@@ -102,7 +102,6 @@ struct meson_pwm_data {
};
struct meson_pwm {
- struct pwm_chip chip;
const struct meson_pwm_data *data;
struct meson_pwm_channel channels[MESON_NUM_PWMS];
void __iomem *base;
@@ -115,7 +114,7 @@ struct meson_pwm {
static inline struct meson_pwm *to_meson_pwm(struct pwm_chip *chip)
{
- return container_of(chip, struct meson_pwm, chip);
+ return pwmchip_get_drvdata(chip);
}
static int meson_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm)
@@ -529,29 +528,29 @@ static int meson_pwm_init_channels(struct pwm_chip *chip)
static int meson_pwm_probe(struct platform_device *pdev)
{
+ struct pwm_chip *chip;
struct meson_pwm *meson;
int err;
- meson = devm_kzalloc(&pdev->dev, sizeof(*meson), GFP_KERNEL);
- if (!meson)
- return -ENOMEM;
+ chip = devm_pwmchip_alloc(&pdev->dev, MESON_NUM_PWMS, sizeof(*meson));
+ if (IS_ERR(chip))
+ return PTR_ERR(chip);
+ meson = to_meson_pwm(chip);
meson->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(meson->base))
return PTR_ERR(meson->base);
spin_lock_init(&meson->lock);
- meson->chip.dev = &pdev->dev;
- meson->chip.ops = &meson_pwm_ops;
- meson->chip.npwm = MESON_NUM_PWMS;
+ chip->ops = &meson_pwm_ops;
meson->data = of_device_get_match_data(&pdev->dev);
- err = meson_pwm_init_channels(&meson->chip);
+ err = meson_pwm_init_channels(chip);
if (err < 0)
return err;
- err = devm_pwmchip_add(&pdev->dev, &meson->chip);
+ err = devm_pwmchip_add(&pdev->dev, chip);
if (err < 0)
return dev_err_probe(&pdev->dev, err,
"failed to register PWM chip\n");
This prepares the pwm-meson 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-meson.c | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-)