diff options
Diffstat (limited to 'drivers/pwm/pwm-spear.c')
| -rw-r--r-- | drivers/pwm/pwm-spear.c | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/drivers/pwm/pwm-spear.c b/drivers/pwm/pwm-spear.c index ff991319f..6c6f3b38c 100644 --- a/drivers/pwm/pwm-spear.c +++ b/drivers/pwm/pwm-spear.c @@ -48,17 +48,15 @@ * * @mmio_base: base address of pwm chip * @clk: pointer to clk structure of pwm chip - * @chip: linux pwm chip representation */ struct spear_pwm_chip { void __iomem *mmio_base; struct clk *clk; - struct pwm_chip chip; }; static inline struct spear_pwm_chip *to_spear_pwm_chip(struct pwm_chip *chip) { - return container_of(chip, struct spear_pwm_chip, chip); + return pwmchip_get_drvdata(chip); } static inline u32 spear_pwm_readl(struct spear_pwm_chip *chip, unsigned int num, @@ -194,13 +192,15 @@ static const struct pwm_ops spear_pwm_ops = { static int spear_pwm_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; + struct pwm_chip *chip; struct spear_pwm_chip *pc; int ret; u32 val; - pc = devm_kzalloc(&pdev->dev, sizeof(*pc), GFP_KERNEL); - if (!pc) - return -ENOMEM; + chip = devm_pwmchip_alloc(&pdev->dev, NUM_PWM, sizeof(*pc)); + if (IS_ERR(chip)) + return PTR_ERR(chip); + pc = to_spear_pwm_chip(chip); pc->mmio_base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(pc->mmio_base)) @@ -211,9 +211,7 @@ static int spear_pwm_probe(struct platform_device *pdev) return dev_err_probe(&pdev->dev, PTR_ERR(pc->clk), "Failed to get clock\n"); - pc->chip.dev = &pdev->dev; - pc->chip.ops = &spear_pwm_ops; - pc->chip.npwm = NUM_PWM; + chip->ops = &spear_pwm_ops; if (of_device_is_compatible(np, "st,spear1340-pwm")) { ret = clk_enable(pc->clk); @@ -232,7 +230,7 @@ static int spear_pwm_probe(struct platform_device *pdev) clk_disable(pc->clk); } - ret = devm_pwmchip_add(&pdev->dev, &pc->chip); + ret = devm_pwmchip_add(&pdev->dev, chip); if (ret < 0) return dev_err_probe(&pdev->dev, ret, "pwmchip_add() failed\n"); |