ACPI / video: trivial costmetic cleanups

Fix whitespace and comments in several places in
drivers/acpi/video.c.

[rjw: Changelog]
Signed-off-by: NFelipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/video.c

 /*
- *  video.c - ACPI Video Driver ($Revision:$)
+ *  video.c - ACPI Video Driver
  *
  *  Copyright (C) 2004 Luming Yu <luming.yu@intel.com>
  *  Copyright (C) 2004 Bruno Ducrot <ducrot@poupinou.org>
@@ -118,26 +118,26 @@ struct acpi_video_bus_flags {
 };
 
 struct acpi_video_bus_cap {
-	u8 _DOS:1;		/*Enable/Disable output switching */
-	u8 _DOD:1;		/*Enumerate all devices attached to display adapter */
-	u8 _ROM:1;		/*Get ROM Data */
-	u8 _GPD:1;		/*Get POST Device */
-	u8 _SPD:1;		/*Set POST Device */
-	u8 _VPO:1;		/*Video POST Options */
+	u8 _DOS:1;		/* Enable/Disable output switching */
+	u8 _DOD:1;		/* Enumerate all devices attached to display adapter */
+	u8 _ROM:1;		/* Get ROM Data */
+	u8 _GPD:1;		/* Get POST Device */
+	u8 _SPD:1;		/* Set POST Device */
+	u8 _VPO:1;		/* Video POST Options */
 	u8 reserved:2;
 };
 
 struct acpi_video_device_attrib {
 	u32 display_index:4;	/* A zero-based instance of the Display */
-	u32 display_port_attachment:4;	/*This field differentiates the display type */
-	u32 display_type:4;	/*Describe the specific type in use */
-	u32 vendor_specific:4;	/*Chipset Vendor Specific */
-	u32 bios_can_detect:1;	/*BIOS can detect the device */
-	u32 depend_on_vga:1;	/*Non-VGA output device whose power is related to 
+	u32 display_port_attachment:4;	/* This field differentiates the display type */
+	u32 display_type:4;	/* Describe the specific type in use */
+	u32 vendor_specific:4;	/* Chipset Vendor Specific */
+	u32 bios_can_detect:1;	/* BIOS can detect the device */
+	u32 depend_on_vga:1;	/* Non-VGA output device whose power is related to
 				   the VGA device. */
-	u32 pipe_id:3;		/*For VGA multiple-head devices. */
-	u32 reserved:10;	/*Must be 0 */
-	u32 device_id_scheme:1;	/*Device ID Scheme */
+	u32 pipe_id:3;		/* For VGA multiple-head devices. */
+	u32 reserved:10;	/* Must be 0 */
+	u32 device_id_scheme:1;	/* Device ID Scheme */
 };
 
 struct acpi_video_enumerated_device {
@@ -174,17 +174,17 @@ struct acpi_video_device_flags {
 };
 
 struct acpi_video_device_cap {
-	u8 _ADR:1;		/*Return the unique ID */
-	u8 _BCL:1;		/*Query list of brightness control levels supported */
-	u8 _BCM:1;		/*Set the brightness level */
+	u8 _ADR:1;		/* Return the unique ID */
+	u8 _BCL:1;		/* Query list of brightness control levels supported */
+	u8 _BCM:1;		/* Set the brightness level */
 	u8 _BQC:1;		/* Get current brightness level */
 	u8 _BCQ:1;		/* Some buggy BIOS uses _BCQ instead of _BQC */
-	u8 _DDC:1;		/*Return the EDID for this device */
+	u8 _DDC:1;		/* Return the EDID for this device */
 };
 
 struct acpi_video_brightness_flags {
 	u8 _BCL_no_ac_battery_levels:1;	/* no AC/Battery levels in _BCL */
-	u8 _BCL_reversed:1;		/* _BCL package is in a reversed order*/
+	u8 _BCL_reversed:1;		/* _BCL package is in a reversed order */
 	u8 _BCL_use_index:1;		/* levels in _BCL are index values */
 	u8 _BCM_use_index:1;		/* input of _BCM is an index value */
 	u8 _BQC_use_index:1;		/* _BQC returns an index value */
@@ -231,7 +231,7 @@ static int acpi_video_get_next_level(struct acpi_video_device *device,
 static int acpi_video_switch_brightness(struct acpi_video_device *device,
 					 int event);
 
-/*backlight device sysfs support*/
+/* backlight device sysfs support */
 static int acpi_video_get_brightness(struct backlight_device *bd)
 {
 	unsigned long long cur_level;
@@ -243,8 +243,10 @@ static int acpi_video_get_brightness(struct backlight_device *bd)
 		return -EINVAL;
 	for (i = 2; i < vd->brightness->count; i++) {
 		if (vd->brightness->levels[i] == cur_level)
-			/* The first two entries are special - see page 575
-			   of the ACPI spec 3.0 */
+			/*
+			 * The first two entries are special - see page 575
+			 * of the ACPI spec 3.0
+			 */
 			return i-2;
 	}
 	return 0;
@@ -316,9 +318,11 @@ static const struct thermal_cooling_device_ops video_cooling_ops = {
 	.set_cur_state = video_set_cur_state,
 };
 
-/* --------------------------------------------------------------------------
-                               Video Management
-   -------------------------------------------------------------------------- */
+/*
+ * --------------------------------------------------------------------------
+ *                             Video Management
+ * --------------------------------------------------------------------------
+ */
 
 static int
 acpi_video_device_lcd_query_levels(struct acpi_video_device *device,
@@ -556,7 +560,8 @@ acpi_video_device_lcd_get_level_current(struct acpi_video_device *device,
 				      buf));
 			device->cap._BQC = device->cap._BCQ = 0;
 		} else {
-			/* Fixme:
+			/*
+			 * Fixme:
 			 * should we return an error or ignore this failure?
 			 * dev->brightness->curr is a cached value which stores
 			 * the correct current backlight level in most cases.
@@ -1039,7 +1044,8 @@ static int acpi_video_bus_check(struct acpi_video_bus *video)
 		return -ENODEV;
 	pci_dev_put(dev);
 
-	/* Since there is no HID, CID and so on for VGA driver, we have
+	/*
+	 * Since there is no HID, CID and so on for VGA driver, we have
 	 * to check well known required nodes.
 	 */
 
@@ -1069,9 +1075,11 @@ static int acpi_video_bus_check(struct acpi_video_bus *video)
 	return status;
 }
 
-/* --------------------------------------------------------------------------
-                                 Driver Interface
-   -------------------------------------------------------------------------- */
+/*
+ * --------------------------------------------------------------------------
+ *                               Driver Interface
+ * --------------------------------------------------------------------------
+ */
 
 /* device interface */
 static struct acpi_video_device_attrib*