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2011-12-09w1: add fast search for single slave busEvgeniy Polyakov
This enables a much more efficient way of device searching. It uses the 1-wire read-rom operation which allows the direct reading of the slave address. BUT this works only with exactly one slave on the bus. Signed-off-by: Hubert Feurstein <h.feurstein@gmail.com> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> index c374978..9761950 100644 Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-18USB: convert some miscellanies drivers to use module_usb_driver()Greg Kroah-Hartman
This converts the remaining USB drivers in the kernel to use the module_usb_driver() macro which makes the code smaller and a bit simpler. Added bonus is that it removes some unneeded kernel log messages about drivers loading and/or unloading. Cc: Guenter Roeck <guenter.roeck@ericsson.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Till Harbaum <till@harbaum.org> Cc: Karsten Keil <isdn@linux-pingi.de> Cc: Chris Ball <cjb@laptop.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Lauro Ramos Venancio <lauro.venancio@openbossa.org> Cc: Aloisio Almeida Jr <aloisio.almeida@openbossa.org> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Steve Glendinning <steve.glendinning@smsc.com> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Evgeniy Polyakov <zbr@ioremap.net> Cc: Wim Van Sebroeck <wim@iguana.be> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jesper Juhl <jj@chaosbits.net> Cc: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Cc: Jamie Iles <jamie@jamieiles.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-17W1: w1_therm: release the bus during conversion on externally powered devicesMaciej Szmigiero
w1_therm devices can either be bus powered or externally powered. When device is bus powered during temperature conversion the bus have to be left high to provide necessary power. Some masters also allow strong power-up to be enabled in this case. Naturally, no communication over bus can occur during that time. However, if device has external power then there is no such restriction, and host can talk to other devices during temperature conversion. There is command which allows us to check how device is powered, this patch uses it to release the bus on externally w1_therm powered devices during temperature conversion. Also, this changes uninterruptible sleeps there into interruptible ones to avoid long uninterruptible sleep if w1 subsystem happens to grab bus for scan during w1_therm_read(). Signed-off-by: Maciej Szmigiero <mhej@o2.pl> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-06Merge branch 'modsplit-Oct31_2011' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux * 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits) Revert "tracing: Include module.h in define_trace.h" irq: don't put module.h into irq.h for tracking irqgen modules. bluetooth: macroize two small inlines to avoid module.h ip_vs.h: fix implicit use of module_get/module_put from module.h nf_conntrack.h: fix up fallout from implicit moduleparam.h presence include: replace linux/module.h with "struct module" wherever possible include: convert various register fcns to macros to avoid include chaining crypto.h: remove unused crypto_tfm_alg_modname() inline uwb.h: fix implicit use of asm/page.h for PAGE_SIZE pm_runtime.h: explicitly requires notifier.h linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h miscdevice.h: fix up implicit use of lists and types stop_machine.h: fix implicit use of smp.h for smp_processor_id of: fix implicit use of errno.h in include/linux/of.h of_platform.h: delete needless include <linux/module.h> acpi: remove module.h include from platform/aclinux.h miscdevice.h: delete unnecessary inclusion of module.h device_cgroup.h: delete needless include <linux/module.h> net: sch_generic remove redundant use of <linux/module.h> net: inet_timewait_sock doesnt need <linux/module.h> ... Fix up trivial conflicts (other header files, and removal of the ab3550 mfd driver) in - drivers/media/dvb/frontends/dibx000_common.c - drivers/media/video/{mt9m111.c,ov6650.c} - drivers/mfd/ab3550-core.c - include/linux/dmaengine.h
