Stefan Agner
ad06fdeeef
pwm: fsl-ftm: Use flat regmap cache ...
Use flat regmap cache to avoid lockdep warning at probe:
[ 0.697285] WARNING: CPU: 0 PID: 1 at kernel/locking/lockdep.c:2755 lockdep_trace_alloc+0x15c/0x160()
[ 0.697449] DEBUG_LOCKS_WARN_ON(irqs_disabled_flags(flags))
The RB-tree regmap cache needs to allocate new space on first writes.
However, allocations in an atomic context (e.g. when a spinlock is held)
are not allowed. The function regmap_write calls map->lock, which
acquires a spinlock in the fast_io case. Since the pwm-fsl-ftm driver
uses MMIO, the regmap bus of type regmap_mmio is being used which has
fast_io set to true.
The MMIO space of the pwm-fsl-ftm driver is reasonable condense, hence
using the much faster flat regmap cache is anyway the better choice.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2016-04-14 16:54:00 +02:00
pwm: Mark all devices as "might sleep"
2016-01-21 15:04:59 +01:00
pwm: rcar: Depend on ARCH_RENESAS instead of ARCH_SHMOBILE
2016-03-23 17:11:44 +01:00
pwm: Add PWM driver for OMAP using dual-mode timers
2015-12-16 17:25:37 +01:00
pwm: drop owner assignment from platform_drivers
2014-10-20 16:21:28 +02:00
pwm: atmel-hlcdc: add sama5d2 SoC support.
2015-10-06 16:07:28 +02:00
misc: atmel_tclib: get and use slow clock
2015-10-06 12:33:14 +02:00
pwm: Make use of pwm_get_xxx() helpers where appropriate
2015-07-20 09:53:22 +02:00
pwm: kona: Modify settings application sequence
2015-08-17 16:19:41 +02:00
pwm: bcm2835: Fix email address specification
2015-12-16 16:45:32 +01:00
pwm: Add support for the Berlin PWM controller
2015-10-06 09:40:44 +02:00
pwm: drop owner assignment from platform_drivers
2014-10-20 16:21:28 +02:00
pwm: brcmstb: Fix check of devm_ioremap_resource() return code
2016-03-23 17:11:45 +01:00
pwm: drop owner assignment from platform_drivers
2014-10-20 16:21:28 +02:00
pwm: crc: Add Crystalcove (CRC) PWM driver
2015-07-21 09:22:23 +02:00
pwm: Add the pwm_is_enabled() helper
2015-07-20 09:46:06 +02:00
pwm: fsl-ftm: Use flat regmap cache
2016-04-14 16:54:00 +02:00
pwm: img: Test clock rate to avoid division by 0
2016-03-23 17:11:02 +01:00
pwm: Make use of pwm_get_xxx() helpers where appropriate
2015-07-20 09:53:22 +02:00
pwm: drop owner assignment from platform_drivers
2014-10-20 16:21:28 +02:00
pwm: drop owner assignment from platform_drivers
2014-10-20 16:21:28 +02:00
pwm: lpc18xx-sct: Test clock rate to avoid division by 0
2016-03-23 17:11:29 +01:00
pwm: lpc32xx: return ERANGE, if requested period is not supported
2015-12-16 17:01:06 +01:00
pwm: lpss: Add support for runtime PM
2015-11-06 14:34:13 +01:00
pwm: lpss: Add support for runtime PM
2015-11-06 14:34:13 +01:00
pwm: lpss: Rework the sequence of programming PWM_SW_UPDATE
2015-12-16 16:52:09 +01:00
pwm: lpss: Update PWM setting for Broxton
2015-12-16 16:45:38 +01:00
pwm: Add MediaTek display PWM driver support
2015-10-06 16:07:30 +02:00
pwm: Add the pwm_is_enabled() helper
2015-07-20 09:46:06 +02:00
pwm: omap-dmtimer: Add debug message for effective period and duty cycle
2016-03-23 17:11:48 +01:00
pwm-pca9685: enable ACPI device found on Galileo Gen2
2015-11-06 14:14:19 +01:00
pwm: drop owner assignment from platform_drivers
2014-10-20 16:21:28 +02:00
pwm: drop owner assignment from platform_drivers
2014-10-20 16:21:28 +02:00
pwm: rcar: Improve accuracy of frequency division setting
2015-12-16 17:02:14 +01:00
pwm: Add the pwm_is_enabled() helper
2015-07-20 09:46:06 +02:00
pwm: Make use of pwm_get_xxx() helpers where appropriate
2015-07-20 09:53:22 +02:00
pwm: samsung: Use MODULE_DEVICE_TABLE() to include OF modalias
2015-05-21 15:56:53 +02:00
pwm: drop owner assignment from platform_drivers
2014-10-20 16:21:28 +02:00
pwm: sti: Maintain a bitmap of configured devices
2015-01-30 12:16:03 +01:00
pwm: sunxi: Fix whitespace issue
2015-11-10 13:06:47 +01:00
pwm: Add the pwm_is_enabled() helper
2015-07-20 09:46:06 +02:00
pwm: Add the pwm_is_enabled() helper
2015-07-20 09:46:06 +02:00
pwm: Add the pwm_is_enabled() helper
2015-07-20 09:46:06 +02:00
pwm: drop owner assignment from platform_drivers
2014-10-20 16:21:28 +02:00
pwm: drop owner assignment from platform_drivers
2014-10-20 16:21:28 +02:00
pwm: sysfs: Make use of the DEVICE_ATTR_[RW][WO] macro's
2015-11-10 13:06:46 +01:00
ad06fdeeef