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path: root/drivers/pwm/pwm-apple.c
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Diffstat (limited to 'drivers/pwm/pwm-apple.c')
-rw-r--r--drivers/pwm/pwm-apple.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/pwm/pwm-apple.c b/drivers/pwm/pwm-apple.c
index 4d755b628d..6e58aca2f1 100644
--- a/drivers/pwm/pwm-apple.c
+++ b/drivers/pwm/pwm-apple.c
@@ -32,14 +32,13 @@
#define APPLE_PWM_CTRL_OUTPUT_ENABLE BIT(14)
struct apple_pwm {
- struct pwm_chip chip;
void __iomem *base;
u64 clkrate;
};
static inline struct apple_pwm *to_apple_pwm(struct pwm_chip *chip)
{
- return container_of(chip, struct apple_pwm, chip);
+ return pwmchip_get_drvdata(chip);
}
static int apple_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
@@ -103,13 +102,16 @@ static const struct pwm_ops apple_pwm_ops = {
static int apple_pwm_probe(struct platform_device *pdev)
{
+ struct pwm_chip *chip;
struct apple_pwm *fpwm;
struct clk *clk;
int ret;
- fpwm = devm_kzalloc(&pdev->dev, sizeof(*fpwm), GFP_KERNEL);
- if (!fpwm)
- return -ENOMEM;
+ chip = devm_pwmchip_alloc(&pdev->dev, 1, sizeof(*fpwm));
+ if (IS_ERR(chip))
+ return PTR_ERR(chip);
+
+ fpwm = to_apple_pwm(chip);
fpwm->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(fpwm->base))
@@ -129,11 +131,9 @@ static int apple_pwm_probe(struct platform_device *pdev)
if (fpwm->clkrate > NSEC_PER_SEC)
return dev_err_probe(&pdev->dev, -EINVAL, "pwm clock out of range");
- fpwm->chip.dev = &pdev->dev;
- fpwm->chip.npwm = 1;
- fpwm->chip.ops = &apple_pwm_ops;
+ chip->ops = &apple_pwm_ops;
- ret = devm_pwmchip_add(&pdev->dev, &fpwm->chip);
+ ret = devm_pwmchip_add(&pdev->dev, chip);
if (ret < 0)
return dev_err_probe(&pdev->dev, ret, "unable to add pwm chip");