diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-14 12:32:37 +0300 |
|---|---|---|
| committer | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-22 16:39:10 +0300 |
| commit | f2075c0b1a8f8285b72d2dc800345e854d3a711b (patch) | |
| tree | aa4ece711620ddbcd1a8f41c2ace75fa55bc4dfc /drivers/pwm/pwm-sprd.c | |
| parent | aac1b805a61ced530b4d427354a205b4bbff69c6 (diff) | |
| download | linux-f2075c0b1a8f8285b72d2dc800345e854d3a711b.tar.xz | |
pwm: sprd: Make use of devm_pwmchip_alloc() function
This prepares the pwm-sprd 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.
Tested-by: Chunyan Zhang <zhang.lyra@gmail.com>
Link: https://lore.kernel.org/r/543213f44686ee72d8f88897bf2ca616e837ae44.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Diffstat (limited to 'drivers/pwm/pwm-sprd.c')
| -rw-r--r-- | drivers/pwm/pwm-sprd.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/drivers/pwm/pwm-sprd.c b/drivers/pwm/pwm-sprd.c index a38f50c3dc00..4c76ca5e4cdd 100644 --- a/drivers/pwm/pwm-sprd.c +++ b/drivers/pwm/pwm-sprd.c @@ -34,13 +34,12 @@ struct sprd_pwm_chn { struct sprd_pwm_chip { void __iomem *base; - struct pwm_chip chip; struct sprd_pwm_chn chn[SPRD_PWM_CHN_NUM]; }; static inline struct sprd_pwm_chip* sprd_pwm_from_chip(struct pwm_chip *chip) { - return container_of(chip, struct sprd_pwm_chip, chip); + return pwmchip_get_drvdata(chip); } /* @@ -248,6 +247,7 @@ static int sprd_pwm_clk_init(struct device *dev, static int sprd_pwm_probe(struct platform_device *pdev) { + struct pwm_chip *chip; struct sprd_pwm_chip *spc; struct sprd_pwm_chn chn[SPRD_PWM_CHN_NUM]; int ret, npwm; @@ -256,9 +256,10 @@ static int sprd_pwm_probe(struct platform_device *pdev) if (npwm < 0) return npwm; - spc = devm_kzalloc(&pdev->dev, sizeof(*spc), GFP_KERNEL); - if (!spc) - return -ENOMEM; + chip = devm_pwmchip_alloc(&pdev->dev, npwm, sizeof(*spc)); + if (IS_ERR(chip)) + return PTR_ERR(chip); + spc = sprd_pwm_from_chip(chip); spc->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(spc->base)) @@ -266,11 +267,9 @@ static int sprd_pwm_probe(struct platform_device *pdev) memcpy(spc->chn, chn, sizeof(chn)); - spc->chip.dev = &pdev->dev; - spc->chip.ops = &sprd_pwm_ops; - spc->chip.npwm = npwm; + chip->ops = &sprd_pwm_ops; - ret = devm_pwmchip_add(&pdev->dev, &spc->chip); + ret = devm_pwmchip_add(&pdev->dev, chip); if (ret) dev_err(&pdev->dev, "failed to add PWM chip\n"); |