diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-14 12:31:06 +0300 |
|---|---|---|
| committer | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-15 14:59:20 +0300 |
| commit | e5c368b821de56d7c824f72c0e93e8fdda62428c (patch) | |
| tree | 317ff6b746a0745305f0e8fb340e2c813fb22e9c /drivers/pwm/pwm-bcm-kona.c | |
| parent | 2089ecaa49b1b610fdae9b59eec200065ca1fc05 (diff) | |
| download | linux-e5c368b821de56d7c824f72c0e93e8fdda62428c.tar.xz | |
pwm: bcm-kona: Make use of devm_pwmchip_alloc() function
This prepares the pwm-bcm-kona 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/b50fe94dc72af602e7061839b24f48af6e005ef8.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Diffstat (limited to 'drivers/pwm/pwm-bcm-kona.c')
| -rw-r--r-- | drivers/pwm/pwm-bcm-kona.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/drivers/pwm/pwm-bcm-kona.c b/drivers/pwm/pwm-bcm-kona.c index 47acae8d7478..022c078aae84 100644 --- a/drivers/pwm/pwm-bcm-kona.c +++ b/drivers/pwm/pwm-bcm-kona.c @@ -56,14 +56,13 @@ #define DUTY_CYCLE_HIGH_MAX 0x00ffffff struct kona_pwmc { - struct pwm_chip chip; void __iomem *base; struct clk *clk; }; static inline struct kona_pwmc *to_kona_pwmc(struct pwm_chip *chip) { - return container_of(chip, struct kona_pwmc, chip); + return pwmchip_get_drvdata(chip); } /* @@ -273,18 +272,18 @@ static const struct pwm_ops kona_pwm_ops = { static int kona_pwmc_probe(struct platform_device *pdev) { + struct pwm_chip *chip; struct kona_pwmc *kp; unsigned int chan; unsigned int value = 0; int ret = 0; - kp = devm_kzalloc(&pdev->dev, sizeof(*kp), GFP_KERNEL); - if (kp == NULL) - return -ENOMEM; + chip = devm_pwmchip_alloc(&pdev->dev, 6, sizeof(*kp)); + if (IS_ERR(chip)) + return PTR_ERR(chip); + kp = to_kona_pwmc(chip); - kp->chip.dev = &pdev->dev; - kp->chip.ops = &kona_pwm_ops; - kp->chip.npwm = 6; + chip->ops = &kona_pwm_ops; kp->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(kp->base)) @@ -304,14 +303,14 @@ static int kona_pwmc_probe(struct platform_device *pdev) } /* Set push/pull for all channels */ - for (chan = 0; chan < kp->chip.npwm; chan++) + for (chan = 0; chan < chip->npwm; chan++) value |= (1 << PWM_CONTROL_TYPE_SHIFT(chan)); writel(value, kp->base + PWM_CONTROL_OFFSET); clk_disable_unprepare(kp->clk); - ret = devm_pwmchip_add(&pdev->dev, &kp->chip); + ret = devm_pwmchip_add(&pdev->dev, chip); if (ret < 0) dev_err(&pdev->dev, "failed to add PWM chip: %d\n", ret); |