diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-14 10:31:42 +0100 |
|---|---|---|
| committer | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-19 11:04:10 +0100 |
| commit | cebf107de5c9417cfde9649161d9cc3b43ac1b45 (patch) | |
| tree | 061058218c690e7979b7a494bba36818cfd32bb8 /drivers/pwm | |
| parent | 1b6691680bcc845276b955bc078e953c86c6ecd3 (diff) | |
| download | linux-cebf107de5c9417cfde9649161d9cc3b43ac1b45.tar.gz | |
pwm: jz4740: Change prototype of a helper to prepare further changes
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.
Link: https://lore.kernel.org/r/83b826f0bf58b93f26d3bc30b1a957f84eedf41a.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Diffstat (limited to 'drivers/pwm')
| -rw-r--r-- | drivers/pwm/pwm-jz4740.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/pwm/pwm-jz4740.c b/drivers/pwm/pwm-jz4740.c index 3933418e551b41..de9e66065e48ba 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); |