diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-14 12:31:50 +0300 |
|---|---|---|
| committer | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-19 13:04:11 +0300 |
| commit | 1dc7dcba0b2d6148cd23d5b0880dfdeb73fb4b37 (patch) | |
| tree | cd4839698331fda531c4f67d197ea6ea6737e507 /drivers/pwm/pwm-lpc18xx-sct.c | |
| parent | 6a79dc8342d40d6039279fba995bd2017656a445 (diff) | |
| download | linux-1dc7dcba0b2d6148cd23d5b0880dfdeb73fb4b37.tar.xz | |
pwm: lpc18xx-sct: Make use of devm_pwmchip_alloc() function
This prepares the pwm-lpc18xx-sct 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/d480891340e927705843cd09e5777d4daaa6c9cc.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Diffstat (limited to 'drivers/pwm/pwm-lpc18xx-sct.c')
| -rw-r--r-- | drivers/pwm/pwm-lpc18xx-sct.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/drivers/pwm/pwm-lpc18xx-sct.c b/drivers/pwm/pwm-lpc18xx-sct.c index 9b1e8141aec7..04b76d257fd8 100644 --- a/drivers/pwm/pwm-lpc18xx-sct.c +++ b/drivers/pwm/pwm-lpc18xx-sct.c @@ -92,7 +92,6 @@ struct lpc18xx_pwm_data { }; struct lpc18xx_pwm_chip { - struct pwm_chip chip; void __iomem *base; struct clk *pwm_clk; unsigned long clk_rate; @@ -109,7 +108,7 @@ struct lpc18xx_pwm_chip { static inline struct lpc18xx_pwm_chip * to_lpc18xx_pwm_chip(struct pwm_chip *chip) { - return container_of(chip, struct lpc18xx_pwm_chip, chip); + return pwmchip_get_drvdata(chip); } static inline void lpc18xx_pwm_writel(struct lpc18xx_pwm_chip *lpc18xx_pwm, @@ -353,11 +352,10 @@ static int lpc18xx_pwm_probe(struct platform_device *pdev) int ret; u64 val; - lpc18xx_pwm = devm_kzalloc(&pdev->dev, sizeof(*lpc18xx_pwm), - GFP_KERNEL); - if (!lpc18xx_pwm) - return -ENOMEM; - chip = &lpc18xx_pwm->chip; + chip = devm_pwmchip_alloc(&pdev->dev, LPC18XX_NUM_PWMS, sizeof(*lpc18xx_pwm)); + if (IS_ERR(chip)) + return PTR_ERR(chip); + lpc18xx_pwm = to_lpc18xx_pwm_chip(chip); lpc18xx_pwm->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(lpc18xx_pwm->base)) @@ -388,9 +386,7 @@ static int lpc18xx_pwm_probe(struct platform_device *pdev) lpc18xx_pwm->min_period_ns = DIV_ROUND_UP(NSEC_PER_SEC, lpc18xx_pwm->clk_rate); - chip->dev = &pdev->dev; chip->ops = &lpc18xx_pwm_ops; - chip->npwm = LPC18XX_NUM_PWMS; /* SCT counter must be in unify (32 bit) mode */ lpc18xx_pwm_writel(lpc18xx_pwm, LPC18XX_PWM_CONFIG, |