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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2024-02-14 12:32:22 +0300
committerUwe Kleine-König <u.kleine-koenig@pengutronix.de>2024-02-19 13:04:14 +0300
commita629a77e9dfb94f98b3b450cc0309cec1b594157 (patch)
tree1d541cc6cd81e6492d62f4afa61b4afdc076fe41 /drivers/pwm/pwm-rz-mtu3.c
parentdfec83b4fe455224ccd9117dbe3bb1c0c79cbf66 (diff)
downloadlinux-a629a77e9dfb94f98b3b450cc0309cec1b594157.tar.xz
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/pwm-rz-mtu3.c')
-rw-r--r--drivers/pwm/pwm-rz-mtu3.c15
1 files changed, 6 insertions, 9 deletions
diff --git a/drivers/pwm/pwm-rz-mtu3.c b/drivers/pwm/pwm-rz-mtu3.c
index a129ae4ef338..ab39bd37edaf 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");