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pwm: crc: Make use of devm_pwmchip_alloc() function

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This prepares the pwm-crc driver to further changes of the pwm core
outlined in the commit introducing devm_pwmchip_alloc(). There is no
intended semantical change and the driver should behave as before.

Link: https://lore.kernel.org/r/bbe4896eabc240c678c66fabb6329f4e6cd04eda.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 10:31:15 +01:00
parent 5b86d1112b
commit b1a80d5053
1 changed files with 8 additions and 10 deletions
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18
drivers/pwm/pwm-crc.c
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@ -26,17 +26,15 @@
/**
* struct crystalcove_pwm - Crystal Cove PWM controller
* @chip: the abstract pwm_chip structure.
* @regmap: the regmap from the parent device.
*/
struct crystalcove_pwm {
struct pwm_chip chip;
struct regmap *regmap;
};
static inline struct crystalcove_pwm *to_crc_pwm(struct pwm_chip *chip)
{
return container_of(chip, struct crystalcove_pwm, chip);
return pwmchip_get_drvdata(chip);
}
static int crc_pwm_calc_clk_div(int period_ns)
@ -160,22 +158,22 @@ static const struct pwm_ops crc_pwm_ops = {
static int crystalcove_pwm_probe(struct platform_device *pdev)
{
struct pwm_chip *chip;
struct crystalcove_pwm *crc_pwm;
struct device *dev = pdev->dev.parent;
struct intel_soc_pmic *pmic = dev_get_drvdata(dev);
crc_pwm = devm_kzalloc(&pdev->dev, sizeof(*crc_pwm), GFP_KERNEL);
if (!crc_pwm)
return -ENOMEM;
chip = devm_pwmchip_alloc(&pdev->dev, 1, sizeof(*crc_pwm));
if (IS_ERR(chip))
return PTR_ERR(chip);
crc_pwm = to_crc_pwm(chip);
crc_pwm->chip.dev = &pdev->dev;
crc_pwm->chip.ops = &crc_pwm_ops;
crc_pwm->chip.npwm = 1;
chip->ops = &crc_pwm_ops;
/* get the PMIC regmap */
crc_pwm->regmap = pmic->regmap;
return devm_pwmchip_add(&pdev->dev, &crc_pwm->chip);
return devm_pwmchip_add(&pdev->dev, chip);
}
static struct platform_driver crystalcove_pwm_driver = {