github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-23 14:42:08 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

pwm: pca9685: Make use of pwmchip_parent() accessor

Browse Source 
struct pwm_chip::dev is about to change. To not have to touch this
driver in the same commit as struct pwm_chip::dev, use the accessor
function provided for exactly this purpose.

Link: https://lore.kernel.org/r/14b6ec2bdaa7050b9f49a69f35edef731fd84c25.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
This commit is contained in:
Uwe Kleine-König 2024-02-14 10:32:09 +01:00
parent da5a8c555c
commit 20666a774d
1 changed files with 10 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/pwm/pwm-pca9685.c
View File

@ -110,7 +110,7 @@ static bool pca9685_prescaler_can_change(struct pca9685 *pca, int channel)
static int pca9685_read_reg(struct pwm_chip *chip, unsigned int reg, unsigned int *val)
{
struct pca9685 *pca = to_pca(chip);
struct device *dev = chip->dev;
struct device *dev = pwmchip_parent(chip);
int err;
err = regmap_read(pca->regmap, reg, val);
@ -123,7 +123,7 @@ static int pca9685_read_reg(struct pwm_chip *chip, unsigned int reg, unsigned in
static int pca9685_write_reg(struct pwm_chip *chip, unsigned int reg, unsigned int val)
{
struct pca9685 *pca = to_pca(chip);
struct device *dev = chip->dev;
struct device *dev = pwmchip_parent(chip);
int err;
err = regmap_write(pca->regmap, reg, val);
@ -254,7 +254,7 @@ static int pca9685_pwm_gpio_request(struct gpio_chip *gpio, unsigned int offset)
if (pca9685_pwm_test_and_set_inuse(pca, offset))
return -EBUSY;
pm_runtime_get_sync(chip->dev);
pm_runtime_get_sync(pwmchip_parent(chip));
return 0;
}
@ -279,7 +279,7 @@ static void pca9685_pwm_gpio_free(struct gpio_chip *gpio, unsigned int offset)
struct pca9685 *pca = to_pca(chip);
pca9685_pwm_set_duty(chip, offset, 0);
pm_runtime_put(chip->dev);
pm_runtime_put(pwmchip_parent(chip));
pca9685_pwm_clear_inuse(pca, offset);
}
@ -313,7 +313,7 @@ static int pca9685_pwm_gpio_direction_output(struct gpio_chip *gpio,
static int pca9685_pwm_gpio_probe(struct pwm_chip *chip)
{
struct pca9685 *pca = to_pca(chip);
struct device *dev = chip->dev;
struct device *dev = pwmchip_parent(chip);
pca->gpio.label = dev_name(dev);
pca->gpio.parent = dev;
@ -350,7 +350,7 @@ static inline int pca9685_pwm_gpio_probe(struct pwm_chip *chip)
static void pca9685_set_sleep_mode(struct pwm_chip *chip, bool enable)
{
struct device *dev = chip->dev;
struct device *dev = pwmchip_parent(chip);
struct pca9685 *pca = to_pca(chip);
int err = regmap_update_bits(pca->regmap, PCA9685_MODE1,
MODE1_SLEEP, enable ? MODE1_SLEEP : 0);
@ -379,7 +379,7 @@ static int __pca9685_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
prescale = DIV_ROUND_CLOSEST_ULL(PCA9685_OSC_CLOCK_MHZ * state->period,
PCA9685_COUNTER_RANGE * 1000) - 1;
if (prescale < PCA9685_PRESCALE_MIN || prescale > PCA9685_PRESCALE_MAX) {
dev_err(chip->dev, "pwm not changed: period out of bounds!\n");
dev_err(pwmchip_parent(chip), "pwm not changed: period out of bounds!\n");
return -EINVAL;
}
@ -391,7 +391,7 @@ static int __pca9685_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
pca9685_read_reg(chip, PCA9685_PRESCALE, &val);
if (prescale != val) {
if (!pca9685_prescaler_can_change(pca, pwm->hwpwm)) {
dev_err(chip->dev,
dev_err(pwmchip_parent(chip),
"pwm not changed: periods of enabled pwms must match!\n");
return -EBUSY;
}
@ -487,7 +487,7 @@ static int pca9685_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm)
mutex_unlock(&pca->lock);
}
pm_runtime_get_sync(chip->dev);
pm_runtime_get_sync(pwmchip_parent(chip));
return 0;
}
@ -501,7 +501,7 @@ static void pca9685_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm)
clear_bit(pwm->hwpwm, pca->pwms_enabled);
mutex_unlock(&pca->lock);
pm_runtime_put(chip->dev);
pm_runtime_put(pwmchip_parent(chip));
pca9685_pwm_clear_inuse(pca, pwm->hwpwm);
}