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@xxxxxxxxxxxxxxx>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
---
drivers/pwm/pwm-jz4740.c | 18 ++++++++----------
1 file changed, 8 insertions(+), 10 deletions(-)
diff --git a/drivers/pwm/pwm-jz4740.c b/drivers/pwm/pwm-jz4740.c
index 36763134cd87..5a7cc41df77e 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)
@@ -222,6 +221,7 @@ 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;
@@ -229,10 +229,10 @@ 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)) {
@@ -240,11 +240,9 @@ 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 = {
--
2.42.0
