diff options
Diffstat (limited to 'drivers/pwm/pwm-xilinx.c')
| -rw-r--r-- | drivers/pwm/pwm-xilinx.c | 34 |
1 files changed, 14 insertions, 20 deletions
diff --git a/drivers/pwm/pwm-xilinx.c b/drivers/pwm/pwm-xilinx.c index 5f3c2a6fed..3a7deebb0d 100644 --- a/drivers/pwm/pwm-xilinx.c +++ b/drivers/pwm/pwm-xilinx.c @@ -80,15 +80,10 @@ unsigned int xilinx_timer_get_period(struct xilinx_timer_priv *priv, #define TCSR_PWM_CLEAR (TCSR_MDT | TCSR_LOAD) #define TCSR_PWM_MASK (TCSR_PWM_SET | TCSR_PWM_CLEAR) -struct xilinx_pwm_device { - struct pwm_chip chip; - struct xilinx_timer_priv priv; -}; - static inline struct xilinx_timer_priv *xilinx_pwm_chip_to_priv(struct pwm_chip *chip) { - return &container_of(chip, struct xilinx_pwm_device, chip)->priv; + return pwmchip_get_drvdata(chip); } static bool xilinx_timer_pwm_enabled(u32 tcsr0, u32 tcsr1) @@ -214,7 +209,7 @@ static int xilinx_pwm_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct device_node *np = dev->of_node; struct xilinx_timer_priv *priv; - struct xilinx_pwm_device *xilinx_pwm; + struct pwm_chip *chip; u32 pwm_cells, one_timer, width; void __iomem *regs; @@ -225,11 +220,11 @@ static int xilinx_pwm_probe(struct platform_device *pdev) if (ret) return dev_err_probe(dev, ret, "could not read #pwm-cells\n"); - xilinx_pwm = devm_kzalloc(dev, sizeof(*xilinx_pwm), GFP_KERNEL); - if (!xilinx_pwm) - return -ENOMEM; - platform_set_drvdata(pdev, xilinx_pwm); - priv = &xilinx_pwm->priv; + chip = devm_pwmchip_alloc(dev, 1, sizeof(*priv)); + if (IS_ERR(chip)) + return PTR_ERR(chip); + priv = xilinx_pwm_chip_to_priv(chip); + platform_set_drvdata(pdev, chip); regs = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(regs)) @@ -278,10 +273,8 @@ static int xilinx_pwm_probe(struct platform_device *pdev) return dev_err_probe(dev, ret, "Clock enable failed\n"); clk_rate_exclusive_get(priv->clk); - xilinx_pwm->chip.dev = dev; - xilinx_pwm->chip.ops = &xilinx_pwm_ops; - xilinx_pwm->chip.npwm = 1; - ret = pwmchip_add(&xilinx_pwm->chip); + chip->ops = &xilinx_pwm_ops; + ret = pwmchip_add(chip); if (ret) { clk_rate_exclusive_put(priv->clk); clk_disable_unprepare(priv->clk); @@ -293,11 +286,12 @@ static int xilinx_pwm_probe(struct platform_device *pdev) static void xilinx_pwm_remove(struct platform_device *pdev) { - struct xilinx_pwm_device *xilinx_pwm = platform_get_drvdata(pdev); + struct pwm_chip *chip = platform_get_drvdata(pdev); + struct xilinx_timer_priv *priv = xilinx_pwm_chip_to_priv(chip); - pwmchip_remove(&xilinx_pwm->chip); - clk_rate_exclusive_put(xilinx_pwm->priv.clk); - clk_disable_unprepare(xilinx_pwm->priv.clk); + pwmchip_remove(chip); + clk_rate_exclusive_put(priv->clk); + clk_disable_unprepare(priv->clk); } static const struct of_device_id xilinx_pwm_of_match[] = { |