diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-14 10:32:00 +0100 |
|---|---|---|
| committer | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-19 11:04:12 +0100 |
| commit | f962b190fe20d626d4b9fdf782efcb93584c6164 (patch) | |
| tree | a7dd98601095d1c36a93d1c6cfe3d9c24fbb5036 /drivers/pwm | |
| parent | 28ecf9bd5ea24ca5ede01657afbd2551fa455f25 (diff) | |
| download | linux-f962b190fe20d626d4b9fdf782efcb93584c6164.tar.gz | |
pwm: microchip-core: Make use of devm_pwmchip_alloc() function
This prepares the pwm-microchip-core 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: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/c6660b655c1d4c9d79280030e24090a4a4c5dd8b.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Diffstat (limited to 'drivers/pwm')
| -rw-r--r-- | drivers/pwm/pwm-microchip-core.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/drivers/pwm/pwm-microchip-core.c b/drivers/pwm/pwm-microchip-core.c index c0c53968f3e9d..c1f2287b8e974 100644 --- a/drivers/pwm/pwm-microchip-core.c +++ b/drivers/pwm/pwm-microchip-core.c @@ -54,7 +54,6 @@ #define MCHPCOREPWM_TIMEOUT_MS 100u struct mchp_core_pwm_chip { - struct pwm_chip chip; struct clk *clk; void __iomem *base; struct mutex lock; /* protects the shared period */ @@ -65,7 +64,7 @@ struct mchp_core_pwm_chip { static inline struct mchp_core_pwm_chip *to_mchp_core_pwm(struct pwm_chip *chip) { - return container_of(chip, struct mchp_core_pwm_chip, chip); + return pwmchip_get_drvdata(chip); } static void mchp_core_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm, @@ -447,13 +446,15 @@ MODULE_DEVICE_TABLE(of, mchp_core_of_match); static int mchp_core_pwm_probe(struct platform_device *pdev) { + struct pwm_chip *chip; struct mchp_core_pwm_chip *mchp_core_pwm; struct resource *regs; int ret; - mchp_core_pwm = devm_kzalloc(&pdev->dev, sizeof(*mchp_core_pwm), GFP_KERNEL); - if (!mchp_core_pwm) - return -ENOMEM; + chip = devm_pwmchip_alloc(&pdev->dev, 16, sizeof(*mchp_core_pwm)); + if (IS_ERR(chip)) + return PTR_ERR(chip); + mchp_core_pwm = to_mchp_core_pwm(chip); mchp_core_pwm->base = devm_platform_get_and_ioremap_resource(pdev, 0, ®s); if (IS_ERR(mchp_core_pwm->base)) @@ -470,9 +471,7 @@ static int mchp_core_pwm_probe(struct platform_device *pdev) mutex_init(&mchp_core_pwm->lock); - mchp_core_pwm->chip.dev = &pdev->dev; - mchp_core_pwm->chip.ops = &mchp_core_pwm_ops; - mchp_core_pwm->chip.npwm = 16; + chip->ops = &mchp_core_pwm_ops; mchp_core_pwm->channel_enabled = readb_relaxed(mchp_core_pwm->base + MCHPCOREPWM_EN(0)); mchp_core_pwm->channel_enabled |= @@ -485,7 +484,7 @@ static int mchp_core_pwm_probe(struct platform_device *pdev) writel_relaxed(1U, mchp_core_pwm->base + MCHPCOREPWM_SYNC_UPD); mchp_core_pwm->update_timestamp = ktime_get(); - ret = devm_pwmchip_add(&pdev->dev, &mchp_core_pwm->chip); + ret = devm_pwmchip_add(&pdev->dev, chip); if (ret) return dev_err_probe(&pdev->dev, ret, "Failed to add pwmchip\n"); |