diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-14 12:31:44 +0300 |
|---|---|---|
| committer | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-19 13:04:10 +0300 |
| commit | 5d0237a7b0859fbe5793e45f6c755aa8fca1c602 (patch) | |
| tree | 4893b905945a25f6e3d9a1936baa01be572db8a7 /drivers/pwm/pwm-jz4740.c | |
| parent | 4eeb33229c322a85e45cec084a9faffb961e4e87 (diff) | |
| download | linux-5d0237a7b0859fbe5793e45f6c755aa8fca1c602.tar.xz | |
pwm: jz4740: Make use of devm_pwmchip_alloc() function
This prepares the pwm-jz4740 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.
Acked-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/14a081c097b4e7c7f346ca6557ece8d16ad5749d.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Diffstat (limited to 'drivers/pwm/pwm-jz4740.c')
| -rw-r--r-- | drivers/pwm/pwm-jz4740.c | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/drivers/pwm/pwm-jz4740.c b/drivers/pwm/pwm-jz4740.c index 4d39f61b86ff..da4bf543d357 100644 --- a/drivers/pwm/pwm-jz4740.c +++ b/drivers/pwm/pwm-jz4740.c @@ -25,14 +25,13 @@ struct soc_info { }; struct jz4740_pwm_chip { - struct pwm_chip chip; struct regmap *map; struct clk *clk[]; }; static inline struct jz4740_pwm_chip *to_jz4740(struct pwm_chip *chip) { - return container_of(chip, struct jz4740_pwm_chip, chip); + return pwmchip_get_drvdata(chip); } static bool jz4740_pwm_can_use_chn(struct pwm_chip *chip, unsigned int channel) @@ -224,6 +223,7 @@ static const struct pwm_ops jz4740_pwm_ops = { static int jz4740_pwm_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; + struct pwm_chip *chip; struct jz4740_pwm_chip *jz; const struct soc_info *info; @@ -231,10 +231,10 @@ static int jz4740_pwm_probe(struct platform_device *pdev) if (!info) return -EINVAL; - jz = devm_kzalloc(dev, struct_size(jz, clk, info->num_pwms), - GFP_KERNEL); - if (!jz) - return -ENOMEM; + chip = devm_pwmchip_alloc(dev, info->num_pwms, struct_size(jz, clk, info->num_pwms)); + if (IS_ERR(chip)) + return PTR_ERR(chip); + jz = to_jz4740(chip); jz->map = device_node_to_regmap(dev->parent->of_node); if (IS_ERR(jz->map)) { @@ -242,11 +242,9 @@ static int jz4740_pwm_probe(struct platform_device *pdev) return PTR_ERR(jz->map); } - jz->chip.dev = dev; - jz->chip.ops = &jz4740_pwm_ops; - jz->chip.npwm = info->num_pwms; + chip->ops = &jz4740_pwm_ops; - return devm_pwmchip_add(dev, &jz->chip); + return devm_pwmchip_add(dev, chip); } static const struct soc_info jz4740_soc_info = { |