Merge tag 'mfd-3.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6

Pull MFD changes from Samuel Ortiz:
 "MFD bits for the 3.7 merge window.

  As usual we have a few new drivers:

   - TI LP8788
   - TI OMAP USB TLL
   - Maxim MAX8907
   - SMSC ECE1099
   - Dialog Semiconductor DA9055
   - A simpler syscon driver that allow us to get rid of the anatop one.

  Drivers are also gradually getting Device Tree and IRQ domain support.

  The following drivers got DT support:
   - palmas, 88pm860x, tc3589x and twl4030-audio

  And those ones now use the IRQ domain APIs:
   - 88pm860x, tc3589x, db8500_prcmu

  Also some other interesting changes:
   - Intel's ICH LPC now supports Lynx Point
   - TI's twl4030-audio added a GPO child
   - tps6527 enabled its backlight subdevice
   - The twl6030 pwm driver moved to the new PWM subsystem

  And finally a bunch of cleanup and casual fixes for mc13xxx, 88pm860x,
  palmas, ab8500, wm8994, wm5110, max8907 and the tps65xxx family."

Fix up various annoying conflicts: the DT and IRQ domain support came in
twice and was already in 3.6. And then it was apparently rebased.

Guys, DON'T REBASE!

* tag 'mfd-3.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (89 commits)
  ARM: dts: Enable 88pm860x pmic
  mfd: 88pm860x: Move gpadc init into touch
  mfd: 88pm860x: Device tree support
  mfd: 88pm860x: Use irqdomain
  mfd: smsc: Add support for smsc gpio io/keypad driver
  backlight: tps65217_bl: Add missing platform_set_drvdata in tps65217_bl_probe
  mfd: DA9055 core driver
  mfd: tps65910: Add alarm interrupt of TPS65910 RTC to mfd device list
  mfd: wm5110: Add register patches for revision B
  mfd: wm5110: Disable control interface error report for WM5110 rev B
  mfd: max8907: Remove regulator-compatible from DT docs
  backlight: Add TPS65217 WLED driver
  mfd: Add backlight as subdevice to the tps65217
  mfd: Provide the PRCMU with its own IRQ domain
  mfd: Fix max8907 sparse warning
  mfd: Add lp8788 mfd driver
  mfd: dbx500: Provide a more accurate smp_twd clock
  mfd: rc5t583: Fix warning messages
  regulator: palmas: Add DT support
  mfd: palmas: Change regulator defns to better suite DT
  ...

1 files changed, 41 insertions, 38 deletions

diff --git a/drivers/video/backlight/max8925_bl.c b/drivers/video/backlight/max8925_bl.c
index e833ac72e063..f72ba54f364e 100644
--- a/drivers/video/backlight/max8925_bl.c
+++ b/drivers/video/backlight/max8925_bl.c
@@ -27,7 +27,9 @@
 struct max8925_backlight_data {
 	struct max8925_chip	*chip;
 
-	int		current_brightness;
+	int	current_brightness;
+	int	reg_mode_cntl;
+	int	reg_cntl;
 };
 
 static int max8925_backlight_set(struct backlight_device *bl, int brightness)
@@ -42,16 +44,16 @@ static int max8925_backlight_set(struct backlight_device *bl, int brightness)
 	else
 		value = brightness;
 
-	ret = max8925_reg_write(chip->i2c, MAX8925_WLED_CNTL, value);
+	ret = max8925_reg_write(chip->i2c, data->reg_cntl, value);
 	if (ret < 0)
 		goto out;
 
 	if (!data->current_brightness && brightness)
 		/* enable WLED output */
-		ret = max8925_set_bits(chip->i2c, MAX8925_WLED_MODE_CNTL, 1, 1);
+		ret = max8925_set_bits(chip->i2c, data->reg_mode_cntl, 1, 1);
 	else if (!brightness)
 		/* disable WLED output */
-		ret = max8925_set_bits(chip->i2c, MAX8925_WLED_MODE_CNTL, 1, 0);
+		ret = max8925_set_bits(chip->i2c, data->reg_mode_cntl, 1, 0);
 	if (ret < 0)
 		goto out;
 	dev_dbg(chip->dev, "set brightness %d\n", value);
@@ -85,7 +87,7 @@ static int max8925_backlight_get_brightness(struct backlight_device *bl)
 	struct max8925_chip *chip = data->chip;
 	int ret;
 
