Commit 2f47786c authored by Uwe Kleine-König's avatar Uwe Kleine-König Committed by Thierry Reding
Browse files

pwm: mtk-disp: Propagate errors in .get_state() to the caller 



.get_state() can return an error indication. Make use of it to propagate
failing hardware accesses.

Reviewed-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: default avatarConor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20221130152148.2769768-9-u.kleine-koenig@pengutronix.de


Signed-off-by: default avatarUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: default avatarThierry Reding <thierry.reding@gmail.com>
parent 51b9f2fb

drivers/pwm/pwm-mtk-disp.c

+2 −2
Original line number Diff line number Diff line
@@ -184,14 +184,14 @@ static int mtk_disp_pwm_get_state(struct pwm_chip *chip, 
	err = clk_prepare_enable(mdp->clk_main);

	if (err < 0) {

		dev_err(chip->dev, "Can't enable mdp->clk_main: %pe\n", ERR_PTR(err));

		return 0;

		return err;

	}



	err = clk_prepare_enable(mdp->clk_mm);

	if (err < 0) {

		dev_err(chip->dev, "Can't enable mdp->clk_mm: %pe\n", ERR_PTR(err));

		clk_disable_unprepare(mdp->clk_main);

		return 0;

		return err;

	}



	rate = clk_get_rate(mdp->clk_main);