2011-11-02w1: disable irqs in critical sectionJan Weitzel
Interrupting w1_delay() in w1_read_bit() results in missing the low level on the w1 line and receiving "1" instead of "0". Add local_irq_save()/local_irq_restore() around the critical section Signed-off-by: Jan Weitzel <j.weitzel@phytec.de> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-11-02drivers/w1/w1_int.c: multiple masters used same init_nameFlorian Faber
When using multiple masters, w1_int.c would use the .init_name from w1.c for all entities, which will fail when creating a corresponding sysfs entry. This patch uses the unique name previously generated. WARNING: at fs/sysfs/dir.c:451 sysfs_add_one+0x48/0x64() sysfs: cannot create duplicate filename '/devices/w1 bus master' Modules linked in: Call trace: [<9001a604>] warn_slowpath_common+0x34/0x44 [<9001a64c>] warn_slowpath_fmt+0x14/0x18 [<90078020>] sysfs_add_one+0x48/0x64 [<900784ec>] create_dir+0x40/0x68 [<9007857a>] sysfs_create_dir+0x66/0x78 [<900c1a8a>] kobject_add_internal+0x6e/0x104 [<900c1bc0>] kobject_add_varg+0x20/0x2c [<900c1c1c>] kobject_add+0x30/0x3c [<900dbd66>] device_add+0x6a/0x378 [<900dbb4a>] device_initialize+0x12/0x48 [<900dc080>] device_register+0xc/0x10 [<900f99be>] w1_add_master_device+0x162/0x274 [<90008e7a>] w1_gpio_probe+0x66/0xb4 [<9000030c>] kernel_init+0x0/0xe8 [<900dde54>] platform_drv_probe+0xc/0xe [<9000030c>] kernel_init+0x0/0xe8 [<900dd4f8>] driver_probe_device+0x6c/0xdc [<900dd5fc>] __driver_attach+0x34/0x48 [<900dcce8>] bus_for_each_dev+0x2c/0x48 [<900dd5c8>] __driver_attach+0x0/0x48 [<900dd38c>] driver_attach+0x10/0x14 [<900dd16a>] bus_add_driver+0x6a/0x18c [<900dd768>] driver_register+0x60/0xb8 [<90011594>] __initcall_w1_therm_init6+0x0/0x4 [<90008e00>] w1_gpio_init+0x0/0x14 [<9000030c>] kernel_init+0x0/0xe8 [<900ddf48>] platform_driver_register+0x30/0x38 [<90011594>] __initcall_w1_therm_init6+0x0/0x4 [<90008e00>] w1_gpio_init+0x0/0x14 [<9000030c>] kernel_init+0x0/0xe8 [<900ddf5e>] platform_driver_probe+0xe/0x3c [<90008e0c>] w1_gpio_init+0xc/0x14 [<90011594>] __initcall_w1_therm_init6+0x0/0x4 [<90008e00>] w1_gpio_init+0x0/0x14 [<900126d4>] do_one_initcall+0x34/0x130 [<90000372>] kernel_init+0x66/0xe8 [<90011594>] __initcall_w1_therm_init6+0x0/0x4 [<9001ca3e>] do_exit+0x0/0x3a6 [<9000030c>] kernel_init+0x0/0xe8 [<9001ca3e>] do_exit+0x0/0x3a6 ---[ end trace 5a9233884fead918 ]--- kobject_add_internal failed for w1 bus master with -EEXIST, don't try to register things with the same name in the same directory. Signed-off-by: Florian Faber <faber@faberman.de> Cc: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-11-02drivers/power/ds2780_battery.c: add a nolock function to w1 interfaceClifton Barnes
Adds a nolock function to the w1 interface to avoid locking the mutex if needed. Signed-off-by: Clifton Barnes <cabarnes@indesign-llc.com> Cc: Evgeniy Polyakov <zbr@ioremap.net> Cc: <stable@kernel.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-11-02w1: ds2760 and ds2780, use ida for id and ida_simple_get() to get itJonathan Cameron
Straightforward. As an aside, the ida_init calls are not needed as far as I can see needed. (DEFINE_IDA does the same already). Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Cc: Evgeniy Polyakov <zbr@ioremap.net> Acked-by: Clifton Barnes <cabarnes@indesign-llc.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-10-31drivers/w1: Add moduleparam.h to drivers/w1/w1_int.cPaul Gortmaker
It doesn't need the full module.h but it was getting moduleparam.h from the fact that module.h was everywhere. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31drivers/w1: Add export.h for EXPORT_SYMBOL/THIS_MODULEPaul Gortmaker
Give these files export.h so that they can reliably get the EXPORT_SYMBOL and THIS_MODULE macros in the future, once module.h isn't implicitly everywhere. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-08-25MAINTAINERS: Evgeniy has movedEvgeniy Polyakov
Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25w1: fix for loop in w1_f29_remove_slave()Dan Carpenter
The for loop was looking for i <= 0 instead of i >= 0 so this function never did anything. Also we started with i = NB_SYSFS_BIN_FILES instead of "NB_SYSFS_BIN_FILES - 1" which is an off by one bug. Reported-by: Bojan Prtvar <prtvar.b@gmail.com> Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Jean-Franois Dagenais <dagenaisj@sonatest.com> Cc: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-26atomic: use <linux/atomic.h>Arun Sharma
This allows us to move duplicated code in <asm/atomic.h> (atomic_inc_not_zero() for now) to <linux/atomic.h> Signed-off-by: Arun Sharma <asharma@fb.com> Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-26drivers/w1/slaves/w1_therm.c: add support for DS28EA00Christian Glindkamp
Signed-off-by: Christian Glindkamp <christian.glindkamp@taskit.de> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-08w1: ds1wm: add a reset recovery parameterJean-François Dagenais
This fixes a regression in 3.0 reported by Paul Parsons regarding the removal of the msleep(1) in the ds1wm_reset() function: : The linux-3.0-rc4 DS1WM 1-wire driver is logging "bus error, retrying" : error messages on an HP iPAQ hx4700 PDA (XScale-PXA270): : : <snip> : Driver for 1-wire Dallas network protocol. : DS1WM w1 busmaster driver - (c) 2004 Szabolcs Gyurko : 1-Wire driver for the DS2760 battery monitor chip - (c) 2004-2005, Szabolcs Gyurko : ds1wm ds1wm: pass: 1 bus error, retrying : ds1wm ds1wm: pass: 2 bus error, retrying : ds1wm ds1wm: pass: 3 bus error, retrying : ds1wm ds1wm: pass: 4 bus error, retrying : ds1wm ds1wm: pass: 5 bus error, retrying : ... : : The visible result is that the battery charging LED is erratic; sometimes : it works, mostly it doesn't. : : The linux-2.6.39 DS1WM 1-wire driver worked OK. I haven't tried 3.0-rc1, : 3.0-rc2, or 3.0-rc3. This sleep should not be required on normal circuitry provided the pull-ups on the bus are correctly adapted to the slaves. Unfortunately, this is not always the case. The sleep is restored but as a parameter to the probe function in the pdata. [akpm@linux-foundation.org: coding-style fixes] Reported-by: Paul Parsons <lost.distance@yahoo.com> Tested-by: Paul Parsons <lost.distance@yahoo.com> Signed-off-by: Jean-François Dagenais <dagenaisj@sonatest.com> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-15w1: W1_MASTER_DS1WM should depend on GENERIC_HARDIRQSGeert Uytterhoeven
On m68k (which doesn't support generic hardirqs yet): drivers/w1/masters/ds1wm.c: In function `ds1wm_probe': drivers/w1/masters/ds1wm.c: error: implicit declaration of function `irq_set_irq_type' Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Cc: Jean-Franois Dagenais <dagenaisj@sonatest.com> Cc: Matt Reimer <mreimer@vpop.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-26w1: add Maxim/Dallas DS2780 Stand-Alone Fuel Gauge IC supportClifton Barnes
Add support for the Maxim/Dallas DS2780 Stand-Alone Fuel Gauge IC. It was suggested to combine this functionality with the current ds2782 driver. Unfortunately, I'm unable to commit the time to refactoring this driver to that extent and I don't have a platform with the ds2782 part to validate that there are no regression issues by adding this functionality. [akpm@linux-foundation.org: use min_t()] Signed-off-by: Clifton Barnes <cabarnes@indesign-llc.com> Tested-by: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Cc: Ryan Mallon <ryan@bluewatersys.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-26w1: have netlink search update kernel listDavid Fries
Reorganize so the netlink connector one wire search command will update the kernel list of detected slave devices. Otherwise, a newly detected device is unusable because unless it's in the kernel list of known devices any commands will result in ENODEV status. Signed-off-by: David Fries <David@Fries.net> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-26w1: complete the 1-wire (w1) ds1wm driver search algorithmJean-François Dagenais