-	ret = max8925_reg_read(chip->i2c, MAX8925_WLED_CNTL);
+	ret = max8925_reg_read(chip->i2c, data->reg_cntl);
 	if (ret < 0)
 		return -EINVAL;
 	data->current_brightness = ret;
@@ -102,69 +104,70 @@ static const struct backlight_ops max8925_backlight_ops = {
 static int __devinit max8925_backlight_probe(struct platform_device *pdev)
 {
 	struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent);
-	struct max8925_platform_data *max8925_pdata;
-	struct max8925_backlight_pdata *pdata = NULL;
+	struct max8925_backlight_pdata *pdata = pdev->dev.platform_data;
 	struct max8925_backlight_data *data;
 	struct backlight_device *bl;
 	struct backlight_properties props;
 	struct resource *res;
-	char name[MAX8925_NAME_SIZE];
 	unsigned char value;
-	int ret;
-
-	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
-	if (res == NULL) {
-		dev_err(&pdev->dev, "No I/O resource!\n");
-		return -EINVAL;
-	}
-
-	if (pdev->dev.parent->platform_data) {
-		max8925_pdata = pdev->dev.parent->platform_data;
-		pdata = max8925_pdata->backlight;
-	}
-
-	if (!pdata) {
-		dev_err(&pdev->dev, "platform data isn't assigned to "
-			"backlight\n");
-		return -EINVAL;
-	}
+	int ret = 0;
 
 	data = devm_kzalloc(&pdev->dev, sizeof(struct max8925_backlight_data),
 			    GFP_KERNEL);
 	if (data == NULL)
 		return -ENOMEM;
-	strncpy(name, res->name, MAX8925_NAME_SIZE);
+
+	res = platform_get_resource(pdev, IORESOURCE_REG, 0);
+	if (!res) {
+		dev_err(&pdev->dev, "No REG resource for mode control!\n");
+		ret = -ENXIO;
+		goto out;
+	}
+	data->reg_mode_cntl = res->start;
+	res = platform_get_resource(pdev, IORESOURCE_REG, 1);
+	if (!res) {
+		dev_err(&pdev->dev, "No REG resource for control!\n");
+		ret = -ENXIO;
+		goto out;
+	}
+	data->reg_cntl = res->start;
+
 	data->chip = chip;
 	data->current_brightness = 0;
 
 	memset(&props, 0, sizeof(struct backlight_properties));
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = MAX_BRIGHTNESS;
-	bl = backlight_device_register(name, &pdev->dev, data,
+	bl = backlight_device_register("max8925-backlight", &pdev->dev, data,
 					&max8925_backlight_ops, &props);
 	if (IS_ERR(bl)) {
 		dev_err(&pdev->dev, "failed to register backlight\n");
-		return PTR_ERR(bl);
+		ret = PTR_ERR(bl);
+		goto out;
 	}
 	bl->props.brightness = MAX_BRIGHTNESS;
 
 	platform_set_drvdata(pdev, bl);
 
 	value = 0;
-	if (pdata->lxw_scl)
-		value |= (1 << 7);
-	if (pdata->lxw_freq)
-		value |= (LWX_FREQ(pdata->lxw_freq) << 4);
-	if (pdata->dual_string)
-		value |= (1 << 1);
-	ret = max8925_set_bits(chip->i2c, MAX8925_WLED_MODE_CNTL, 0xfe, value);
+	if (pdata) {
+		if (pdata->lxw_scl)
+			value |= (1 << 7);
+		if (pdata->lxw_freq)
+			value |= (LWX_FREQ(pdata->lxw_freq) << 4);
+		if (pdata->dual_string)
+			value |= (1 << 1);
+	}
+	ret = max8925_set_bits(chip->i2c, data->reg_mode_cntl, 0xfe, value);
 	if (ret < 0)
-		goto out;
+		goto out_brt;
 
 	backlight_update_status(bl);
 	return 0;
-out:
+out_brt:
 	backlight_device_unregister(bl);
+out:
+	devm_kfree(&pdev->dev, data);
 	return ret;
 }