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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-14 10:32:28 +0100 |
|---|---|---|
| committer | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-19 11:04:14 +0100 |
| commit | 6727fdf748971ac42cd9357af9e308ddcca2818b (patch) | |
| tree | 231f8a270b6b03c3af97702d106ee7fcf0d26e31 /drivers/pwm/pwm-samsung.c | |
| parent | f83c29f43d593c0d4b5132b2004ef28599fad801 (diff) | |
| download | lwn-6727fdf748971ac42cd9357af9e308ddcca2818b.tar.gz lwn-6727fdf748971ac42cd9357af9e308ddcca2818b.zip | |
pwm: samsung: Make use of devm_pwmchip_alloc() function
This prepares the pwm-samsung 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/f188e68bdea8d5a24277a10c8c9a6350a9c246ac.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Diffstat (limited to 'drivers/pwm/pwm-samsung.c')
| -rw-r--r-- | drivers/pwm/pwm-samsung.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/drivers/pwm/pwm-samsung.c b/drivers/pwm/pwm-samsung.c index d3dc9b5b80d6..efb60c9f0cb3 100644 --- a/drivers/pwm/pwm-samsung.c +++ b/drivers/pwm/pwm-samsung.c @@ -69,7 +69,6 @@ struct samsung_pwm_channel { /** * struct samsung_pwm_chip - private data of PWM chip - * @chip: generic PWM chip * @variant: local copy of hardware variant data * @inverter_mask: inverter status for all channels - one bit per channel * @disabled_mask: disabled status for all channels - one bit per channel @@ -80,7 +79,6 @@ struct samsung_pwm_channel { * @channel: per channel driver data */ struct samsung_pwm_chip { - struct pwm_chip chip; struct samsung_pwm_variant variant; u8 inverter_mask; u8 disabled_mask; @@ -110,7 +108,7 @@ static DEFINE_SPINLOCK(samsung_pwm_lock); static inline struct samsung_pwm_chip *to_samsung_pwm_chip(struct pwm_chip *chip) { - return container_of(chip, struct samsung_pwm_chip, chip); + return pwmchip_get_drvdata(chip); } static inline unsigned int to_tcon_channel(unsigned int channel) @@ -549,14 +547,12 @@ static int pwm_samsung_probe(struct platform_device *pdev) unsigned int chan; int ret; - our_chip = devm_kzalloc(&pdev->dev, sizeof(*our_chip), GFP_KERNEL); - if (our_chip == NULL) - return -ENOMEM; + chip = devm_pwmchip_alloc(&pdev->dev, SAMSUNG_PWM_NUM, sizeof(*our_chip)); + if (IS_ERR(chip)) + return PTR_ERR(chip); + our_chip = to_samsung_pwm_chip(chip); - chip = &our_chip->chip; - chip->dev = &pdev->dev; chip->ops = &pwm_samsung_ops; - chip->npwm = SAMSUNG_PWM_NUM; our_chip->inverter_mask = BIT(SAMSUNG_PWM_NUM) - 1; if (IS_ENABLED(CONFIG_OF) && pdev->dev.of_node) { |