This adds multi-slave support of the w1 bus for the ds1wm Synthesizable 1-Wire Bus Master. Also many fixes and tweaks based on the rev3 of the datasheet http://datasheets.maxim-ic.com/en/ds/DS1WM.pdf Signed-off-by: Jean-François Dagenais <dagenaisj@sonatest.com> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Cc: Szabolcs Gyurko <szabolcs.gyurko@tlt.hu> Cc: Matt Reimer <mreimer@vpop.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-26w1: add 1-wire (w1) DS2408 8-Channel Addressable Switch supportJean-François Dagenais
This DS2408 w1 slave driver is not complete for all the features of the chip, but its sufficient if you use it as a simple IO expander. [randy.dunlap@oracle.com: fix w1_ds2408.c printk formats] Signed-off-by: Jean-François Dagenais <dagenaisj@sonatest.com> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Cc: Szabolcs Gyurko <szabolcs.gyurko@tlt.hu> Cc: Matt Reimer <mreimer@vpop.net> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-26w1: add 1-wire (w1) reset and resume command API supportJean-François Dagenais
The first patch adds generic functionnality to w1_io for Resume Command [A5h] lots of slaves support. I found it useful for multi-commands/reset workflows with the same slave on a multi-slave bus. This DS2408 w1 slave driver is not complete for all the features of the chip, but its sufficient if you use it as a simple IO expander. Enjoy! The ds1wm had Kconfig dependencies towards ARM && HAVE_CLK. I took them out since I was using the ds1wm on an x86_64 platform (ds1wm in a FPGA through pcie) and found them irrelevant. The clock freq/divisors at the top of ds1wm.c did not have the MSB set to 1. This bit is CLK_EN which turns the whole prescaler and dividers on. The driver never mentionned this bit either, so I just included this bit right in the table entries. I also took the liberty to add a couple of entries to the table. The spec doesn't explicitely mentions these possibilities but the description and examination of the core shows the prescalers & dividers can be used for more than the table explicitely shows. The table I enlarged still doesn't cover all possibilities, but it's a good start. I also made a few tweaks to a couple of the read and write algorithms which made sense while I had my head very deep in the ds1wm documentation. We stressed it a lot with 10+ slaves on the bus, many ds2408, ds2431 and ds2433 at the same time doing extensive interaction. It proved quite stable in our production environment. This patch: Add generic functionnality to w1_io for Resume Command [A5h] lots of slaves support. Signed-off-by: Jean-François Dagenais <dagenaisj@sonatest.com> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Cc: Szabolcs Gyurko <szabolcs.gyurko@tlt.hu> Cc: Matt Reimer <mreimer@vpop.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-26w1: Use device platform_data to retrieve ds1wm platform bitsSamuel Ortiz
With the addition of the platform device mfd_cell pointer, we can now cleanly pass the sub device drivers platform data pointers through the regular device platform_data one, and get rid of mfd_get_data(). Cc: Matt Reimer <mreimer@vpop.net> Cc: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-03-31Fix common misspellingsLucas De Marchi
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-29drivers: Final irq namespace conversionThomas Gleixner
Scripted with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-23w1: Silence ds1wm warnings related to mfd_get_cell changesAndres Salomon
mfd_get_cell returns a const, so change the ds1wm client to store a const mfd cell. This silences type mismatch warnings. Since we're guaranteed to have the mfd_cell, we can also simplify the code a bit to get rid of a temporary variable and NULL check. Signed-off-by: Andres Salomon <dilinger@queued.net> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-03-23w1: Use mfd_data instead of driver_data for dsw1wm.cAndres Salomon
