diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-14 10:30:53 +0100 |
|---|---|---|
| committer | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-15 12:59:19 +0100 |
| commit | 6357c2cd05e167f885edd784254da59e311197bd (patch) | |
| tree | f35258d734a29d366dd6b3b9df764c03f619352c /drivers/pwm | |
| parent | 96af28dc44b9a13c04d6b70a9ad5a8fa0daf1d67 (diff) | |
| download | linux-6357c2cd05e167f885edd784254da59e311197bd.tar.gz | |
pwm: ab8500: Make use of devm_pwmchip_alloc() function
This prepares the pwm-ab8500 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/9c952baafe7e53c482adf23215138724b61e376b.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Diffstat (limited to 'drivers/pwm')
| -rw-r--r-- | drivers/pwm/pwm-ab8500.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/pwm/pwm-ab8500.c b/drivers/pwm/pwm-ab8500.c index 9043e5643f44ee..f000adab85b00e 100644 --- a/drivers/pwm/pwm-ab8500.c +++ b/drivers/pwm/pwm-ab8500.c @@ -24,13 +24,12 @@ #define AB8500_PWM_CLKRATE 9600000 struct ab8500_pwm_chip { - struct pwm_chip chip; unsigned int hwid; }; static struct ab8500_pwm_chip *ab8500_pwm_from_chip(struct pwm_chip *chip) { - return container_of(chip, struct ab8500_pwm_chip, chip); + return pwmchip_get_drvdata(chip); } static int ab8500_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, @@ -196,14 +195,13 @@ static int ab8500_pwm_probe(struct platform_device *pdev) * Nothing to be done in probe, this is required to get the * device which is required for ab8500 read and write */ - ab8500 = devm_kzalloc(&pdev->dev, sizeof(*ab8500), GFP_KERNEL); - if (ab8500 == NULL) - return -ENOMEM; + chip = devm_pwmchip_alloc(&pdev->dev, 1, sizeof(*ab8500)); + if (IS_ERR(chip)) + return PTR_ERR(chip); + + ab8500 = ab8500_pwm_from_chip(chip); - chip = &ab8500->chip; - chip->dev = &pdev->dev; chip->ops = &ab8500_pwm_ops; - chip->npwm = 1; ab8500->hwid = pdev->id - 1; err = devm_pwmchip_add(&pdev->dev, chip); |