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pwm: iqs620a: Make use of devm_pwmchip_alloc() function

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This prepares the pwm-iqs620a 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/85cb0e73baadd76ede364abc4b57ee72000880e5.1707900770.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 10:31:41 +01:00
parent 07b61160e4
commit 1b6691680b
1 changed files with 8 additions and 9 deletions
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17
drivers/pwm/pwm-iqs620a.c
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@ -35,7 +35,6 @@
struct iqs620_pwm_private {
struct iqs62x_core *iqs62x;
struct device *dev;
struct pwm_chip chip;
struct notifier_block notifier;
struct mutex lock;
unsigned int duty_scale;
@ -43,7 +42,7 @@ struct iqs620_pwm_private {
static inline struct iqs620_pwm_private *iqs620_pwm_from_chip(struct pwm_chip *chip)
{
return container_of(chip, struct iqs620_pwm_private, chip);
return pwmchip_get_drvdata(chip);
}
static int iqs620_pwm_init(struct iqs620_pwm_private *iqs620_pwm,
@ -189,14 +188,16 @@ static void iqs620_pwm_notifier_unregister(void *context)
static int iqs620_pwm_probe(struct platform_device *pdev)
{
struct iqs62x_core *iqs62x = dev_get_drvdata(pdev->dev.parent);
struct pwm_chip *chip;
struct iqs620_pwm_private *iqs620_pwm;
unsigned int val;
int ret;
iqs620_pwm = devm_kzalloc(&pdev->dev, sizeof(*iqs620_pwm), GFP_KERNEL);
if (!iqs620_pwm)
return -ENOMEM;
chip = devm_pwmchip_alloc(&pdev->dev, 1, sizeof(*iqs620_pwm));
if (IS_ERR(chip))
return PTR_ERR(chip);
iqs620_pwm = iqs620_pwm_from_chip(chip);
iqs620_pwm->dev = &pdev->dev;
iqs620_pwm->iqs62x = iqs62x;
@ -212,9 +213,7 @@ static int iqs620_pwm_probe(struct platform_device *pdev)
iqs620_pwm->duty_scale = val + 1;
}
iqs620_pwm->chip.dev = &pdev->dev;
iqs620_pwm->chip.ops = &iqs620_pwm_ops;
iqs620_pwm->chip.npwm = 1;
chip->ops = &iqs620_pwm_ops;
mutex_init(&iqs620_pwm->lock);
@ -232,7 +231,7 @@ static int iqs620_pwm_probe(struct platform_device *pdev)
if (ret)
return ret;
ret = devm_pwmchip_add(&pdev->dev, &iqs620_pwm->chip);
ret = devm_pwmchip_add(&pdev->dev, chip);
if (ret)
dev_err(&pdev->dev, "Failed to add device: %d\n", ret);