[PATCH 3/4] backlight/lp855x: Merge lp855x_platform_data with lp855x

[Sean Paul <seanpaul@chromium.org>]

Now that we have removed the platform_data header, merge lp855x_platform_data
with lp855x and remove all traces of platform_data from the driver.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
---
 drivers/video/backlight/lp855x_bl.c | 100 +++++++++++++++++-------------------
 1 file changed, 46 insertions(+), 54 deletions(-)

diff --git a/drivers/video/backlight/lp855x_bl.c b/drivers/video/backlight/lp855x_bl.c
index d19b61c..8b81d8e 100644
--- a/drivers/video/backlight/lp855x_bl.c
+++ b/drivers/video/backlight/lp855x_bl.c
@@ -78,8 +78,16 @@ struct lp855x_rom_data {
 };
 
 /**
- * struct lp855x_platform_data
- * @name : Backlight driver name. If it is not defined, default name is set.
+ * struct lp855x
+ * @chipname : Chip name, comes from the i2c_device_id
+ * @blname : Backlight driver name. If it is not defined, default name is set.
+ * @chip_id : The type of lp855x
+ * @mode : Whether brightness is controlled via pwm or register
+ * @cfg : Chip specific hooks & register offsets
+ * @client : The i2c client
+ * @bl : The backlight device
+ * @dev : Device pointer
+ * @pwm : The pwm device (if available)
  * @device_control : value of DEVICE CONTROL register
  * @initial_brightness : initial value of backlight brightness
  * @period_ns : platform specific pwm period value. unit is nano.
@@ -88,26 +96,23 @@ struct lp855x_rom_data {
  * @rom_data : list of new eeprom/eprom registers
  * @supply : regulator that supplies 3V input
  */
-struct lp855x_platform_data {
-	const char *name;
-	u8 device_control;
-	u8 initial_brightness;
-	unsigned int period_ns;
-	int size_program;
-	struct lp855x_rom_data *rom_data;
-	struct regulator *supply;
-};
-
 struct lp855x {
 	const char *chipname;
+	const char *blname;
 	enum lp855x_chip_id chip_id;
 	enum lp855x_brightness_ctrl_mode mode;
 	struct lp855x_device_config *cfg;
 	struct i2c_client *client;
 	struct backlight_device *bl;
 	struct device *dev;
-	struct lp855x_platform_data *pdata;
 	struct pwm_device *pwm;
+
+	u8 device_control;
+	u8 initial_brightness;
+	unsigned int period_ns;
+	int size_program;
+	struct lp855x_rom_data *rom_data;
+	struct regulator *supply;
 };
 
 static int lp855x_write_byte(struct lp855x *lp, u8 reg, u8 data)
@@ -204,7 +209,6 @@ static int lp855x_configure(struct lp855x *lp)
 {
 	u8 val, addr;
 	int i, ret;
-	struct lp855x_platform_data *pd = lp->pdata;
 
 	switch (lp->chip_id) {
 	case LP8550:
@@ -230,20 +234,20 @@ static int lp855x_configure(struct lp855x *lp)
 		}
 	}
 
-	val = pd->initial_brightness;
+	val = lp->initial_brightness;
 	ret = lp855x_write_byte(lp, lp->cfg->reg_brightness, val);
 	if (ret)
 		goto err;
 
-	val = pd->device_control;
+	val = lp->device_control;
 	ret = lp855x_write_byte(lp, lp->cfg->reg_devicectrl, val);
 	if (ret)
 		goto err;
 
-	if (pd->size_program > 0) {
-		for (i = 0; i < pd->size_program; i++) {
-			addr = pd->rom_data[i].addr;
-			val = pd->rom_data[i].val;
+	if (lp->size_program > 0) {
+		for (i = 0; i < lp->size_program; i++) {
+			addr = lp->rom_data[i].addr;
+			val = lp->rom_data[i].val;
 			if (!lp855x_is_valid_rom_area(lp, addr))
 				continue;
 
@@ -269,7 +273,7 @@ err:
 
 static void lp855x_pwm_ctrl(struct lp855x *lp, int br, int max_br)
 {
-	unsigned int period = lp->pdata->period_ns;
+	unsigned int period = lp->period_ns;
 	unsigned int duty = br * period / max_br;
 	struct pwm_device *pwm;
 
