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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-14 12:32:38 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-06-12 12:03:14 +0300 |
| commit | e07184f033637d8d3d67821e9037e8e03d9f934e (patch) | |
| tree | 1490e4fb32ed57ad4f8ec59cd7681b8a963773f7 /drivers/pwm | |
| parent | e173bd3ca0ee97c958e80a9c5c09a7fa196a1525 (diff) | |
| download | linux-e07184f033637d8d3d67821e9037e8e03d9f934e.tar.xz | |
pwm: sti: Prepare removing pwm_chip from driver data
[ Upstream commit 54272761ce7c475fa30a31b59b0cb89f7652b39e ]
This prepares the driver for further changes that will drop struct
pwm_chip chip from struct sti_pwm_chip. Use the pwm_chip as driver data
instead of the sti_pwm_chip to get access to the pwm_chip in
sti_pwm_remove() without using pc->chip.
Link: https://lore.kernel.org/r/56d53372aacff6871df4d6c6779c9dac94592696.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Stable-dep-of: 5bb0b194aeee ("pwm: sti: Simplify probe function using devm functions")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/pwm')
| -rw-r--r-- | drivers/pwm/pwm-sti.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/pwm/pwm-sti.c b/drivers/pwm/pwm-sti.c index c782378dff5e..8f7aff51787b 100644 --- a/drivers/pwm/pwm-sti.c +++ b/drivers/pwm/pwm-sti.c @@ -571,6 +571,7 @@ static int sti_pwm_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct sti_pwm_compat_data *cdata; + struct pwm_chip *chip; struct sti_pwm_chip *pc; unsigned int i; int irq, ret; @@ -578,6 +579,7 @@ static int sti_pwm_probe(struct platform_device *pdev) pc = devm_kzalloc(dev, sizeof(*pc), GFP_KERNEL); if (!pc) return -ENOMEM; + chip = &pc->chip; cdata = devm_kzalloc(dev, sizeof(*cdata), GFP_KERNEL); if (!cdata) @@ -654,9 +656,9 @@ static int sti_pwm_probe(struct platform_device *pdev) return -ENOMEM; } - pc->chip.dev = dev; - pc->chip.ops = &sti_pwm_ops; - pc->chip.npwm = max(cdata->pwm_num_devs, cdata->cpt_num_devs); + chip->dev = dev; + chip->ops = &sti_pwm_ops; + chip->npwm = max(cdata->pwm_num_devs, cdata->cpt_num_devs); for (i = 0; i < cdata->cpt_num_devs; i++) { struct sti_cpt_ddata *ddata = &cdata->ddata[i]; @@ -665,23 +667,24 @@ static int sti_pwm_probe(struct platform_device *pdev) mutex_init(&ddata->lock); } - ret = pwmchip_add(&pc->chip); + ret = pwmchip_add(chip); if (ret < 0) { clk_unprepare(pc->pwm_clk); clk_unprepare(pc->cpt_clk); return ret; } - platform_set_drvdata(pdev, pc); + platform_set_drvdata(pdev, chip); return 0; } static void sti_pwm_remove(struct platform_device *pdev) { - struct sti_pwm_chip *pc = platform_get_drvdata(pdev); + struct pwm_chip *chip = platform_get_drvdata(pdev); + struct sti_pwm_chip *pc = to_sti_pwmchip(chip); - pwmchip_remove(&pc->chip); + pwmchip_remove(chip); clk_unprepare(pc->pwm_clk); clk_unprepare(pc->cpt_clk); |