This is a note to let you know that I've just added the patch titled
pwm: imx1: Don't disable clocks at device remove time
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pwm-imx1-don-t-disable-clocks-at-device-remove-time.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit c4c87d51ae2764f57a0f226e87dea9fcbe4df98a
Author: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
Date: Tue May 25 08:35:27 2021 +0200
pwm: imx1: Don't disable clocks at device remove time
[ Upstream commit 1bc6ea31cb41d50302a3c9b401964cf0a88d41f9 ]
The .remove() callback disables clocks that were not enabled in
.probe(). So just probing and then unbinding the driver results in a clk
enable imbalance.
So just drop the call to disable the clocks. (Which BTW was also in the
wrong order because the call makes the PWM unfunctional and so should
have come only after pwmchip_remove()).
Fixes: 9f4c8f9607c3 ("pwm: imx: Add ipg clock operation")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
Signed-off-by: Thierry Reding <thierry.reding@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/pwm/pwm-imx1.c b/drivers/pwm/pwm-imx1.c
index f8b2c2e001a7..c17652c40e14 100644
--- a/drivers/pwm/pwm-imx1.c
+++ b/drivers/pwm/pwm-imx1.c
@@ -180,8 +180,6 @@ static int pwm_imx1_remove(struct platform_device *pdev)
{
struct pwm_imx1_chip *imx = platform_get_drvdata(pdev);
- pwm_imx1_clk_disable_unprepare(&imx->chip);
-
return pwmchip_remove(&imx->chip);
}
