Commit 8ba2725f authored Dec 02, 2022 by Doug Brown Committed by Thierry Reding Dec 06, 2022

pwm: pxa: Add reference manual link and limitations



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>
Link: https://lore.kernel.org/r/20221113233639.24244-6-doug@schmorgal.com


Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

parent 092c2ef4

drivers/pwm/pwm-pxa.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -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>