From: Uwe Kleine-König u.kleine-koenig@pengutronix.de
[ Upstream commit e25ac87d3f831fed002c34aadddaf4ebb4ea45ec ]
The suspend callback disables the periph clock when the PWM is enabled and resume reenables this clock if the PWM was disabled before. Judging from the code comment it's suspend that is wrong here. Fix accordingly.
Fixes: f9bb9da7c09d ("pwm: atmel-hlcdc: Implement the suspend/resume hooks") Reviewed-by: Claudiu Beznea claudiu.beznea@tuxon.dev Link: https://lore.kernel.org/r/b51ea92b0a45eff3dc83b08adefd43d930df996c.170626923... Signed-off-by: Uwe Kleine-König u.kleine-koenig@pengutronix.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/pwm/pwm-atmel-hlcdc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pwm/pwm-atmel-hlcdc.c b/drivers/pwm/pwm-atmel-hlcdc.c index 3f2c5031a3ba8..1f6fc9a9fcf3e 100644 --- a/drivers/pwm/pwm-atmel-hlcdc.c +++ b/drivers/pwm/pwm-atmel-hlcdc.c @@ -185,7 +185,7 @@ static int atmel_hlcdc_pwm_suspend(struct device *dev) struct atmel_hlcdc_pwm *atmel = dev_get_drvdata(dev);
/* Keep the periph clock enabled if the PWM is still running. */ - if (pwm_is_enabled(&atmel->chip.pwms[0])) + if (!pwm_is_enabled(&atmel->chip.pwms[0])) clk_disable_unprepare(atmel->hlcdc->periph_clk);
return 0;