diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-14 10:31:49 +0100 |
|---|---|---|
| committer | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-19 11:04:11 +0100 |
| commit | 6a79dc8342d40d6039279fba995bd2017656a445 (patch) | |
| tree | 1c79650683756623cb13d08f6490269b93f74eb6 /drivers/pwm/pwm-lpc18xx-sct.c | |
| parent | pwm: lpc18xx-sct: Make use of pwmchip_parent() accessor (diff) | |
| download | linux-6a79dc8342d40d6039279fba995bd2017656a445.tar.xz linux-6a79dc8342d40d6039279fba995bd2017656a445.zip | |
pwm: lpc18xx-sct: Prepare removing pwm_chip from driver data
This prepares the driver for further changes that will drop struct
pwm_chip chip from struct lpc18xx_pwm_chip. Use the pwm_chip as driver
data instead of the lpc18xx_pwm_chip to get access to the pwm_chip in
lpc18xx_pwm_remove() without using lpc18xx_pwm->chip.
Link: https://lore.kernel.org/r/b7bf8c421ff754ec3e985ec6235f4ddd6e5e27a4.1707900770.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 | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/pwm/pwm-lpc18xx-sct.c b/drivers/pwm/pwm-lpc18xx-sct.c index 46eeca27d9ab..9b1e8141aec7 100644 --- a/drivers/pwm/pwm-lpc18xx-sct.c +++ b/drivers/pwm/pwm-lpc18xx-sct.c @@ -348,6 +348,7 @@ MODULE_DEVICE_TABLE(of, lpc18xx_pwm_of_match); static int lpc18xx_pwm_probe(struct platform_device *pdev) { + struct pwm_chip *chip; struct lpc18xx_pwm_chip *lpc18xx_pwm; int ret; u64 val; @@ -356,6 +357,7 @@ static int lpc18xx_pwm_probe(struct platform_device *pdev) GFP_KERNEL); if (!lpc18xx_pwm) return -ENOMEM; + chip = &lpc18xx_pwm->chip; lpc18xx_pwm->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(lpc18xx_pwm->base)) @@ -386,9 +388,9 @@ static int lpc18xx_pwm_probe(struct platform_device *pdev) lpc18xx_pwm->min_period_ns = DIV_ROUND_UP(NSEC_PER_SEC, lpc18xx_pwm->clk_rate); - lpc18xx_pwm->chip.dev = &pdev->dev; - lpc18xx_pwm->chip.ops = &lpc18xx_pwm_ops; - lpc18xx_pwm->chip.npwm = LPC18XX_NUM_PWMS; + 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, @@ -420,21 +422,22 @@ static int lpc18xx_pwm_probe(struct platform_device *pdev) val |= LPC18XX_PWM_PRE(0); lpc18xx_pwm_writel(lpc18xx_pwm, LPC18XX_PWM_CTRL, val); - ret = pwmchip_add(&lpc18xx_pwm->chip); + ret = pwmchip_add(chip); if (ret < 0) return dev_err_probe(&pdev->dev, ret, "pwmchip_add failed\n"); - platform_set_drvdata(pdev, lpc18xx_pwm); + platform_set_drvdata(pdev, chip); return 0; } static void lpc18xx_pwm_remove(struct platform_device *pdev) { - struct lpc18xx_pwm_chip *lpc18xx_pwm = platform_get_drvdata(pdev); + struct pwm_chip *chip = platform_get_drvdata(pdev); + struct lpc18xx_pwm_chip *lpc18xx_pwm = to_lpc18xx_pwm_chip(chip); u32 val; - pwmchip_remove(&lpc18xx_pwm->chip); + pwmchip_remove(chip); val = lpc18xx_pwm_readl(lpc18xx_pwm, LPC18XX_PWM_CTRL); lpc18xx_pwm_writel(lpc18xx_pwm, LPC18XX_PWM_CTRL, |