@@ -42,7 +42,6 @@ struct mtk_pwm_data {
};
struct mtk_disp_pwm {
- struct pwm_chip chip;
const struct mtk_pwm_data *data;
struct clk *clk_main;
struct clk *clk_mm;
@@ -52,7 +51,7 @@ struct mtk_disp_pwm {
static inline struct mtk_disp_pwm *to_mtk_disp_pwm(struct pwm_chip *chip)
{
- return container_of(chip, struct mtk_disp_pwm, chip);
+ return pwmchip_get_drvdata(chip);
}
static void mtk_disp_pwm_update_bits(struct mtk_disp_pwm *mdp, u32 offset,
@@ -231,12 +230,14 @@ static const struct pwm_ops mtk_disp_pwm_ops = {
static int mtk_disp_pwm_probe(struct platform_device *pdev)
{
+ struct pwm_chip *chip;
struct mtk_disp_pwm *mdp;
int ret;
- mdp = devm_kzalloc(&pdev->dev, sizeof(*mdp), GFP_KERNEL);
- if (!mdp)
- return -ENOMEM;
+ chip = devm_pwmchip_alloc(&pdev->dev, 1, sizeof(*mdp));
+ if (IS_ERR(chip))
+ return PTR_ERR(chip);
+ mdp = to_mtk_disp_pwm(chip);
mdp->data = of_device_get_match_data(&pdev->dev);
@@ -254,11 +255,9 @@ static int mtk_disp_pwm_probe(struct platform_device *pdev)
return dev_err_probe(&pdev->dev, PTR_ERR(mdp->clk_mm),
"Failed to get mm clock\n");
- mdp->chip.dev = &pdev->dev;
- mdp->chip.ops = &mtk_disp_pwm_ops;
- mdp->chip.npwm = 1;
+ chip->ops = &mtk_disp_pwm_ops;
- ret = devm_pwmchip_add(&pdev->dev, &mdp->chip);
+ ret = devm_pwmchip_add(&pdev->dev, chip);
if (ret < 0)
return dev_err_probe(&pdev->dev, ret, "pwmchip_add() failed\n");
This prepares the pwm-mtk-disp 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-mtk-disp.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-)