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path: root/drivers/pwm/pwm-twl-led.c
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Diffstat (limited to 'drivers/pwm/pwm-twl-led.c')
-rw-r--r--drivers/pwm/pwm-twl-led.c55
1 files changed, 29 insertions, 26 deletions
diff --git a/drivers/pwm/pwm-twl-led.c b/drivers/pwm/pwm-twl-led.c
index c670ccb816..4b10a8dab3 100644
--- a/drivers/pwm/pwm-twl-led.c
+++ b/drivers/pwm/pwm-twl-led.c
@@ -62,13 +62,12 @@
#define TWL6040_LED_MODE_MASK 0x03
struct twl_pwmled_chip {
- struct pwm_chip chip;
struct mutex mutex;
};
static inline struct twl_pwmled_chip *to_twl(struct pwm_chip *chip)
{
- return container_of(chip, struct twl_pwmled_chip, chip);
+ return pwmchip_get_drvdata(chip);
}
static int twl4030_pwmled_config(struct pwm_chip *chip, struct pwm_device *pwm,
@@ -100,7 +99,7 @@ static int twl4030_pwmled_config(struct pwm_chip *chip, struct pwm_device *pwm,
ret = twl_i2c_write(TWL4030_MODULE_LED, pwm_config, base, 2);
if (ret < 0)
- dev_err(chip->dev, "%s: Failed to configure PWM\n", pwm->label);
+ dev_err(pwmchip_parent(chip), "%s: Failed to configure PWM\n", pwm->label);
return ret;
}
@@ -114,7 +113,7 @@ static int twl4030_pwmled_enable(struct pwm_chip *chip, struct pwm_device *pwm)
mutex_lock(&twl->mutex);
ret = twl_i2c_read_u8(TWL4030_MODULE_LED, &val, TWL4030_LEDEN_REG);
if (ret < 0) {
- dev_err(chip->dev, "%s: Failed to read LEDEN\n", pwm->label);
+ dev_err(pwmchip_parent(chip), "%s: Failed to read LEDEN\n", pwm->label);
goto out;
}
@@ -122,7 +121,7 @@ static int twl4030_pwmled_enable(struct pwm_chip *chip, struct pwm_device *pwm)
ret = twl_i2c_write_u8(TWL4030_MODULE_LED, val, TWL4030_LEDEN_REG);
if (ret < 0)
- dev_err(chip->dev, "%s: Failed to enable PWM\n", pwm->label);
+ dev_err(pwmchip_parent(chip), "%s: Failed to enable PWM\n", pwm->label);
out:
mutex_unlock(&twl->mutex);
@@ -139,7 +138,7 @@ static void twl4030_pwmled_disable(struct pwm_chip *chip,
mutex_lock(&twl->mutex);
ret = twl_i2c_read_u8(TWL4030_MODULE_LED, &val, TWL4030_LEDEN_REG);
if (ret < 0) {
- dev_err(chip->dev, "%s: Failed to read LEDEN\n", pwm->label);
+ dev_err(pwmchip_parent(chip), "%s: Failed to read LEDEN\n", pwm->label);
goto out;
}
@@ -147,7 +146,7 @@ static void twl4030_pwmled_disable(struct pwm_chip *chip,
ret = twl_i2c_write_u8(TWL4030_MODULE_LED, val, TWL4030_LEDEN_REG);
if (ret < 0)
- dev_err(chip->dev, "%s: Failed to disable PWM\n", pwm->label);
+ dev_err(pwmchip_parent(chip), "%s: Failed to disable PWM\n", pwm->label);
out:
mutex_unlock(&twl->mutex);
@@ -203,7 +202,7 @@ static int twl6030_pwmled_config(struct pwm_chip *chip, struct pwm_device *pwm,
ret = twl_i2c_write_u8(TWL6030_MODULE_ID1, on_time,
TWL6030_LED_PWM_CTRL1);
if (ret < 0)
- dev_err(chip->dev, "%s: Failed to configure PWM\n", pwm->label);
+ dev_err(pwmchip_parent(chip), "%s: Failed to configure PWM\n", pwm->label);
return ret;
}
@@ -217,7 +216,7 @@ static int twl6030_pwmled_enable(struct pwm_chip *chip, struct pwm_device *pwm)
mutex_lock(&twl->mutex);
ret = twl_i2c_read_u8(TWL6030_MODULE_ID1, &val, TWL6030_LED_PWM_CTRL2);
if (ret < 0) {
- dev_err(chip->dev, "%s: Failed to read PWM_CTRL2\n",
+ dev_err(pwmchip_parent(chip), "%s: Failed to read PWM_CTRL2\n",
pwm->label);
goto out;
}
@@ -227,7 +226,7 @@ static int twl6030_pwmled_enable(struct pwm_chip *chip, struct pwm_device *pwm)
