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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-14 10:32:32 +0100 |
|---|---|---|
| committer | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-19 11:04:15 +0100 |
| commit | 554d9acae42b3ee49f4861ef036733cb7afeead9 (patch) | |
| tree | 3bc16df84781655198b3c3bf5e55313ce0d82352 /drivers/pwm/pwm-sifive.c | |
| parent | c4f4af7d792c74d3cbae3a4bc16845bb3e80e2f9 (diff) | |
| download | linux-stable-554d9acae42b3ee49f4861ef036733cb7afeead9.tar.gz linux-stable-554d9acae42b3ee49f4861ef036733cb7afeead9.tar.bz2 linux-stable-554d9acae42b3ee49f4861ef036733cb7afeead9.zip | |
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>
Diffstat (limited to 'drivers/pwm/pwm-sifive.c')
| -rw-r--r-- | drivers/pwm/pwm-sifive.c | 14 |
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)) |