diff options
Diffstat (limited to 'drivers/pwm/pwm-imx1.c')
| -rw-r--r-- | drivers/pwm/pwm-imx1.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/drivers/pwm/pwm-imx1.c b/drivers/pwm/pwm-imx1.c index d175d895f22a..1d2aae2d278f 100644 --- a/drivers/pwm/pwm-imx1.c +++ b/drivers/pwm/pwm-imx1.c @@ -28,10 +28,12 @@ struct pwm_imx1_chip { struct clk *clk_ipg; struct clk *clk_per; void __iomem *mmio_base; - struct pwm_chip chip; }; -#define to_pwm_imx1_chip(chip) container_of(chip, struct pwm_imx1_chip, chip) +static inline struct pwm_imx1_chip *to_pwm_imx1_chip(struct pwm_chip *chip) +{ + return pwmchip_get_drvdata(chip); +} static int pwm_imx1_clk_prepare_enable(struct pwm_chip *chip) { @@ -156,11 +158,13 @@ MODULE_DEVICE_TABLE(of, pwm_imx1_dt_ids); static int pwm_imx1_probe(struct platform_device *pdev) { + struct pwm_chip *chip; struct pwm_imx1_chip *imx; - imx = devm_kzalloc(&pdev->dev, sizeof(*imx), GFP_KERNEL); - if (!imx) - return -ENOMEM; + chip = devm_pwmchip_alloc(&pdev->dev, 1, sizeof(*imx)); + if (IS_ERR(chip)) + return PTR_ERR(chip); + imx = to_pwm_imx1_chip(chip); imx->clk_ipg = devm_clk_get(&pdev->dev, "ipg"); if (IS_ERR(imx->clk_ipg)) @@ -172,15 +176,13 @@ static int pwm_imx1_probe(struct platform_device *pdev) return dev_err_probe(&pdev->dev, PTR_ERR(imx->clk_per), "failed to get peripheral clock\n"); - imx->chip.ops = &pwm_imx1_ops; - imx->chip.dev = &pdev->dev; - imx->chip.npwm = 1; + chip->ops = &pwm_imx1_ops; imx->mmio_base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(imx->mmio_base)) return PTR_ERR(imx->mmio_base); - return devm_pwmchip_add(&pdev->dev, &imx->chip); + return devm_pwmchip_add(&pdev->dev, chip); } static struct platform_driver pwm_imx1_driver = { |