pwm: pwm-tiehrpwm: PWM driver support for EHRPWM

Enhanced high resolution PWM module (EHRPWM) hardware can be used to
generate PWM output over 2 channels. This commit adds PWM driver support
for EHRPWM device present on AM33XX SOC. Current implementation supports
simple PWM functionality.

Reviewed-by: Vaibhav Bedia <vaibhav.bedia@ti.com>
Signed-off-by: Philip, Avinash <avinashphilip@ti.com>
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 2b7db5d1f852..8fc3808d7a3e 100644
--- a/drivers/pwm/Kconfig
+++ b/drivers/pwm/Kconfig
@@ -86,6 +86,16 @@ config  PWM_TIECAP
           To compile this driver as a module, choose M here: the module
           will be called pwm-tiecap.
 
+config  PWM_TIEHRPWM
+        tristate "EHRPWM PWM support"
+        depends on SOC_AM33XX
+        help
+          PWM driver support for the EHRPWM controller found on AM33XX
+          TI SOC
+
+          To compile this driver as a module, choose M here: the module
+          will be called pwm-tiehrpwm.
+
 config PWM_VT8500
         tristate "vt8500 pwm support"
         depends on ARCH_VT8500