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linux-4.0.y
linux-stable/drivers/leds
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Grygorii Strashko 5db972ac21 leds / PM: fix hibernation on arm when gpio-led used with CPU led trigger 
commit 084609bf72 upstream.

Setting a dev_pm_ops suspend/resume pair of callbacks but not a set of
hibernation callbacks means those pm functions will not be
called upon hibernation - that leads to system crash on ARM during
freezing if gpio-led is used in combination with CPU led trigger.
It may happen after freeze_noirq stage (GPIO is suspended)
and before syscore_suspend stage (CPU led trigger is suspended)
- usually when disable_nonboot_cpus() is called.

Log:
  PM: noirq freeze of devices complete after 1.425 msecs
  Disabling non-boot CPUs ...
    ^ system may crash or stuck here with message (TI AM572x)

  WARNING: CPU: 0 PID: 3100 at drivers/bus/omap_l3_noc.c:148 l3_interrupt_handler+0x22c/0x370()
  44000000.ocp:L3 Custom Error: MASTER MPU TARGET L4_PER1_P3 (Idle): Data Access in Supervisor mode during Functional access

  CPU1: shutdown
    ^ or here

Fix this by using SIMPLE_DEV_PM_OPS, which appropriately
assigns the suspend and hibernation callbacks and move
led_suspend/led_resume under CONFIG_PM_SLEEP to avoid
build warnings.

Fixes: 73e1ab41a8 (leds: Convert led class driver from legacy pm ops to dev_pm_ops)
Signed-off-by: Grygorii Strashko <Grygorii.Strashko@linaro.org>
Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-21 10:10:14 -07:00
..
trigger leds: Add support for setting brightness in a synchronous way 2014-11-14 14:29:35 -08:00
dell-led.c dell-led: add mic mute led interface 2014-05-08 14:28:07 +08:00
Kconfig leds: Add LED Flash class extension to the LED subsystem 2015-01-26 14:59:08 -08:00
led-class-flash.c leds: Add LED Flash class extension to the LED subsystem 2015-01-26 14:59:08 -08:00
led-class.c leds / PM: fix hibernation on arm when gpio-led used with CPU led trigger 2015-07-21 10:10:14 -07:00
led-core.c leds: Add support for setting brightness in a synchronous way 2014-11-14 14:29:35 -08:00
led-triggers.c leds: implement sysfs interface locking mechanism 2014-11-14 14:29:35 -08:00
leds-88pm860x.c leds: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
leds-adp5520.c leds: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
leds-asic3.c leds: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
leds-bd2802.c leds: Remove duplicated OOM message for individual driver 2014-05-08 14:28:08 +08:00
leds-blinkm.c leds: blinkm: remove unnecessary spaces 2014-02-27 10:19:57 -08:00
leds-clevo-mail.c leds: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
leds-cobalt-qube.c leds: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
leds-cobalt-raq.c leds: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
leds-da903x.c leds: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
leds-da9052.c leds: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
leds-dac124s085.c leds: dac124s085: Remove redundant spi_set_drvdata 2013-10-22 10:57:34 -07:00
leds-fsg.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-gpio-register.c led: gpio: Fix possible ZERO_SIZE_PTR pointer dereferencing error. 2014-09-29 10:21:01 -07:00
leds-gpio.c leds: leds-gpio: Pass on error codes unmodified 2015-02-02 14:36:10 -08:00
leds-hp6xx.c leds: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
leds-ipaq-micro.c leds: ipaq-micro: fix sparse non static symbol warning 2014-07-29 10:57:20 -07:00
leds-lm355x.c leds: lm355x: fix attribute-creation race 2014-06-25 15:10:54 -07:00
leds-lm3530.c leds: lm3550: fix attribute-creation race 2014-06-25 15:00:55 -07:00
leds-lm3533.c leds: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
leds-lm3642.c leds: lm3642: fix attribute-creation race 2014-06-25 15:13:08 -07:00
leds-locomo.c drivers/leds: Add module.h to files using it implicitly 2011-10-31 19:31:49 -04:00
leds-lp55xx-common.c leds: lp55xx-common: fix attribute-creation race 2014-06-27 13:44:05 -07:00
leds-lp55xx-common.h leds: lp55xx: add common macros for device attributes 2013-08-26 17:22:12 -07:00
leds-lp3944.c leds: lp3944: fix sparse warning 2014-09-11 16:55:27 -07:00
leds-lp5521.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-lp5523.c leds: lp55xx: add DT bindings for LP55231 2014-05-08 14:28:08 +08:00
leds-lp5562.c leds: lp5562: remove unnecessary parentheses 2014-02-27 10:17:15 -08:00
leds-lp8501.c lp5523, lp8501: comment improvements 2014-01-10 11:44:44 +01:00
leds-lp8788.c leds: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
leds-lp8860.c leds: lp8860: Introduce TI lp8860 4 channel LED driver 2014-11-19 10:33:06 -08:00
leds-lt3593.c leds: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
leds-max8997.c leds: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
leds-mc13783.c leds: leds-mc13783: Use of_get_child_by_name() instead of refcount hack 2015-01-14 10:40:20 -08:00
leds-menf21bmc.c leds: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
leds-net48xx.c leds: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
leds-netxbig.c leds: netxbig: fix oops at probe time 2015-01-13 13:49:01 -08:00
leds-ns2.c leds: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
leds-ot200.c leds: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
leds-pca955x.c leds: use dev_get_platdata() 2013-08-26 17:22:11 -07:00
leds-pca963x.c leds:pca963x: Always initialize MODE2 register 2014-07-03 11:55:56 -07:00
leds-pca9532.c driver:gpio remove all usage of gpio_remove retval in driver 2014-09-18 11:03:10 -07:00
leds-pwm.c leds: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
leds-rb532.c leds: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
leds-regulator.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds 2014-12-15 18:28:25 -08:00
leds-s3c24xx.c leds: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
leds-ss4200.c leds: ss4200: fix attribute-creation race 2014-06-25 15:34:24 -07:00
leds-sunfire.c leds: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
leds-syscon.c leds: syscon: handle multiple syscon instances 2014-11-14 14:29:35 -08:00
leds-tca6507.c driver:gpio remove all usage of gpio_remove retval in driver 2014-09-18 11:03:10 -07:00
leds-versatile.c ARM/leds: move ARM Versatile LED driver to leds subsystem 2014-03-28 10:54:15 +01:00
leds-wm831x-status.c leds: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
leds-wm8350.c leds: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
leds-wrap.c leds: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
leds.h leds: Don't allow brightness values greater than max_brightness 2015-01-14 10:40:19 -08:00
Makefile leds: Add LED Flash class extension to the LED subsystem 2015-01-26 14:59:08 -08:00