diff mbox series

[v1,091/101] pwm: stm32: Store parent device in driver data

Message ID 20230808171931.944154-92-u.kleine-koenig@pengutronix.de
State Superseded
Headers show
Series pwm: Fix lifetime issues for pwm_chips | expand

Commit Message

Uwe Kleine-König Aug. 8, 2023, 5:19 p.m. UTC 
struct pwm_chip::dev is about to change. To not have to touch this
driver in the same commit as struct pwm_chip::dev, store a pointer to
the parent device in driver data.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
 drivers/pwm/pwm-stm32.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/pwm/pwm-stm32.c b/drivers/pwm/pwm-stm32.c
index 73fbd7a119ec..e07c43e38724 100644
--- a/drivers/pwm/pwm-stm32.c
+++ b/drivers/pwm/pwm-stm32.c
@@ -27,6 +27,7 @@  struct stm32_breakinput {
 };
 
 struct stm32_pwm {
+	struct device *parent;
 	struct mutex lock; /* protect pwm config/enable */
 	struct clk *clk;
 	struct regmap *regmap;
@@ -108,7 +109,7 @@  static int stm32_pwm_raw_capture(struct stm32_pwm *priv, struct pwm_device *pwm,
 				 unsigned long tmo_ms, u32 *raw_prd,
 				 u32 *raw_dty)
 {
-	struct device *parent = pwm->chip->dev->parent;
+	struct device *parent = priv->parent;
 	enum stm32_timers_dmas dma_id;
 	u32 ccen, ccr;
 	int ret;
@@ -184,7 +185,7 @@  static int stm32_pwm_capture(struct pwm_chip *chip, struct pwm_device *pwm,
 
 	ret = clk_enable(priv->clk);
 	if (ret) {
-		dev_err(chip->dev, "failed to enable counter clock\n");
+		dev_err(priv->parent, "failed to enable counter clock\n");
 		goto unlock;
 	}
 
@@ -621,6 +622,7 @@  static int stm32_pwm_probe(struct platform_device *pdev)
 	priv = to_stm32_pwm_dev(chip);
 
 	mutex_init(&priv->lock);
+	priv->parent = &pdev->dev;
 	priv->regmap = ddata->regmap;
 	priv->clk = ddata->clk;
 	priv->max_arr = ddata->max_arr;