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pwm: tiecap: Make use of devm_pwmchip_alloc() function
This prepares the pwm-tegra 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/af7846109c0df225126c8e5cd186b89ace70afc0.1707900770.git.u.kleine-koenig@pengutronix.de Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
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@ -32,7 +32,6 @@ struct ecap_context {
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};
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struct ecap_pwm_chip {
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struct pwm_chip chip;
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unsigned int clk_rate;
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void __iomem *mmio_base;
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struct ecap_context ctx;
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@ -40,7 +39,7 @@ struct ecap_pwm_chip {
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static inline struct ecap_pwm_chip *to_ecap_pwm_chip(struct pwm_chip *chip)
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{
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return container_of(chip, struct ecap_pwm_chip, chip);
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return pwmchip_get_drvdata(chip);
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}
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/*
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@ -222,9 +221,10 @@ static int ecap_pwm_probe(struct platform_device *pdev)
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struct clk *clk;
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int ret;
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pc = devm_kzalloc(&pdev->dev, sizeof(*pc), GFP_KERNEL);
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if (!pc)
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return -ENOMEM;
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chip = devm_pwmchip_alloc(&pdev->dev, 1, sizeof(*pc));
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if (IS_ERR(chip))
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return PTR_ERR(chip);
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pc = to_ecap_pwm_chip(chip);
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clk = devm_clk_get(&pdev->dev, "fck");
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if (IS_ERR(clk)) {
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@ -245,10 +245,7 @@ static int ecap_pwm_probe(struct platform_device *pdev)
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return -EINVAL;
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}
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chip = &pc->chip;
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chip->dev = &pdev->dev;
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chip->ops = &ecap_pwm_ops;
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chip->npwm = 1;
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pc->mmio_base = devm_platform_ioremap_resource(pdev, 0);
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if (IS_ERR(pc->mmio_base))
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