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pwm: sun4i: Make use of devm_pwmchip_alloc() function

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This prepares the pwm-sun4i 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.

Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/9d175b4e27878618cef2e75b6ecbf01ad5d18164.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
This commit is contained in:
Uwe Kleine-König
2024-02-14 10:32:54 +01:00
parent 2eb3ff5f4c
commit 362e3f883d
1 changed files with 10 additions and 11 deletions
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21
drivers/pwm/pwm-sun4i.c
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@@ -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);