serial_resetport(port, cfg); + return 0; + +err: + port->mapbase = 0; + return ret; } /* Device driver serial port probe */ diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index f28b5375e2c8..d2e50a27140c 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -128,6 +128,12 @@ static const struct usb_device_id usb_quirk_list[] = { { USB_DEVICE(0x04f3, 0x016f), .driver_info = USB_QUIRK_DEVICE_QUALIFIER }, + { USB_DEVICE(0x04f3, 0x0381), .driver_info = + USB_QUIRK_NO_LPM }, + + { USB_DEVICE(0x04f3, 0x21b8), .driver_info = + USB_QUIRK_DEVICE_QUALIFIER }, + /* Roland SC-8820 */ { USB_DEVICE(0x0582, 0x0007), .driver_info = USB_QUIRK_RESET_RESUME }, diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index b886226be241..f4c6e81df034 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1939,6 +1939,10 @@ static int dwc3_cleanup_done_reqs(struct dwc3 *dwc, struct dwc3_ep *dep, return 1; } + if (usb_endpoint_xfer_isoc(dep->endpoint.desc)) + if ((event->status & DEPEVT_STATUS_IOC) && + (trb->ctrl & DWC3_TRB_CTRL_IOC)) + return 0; return 1; } diff --git a/drivers/usb/host/ohci-q.c b/drivers/usb/host/ohci-q.c index fe1d5fc7da2d..47d2c09e4f35 100644 --- a/drivers/usb/host/ohci-q.c +++ b/drivers/usb/host/ohci-q.c @@ -183,7 +183,6 @@ static int ed_schedule (struct ohci_hcd *ohci, struct ed *ed) { int branch; - ed->state = ED_OPER; ed->ed_prev = NULL; ed->ed_next = NULL; ed->hwNextED = 0; @@ -259,6 +258,8 @@ static int ed_schedule (struct ohci_hcd *ohci, struct ed *ed) /* the HC may not see the schedule updates yet, but if it does * then they'll be properly ordered. */ + + ed->state = ED_OPER; return 0; } diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c index f1893e08e51a..db565f620f82 100644 --- a/drivers/usb/renesas_usbhs/fifo.c +++ b/drivers/usb/renesas_usbhs/fifo.c @@ -808,20 +808,27 @@ static void xfer_work(struct work_struct *work) { struct usbhs_pkt *pkt = container_of(work, struct usbhs_pkt, work); struct usbhs_pipe *pipe = pkt->pipe; - struct usbhs_fifo *fifo = usbhs_pipe_to_fifo(pipe); + struct usbhs_fifo *fifo; struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); struct dma_async_tx_descriptor *desc; - struct dma_chan *chan = usbhsf_dma_chan_get(fifo, pkt); + struct dma_chan *chan; struct device *dev = usbhs_priv_to_dev(priv); enum dma_transfer_direction dir; + unsigned long flags; + usbhs_lock(priv, flags); + fifo = usbhs_pipe_to_fifo(pipe); + if (!fifo) + goto xfer_work_end; + + chan = usbhsf_dma_chan_get(fifo, pkt); dir = usbhs_pipe_is_dir_in(pipe) ? DMA_DEV_TO_MEM : DMA_MEM_TO_DEV; desc = dmaengine_prep_slave_single(chan, pkt->dma + pkt->actual, pkt->trans, dir, DMA_PREP_INTERRUPT | DMA_CTRL_ACK); if (!desc) - return; + goto xfer_work_end; desc->callback = usbhsf_dma_complete; desc->callback_param = pipe; @@ -829,7 +836,7 @@ static void xfer_work(struct work_struct *work) pkt->cookie = dmaengine_submit(desc); if (pkt->cookie < 0) { dev_err(dev, "Failed to submit dma descriptor\n"); - return; + goto xfer_work_end; } dev_dbg(dev, " %s %d (%d/ %d)\n", @@ -840,6 +847,9 @@ static void xfer_work(struct work_struct *work) usbhs_pipe_set_trans_count_if_bulk(pipe, pkt->trans); dma_async_issue_pending(chan); usbhs_pipe_enable(pipe); + +xfer_work_end: + usbhs_unlock(priv, flags); } /* diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c index 046529656465..74af77a022a8 100644 --- a/drivers/usb/renesas_usbhs/mod_gadget.c +++ b/drivers/usb/renesas_usbhs/mod_gadget.c @@ -582,6 +582,9 @@ static int usbhsg_ep_enable(struct usb_ep *ep, struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); struct usbhs_pipe *pipe; int ret = -EIO; + unsigned long flags; + + usbhs_lock(priv, flags); /* * if it already have pipe, @@ -590,7 +593,8 @@ static int usbhsg_ep_enable(struct usb_ep *ep, if (uep->pipe) { usbhs_pipe_clear(uep->pipe); usbhs_pipe_sequence_data0(uep->pipe); - return 0; + ret = 0; + goto usbhsg_ep_enable_end; } pipe = usbhs_pipe_malloc(priv, @@ -618,6 +622,9 @@ static int usbhsg_ep_enable(struct usb_ep *ep, ret = 0; } +usbhsg_ep_enable_end: + usbhs_unlock(priv, flags); + return ret; } diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index f00919d579e0..2a7bf26c68e6 