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OpenCloudOS-Kernel
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pwm: hibvt: Disable the clock only after the PWM was unregistered 

The driver is supposed to stay functional until pwmchip_remove()
returns. So disable clocks and reset the hardware only after that.

The return value of pwmchip_remove doesn't need to be checked because
it returns zero anyhow and should be changed to return void eventually.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
This commit is contained in:
Uwe Kleine-König 2021-07-07 18:27:54 +02:00 committed by Thierry Reding
parent d44084c934
commit 04d775210f
1 changed files with 3 additions and 1 deletions
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4
drivers/pwm/pwm-hibvt.c
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@ -248,13 +248,15 @@ static int hibvt_pwm_remove(struct platform_device *pdev)
pwm_chip = platform_get_drvdata(pdev);
pwmchip_remove(&pwm_chip->chip);
reset_control_assert(pwm_chip->rstc);
msleep(30);
reset_control_deassert(pwm_chip->rstc);
clk_disable_unprepare(pwm_chip->clk);
return pwmchip_remove(&pwm_chip->chip);
return 0;
}
static const struct of_device_id hibvt_pwm_of_match[] = {