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pwm: rz-mtu3: Make use of devm_pwmchip_alloc() function

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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>
This commit is contained in:
Uwe Kleine-König 2024-02-14 10:32:22 +01:00
parent dfec83b4fe
commit a629a77e9d
1 changed files with 6 additions and 9 deletions
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15
drivers/pwm/pwm-rz-mtu3.c
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@ -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");