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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2024-02-14 10:31:23 +0100
committerUwe Kleine-König <u.kleine-koenig@pengutronix.de>2024-02-19 11:04:08 +0100
commit3f681ff7ba799829c918140a42833ca48878d3f9 (patch)
tree1cd2c391ab393d0431361dd45b06b74daae7daa6 /drivers/pwm/pwm-ep93xx.c
parentpwm: ep93xx: Make use of pwmchip_parent() accessor (diff)
downloadlinux-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>
Diffstat (limited to 'drivers/pwm/pwm-ep93xx.c')
-rw-r--r--drivers/pwm/pwm-ep93xx.c17
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;