diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-14 10:32:22 +0100 |
|---|---|---|
| committer | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-19 11:04:14 +0100 |
| commit | a629a77e9dfb94f98b3b450cc0309cec1b594157 (patch) | |
| tree | 1d541cc6cd81e6492d62f4afa61b4afdc076fe41 /drivers/pwm | |
| parent | dfec83b4fe455224ccd9117dbe3bb1c0c79cbf66 (diff) | |
| download | linux-a629a77e9dfb94f98b3b450cc0309cec1b594157.tar.gz | |
pwm: rz-mtu3: Make use of devm_pwmchip_alloc() function
This prepares the pwm-rz-mtu3 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/b05ffb9bcaf4ddb6305f8505715a5542805e3227.1707900770.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-rz-mtu3.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/drivers/pwm/pwm-rz-mtu3.c b/drivers/pwm/pwm-rz-mtu3.c index a129ae4ef338cb..ab39bd37edafc1 100644 --- a/drivers/pwm/pwm-rz-mtu3.c +++ b/drivers/pwm/pwm-rz-mtu3.c @@ -61,7 +61,6 @@ struct rz_mtu3_pwm_channel { /** * struct rz_mtu3_pwm_chip - MTU3 pwm private data * - * @chip: MTU3 pwm chip data * @clk: MTU3 module clock * @lock: Lock to prevent concurrent access for usage count * @rate: MTU3 clock rate @@ -72,7 +71,6 @@ struct rz_mtu3_pwm_channel { */ struct rz_mtu3_pwm_chip { - struct pwm_chip chip; struct clk *clk; struct mutex lock; unsigned long rate; @@ -92,7 +90,7 @@ static const struct rz_mtu3_channel_io_map channel_map[] = { static inline struct rz_mtu3_pwm_chip *to_rz_mtu3_pwm_chip(struct pwm_chip *chip) { - return container_of(chip, struct rz_mtu3_pwm_chip, chip); + return pwmchip_get_drvdata(chip); } static void rz_mtu3_pwm_read_tgr_registers(struct rz_mtu3_pwm_channel *priv, @@ -481,10 +479,11 @@ static int rz_mtu3_pwm_probe(struct platform_device *pdev) unsigned int i, j = 0; int ret; - rz_mtu3_pwm = devm_kzalloc(&pdev->dev, sizeof(*rz_mtu3_pwm), GFP_KERNEL); - if (!rz_mtu3_pwm) - return -ENOMEM; - chip = &rz_mtu3_pwm->chip; + chip = devm_pwmchip_alloc(&pdev->dev, RZ_MTU3_MAX_PWM_CHANNELS, + sizeof(*rz_mtu3_pwm)); + if (IS_ERR(chip)) + return PTR_ERR(chip); + rz_mtu3_pwm = to_rz_mtu3_pwm_chip(chip); rz_mtu3_pwm->clk = parent_ddata->clk; @@ -519,14 +518,12 @@ static int rz_mtu3_pwm_probe(struct platform_device *pdev) pm_runtime_set_active(&pdev->dev); pm_runtime_enable(&pdev->dev); - chip->dev = &pdev->dev; ret = devm_add_action_or_reset(&pdev->dev, rz_mtu3_pwm_pm_disable, chip); if (ret < 0) return ret; chip->ops = &rz_mtu3_pwm_ops; - chip->npwm = RZ_MTU3_MAX_PWM_CHANNELS; ret = devm_pwmchip_add(&pdev->dev, chip); if (ret) return dev_err_probe(&pdev->dev, ret, "failed to add PWM chip\n"); |