pwm: Add new pwm-samsung driver

This patch introduces new Samsung PWM driver, which is completely rewritten to be multiplatform- and DeviceTree-aware. In addition, remaining problems of old driver are fixed, such as: - proper handling of hardware variants, - synchronization on SMP systems, - handling of boundary parameter values, - hardware sharing with PWM clocksource driver, - undefined state of PWM output after stopping PWM channel. Signed-off-by: Tomasz Figa <[email protected]> Reviewed-by: Sylwester Nawrocki <[email protected]> Tested-by: Heiko Stuebner <[email protected]> Tested-by: Mark Brown <[email protected]> Tested-by: Sylwester Nawrocki <[email protected]> Acked-by: Arnd Bergmann <[email protected]> Acked-by: Thierry Reding <[email protected]>
rtvt123 · Aug 12, 2013 · 11ad39e · 11ad39e
1 parent 615c19e
commit 11ad39e
Show file tree

Hide file tree

Showing 3 changed files with 626 additions and 0 deletions.
diff --git a/drivers/pwm/Makefile b/drivers/pwm/Makefile
@@ -12,6 +12,7 @@ obj-$(CONFIG_PWM_PUV3)		+= pwm-puv3.o
 obj-$(CONFIG_PWM_PXA)		+= pwm-pxa.o
 obj-$(CONFIG_PWM_RENESAS_TPU)	+= pwm-renesas-tpu.o
 obj-$(CONFIG_PWM_SAMSUNG)	+= pwm-samsung-legacy.o
+obj-$(CONFIG_PWM_SAMSUNG)	+= pwm-samsung.o
 obj-$(CONFIG_PWM_SPEAR)		+= pwm-spear.o
 obj-$(CONFIG_PWM_TEGRA)		+= pwm-tegra.o
 obj-$(CONFIG_PWM_TIECAP)	+= pwm-tiecap.o