diff options
Diffstat (limited to 'drivers/pwm/pwm-ab8500.c')
| -rw-r--r-- | drivers/pwm/pwm-ab8500.c | 36 |
1 files changed, 18 insertions, 18 deletions
diff --git a/drivers/pwm/pwm-ab8500.c b/drivers/pwm/pwm-ab8500.c index 670d33dae..f000adab8 100644 --- a/drivers/pwm/pwm-ab8500.c +++ b/drivers/pwm/pwm-ab8500.c @@ -24,13 +24,12 @@ #define AB8500_PWM_CLKRATE 9600000 struct ab8500_pwm_chip { - struct pwm_chip chip; unsigned int hwid; }; static struct ab8500_pwm_chip *ab8500_pwm_from_chip(struct pwm_chip *chip) { - return container_of(chip, struct ab8500_pwm_chip, chip); + return pwmchip_get_drvdata(chip); } static int ab8500_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, @@ -92,12 +91,12 @@ static int ab8500_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, * when disabled. */ if (!state->enabled || duty_steps == 0) { - ret = abx500_mask_and_set_register_interruptible(chip->dev, + ret = abx500_mask_and_set_register_interruptible(pwmchip_parent(chip), AB8500_MISC, AB8500_PWM_OUT_CTRL7_REG, 1 << ab8500->hwid, 0); if (ret < 0) - dev_err(chip->dev, "%s: Failed to disable PWM, Error %d\n", + dev_err(pwmchip_parent(chip), "%s: Failed to disable PWM, Error %d\n", pwm->label, ret); return ret; } @@ -115,22 +114,22 @@ static int ab8500_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, reg = AB8500_PWM_OUT_CTRL1_REG + (ab8500->hwid * 2); - ret = abx500_set_register_interruptible(chip->dev, AB8500_MISC, + ret = abx500_set_register_interruptible(pwmchip_parent(chip), AB8500_MISC, reg, lower_val); if (ret < 0) return ret; - ret = abx500_set_register_interruptible(chip->dev, AB8500_MISC, + ret = abx500_set_register_interruptible(pwmchip_parent(chip), AB8500_MISC, (reg + 1), higher_val); if (ret < 0) return ret; /* enable */ - ret = abx500_mask_and_set_register_interruptible(chip->dev, + ret = abx500_mask_and_set_register_interruptible(pwmchip_parent(chip), AB8500_MISC, AB8500_PWM_OUT_CTRL7_REG, 1 << ab8500->hwid, 1 << ab8500->hwid); if (ret < 0) - dev_err(chip->dev, "%s: Failed to enable PWM, Error %d\n", + dev_err(pwmchip_parent(chip), "%s: Failed to enable PWM, Error %d\n", pwm->label, ret); return ret; @@ -144,7 +143,7 @@ static int ab8500_pwm_get_state(struct pwm_chip *chip, struct pwm_device *pwm, struct ab8500_pwm_chip *ab8500 = ab8500_pwm_from_chip(chip); unsigned int div, duty_steps; - ret = abx500_get_register_interruptible(chip->dev, AB8500_MISC, + ret = abx500_get_register_interruptible(pwmchip_parent(chip), AB8500_MISC, AB8500_PWM_OUT_CTRL7_REG, &ctrl7); if (ret) @@ -157,13 +156,13 @@ static int ab8500_pwm_get_state(struct pwm_chip *chip, struct pwm_device *pwm, return 0; } - ret = abx500_get_register_interruptible(chip->dev, AB8500_MISC, + ret = abx500_get_register_interruptible(pwmchip_parent(chip), AB8500_MISC, AB8500_PWM_OUT_CTRL1_REG + (ab8500->hwid * 2), &lower_val); if (ret) return ret; - ret = abx500_get_register_interruptible(chip->dev, AB8500_MISC, + ret = abx500_get_register_interruptible(pwmchip_parent(chip), AB8500_MISC, AB8500_PWM_OUT_CTRL2_REG + (ab8500->hwid * 2), &higher_val); if (ret) @@ -185,6 +184,7 @@ static const struct pwm_ops ab8500_pwm_ops = { static int ab8500_pwm_probe(struct platform_device *pdev) { + struct pwm_chip *chip; struct ab8500_pwm_chip *ab8500; int err; @@ -195,16 +195,16 @@ static int ab8500_pwm_probe(struct platform_device *pdev) * Nothing to be done in probe, this is required to get the * device which is required for ab8500 read and write */ - ab8500 = devm_kzalloc(&pdev->dev, sizeof(*ab8500), GFP_KERNEL); - if (ab8500 == NULL) - return -ENOMEM; + chip = devm_pwmchip_alloc(&pdev->dev, 1, sizeof(*ab8500)); + if (IS_ERR(chip)) + return PTR_ERR(chip); - ab8500->chip.dev = &pdev->dev; - ab8500->chip.ops = &ab8500_pwm_ops; - ab8500->chip.npwm = 1; + ab8500 = ab8500_pwm_from_chip(chip); + + chip->ops = &ab8500_pwm_ops; ab8500->hwid = pdev->id - 1; - err = devm_pwmchip_add(&pdev->dev, &ab8500->chip); + err = devm_pwmchip_add(&pdev->dev, chip); if (err < 0) return dev_err_probe(&pdev->dev, err, "Failed to add pwm chip\n"); |