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pwm: omap-dmtimer: Make use of devm_pwmchip_alloc() function

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This prepares the pwm-omap-dmtimer 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/78d1448b0fd1136b010f629feffb9d89c853e472.1707900770.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 10:32:07 +01:00
parent 623a9594b2
commit f988b81963
1 changed files with 5 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/pwm/pwm-omap-dmtimer.c
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@ -53,13 +53,11 @@
/**
* struct pwm_omap_dmtimer_chip - Structure representing a pwm chip
* corresponding to omap dmtimer.
* @chip: PWM chip structure representing PWM controller
* @dm_timer: Pointer to omap dm timer.
* @pdata: Pointer to omap dm timer ops.
* @dm_timer_pdev: Pointer to omap dm timer platform device
*/
struct pwm_omap_dmtimer_chip {
struct pwm_chip chip;
/* Mutex to protect pwm apply state */
struct omap_dm_timer *dm_timer;
const struct omap_dm_timer_ops *pdata;
@ -69,7 +67,7 @@ struct pwm_omap_dmtimer_chip {
static inline struct pwm_omap_dmtimer_chip *
to_pwm_omap_dmtimer_chip(struct pwm_chip *chip)
{
return container_of(chip, struct pwm_omap_dmtimer_chip, chip);
return pwmchip_get_drvdata(chip);
}
/**
@ -369,12 +367,12 @@ static int pwm_omap_dmtimer_probe(struct platform_device *pdev)
goto err_request_timer;
}
omap = devm_kzalloc(&pdev->dev, sizeof(*omap), GFP_KERNEL);
if (!omap) {
ret = -ENOMEM;
chip = devm_pwmchip_alloc(&pdev->dev, 1, sizeof(*omap));
if (IS_ERR(chip)) {
ret = PTR_ERR(chip);
goto err_alloc_omap;
}
chip = &omap->chip;
omap = to_pwm_omap_dmtimer_chip(chip);
omap->pdata = pdata;
omap->dm_timer = dm_timer;
@ -394,9 +392,7 @@ static int pwm_omap_dmtimer_probe(struct platform_device *pdev)
if (!of_property_read_u32(pdev->dev.of_node, "ti,clock-source", &v))
omap->pdata->set_source(omap->dm_timer, v);
chip->dev = &pdev->dev;
chip->ops = &pwm_omap_dmtimer_ops;
chip->npwm = 1;
ret = pwmchip_add(chip);
if (ret < 0) {