diff options
Diffstat (limited to 'drivers/pwm/pwm-renesas-tpu.c')
| -rw-r--r-- | drivers/pwm/pwm-renesas-tpu.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/drivers/pwm/pwm-renesas-tpu.c b/drivers/pwm/pwm-renesas-tpu.c index 28265fdfc9..2196080b41 100644 --- a/drivers/pwm/pwm-renesas-tpu.c +++ b/drivers/pwm/pwm-renesas-tpu.c @@ -79,7 +79,6 @@ struct tpu_pwm_device { struct tpu_device { struct platform_device *pdev; - struct pwm_chip chip; spinlock_t lock; void __iomem *base; @@ -87,7 +86,10 @@ struct tpu_device { struct tpu_pwm_device tpd[TPU_CHANNEL_MAX]; }; -#define to_tpu_device(c) container_of(c, struct tpu_device, chip) +static inline struct tpu_device *to_tpu_device(struct pwm_chip *chip) +{ + return pwmchip_get_drvdata(chip); +} static void tpu_pwm_write(struct tpu_pwm_device *tpd, int reg_nr, u16 value) { @@ -438,12 +440,14 @@ static const struct pwm_ops tpu_pwm_ops = { static int tpu_probe(struct platform_device *pdev) { + struct pwm_chip *chip; struct tpu_device *tpu; int ret; - tpu = devm_kzalloc(&pdev->dev, sizeof(*tpu), GFP_KERNEL); - if (tpu == NULL) - return -ENOMEM; + chip = devm_pwmchip_alloc(&pdev->dev, TPU_CHANNEL_MAX, sizeof(*tpu)); + if (IS_ERR(chip)) + return PTR_ERR(chip); + tpu = to_tpu_device(chip); spin_lock_init(&tpu->lock); tpu->pdev = pdev; @@ -460,15 +464,13 @@ static int tpu_probe(struct platform_device *pdev) /* Initialize and register the device. */ platform_set_drvdata(pdev, tpu); - tpu->chip.dev = &pdev->dev; - tpu->chip.ops = &tpu_pwm_ops; - tpu->chip.npwm = TPU_CHANNEL_MAX; + chip->ops = &tpu_pwm_ops; ret = devm_pm_runtime_enable(&pdev->dev); if (ret < 0) return dev_err_probe(&pdev->dev, ret, "Failed to enable runtime PM\n"); - ret = devm_pwmchip_add(&pdev->dev, &tpu->chip); + ret = devm_pwmchip_add(&pdev->dev, chip); if (ret < 0) return dev_err_probe(&pdev->dev, ret, "Failed to register PWM chip\n"); |