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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2024-02-14 12:32:32 +0300
committerUwe Kleine-König <u.kleine-koenig@pengutronix.de>2024-02-19 13:04:15 +0300
commit554d9acae42b3ee49f4861ef036733cb7afeead9 (patch)
tree3bc16df84781655198b3c3bf5e55313ce0d82352
parentc4f4af7d792c74d3cbae3a4bc16845bb3e80e2f9 (diff)
downloadlinux-554d9acae42b3ee49f4861ef036733cb7afeead9.tar.xz
pwm: sifive: Make use of devm_pwmchip_alloc() function
This prepares the pwm-sifive 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/30a4cacafe2c323f2531dd1c1126f0bf0fe5e03c.1707900770.git.u.kleine-koenig@pengutronix.de Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
-rw-r--r--drivers/pwm/pwm-sifive.c14
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/pwm/pwm-sifive.c b/drivers/pwm/pwm-sifive.c
index 6abe91d2f21c..ed7957cc51fd 100644
--- a/drivers/pwm/pwm-sifive.c
+++ b/drivers/pwm/pwm-sifive.c
@@ -41,7 +41,6 @@
#define PWM_SIFIVE_DEFAULT_PERIOD 10000000
struct pwm_sifive_ddata {
- struct pwm_chip chip;
struct device *parent;
struct mutex lock; /* lock to protect user_count and approx_period */
struct notifier_block notifier;
@@ -55,7 +54,7 @@ struct pwm_sifive_ddata {
static inline
struct pwm_sifive_ddata *pwm_sifive_chip_to_ddata(struct pwm_chip *chip)
{
- return container_of(chip, struct pwm_sifive_ddata, chip);
+ return pwmchip_get_drvdata(chip);
}
static int pwm_sifive_request(struct pwm_chip *chip, struct pwm_device *pwm)
@@ -231,15 +230,14 @@ static int pwm_sifive_probe(struct platform_device *pdev)
u32 val;
unsigned int enabled_pwms = 0, enabled_clks = 1;
- ddata = devm_kzalloc(dev, sizeof(*ddata), GFP_KERNEL);
- if (!ddata)
- return -ENOMEM;
+ chip = devm_pwmchip_alloc(dev, 4, sizeof(*ddata));
+ if (IS_ERR(chip))
+ return PTR_ERR(chip);
+ ddata = pwm_sifive_chip_to_ddata(chip);
+ ddata->parent = dev;
mutex_init(&ddata->lock);
- chip = &ddata->chip;
- chip->dev = ddata->parent = dev;
chip->ops = &pwm_sifive_ops;
- chip->npwm = 4;
ddata->regs = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(ddata->regs))