[v6,055/164] pwm: jz4740: Change prototype of a helper to prepare further changes

Commit Message

Uwe Kleine-König Feb. 14, 2024, 9:31 a.m. UTC

This prepares the driver for further changes that will make it harder to
determine the pwm_chip from a given jz4740_pwm_chip. To just not have to
do that, rework jz4740_pwm_can_use_chn() to take a pwm_chip.

Signed-off-by: Uwe Kleine-König <[e-mail]>
---
 drivers/pwm/pwm-jz4740.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

Patch

diff --git a/drivers/pwm/pwm-jz4740.c b/drivers/pwm/pwm-jz4740.c
index 3933418e551b..de9e66065e48 100644
--- a/drivers/pwm/pwm-jz4740.c
+++ b/drivers/pwm/pwm-jz4740.c
@@ -35,13 +35,12 @@  static inline struct jz4740_pwm_chip *to_jz4740(struct pwm_chip *chip)
 	return container_of(chip, struct jz4740_pwm_chip, chip);
 }
 
-static bool jz4740_pwm_can_use_chn(struct jz4740_pwm_chip *jz,
-				   unsigned int channel)
+static bool jz4740_pwm_can_use_chn(struct pwm_chip *chip, unsigned int channel)
 {
 	/* Enable all TCU channels for PWM use by default except channels 0/1 */
-	u32 pwm_channels_mask = GENMASK(jz->chip.npwm - 1, 2);
+	u32 pwm_channels_mask = GENMASK(chip->npwm - 1, 2);
 
-	device_property_read_u32(jz->chip.dev->parent,
+	device_property_read_u32(chip->dev->parent,
 				 "ingenic,pwm-channels-mask",
 				 &pwm_channels_mask);
 
@@ -55,7 +54,7 @@  static int jz4740_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm)
 	char name[16];
 	int err;
 
-	if (!jz4740_pwm_can_use_chn(jz, pwm->hwpwm))
+	if (!jz4740_pwm_can_use_chn(chip, pwm->hwpwm))
 		return -EBUSY;
 
 	snprintf(name, sizeof(name), "timer%u", pwm->hwpwm);