Use mfd_data for passing information from mfd drivers to mfd clients. The mfd_cell's driver_data field is being phased out. Clients that were using driver_data now access .mfd_data via mfd_get_data(). This changes ds1wm only; mfd drivers with other cells are not modified, with the exception of led_cell. The led_cell.driver_data line is dropped from htc-pasic3.c in this patch as well. It's not used in mainline (there's no leds-pasic3 platform driver), so it should be safe to take care of that here. Signed-off-by: Andres Salomon <dilinger@queued.net> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-03-23mfd: mfd_cell is now implicitly available to asic3 driversAndres Salomon
No need to explicitly set the cell's platform_data/data_size. Modify clients to use mfd_get_cell helper function instead of accessing platform_data directly. Signed-off-by: Andres Salomon <dilinger@queued.net> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-02-16Merge branches 'devel-cleanup', 'devel-board', 'devel-early-init' and ↵Tony Lindgren
'devel-ti816x' into omap-for-linus
2011-02-11drivers/w1/masters/omap_hdq.c: add missing clk_putJulia Lawall
This code makes two calls to clk_get, then test both return values and fails if either failed. The problem is that in the first inner if, where the first call to clk_get has failed, it don't know if the second call has failed as well. So it don't know whether clk_get should be called on the result of the second call. Of course, it would be possible to test that value again. A simpler solution is just to test the result of calling clk_get directly after each call. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ position p1,p2; expression e; statement S; @@ e = clk_get@p1(...) ... if@p2 (IS_ERR(e)) S @@ expression e; statement S; identifier l; position r.p1, p2 != r.p2; @@ *e = clk_get@p1(...) ... when != clk_put(e) *if@p2 (...) { ... when != clk_put(e) * return ...; }// </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Amit Kucheria <amit.kucheria@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-27omap: Start using CONFIG_SOC_OMAPTony Lindgren
We want to have just CONFIG_ARCH_OMAP2, 3 and 4. The rest are nowadays just subcategories of these. Search and replace the following: ARCH_OMAP2420 SOC_OMAP2420 ARCH_OMAP2430 SOC_OMAP2430 ARCH_OMAP3430 SOC_OMAP3430 No functional changes. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Thomas Weber <weber@corscience.de> Acked-by: Sourav Poddar <sourav.poddar@ti.com>
2011-01-13w1: DS2423 counter driver and documentationMika Laitio
This is a 1-wire/w1 DS2423 slave driver for reading the values from all 4 counters available DS2423 devices by using standard w1_slave file. In ds2423 the counters are tied to ram pages 12-15 in and each of those ram-pages. Each of these counter values (and asoociated ram page values) are represented as a own line in w1_slave file. Driver has been tested on mips and x86. usage example: cat /sys/bus/w1/devices/1d-00000009b964/w1_slave 00 02 00 00 00 00 00 00 00 6d 38 00 ff ff 00 00 fe ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff crc=YES c=2 00 02 00 00 00 00 00 00 00 e0 1f 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff crc=YES c=2 00 5a 0e 5f 18 00 00 00 00 0b 28 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff 00 00 ff ff crc=YES c=408882778 00 05 00 00 00 00 00 00 00 8d 39 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff crc=YES c=5 Patch includes also the documentation. [randy.dunlap@oracle.com: fix ds2423 build, needs to select CRC16] Signed-off-by: Mika Laitio <lamikr@pilppa.org> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-27w1: don't allow arbitrary users to remove w1 devicesBrian Swetland
The search/pullup/add/remove device attributes were 0666 which would allow arbitrary users to affect the 1 wire bus. Change to 0664 to prevent that. I found this patch in the Android tree, apparently this has never been sent upstream so doing it now. Signed-off-by: Brian Swetland <swetland@google.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-21sysfs: add struct file* to bin_attr callbacksChris Wright
