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| author |  Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
| 2024-02-14 10:33:17 +0100 |
|---|---|---|
| committer | Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
| 2024-02-22 14:39:28 +0100 |
| commit | dda59d242477326968c322d930fe8f794e468c45 (patch) | |
| tree | bfa81074d993f63bac68a76b47545abd91232fcd /drivers/pwm | |
| parent | pwm: xilinx: Prepare removing pwm_chip from driver data (diff) | |
| download | linux-dda59d242477326968c322d930fe8f794e468c45.tar.gz linux-dda59d242477326968c322d930fe8f794e468c45.tar.bz2 linux-dda59d242477326968c322d930fe8f794e468c45.zip | |
pwm: xilinx: Make use of devm_pwmchip_alloc() function
This prepares the pwm-xilinx driver to further changes of the pwm core
outlined in the commit introducing devm_pwmchip_alloc(). There is no
intended semantical change and the driver should behave as before.
Link: https://lore.kernel.org/r/7cbc32771e94103b8c1c817cfdd613d7a2fc01b9.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Diffstat (limited to 'drivers/pwm')
| -rw-r--r-- | drivers/pwm/pwm-xilinx.c | 19 |
1 files changed, 5 insertions, 14 deletions
diff --git a/drivers/pwm/pwm-xilinx.c b/drivers/pwm/pwm-xilinx.c index 0ca79fe8c105..3a7deebb0d0c 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) @@ -215,7 +210,6 @@ static int xilinx_pwm_probe(struct platform_device *pdev) struct device_node *np = dev->of_node; struct xilinx_timer_priv *priv; struct pwm_chip *chip; - struct xilinx_pwm_device *xilinx_pwm; u32 pwm_cells, one_timer, width; void __iomem *regs; @@ -226,11 +220,10 @@ 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; - priv = &xilinx_pwm->priv; - chip = &xilinx_pwm->chip; + 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); @@ -280,9 +273,7 @@ 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); - chip->dev = dev; chip->ops = &xilinx_pwm_ops; - chip->npwm = 1; ret = pwmchip_add(chip); if (ret) { clk_rate_exclusive_put(priv->clk); |