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pwm: clk: Prepare removing pwm_chip from driver data

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This prepares the driver for further changes that will drop struct
pwm_chip chip from struct pwm_clk_chip. Use the pwm_chip as driver data
instead of the pwm_clk_chip to get access to the pwm_chip in
pwm_clk_remove() without using pcchip->chip.

Link: https://lore.kernel.org/r/cfbb7c571489ac3d9ca13835b3bd038aaca69638.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
This commit is contained in:
Uwe Kleine-König
2024-02-14 10:31:10 +01:00
parent f3d1efd083
commit fc6549a936
1 changed files with 10 additions and 7 deletions
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17
drivers/pwm/pwm-clk.c
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@@ -81,35 +81,38 @@ static const struct pwm_ops pwm_clk_ops = {
static int pwm_clk_probe(struct platform_device *pdev)
{
struct pwm_chip *chip;
struct pwm_clk_chip *pcchip;
int ret;
pcchip = devm_kzalloc(&pdev->dev, sizeof(*pcchip), GFP_KERNEL);
if (!pcchip)
return -ENOMEM;
chip = &pcchip->chip;
pcchip->clk = devm_clk_get_prepared(&pdev->dev, NULL);
if (IS_ERR(pcchip->clk))
return dev_err_probe(&pdev->dev, PTR_ERR(pcchip->clk),
"Failed to get clock\n");
pcchip->chip.dev = &pdev->dev;
pcchip->chip.ops = &pwm_clk_ops;
pcchip->chip.npwm = 1;
chip->dev = &pdev->dev;
chip->ops = &pwm_clk_ops;
chip->npwm = 1;
ret = pwmchip_add(&pcchip->chip);
ret = pwmchip_add(chip);
if (ret < 0)
return dev_err_probe(&pdev->dev, ret, "Failed to add pwm chip\n");
platform_set_drvdata(pdev, pcchip);
platform_set_drvdata(pdev, chip);
return 0;
}
static void pwm_clk_remove(struct platform_device *pdev)
{
struct pwm_clk_chip *pcchip = platform_get_drvdata(pdev);
struct pwm_chip *chip = platform_get_drvdata(pdev);
struct pwm_clk_chip *pcchip = to_pwm_clk_chip(chip);
pwmchip_remove(&pcchip->chip);
pwmchip_remove(chip);
if (pcchip->clk_enabled)
clk_disable(pcchip->clk);