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pwm: mtk-disp: Make use of devm_pwmchip_alloc() function

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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.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/a70bf253dc41c61d9b901423710c97f235e372c3.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
This commit is contained in:
Uwe Kleine-König 2024-02-14 10:32:02 +01:00
parent f580fa6c84
commit ad0828825e
1 changed files with 8 additions and 9 deletions
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17
drivers/pwm/pwm-mtk-disp.c
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@ -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");