pwm: Add NVIDIA Tegra SoC support

This commit adds a generic PWM framework driver for the PWFM controller
found on NVIDIA Tegra SoCs. The driver is based on code from the
Chromium kernel tree and was originally written by Gary King (NVIDIA)
and later modified by Simon Que (Chromium).

Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig
index 93c1052291a3..bda6f23af532 100644
--- a/drivers/pwm/Kconfig
+++ b/drivers/pwm/Kconfig
@@ -9,4 +9,14 @@ menuconfig PWM
 
 if PWM
 
+config PWM_TEGRA
+        tristate "NVIDIA Tegra PWM support"
+        depends on ARCH_TEGRA
+        help
+          Generic PWM framework driver for the PWFM controller found on NVIDIA
+          Tegra SoCs.
+
+          To compile this driver as a module, choose M here: the module
+          will be called pwm-tegra.
+
 endif