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pwm: fsl-ftm: Make use of devm_pwmchip_alloc() function

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This prepares the pwm-fsl-ftm 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/b3c75dea5b2944402b14944fdf71a5db0e26cbd7.1707900770.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 10:31:27 +01:00
parent 097779f157
commit 2e8d68c02e
1 changed files with 5 additions and 9 deletions
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14
drivers/pwm/pwm-fsl-ftm.c
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@ -40,7 +40,6 @@ struct fsl_pwm_periodcfg {
}; };
struct fsl_pwm_chip { struct fsl_pwm_chip {
struct pwm_chip chip;
struct mutex lock; struct mutex lock;
struct regmap *regmap; struct regmap *regmap;
@ -55,7 +54,7 @@ struct fsl_pwm_chip {
static inline struct fsl_pwm_chip *to_fsl_chip(struct pwm_chip *chip) static inline struct fsl_pwm_chip *to_fsl_chip(struct pwm_chip *chip)
{ {
return container_of(chip, struct fsl_pwm_chip, chip); return pwmchip_get_drvdata(chip);
} }
static void ftm_clear_write_protection(struct fsl_pwm_chip *fpc) static void ftm_clear_write_protection(struct fsl_pwm_chip *fpc)
@ -398,15 +397,14 @@ static int fsl_pwm_probe(struct platform_device *pdev)
void __iomem *base; void __iomem *base;
int ret; int ret;
fpc = devm_kzalloc(&pdev->dev, sizeof(*fpc), GFP_KERNEL); chip = devm_pwmchip_alloc(&pdev->dev, 8, sizeof(*fpc));
if (!fpc) if (IS_ERR(chip))
return -ENOMEM; return PTR_ERR(chip);
chip = &fpc->chip; fpc = to_fsl_chip(chip);
mutex_init(&fpc->lock); mutex_init(&fpc->lock);
fpc->soc = of_device_get_match_data(&pdev->dev); fpc->soc = of_device_get_match_data(&pdev->dev);
chip->dev = &pdev->dev;
base = devm_platform_ioremap_resource(pdev, 0); base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(base)) if (IS_ERR(base))
@ -446,9 +444,7 @@ static int fsl_pwm_probe(struct platform_device *pdev)
if (IS_ERR(fpc->ipg_clk)) if (IS_ERR(fpc->ipg_clk))
fpc->ipg_clk = fpc->clk[FSL_PWM_CLK_SYS]; fpc->ipg_clk = fpc->clk[FSL_PWM_CLK_SYS];
chip->ops = &fsl_pwm_ops; chip->ops = &fsl_pwm_ops;
chip->npwm = 8;
ret = devm_pwmchip_add(&pdev->dev, chip); ret = devm_pwmchip_add(&pdev->dev, chip);
if (ret < 0) { if (ret < 0) {