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path: root/drivers/pwm/pwm-mtk-disp.c
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Diffstat (limited to 'drivers/pwm/pwm-mtk-disp.c')
-rw-r--r--drivers/pwm/pwm-mtk-disp.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/pwm/pwm-mtk-disp.c b/drivers/pwm/pwm-mtk-disp.c
index 3fbb4bae93a4..ccf0ccdef29d 100644
--- a/drivers/pwm/pwm-mtk-disp.c
+++ b/drivers/pwm/pwm-mtk-disp.c
@@ -172,9 +172,9 @@ static int mtk_disp_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
return 0;
}
-static void mtk_disp_pwm_get_state(struct pwm_chip *chip,
- struct pwm_device *pwm,
- struct pwm_state *state)
+static int mtk_disp_pwm_get_state(struct pwm_chip *chip,
+ struct pwm_device *pwm,
+ struct pwm_state *state)
{
struct mtk_disp_pwm *mdp = to_mtk_disp_pwm(chip);
u64 rate, period, high_width;
@@ -184,14 +184,14 @@ static void 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;
+ return 0;
}
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;
+ return 0;
}
rate = clk_get_rate(mdp->clk_main);
@@ -212,6 +212,8 @@ static void mtk_disp_pwm_get_state(struct pwm_chip *chip,
state->polarity = PWM_POLARITY_NORMAL;
clk_disable_unprepare(mdp->clk_mm);
clk_disable_unprepare(mdp->clk_main);
+
+ return 0;
}
static const struct pwm_ops mtk_disp_pwm_ops = {