diff options
| author | Gary S. Robertson <gary.robertson@linaro.org> | 2015-10-21 01:30:35 -0500 |
|---|---|---|
| committer | Gary S. Robertson <gary.robertson@linaro.org> | 2015-10-21 01:30:35 -0500 |
| commit | 701f68f192e35dfc22c6a456c8a60fb4e9ff7d02 (patch) | |
| tree | 609e21a8d27831ce88bb5ba717c5a6614606c7f5 /drivers/phy/phy-twl4030-usb.c | |
| parent | b00df57e50e087151f4ca976ca2796ea105f68c1 (diff) | |
| parent | f249a14dd1b6b341e7b5e29b64c0edae6e13b7f5 (diff) | |
Merge tag 'lsk-v4.1-15.09' of http://git.linaro.org/kernel/linux-linaro-stable into linux-linaro-lng-v4.1linux-lng-4.1.7-2015.10
LSK 15.09 v4.1
Signed-off-by: Gary S. Robertson <gary.robertson@linaro.org>
Conflicts:
linaro/configs/distribution.conf
Diffstat (limited to 'drivers/phy/phy-twl4030-usb.c')
| -rw-r--r-- | drivers/phy/phy-twl4030-usb.c | 29 |
1 files changed, 20 insertions, 9 deletions
diff --git a/drivers/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c index 8882afbef688..6285f46f3ddb 100644 --- a/drivers/phy/phy-twl4030-usb.c +++ b/drivers/phy/phy-twl4030-usb.c @@ -144,6 +144,16 @@ #define PMBR1 0x0D #define GPIO_USB_4PIN_ULPI_2430C (3 << 0) +/* + * If VBUS is valid or ID is ground, then we know a + * cable is present and we need to be runtime-enabled + */ +static inline bool cable_present(enum omap_musb_vbus_id_status stat) +{ + return stat == OMAP_MUSB_VBUS_VALID || + stat == OMAP_MUSB_ID_GROUND; +} + struct twl4030_usb { struct usb_phy phy; struct device *dev; @@ -536,8 +546,10 @@ static irqreturn_t twl4030_usb_irq(int irq, void *_twl) mutex_lock(&twl->lock); if (status >= 0 && status != twl->linkstat) { + status_changed = + cable_present(twl->linkstat) != + cable_present(status); twl->linkstat = status; - status_changed = true; } mutex_unlock(&twl->lock); @@ -553,15 +565,11 @@ static irqreturn_t twl4030_usb_irq(int irq, void *_twl) * USB_LINK_VBUS state. musb_hdrc won't care until it * starts to handle softconnect right. */ - if ((status == OMAP_MUSB_VBUS_VALID) || - (status == OMAP_MUSB_ID_GROUND)) { - if (pm_runtime_suspended(twl->dev)) - pm_runtime_get_sync(twl->dev); + if (cable_present(status)) { + pm_runtime_get_sync(twl->dev); } else { - if (pm_runtime_active(twl->dev)) { - pm_runtime_mark_last_busy(twl->dev); - pm_runtime_put_autosuspend(twl->dev); - } + pm_runtime_mark_last_busy(twl->dev); + pm_runtime_put_autosuspend(twl->dev); } omap_musb_mailbox(status); } @@ -766,6 +774,9 @@ static int twl4030_usb_remove(struct platform_device *pdev) /* disable complete OTG block */ twl4030_usb_clear_bits(twl, POWER_CTRL, POWER_CTRL_OTG_ENAB); + + if (cable_present(twl->linkstat)) + pm_runtime_put_noidle(twl->dev); pm_runtime_mark_last_busy(twl->dev); pm_runtime_put(twl->dev); |