diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-14 12:33:15 +0300 |
|---|---|---|
| committer | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-22 16:39:27 +0300 |
| commit | ae8635e99c5cc752e204ab9ee8869ec54a9223f0 (patch) | |
| tree | 88f198301166053a64de3a315b2cdbddb9c3ca7d | |
| parent | 68e34b3e6629b747c1d4ec1813455221a56d3b4a (diff) | |
| download | linux-ae8635e99c5cc752e204ab9ee8869ec54a9223f0.tar.xz | |
pwm: vt8500: Make use of devm_pwmchip_alloc() function
This prepares the pwm-vt8500 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.
Also convert the to_vt8500_chip() helper macro to a static inline to
get some type safety.
Link: https://lore.kernel.org/r/b203c4448db23ebad1165b7bce43ac41468c4e89.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
| -rw-r--r-- | drivers/pwm/pwm-vt8500.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/pwm/pwm-vt8500.c b/drivers/pwm/pwm-vt8500.c index fb4dbc88b0a3..016c82d65527 100644 --- a/drivers/pwm/pwm-vt8500.c +++ b/drivers/pwm/pwm-vt8500.c @@ -45,12 +45,14 @@ #define STATUS_ALL_UPDATE 0x0F struct vt8500_chip { - struct pwm_chip chip; void __iomem *base; struct clk *clk; }; -#define to_vt8500_chip(chip) container_of(chip, struct vt8500_chip, chip) +static inline struct vt8500_chip *to_vt8500_chip(struct pwm_chip *chip) +{ + return pwmchip_get_drvdata(chip); +} #define msecs_to_loops(t) (loops_per_jiffy / 1000 * HZ * t) static inline void vt8500_pwm_busy_wait(struct pwm_chip *chip, int nr, u8 bitmask) @@ -240,14 +242,12 @@ static int vt8500_pwm_probe(struct platform_device *pdev) if (!np) return dev_err_probe(&pdev->dev, -EINVAL, "invalid devicetree node\n"); - vt8500 = devm_kzalloc(&pdev->dev, sizeof(*vt8500), GFP_KERNEL); - if (vt8500 == NULL) - return -ENOMEM; + chip = devm_pwmchip_alloc(&pdev->dev, VT8500_NR_PWMS, sizeof(*vt8500)); + if (IS_ERR(chip)) + return PTR_ERR(chip); + vt8500 = to_vt8500_chip(chip); - chip = &vt8500->chip; - chip->dev = &pdev->dev; chip->ops = &vt8500_pwm_ops; - chip->npwm = VT8500_NR_PWMS; vt8500->clk = devm_clk_get_prepared(&pdev->dev, NULL); if (IS_ERR(vt8500->clk)) |