@@ -20,7 +20,6 @@
#define LP3943_MAX_PERIOD 1600000
struct lp3943_pwm {
- struct pwm_chip chip;
struct lp3943 *lp3943;
struct lp3943_platform_data *pdata;
struct lp3943_pwm_map pwm_map[LP3943_NUM_PWMS];
@@ -28,7 +27,7 @@ struct lp3943_pwm {
static inline struct lp3943_pwm *to_lp3943_pwm(struct pwm_chip *chip)
{
- return container_of(chip, struct lp3943_pwm, chip);
+ return pwmchip_get_drvdata(chip);
}
static struct lp3943_pwm_map *
@@ -273,12 +272,14 @@ static int lp3943_pwm_parse_dt(struct device *dev,
static int lp3943_pwm_probe(struct platform_device *pdev)
{
struct lp3943 *lp3943 = dev_get_drvdata(pdev->dev.parent);
+ struct pwm_chip *chip;
struct lp3943_pwm *lp3943_pwm;
int ret;
- lp3943_pwm = devm_kzalloc(&pdev->dev, sizeof(*lp3943_pwm), GFP_KERNEL);
- if (!lp3943_pwm)
- return -ENOMEM;
+ chip = devm_pwmchip_alloc(&pdev->dev, LP3943_NUM_PWMS, sizeof(*lp3943_pwm));
+ if (IS_ERR(chip))
+ return PTR_ERR(chip);
+ lp3943_pwm = to_lp3943_pwm(chip);
lp3943_pwm->pdata = lp3943->pdata;
if (!lp3943_pwm->pdata) {
@@ -292,11 +293,9 @@ static int lp3943_pwm_probe(struct platform_device *pdev)
}
lp3943_pwm->lp3943 = lp3943;
- lp3943_pwm->chip.dev = &pdev->dev;
- lp3943_pwm->chip.ops = &lp3943_pwm_ops;
- lp3943_pwm->chip.npwm = LP3943_NUM_PWMS;
+ chip->ops = &lp3943_pwm_ops;
- return devm_pwmchip_add(&pdev->dev, &lp3943_pwm->chip);
+ return devm_pwmchip_add(&pdev->dev, chip);
}
#ifdef CONFIG_OF
This prepares the pwm-lp3943 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-lp3943.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-)