From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Tue, 30 Jul 2019 12:45:27 +0000 (+0200)
Subject: pwm: imx: Document known limitations
X-Git-Tag: v5.4-rc1~27^2~30
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f6960976c465179cd1b64dfae2edfb647820af1b;p=thirdparty%2Fkernel%2Flinux.git

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>
---

diff --git a/drivers/pwm/pwm-imx27.c b/drivers/pwm/pwm-imx27.c
index 434a351fb626b..91c23cbbc1677 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>