From e54def4ad8144ab15f826416e2e0f290ef1901b4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 19 Jun 2024 23:00:30 +0200 Subject: Adding upstream version 6.9.2. Signed-off-by: Daniel Baumann --- drivers/pwm/pwm-mxs.c | 32 ++++++++++++++++++-------------- 1 file changed, 18 insertions(+), 14 deletions(-) (limited to 'drivers/pwm/pwm-mxs.c') diff --git a/drivers/pwm/pwm-mxs.c b/drivers/pwm/pwm-mxs.c index 1b5e787d78..8cad214b1c 100644 --- a/drivers/pwm/pwm-mxs.c +++ b/drivers/pwm/pwm-mxs.c @@ -37,12 +37,14 @@ static const u8 cdiv_shift[PERIOD_CDIV_MAX] = { }; struct mxs_pwm_chip { - struct pwm_chip chip; struct clk *clk; void __iomem *base; }; -#define to_mxs_pwm_chip(_chip) container_of(_chip, struct mxs_pwm_chip, chip) +static inline struct mxs_pwm_chip *to_mxs_pwm_chip(struct pwm_chip *chip) +{ + return pwmchip_get_drvdata(chip); +} static int mxs_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, const struct pwm_state *state) @@ -120,12 +122,21 @@ static const struct pwm_ops mxs_pwm_ops = { static int mxs_pwm_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; + struct pwm_chip *chip; struct mxs_pwm_chip *mxs; + u32 npwm; int ret; - mxs = devm_kzalloc(&pdev->dev, sizeof(*mxs), GFP_KERNEL); - if (!mxs) - return -ENOMEM; + ret = of_property_read_u32(np, "fsl,pwm-number", &npwm); + if (ret < 0) { + dev_err(&pdev->dev, "failed to get pwm number: %d\n", ret); + return ret; + } + + chip = devm_pwmchip_alloc(&pdev->dev, npwm, sizeof(*mxs)); + if (IS_ERR(chip)) + return PTR_ERR(chip); + mxs = to_mxs_pwm_chip(chip); mxs->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(mxs->base)) @@ -135,21 +146,14 @@ static int mxs_pwm_probe(struct platform_device *pdev) if (IS_ERR(mxs->clk)) return PTR_ERR(mxs->clk); - mxs->chip.dev = &pdev->dev; - mxs->chip.ops = &mxs_pwm_ops; - - ret = of_property_read_u32(np, "fsl,pwm-number", &mxs->chip.npwm); - if (ret < 0) { - dev_err(&pdev->dev, "failed to get pwm number: %d\n", ret); - return ret; - } + chip->ops = &mxs_pwm_ops; /* FIXME: Only do this if the PWM isn't already running */ ret = stmp_reset_block(mxs->base); if (ret) return dev_err_probe(&pdev->dev, ret, "failed to reset PWM\n"); - ret = devm_pwmchip_add(&pdev->dev, &mxs->chip); + ret = devm_pwmchip_add(&pdev->dev, chip); if (ret < 0) { dev_err(&pdev->dev, "failed to add pwm chip %d\n", ret); return ret; -- cgit v1.2.3