@@ -38,14 +38,13 @@
#define RCAR_PWMCNT_PH0_SHIFT 0
struct rcar_pwm_chip {
- struct pwm_chip chip;
void __iomem *base;
struct clk *clk;
};
static inline struct rcar_pwm_chip *to_rcar_pwm_chip(struct pwm_chip *chip)
{
- return container_of(chip, struct rcar_pwm_chip, chip);
+ return pwmchip_get_drvdata(chip);
}
static void rcar_pwm_write(struct rcar_pwm_chip *rp, u32 data,
@@ -202,12 +201,14 @@ static const struct pwm_ops rcar_pwm_ops = {
static int rcar_pwm_probe(struct platform_device *pdev)
{
+ struct pwm_chip *chip;
struct rcar_pwm_chip *rcar_pwm;
int ret;
- rcar_pwm = devm_kzalloc(&pdev->dev, sizeof(*rcar_pwm), GFP_KERNEL);
- if (rcar_pwm == NULL)
+ chip = devm_pwmchip_alloc(&pdev->dev, 1, sizeof(*rcar_pwm));
+ if (chip == NULL)
return -ENOMEM;
+ rcar_pwm = to_rcar_pwm_chip(chip);
rcar_pwm->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(rcar_pwm->base))
@@ -219,15 +220,13 @@ static int rcar_pwm_probe(struct platform_device *pdev)
return PTR_ERR(rcar_pwm->clk);
}
- platform_set_drvdata(pdev, rcar_pwm);
+ platform_set_drvdata(pdev, chip);
- rcar_pwm->chip.dev = &pdev->dev;
- rcar_pwm->chip.ops = &rcar_pwm_ops;
- rcar_pwm->chip.npwm = 1;
+ chip->ops = &rcar_pwm_ops;
pm_runtime_enable(&pdev->dev);
- ret = pwmchip_add(&rcar_pwm->chip);
+ ret = pwmchip_add(chip);
if (ret < 0) {
dev_err(&pdev->dev, "failed to register PWM chip: %d\n", ret);
pm_runtime_disable(&pdev->dev);
@@ -239,9 +238,9 @@ static int rcar_pwm_probe(struct platform_device *pdev)
static void rcar_pwm_remove(struct platform_device *pdev)
{
- struct rcar_pwm_chip *rcar_pwm = platform_get_drvdata(pdev);
+ struct pwm_chip *chip = platform_get_drvdata(pdev);
- pwmchip_remove(&rcar_pwm->chip);
+ pwmchip_remove(chip);
pm_runtime_disable(&pdev->dev);
}
This prepares the pwm-rcar 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. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> --- drivers/pwm/pwm-rcar.c | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-)