@@ -36,12 +36,11 @@
struct ep93xx_pwm {
void __iomem *base;
struct clk *clk;
- struct pwm_chip chip;
};
static inline struct ep93xx_pwm *to_ep93xx_pwm(struct pwm_chip *chip)
{
- return container_of(chip, struct ep93xx_pwm, chip);
+ return pwmchip_get_drvdata(chip);
}
static int ep93xx_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm)
@@ -163,12 +162,14 @@ static const struct pwm_ops ep93xx_pwm_ops = {
static int ep93xx_pwm_probe(struct platform_device *pdev)
{
+ struct pwm_chip *chip;
struct ep93xx_pwm *ep93xx_pwm;
int ret;
- ep93xx_pwm = devm_kzalloc(&pdev->dev, sizeof(*ep93xx_pwm), GFP_KERNEL);
- if (!ep93xx_pwm)
- return -ENOMEM;
+ chip = devm_pwmchip_alloc(&pdev->dev, 1, sizeof(*ep93xx_pwm));
+ if (IS_ERR(chip))
+ return PTR_ERR(chip);
+ ep93xx_pwm = to_ep93xx_pwm(chip);
ep93xx_pwm->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(ep93xx_pwm->base))
@@ -178,11 +179,9 @@ static int ep93xx_pwm_probe(struct platform_device *pdev)
if (IS_ERR(ep93xx_pwm->clk))
return PTR_ERR(ep93xx_pwm->clk);
- ep93xx_pwm->chip.dev = &pdev->dev;
- ep93xx_pwm->chip.ops = &ep93xx_pwm_ops;
- ep93xx_pwm->chip.npwm = 1;
+ chip->ops = &ep93xx_pwm_ops;
- ret = devm_pwmchip_add(&pdev->dev, &ep93xx_pwm->chip);
+ ret = devm_pwmchip_add(&pdev->dev, chip);
if (ret < 0)
return ret;
This prepares the pwm-ep93xx 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-ep93xx.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-)