diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-14 10:31:02 +0100 |
|---|---|---|
| committer | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-15 12:59:20 +0100 |
| commit | af184748c6807e95ce51388a5b162ad8fdebe04f (patch) | |
| tree | a16d0202aa8daed43a63adb51f4413332f9e6e4f /drivers/pwm/pwm-atmel-tcb.c | |
| parent | dfab73eb282969725f0c327652fd4d9c6f208e2c (diff) | |
| download | lwn-af184748c6807e95ce51388a5b162ad8fdebe04f.tar.gz lwn-af184748c6807e95ce51388a5b162ad8fdebe04f.zip | |
pwm: atmel-tcb: Make use of devm_pwmchip_alloc() function
This prepares the pwm-atmel-tcb 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/c845e6c9d27c8a4037755b2ae702b0039947a3c1.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Diffstat (limited to 'drivers/pwm/pwm-atmel-tcb.c')
| -rw-r--r-- | drivers/pwm/pwm-atmel-tcb.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/pwm/pwm-atmel-tcb.c b/drivers/pwm/pwm-atmel-tcb.c index 9d928e26b403..528e54c5999d 100644 --- a/drivers/pwm/pwm-atmel-tcb.c +++ b/drivers/pwm/pwm-atmel-tcb.c @@ -47,7 +47,6 @@ struct atmel_tcb_channel { }; struct atmel_tcb_pwm_chip { - struct pwm_chip chip; spinlock_t lock; u8 channel; u8 width; @@ -63,7 +62,7 @@ static const u8 atmel_tcb_divisors[] = { 2, 8, 32, 128, 0, }; static inline struct atmel_tcb_pwm_chip *to_tcb_chip(struct pwm_chip *chip) { - return container_of(chip, struct atmel_tcb_pwm_chip, chip); + return pwmchip_get_drvdata(chip); } static int atmel_tcb_pwm_request(struct pwm_chip *chip, @@ -397,9 +396,10 @@ static int atmel_tcb_pwm_probe(struct platform_device *pdev) int err; int channel; - tcbpwm = devm_kzalloc(&pdev->dev, sizeof(*tcbpwm), GFP_KERNEL); - if (tcbpwm == NULL) - return -ENOMEM; + chip = devm_pwmchip_alloc(&pdev->dev, NPWM, sizeof(*tcbpwm)); + if (IS_ERR(chip)) + return PTR_ERR(chip); + tcbpwm = to_tcb_chip(chip); err = of_property_read_u32(np, "reg", &channel); if (err < 0) { @@ -437,10 +437,7 @@ static int atmel_tcb_pwm_probe(struct platform_device *pdev) } } - chip = &tcbpwm->chip; - chip->dev = &pdev->dev; chip->ops = &atmel_tcb_pwm_ops; - chip->npwm = NPWM; tcbpwm->channel = channel; tcbpwm->width = config->counter_width; |