ret = twl_i2c_write_u8(TWL6030_MODULE_ID1, val, TWL6030_LED_PWM_CTRL2);
if (ret < 0)
- dev_err(chip->dev, "%s: Failed to enable PWM\n", pwm->label);
+ dev_err(pwmchip_parent(chip), "%s: Failed to enable PWM\n", pwm->label);
out:
mutex_unlock(&twl->mutex);
@@ -244,7 +243,7 @@ static void twl6030_pwmled_disable(struct pwm_chip *chip,
mutex_lock(&twl->mutex);
ret = twl_i2c_read_u8(TWL6030_MODULE_ID1, &val, TWL6030_LED_PWM_CTRL2);
if (ret < 0) {
- dev_err(chip->dev, "%s: Failed to read PWM_CTRL2\n",
+ dev_err(pwmchip_parent(chip), "%s: Failed to read PWM_CTRL2\n",
pwm->label);
goto out;
}
@@ -254,7 +253,7 @@ static void twl6030_pwmled_disable(struct pwm_chip *chip,
ret = twl_i2c_write_u8(TWL6030_MODULE_ID1, val, TWL6030_LED_PWM_CTRL2);
if (ret < 0)
- dev_err(chip->dev, "%s: Failed to disable PWM\n", pwm->label);
+ dev_err(pwmchip_parent(chip), "%s: Failed to disable PWM\n", pwm->label);
out:
mutex_unlock(&twl->mutex);
@@ -295,7 +294,7 @@ static int twl6030_pwmled_request(struct pwm_chip *chip, struct pwm_device *pwm)
mutex_lock(&twl->mutex);
ret = twl_i2c_read_u8(TWL6030_MODULE_ID1, &val, TWL6030_LED_PWM_CTRL2);
if (ret < 0) {
- dev_err(chip->dev, "%s: Failed to read PWM_CTRL2\n",
+ dev_err(pwmchip_parent(chip), "%s: Failed to read PWM_CTRL2\n",
pwm->label);
goto out;
}
@@ -305,7 +304,7 @@ static int twl6030_pwmled_request(struct pwm_chip *chip, struct pwm_device *pwm)
ret = twl_i2c_write_u8(TWL6030_MODULE_ID1, val, TWL6030_LED_PWM_CTRL2);
if (ret < 0)
- dev_err(chip->dev, "%s: Failed to request PWM\n", pwm->label);
+ dev_err(pwmchip_parent(chip), "%s: Failed to request PWM\n", pwm->label);
out:
mutex_unlock(&twl->mutex);
@@ -321,7 +320,7 @@ static void twl6030_pwmled_free(struct pwm_chip *chip, struct pwm_device *pwm)
mutex_lock(&twl->mutex);
ret = twl_i2c_read_u8(TWL6030_MODULE_ID1, &val, TWL6030_LED_PWM_CTRL2);
if (ret < 0) {
- dev_err(chip->dev, "%s: Failed to read PWM_CTRL2\n",
+ dev_err(pwmchip_parent(chip), "%s: Failed to read PWM_CTRL2\n",
pwm->label);
goto out;
}
@@ -331,7 +330,7 @@ static void twl6030_pwmled_free(struct pwm_chip *chip, struct pwm_device *pwm)
ret = twl_i2c_write_u8(TWL6030_MODULE_ID1, val, TWL6030_LED_PWM_CTRL2);
if (ret < 0)
- dev_err(chip->dev, "%s: Failed to free PWM\n", pwm->label);
+ dev_err(pwmchip_parent(chip), "%s: Failed to free PWM\n", pwm->label);
out:
mutex_unlock(&twl->mutex);
@@ -345,25 +344,29 @@ static const struct pwm_ops twl6030_pwmled_ops = {
static int twl_pwmled_probe(struct platform_device *pdev)
{
+ struct pwm_chip *chip;
struct twl_pwmled_chip *twl;
-
- twl = devm_kzalloc(&pdev->dev, sizeof(*twl), GFP_KERNEL);
- if (!twl)
- return -ENOMEM;
+ unsigned int npwm;
+ const struct pwm_ops *ops;
if (twl_class_is_4030()) {
- twl->chip.ops = &twl4030_pwmled_ops;
- twl->chip.npwm = 2;
+ ops = &twl4030_pwmled_ops;
+ npwm = 2;
} else {
- twl->chip.ops = &twl6030_pwmled_ops;
- twl->chip.npwm = 1;
+ ops = &twl6030_pwmled_ops;
+ npwm = 1;
}
- twl->chip.dev = &pdev->dev;
+ chip = devm_pwmchip_alloc(&pdev->dev, npwm, sizeof(*twl));
+ if (IS_ERR(chip))
+ return PTR_ERR(chip);
+ twl = to_twl(chip);
+
+ chip->ops = ops;
mutex_init(&twl->mutex);
- return devm_pwmchip_add(&pdev->dev, &twl->chip);
+ return devm_pwmchip_add(&pdev->dev, chip);
}
#ifdef CONFIG_OF
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-13 18:34:23 +0000