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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-14 10:31:11 +0100 |
|---|---|---|
| committer | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-15 12:59:20 +0100 |
| commit | 8e87e3dcb298d467e4f69c8c2565a3f9b836232c (patch) | |
| tree | 120a797be7f663b6a0861237783b93301a88e5c1 /drivers/pwm/pwm-clk.c | |
| parent | fc6549a9368302bb029058aa049cc472989e2735 (diff) | |
| download | linux-8e87e3dcb298d467e4f69c8c2565a3f9b836232c.tar.gz linux-8e87e3dcb298d467e4f69c8c2565a3f9b836232c.tar.bz2 linux-8e87e3dcb298d467e4f69c8c2565a3f9b836232c.zip | |
pwm: clk: Make use of devm_pwmchip_alloc() function
This prepares the pwm-clk 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.
Also convert the to_pwm_clk_chip() helper macro to a static inline to
get some type safety.
Link: https://lore.kernel.org/r/c02ccc955fe7a0aec7ce0ccaf5cd2bd902ae687f.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Diffstat (limited to 'drivers/pwm/pwm-clk.c')
| -rw-r--r-- | drivers/pwm/pwm-clk.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/pwm/pwm-clk.c b/drivers/pwm/pwm-clk.c index aef35d9a6a61..c19a482d7e28 100644 --- a/drivers/pwm/pwm-clk.c +++ b/drivers/pwm/pwm-clk.c @@ -28,12 +28,14 @@ #include <linux/pwm.h> struct pwm_clk_chip { - struct pwm_chip chip; struct clk *clk; bool clk_enabled; }; -#define to_pwm_clk_chip(_chip) container_of(_chip, struct pwm_clk_chip, chip) +static inline struct pwm_clk_chip *to_pwm_clk_chip(struct pwm_chip *chip) +{ + return pwmchip_get_drvdata(chip); +} static int pwm_clk_apply(struct pwm_chip *chip, struct pwm_device *pwm, const struct pwm_state *state) @@ -85,19 +87,17 @@ static int pwm_clk_probe(struct platform_device *pdev) struct pwm_clk_chip *pcchip; int ret; - pcchip = devm_kzalloc(&pdev->dev, sizeof(*pcchip), GFP_KERNEL); - if (!pcchip) - return -ENOMEM; - chip = &pcchip->chip; + chip = devm_pwmchip_alloc(&pdev->dev, 1, sizeof(*pcchip)); + if (IS_ERR(chip)) + return PTR_ERR(chip); + pcchip = to_pwm_clk_chip(chip); pcchip->clk = devm_clk_get_prepared(&pdev->dev, NULL); if (IS_ERR(pcchip->clk)) return dev_err_probe(&pdev->dev, PTR_ERR(pcchip->clk), "Failed to get clock\n"); - chip->dev = &pdev->dev; chip->ops = &pwm_clk_ops; - chip->npwm = 1; ret = pwmchip_add(chip); if (ret < 0) |