diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-14 10:31:23 +0100 |
|---|---|---|
| committer | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-19 11:04:08 +0100 |
| commit | 3f681ff7ba799829c918140a42833ca48878d3f9 (patch) | |
| tree | 1cd2c391ab393d0431361dd45b06b74daae7daa6 | |
| parent | pwm: ep93xx: Make use of pwmchip_parent() accessor (diff) | |
| download | linux-3f681ff7ba799829c918140a42833ca48878d3f9.tar.xz linux-3f681ff7ba799829c918140a42833ca48878d3f9.zip | |
pwm: ep93xx: Make use of devm_pwmchip_alloc() function
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.
Link: https://lore.kernel.org/r/9420eeca1eb18fada4a15c897f60696b7b22b532.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
| -rw-r--r-- | drivers/pwm/pwm-ep93xx.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/drivers/pwm/pwm-ep93xx.c b/drivers/pwm/pwm-ep93xx.c index e4c3546a61c8..666f2954133c 100644 --- a/drivers/pwm/pwm-ep93xx.c +++ b/drivers/pwm/pwm-ep93xx.c @@ -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; |