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -276,6 +276,7 @@ static void option_instat_callback(struct urb *urb); #define TELIT_PRODUCT_LE922_USBCFG5 0x1045 #define TELIT_PRODUCT_LE920 0x1200 #define TELIT_PRODUCT_LE910 0x1201 +#define TELIT_PRODUCT_LE910_USBCFG4 0x1206 /* ZTE PRODUCTS */ #define ZTE_VENDOR_ID 0x19d2 @@ -1210,6 +1211,8 @@ static const struct usb_device_id option_ids[] = { .driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg0 }, { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910), .driver_info = (kernel_ulong_t)&telit_le910_blacklist }, + { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910_USBCFG4), + .driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 }, { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920), .driver_info = (kernel_ulong_t)&telit_le920_blacklist }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MF622, 0xff, 0xff, 0xff) }, /* ZTE WCDMA products */ diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index 89bac470f04e..56f7e2521202 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -73,7 +73,7 @@ struct virtio_balloon { /* The array of pfns we tell the Host about. */ unsigned int num_pfns; - u32 pfns[VIRTIO_BALLOON_ARRAY_PFNS_MAX]; + __virtio32 pfns[VIRTIO_BALLOON_ARRAY_PFNS_MAX]; /* Memory statistics */ int need_stats_update; @@ -125,14 +125,16 @@ static void tell_host(struct virtio_balloon *vb, struct virtqueue *vq) wait_event(vb->acked, virtqueue_get_buf(vq, &len)); } -static void set_page_pfns(u32 pfns[], struct page *page) +static void set_page_pfns(struct virtio_balloon *vb, + __virtio32 pfns[], struct page *page) { unsigned int i; /* Set balloon pfns pointing at this page. * Note that the first pfn points at start of the page. */ for (i = 0; i < VIRTIO_BALLOON_PAGES_PER_PAGE; i++) - pfns[i] = page_to_balloon_pfn(page) + i; + pfns[i] = cpu_to_virtio32(vb->vdev, + page_to_balloon_pfn(page) + i); } static void fill_balloon(struct virtio_balloon *vb, size_t num) @@ -155,9 +157,11 @@ static void fill_balloon(struct virtio_balloon *vb, size_t num) msleep(200); break; } - set_page_pfns(vb->pfns + vb->num_pfns, page); + set_page_pfns(vb, vb->pfns + vb->num_pfns, page); vb->num_pages += VIRTIO_BALLOON_PAGES_PER_PAGE; - adjust_managed_page_count(page, -1); + if (!virtio_has_feature(vb->vdev, + VIRTIO_BALLOON_F_DEFLATE_ON_OOM)) + adjust_managed_page_count(page, -1); } /* Did we get any? */ @@ -169,11 +173,15 @@ static void fill_balloon(struct virtio_balloon *vb, size_t num) static void release_pages_balloon(struct virtio_balloon *vb) { unsigned int i; + struct page *page; /* Find pfns pointing at start of each page, get pages and free them. */ for (i = 0; i < vb->num_pfns; i += VIRTIO_BALLOON_PAGES_PER_PAGE) { - struct page *page = balloon_pfn_to_page(vb->pfns[i]); - adjust_managed_page_count(page, 1); + page = balloon_pfn_to_page(virtio32_to_cpu(vb->vdev, + vb->pfns[i])); + if (!virtio_has_feature(vb->vdev, + VIRTIO_BALLOON_F_DEFLATE_ON_OOM)) + adjust_managed_page_count(page, 1); put_page(page); /* balloon reference */ } } @@ -188,12 +196,14 @@ static unsigned leak_balloon(struct virtio_balloon *vb, size_t num) num = min(num, ARRAY_SIZE(vb->pfns)); mutex_lock(&vb->balloon_lock); + /* We can't release more pages than taken */ + num = min(num, (size_t)vb->num_pages); for (vb->num_pfns = 0; vb->num_pfns < num; vb->num_pfns += VIRTIO_BALLOON_PAGES_PER_PAGE) { page = balloon_page_dequeue(vb_dev_info); if (!page) break; - set_page_pfns(vb->pfns + vb->num_pfns, page); + set_page_pfns(vb, vb->pfns + vb->num_pfns, page); vb->num_pages -= VIRTIO_BALLOON_PAGES_PER_PAGE; } @@ -461,13 +471,13 @@ static int virtballoon_migratepage(struct balloon_dev_info *vb_dev_info, __count_vm_event(BALLOON_MIGRATE); spin_unlock_irqrestore(&vb_dev_info->pages_lock, flags); vb->num_pfns = VIRTIO_BALLOON_PAGES_PER_PAGE; - set_page_pfns(vb->pfns, newpage); + set_page_pfns(vb, vb->pfns, newpage); tell_host(vb, vb->inflate_vq); /* balloon's page migration 2nd step -- deflate "page" */ balloon_page_delete(page); vb->num_pfns = VIRTIO_BALLOON_PAGES_PER_PAGE; - set_page_pfns(vb->pfns, page); + set_page_pfns(vb, vb->pfns, page); tell_host(vb, vb->deflate_vq); mutex_unlock(&vb->balloon_lock); |