This allows bin_attr->read,write,mmap callbacks to check file specific data (such as inode owner) as part of any privilege validation. Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-24w1: fix omap 1-wire driver compilationAmit Kucheria
Fixes the following error: drivers/w1/masters/omap_hdq.c: In function 'hdq_wait_for_flag': drivers/w1/masters/omap_hdq.c:137: error: implicit declaration of function 'schedule_timeout_uninterruptible' drivers/w1/masters/omap_hdq.c: In function 'hdq_write_byte': drivers/w1/masters/omap_hdq.c:177: error: 'TASK_UNINTERRUPTIBLE' undeclared (first use in this function) drivers/w1/masters/omap_hdq.c:177: error: (Each undeclared identifier is reported only once drivers/w1/masters/omap_hdq.c:177: error: for each function it appears in.) drivers/w1/masters/omap_hdq.c:177: error: implicit declaration of function 'schedule_timeout' drivers/w1/masters/omap_hdq.c: In function 'hdq_isr': drivers/w1/masters/omap_hdq.c:221: error: 'TASK_NORMAL' undeclared (first use in this function) drivers/w1/masters/omap_hdq.c: In function 'omap_hdq_break': drivers/w1/masters/omap_hdq.c:316: error: 'TASK_UNINTERRUPTIBLE' undeclared (first use in this function) Signed-off-by: Amit Kucheria <amit.kucheria@canonical.com> Acked-by: Tony Lindgren <tony@atomide.com> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-04-24w1: w1 temp: fix negative termperature calculationIan Dall
Fix regression caused by commit 507e2fbaaacb6f164b4125b87c5002f95143174b ("w1: w1 temp calculation overflow fix") whereby negative temperatures for the DS18B20 are not converted properly. When the temperature exceeds 32767 milli-degrees the temperature overflows to -32768 millidegrees. These are both well within the -55 - +125 degree range for the sensor. Addresses https://bugzilla.kernel.org/show_bug.cgi?id=12646 Signed-of-by: Ian Dall <ian@beware.dropbear.id.au> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Tested-by: Karsten Elfenbein <kelfe@gmx.de> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-30include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo
implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-12Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (56 commits) doc: fix typo in comment explaining rb_tree usage Remove fs/ntfs/ChangeLog doc: fix console doc typo doc: cpuset: Update the cpuset flag file Fix of spelling in arch/sparc/kernel/leon_kernel.c no longer needed Remove drivers/parport/ChangeLog Remove drivers/char/ChangeLog doc: typo - Table 1-2 should refer to "status", not "statm" tree-wide: fix typos "ass?o[sc]iac?te" -> "associate" in comments No need to patch AMD-provided drivers/gpu/drm/radeon/atombios.h devres/irq: Fix devm_irq_match comment Remove reference to kthread_create_on_cpu tree-wide: Assorted spelling fixes tree-wide: fix 'lenght' typo in comments and code drm/kms: fix spelling in error message doc: capitalization and other minor fixes in pnp doc devres: typo fix s/dev/devm/ Remove redundant trailing semicolons from macros fix typo "definetly" -> "definitely" in comment tree-wide: s/widht/width/g typo in comments ... Fix trivial conflict in Documentation/laptops/00-INDEX
2010-03-12w1: mxc_w1: move probe() and remove() to the dev* text areaAlberto Panizzo
This fixes the section mismatch warning for mxc_w1_probe() Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Cc: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-12w1: fix test in ds2482_wait_1wire_idle()Roel Kluin
With `while (++retries < DS2482_WAIT_IDLE_TIMEOUT)' retries reaches DS2482_WAIT_IDLE_TIMEOUT after the loop Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-08Merge branch 'for-next' into for-linusJiri Kosina
Conflicts: Documentation/filesystems/proc.txt arch/arm/mach-u300/include/mach/debug-macro.S drivers/net/qlge/qlge_ethtool.c drivers/net/qlge/qlge_main.c drivers/net/typhoon.c
