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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2019-07-30 15:45:27 +0300
committerThierry Reding <thierry.reding@gmail.com>2019-09-21 01:57:50 +0300
commitf6960976c465179cd1b64dfae2edfb647820af1b (patch)
treea1216894805e832ee7d519adf238b8c5a3e6ff71 /drivers/pwm/pwm-imx27.c
parent3b442c60cf9766c76bc3c1e44e3e387853074a08 (diff)
downloadlinux-f6960976c465179cd1b64dfae2edfb647820af1b.tar.xz
pwm: imx: Document known limitations
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/pwm/pwm-imx27.c')
-rw-r--r--drivers/pwm/pwm-imx27.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/pwm/pwm-imx27.c b/drivers/pwm/pwm-imx27.c
index 434a351fb626..91c23cbbc167 100644
--- a/drivers/pwm/pwm-imx27.c
+++ b/drivers/pwm/pwm-imx27.c
@@ -3,6 +3,10 @@
* simple driver for PWM (Pulse Width Modulator) controller
*
* Derived from pxa PWM driver by eric miao <eric.miao@marvell.com>
+ *
+ * Limitations:
+ * - When disabled the output is driven to 0 independent of the configured
+ * polarity.
*/
#include <linux/bitfield.h>