pwm: berlin: Make use of devm_pwmchip_alloc() function
This prepares the pwm-berlin 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/52866502c96a80d1c30be003dc1f5a89a4d230cc.1707900770.git.u.kleine-koenig@pengutronix.de Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
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5874eaf869
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@ -49,7 +49,6 @@ struct berlin_pwm_channel {
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};
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struct berlin_pwm_chip {
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struct pwm_chip chip;
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struct clk *clk;
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void __iomem *base;
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struct berlin_pwm_channel channel[BERLIN_PWM_NUMPWMS];
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@ -57,7 +56,7 @@ struct berlin_pwm_chip {
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static inline struct berlin_pwm_chip *to_berlin_pwm_chip(struct pwm_chip *chip)
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{
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return container_of(chip, struct berlin_pwm_chip, chip);
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return pwmchip_get_drvdata(chip);
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}
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static inline u32 berlin_pwm_readl(struct berlin_pwm_chip *bpc,
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@ -202,9 +201,10 @@ static int berlin_pwm_probe(struct platform_device *pdev)
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struct berlin_pwm_chip *bpc;
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int ret;
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bpc = devm_kzalloc(&pdev->dev, sizeof(*bpc), GFP_KERNEL);
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if (!bpc)
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return -ENOMEM;
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chip = devm_pwmchip_alloc(&pdev->dev, BERLIN_PWM_NUMPWMS, sizeof(*bpc));
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if (IS_ERR(chip))
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return PTR_ERR(chip);
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bpc = to_berlin_pwm_chip(chip);
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bpc->base = devm_platform_ioremap_resource(pdev, 0);
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if (IS_ERR(bpc->base))
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@ -214,10 +214,7 @@ static int berlin_pwm_probe(struct platform_device *pdev)
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if (IS_ERR(bpc->clk))
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return PTR_ERR(bpc->clk);
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chip = &bpc->chip;
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chip->dev = &pdev->dev;
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chip->ops = &berlin_pwm_ops;
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chip->npwm = BERLIN_PWM_NUMPWMS;
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ret = devm_pwmchip_add(&pdev->dev, chip);
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if (ret < 0)
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