2010-03-07w1: move omap_hdq's probe function to .devinit.textUwe Kleine-König
A pointer to omap_hdq_probe is passed to the core via platform_driver_register and so the function must not disappear when the .init sections are discarded. Otherwise (if also having HOTPLUG=y) unbinding and binding a device to the driver via sysfs will result in an oops as does a device being registered late. An alternative to this patch is using platform_driver_probe instead of platform_driver_register plus removing the pointer to the probe function from the struct platform_driver. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Stanley.Miao <stanley.miao@windriver.com> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Madhusudhan Chikkature <madhu.cr@ti.com> Cc: Felipe Balbi <felipe.balbi@nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-02-15omap3: Replace ARCH_OMAP34XX with ARCH_OMAP3Tony Lindgren
Replace ARCH_OMAP34XX with ARCH_OMAP3 Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-02-05w1: add __init/__exit macros to w1.cPeter Huewe
Trivial patch which adds the __init/__exit macros to the module_init/ module_exit functions of drivers/w1/w1.c Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-10-04ds2482: Discard obsolete detect methodJean Delvare
There is no point in implementing a detect callback for the DS2482, as this device can't be detected. It was there solely to handle "force" module parameters to instantiate devices, but now we have a better sysfs interface that can do the same. So we can get rid of the ugly module parameters and the detect callback. This shrinks the binary module size by 21%. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Ben Gardner <gardner.ben@gmail.com>
2009-10-02connector: Provide the sender's credentials to the callbackPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Acked-by: Lars Ellenberg <lars.ellenberg@linbit.com> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-12Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: arch/microblaze/include/asm/socket.h
2009-08-07drivers/w1/masters/omap_hdq.c: fix missing mutex unlockStoyan Gaydarov
This was found using a semantic patch, more info can be found at: http://www.emn.fr/x-info/coccinelle/ Signed-off-by: Stoyan Gaydarov <sgayda2@uiuc.edu> Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-17connector: make callback argument type explicitMike Frysinger
The connector documentation states that the argument to the callback function is always a pointer to a struct cn_msg, but rather than encode it in the API itself, it uses a void pointer everywhere. This doesn't make much sense to encode the pointer in documentation as it prevents proper C type checking from occurring and can easily allow people to use the wrong pointer type. So convert the argument type to an explicit struct cn_msg pointer. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-24Merge git://git.infradead.org/battery-2.6Linus Torvalds
* git://git.infradead.org/battery-2.6: da9030_battery: Fix race between event handler and monitor Add MAX17040 Fuel Gauge driver w1: ds2760_battery: add support for sleep mode feature w1: ds2760: add support for EEPROM read and write ds2760_battery: cleanups in ds2760_battery_probe()
2009-06-18w1-gpio: add external pull-up enable callbackDaniel Mack
On embedded devices, sleep mode conditions can be tricky to handle, Especially when processors tend to pull-down the w1 bus during sleep. Bus slaves (such as the ds2760) may interpret this as a reason for power-down conditions and entirely switch off the device. This patch adds a callback function pointer to let users switch on and off the external pull-up resistor. This lets the outside world know whether the processor is currently actively driving the bus or not. When this callback is not provided, the code behaviour won't change. Signed-off-by: Daniel Mack <daniel@caiaq.de> Acked-by: Ville Syrjala <syrjala@sci.fi> Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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