pwm: spear: Don't modify HW state in .remove callback
authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Wed, 28 Apr 2021 09:05:24 +0000 (11:05 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 20 Jul 2021 14:17:51 +0000 (16:17 +0200)
[ Upstream commit b601a18f12383001e7a8da238de7ca1559ebc450 ]

A consumer is expected to disable a PWM before calling pwm_put(). And if
they didn't there is hopefully a good reason (or the consumer needs
fixing). Also if disabling an enabled PWM was the right thing to do,
this should better be done in the framework instead of in each low level
driver.

So drop the hardware modification from the .remove() callback.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/pwm/pwm-spear.c

index 6c6b44fd3f438f58ad1de57e850fc601776ca8e5..2d11ac277de8d610115c1d32481f7ef4a7da8a45 100644 (file)
@@ -231,10 +231,6 @@ static int spear_pwm_probe(struct platform_device *pdev)
 static int spear_pwm_remove(struct platform_device *pdev)
 {
        struct spear_pwm_chip *pc = platform_get_drvdata(pdev);
-       int i;
-
-       for (i = 0; i < NUM_PWM; i++)
-               pwm_disable(&pc->chip.pwms[i]);
 
        /* clk was prepared in probe, hence unprepare it here */
        clk_unprepare(pc->clk);