diff options
Diffstat (limited to 'drivers/pwm')
| -rw-r--r-- | drivers/pwm/pwm-sun4i.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/drivers/pwm/pwm-sun4i.c b/drivers/pwm/pwm-sun4i.c index 2437e5961f5e..5c29590d1821 100644 --- a/drivers/pwm/pwm-sun4i.c +++ b/drivers/pwm/pwm-sun4i.c @@ -81,7 +81,6 @@ struct sun4i_pwm_data { }; struct sun4i_pwm_chip { - struct pwm_chip chip; struct clk *bus_clk; struct clk *clk; struct reset_control *rst; @@ -92,7 +91,7 @@ struct sun4i_pwm_chip { static inline struct sun4i_pwm_chip *to_sun4i_pwm_chip(struct pwm_chip *chip) { - return container_of(chip, struct sun4i_pwm_chip, chip); + return pwmchip_get_drvdata(chip); } static inline u32 sun4i_pwm_readl(struct sun4i_pwm_chip *sun4ichip, @@ -385,18 +384,20 @@ MODULE_DEVICE_TABLE(of, sun4i_pwm_dt_ids); static int sun4i_pwm_probe(struct platform_device *pdev) { struct pwm_chip *chip; + const struct sun4i_pwm_data *data; struct sun4i_pwm_chip *sun4ichip; int ret; - sun4ichip = devm_kzalloc(&pdev->dev, sizeof(*sun4ichip), GFP_KERNEL); - if (!sun4ichip) - return -ENOMEM; - chip = &sun4ichip->chip; - - sun4ichip->data = of_device_get_match_data(&pdev->dev); - if (!sun4ichip->data) + data = of_device_get_match_data(&pdev->dev); + if (!data) return -ENODEV; + chip = devm_pwmchip_alloc(&pdev->dev, data->npwm, sizeof(*sun4ichip)); + if (IS_ERR(chip)) + return PTR_ERR(chip); + sun4ichip = to_sun4i_pwm_chip(chip); + + sun4ichip->data = data; sun4ichip->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(sun4ichip->base)) return PTR_ERR(sun4ichip->base); @@ -453,9 +454,7 @@ static int sun4i_pwm_probe(struct platform_device *pdev) goto err_bus; } - chip->dev = &pdev->dev; chip->ops = &sun4i_pwm_ops; - chip->npwm = sun4ichip->data->npwm; spin_lock_init(&sun4ichip->ctrl_lock); |