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pwm: keembay: Make use of devm_pwmchip_alloc() function

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This prepares the pwm-keembay 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/f65c27bf0a1f9ba4e5dbb115ff628860163ff8e0.1707900770.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 10:31:45 +01:00
parent 5d0237a7b0
commit 15527ec252
1 changed files with 8 additions and 9 deletions
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17
drivers/pwm/pwm-keembay.c
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@ -36,7 +36,6 @@
#define KMB_PWM_HIGHLOW_OFFSET(ch) (0x20 + 4 * (ch))
struct keembay_pwm {
struct pwm_chip chip;
struct device *dev;
struct clk *clk;
void __iomem *base;
@ -44,7 +43,7 @@ struct keembay_pwm {
static inline struct keembay_pwm *to_keembay_pwm_dev(struct pwm_chip *chip)
{
return container_of(chip, struct keembay_pwm, chip);
return pwmchip_get_drvdata(chip);
}
static void keembay_clk_unprepare(void *data)
@ -185,12 +184,14 @@ static const struct pwm_ops keembay_pwm_ops = {
static int keembay_pwm_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct pwm_chip *chip;
struct keembay_pwm *priv;
int ret;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
chip = devm_pwmchip_alloc(dev, KMB_TOTAL_PWM_CHANNELS, sizeof(*priv));
if (IS_ERR(chip))
return PTR_ERR(chip);
priv = to_keembay_pwm_dev(chip);
priv->clk = devm_clk_get(dev, NULL);
if (IS_ERR(priv->clk))
@ -204,11 +205,9 @@ static int keembay_pwm_probe(struct platform_device *pdev)
if (ret)
return ret;
priv->chip.dev = dev;
priv->chip.ops = &keembay_pwm_ops;
priv->chip.npwm = KMB_TOTAL_PWM_CHANNELS;
chip->ops = &keembay_pwm_ops;
ret = devm_pwmchip_add(dev, &priv->chip);
ret = devm_pwmchip_add(dev, chip);
if (ret)
return dev_err_probe(dev, ret, "Failed to add PWM chip\n");