@@ -320,16 +324,15 @@ static int lp855x_backlight_register(struct lp855x *lp)
 {
 	struct backlight_device *bl;
 	struct backlight_properties props;
-	struct lp855x_platform_data *pdata = lp->pdata;
-	const char *name = pdata->name ? : DEFAULT_BL_NAME;
+	const char *name = lp->blname ? : DEFAULT_BL_NAME;
 
 	props.type = BACKLIGHT_PLATFORM;
 	props.max_brightness = MAX_BRIGHTNESS;
 
-	if (pdata->initial_brightness > props.max_brightness)
-		pdata->initial_brightness = props.max_brightness;
+	if (lp->initial_brightness > props.max_brightness)
+		lp->initial_brightness = props.max_brightness;
 
-	props.brightness = pdata->initial_brightness;
+	props.brightness = lp->initial_brightness;
 
 	bl = devm_backlight_device_register(lp->dev, name, lp->dev, lp,
 				       &lp855x_bl_ops, &props);
@@ -381,7 +384,6 @@ static int lp855x_parse_dt(struct lp855x *lp)
 {
 	struct device *dev = lp->dev;
 	struct device_node *node = dev->of_node;
-	struct lp855x_platform_data *pdata;
 	int rom_length;
 
 	if (!node) {
@@ -389,14 +391,10 @@ static int lp855x_parse_dt(struct lp855x *lp)
 		return -EINVAL;
 	}
 
-	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
-	if (!pdata)
-		return -ENOMEM;
-
-	of_property_read_string(node, "bl-name", &pdata->name);
-	of_property_read_u8(node, "dev-ctrl", &pdata->device_control);
-	of_property_read_u8(node, "init-brt", &pdata->initial_brightness);
-	of_property_read_u32(node, "pwm-period", &pdata->period_ns);
+	of_property_read_string(node, "bl-name", &lp->blname);
+	of_property_read_u8(node, "dev-ctrl", &lp->device_control);
+	of_property_read_u8(node, "init-brt", &lp->initial_brightness);
+	of_property_read_u32(node, "pwm-period", &lp->period_ns);
 
 	/* Fill ROM platform data if defined */
 	rom_length = of_get_child_count(node);
@@ -415,19 +413,16 @@ static int lp855x_parse_dt(struct lp855x *lp)
 			i++;
 		}
 
-		pdata->size_program = rom_length;
-		pdata->rom_data = &rom[0];
+		lp->size_program = rom_length;
+		lp->rom_data = &rom[0];
 	}
 
-	pdata->supply = devm_regulator_get(dev, "power");
-	if (IS_ERR(pdata->supply)) {
-		if (PTR_ERR(pdata->supply) = -EPROBE_DEFER)
+	lp->supply = devm_regulator_get(dev, "power");
+	if (IS_ERR(lp->supply)) {
+		if (PTR_ERR(lp->supply) = -EPROBE_DEFER)
 			return -EPROBE_DEFER;
-		pdata->supply = NULL;
 	}
 
-	lp->pdata = pdata;
-
 	return 0;
 }
 #else
@@ -453,21 +448,18 @@ static int lp855x_probe(struct i2c_client *cl, const struct i2c_device_id *id)
 	lp->dev = &cl->dev;
 	lp->chipname = id->name;
 	lp->chip_id = id->driver_data;
-	lp->pdata = dev_get_platdata(&cl->dev);
 
-	if (!lp->pdata) {
-		ret = lp855x_parse_dt(lp);
-		if (ret < 0)
-			return ret;
-	}
+	ret = lp855x_parse_dt(lp);
+	if (ret < 0)
+		return ret;
 
-	if (lp->pdata->period_ns > 0)
+	if (lp->period_ns > 0)
 		lp->mode = PWM_BASED;
 	else
 		lp->mode = REGISTER_BASED;
 
-	if (lp->pdata->supply) {
-		ret = regulator_enable(lp->pdata->supply);
+	if (lp->supply) {
+		ret = regulator_enable(lp->supply);
 		if (ret < 0) {
 			dev_err(&cl->dev, "failed to enable supply: %d\n", ret);
 			return ret;
@@ -505,8 +497,8 @@ static int lp855x_remove(struct i2c_client *cl)
 
 	lp->bl->props.brightness = 0;
 	backlight_update_status(lp->bl);
-	if (lp->pdata->supply)
-		regulator_disable(lp->pdata->supply);
+	if (lp->supply)
+		regulator_disable(lp->supply);
 	sysfs_remove_group(&lp->dev->kobj, &lp855x_attr_group);
 
 	return 0;
-- 
2.2.0.rc0.207.ga3a616c