| Message ID | 20221113233639.24244-6-doug@schmorgal.com |
|---|---|
| State | Accepted |
| Headers | show |
| Series | pwm: pxa: Fixes for enable/disable transitions | expand |
On Sun, Nov 13, 2022 at 03:36:38PM -0800, Doug Brown wrote: > Add a pointer to the location of reference manuals for some of the > supported chips, and add a limitations section explaining the hardware's > PWM disable behavior. > > Suggested-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> > Signed-off-by: Doug Brown <doug@schmorgal.com> Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Thanks Uwe
diff --git a/drivers/pwm/pwm-pxa.c b/drivers/pwm/pwm-pxa.c index 00063ead7c0a..46ed668bd141 100644 --- a/drivers/pwm/pwm-pxa.c +++ b/drivers/pwm/pwm-pxa.c @@ -6,6 +6,13 @@ * * 2008-02-13 initial version * eric miao <eric.miao@marvell.com> + * + * Links to reference manuals for some of the supported PWM chips can be found + * in Documentation/arm/marvell.rst. + * + * Limitations: + * - When PWM is stopped, the current PWM period stops abruptly at the next + * input clock (PWMCR_SD is set) and the output is driven to inactive. */ #include <linux/module.h>
Add a pointer to the location of reference manuals for some of the supported chips, and add a limitations section explaining the hardware's PWM disable behavior. Suggested-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Doug Brown <doug@schmorgal.com> --- drivers/pwm/pwm-pxa.c | 7 +++++++ 1 file changed, 7 insertions(+)