Update comments used for each group of constants to better reflect their
current purpose.  Ensure the layout of groups of constants follows the
order in which call_fext_func() takes its arguments.  Use alphabetic
ordering for groups of constants.

Signed-off-by: Michał Kępień <ker...@kempniu.pl>
---
 drivers/platform/x86/fujitsu-laptop.c | 55 +++++++++++++++++------------------
 1 file changed, 27 insertions(+), 28 deletions(-)

diff --git a/drivers/platform/x86/fujitsu-laptop.c 
b/drivers/platform/x86/fujitsu-laptop.c
index 5f8c89155b51..5acf1ccc6864 100644
--- a/drivers/platform/x86/fujitsu-laptop.c
+++ b/drivers/platform/x86/fujitsu-laptop.c
@@ -78,15 +78,15 @@
 
 #define ACPI_FUJITSU_NOTIFY_CODE       0x80
 
-/* FUNC interface - command values */
-#define FUNC_FLAGS                     BIT(12)
-#define FUNC_LEDS                      (BIT(12) | BIT(0))
-#define FUNC_BUTTONS                   (BIT(12) | BIT(1))
-#define FUNC_BACKLIGHT                 (BIT(12) | BIT(2))
-
 /* FUNC interface - responses */
 #define UNSUPPORTED_CMD                        BIT(31)
 
+/* FUNC interface - function selectors */
+#define FUNC_BACKLIGHT                 (BIT(12) | BIT(2))
+#define FUNC_BUTTONS                   (BIT(12) | BIT(1))
+#define FUNC_FLAGS                     BIT(12)
+#define FUNC_LEDS                      (BIT(12) | BIT(0))
+
 /* FUNC interface - operations */
 #define OP_GET                         BIT(1)
 #define OP_GET_CAPS                    0
@@ -95,41 +95,40 @@
 #define OP_SET                         BIT(0)
 #define OP_SET_EXT                     (BIT(2) | BIT(0))
 
-/* FUNC interface - status flags */
-#define FLAG_RFKILL                    BIT(5)
-#define FLAG_LID                       BIT(8)
-#define FLAG_DOCK                      BIT(9)
-
-/* FUNC interface - LED control */
-#define STATE_LED_OFF                  BIT(0)
-#define STATE_LED_ON                   (BIT(0) | BIT(16) | BIT(17))
-#define FEAT_LOGOLAMP_POWERON          BIT(13)
-#define FEAT_LOGOLAMP_ALWAYS           BIT(14)
-#define FEAT_KEYBOARD_LAMPS            BIT(8)
-
-#define FEAT_RADIO_LED                 BIT(5)
-#define STATE_RADIO_LED_OFF            0
-#define STATE_RADIO_LED_ON             BIT(5)
-
-#define FEAT_ECO_LED                   BIT(16)
-#define STATE_ECO_LED_ON               BIT(19)
-
-/* FUNC interface - backlight power control */
+/* Constants related to FUNC_BACKLIGHT */
 #define FEAT_BACKLIGHT_POWER           BIT(2)
 #define STATE_BACKLIGHT_OFF            (BIT(0) | BIT(1))
 #define STATE_BACKLIGHT_ON             0
 
-/* Scancodes read from the GIRB register */
+/* Constants related to FUNC_BUTTONS */
 #define EVENT_HK1                      0x410
 #define EVENT_HK2                      0x411
 #define EVENT_HK3                      0x412
 #define EVENT_HK4                      0x413
 #define EVENT_HK5                      0x420
 
-/* Hotkey ringbuffer limits */
 #define MAX_HOTKEY_RINGBUFFER_SIZE     100
 #define RINGBUFFERSIZE                 40
 
+/* Constant related to FUNC_FLAGS */
+#define FLAG_DOCK                      BIT(9)
+#define FLAG_LID                       BIT(8)
+#define FLAG_RFKILL                    BIT(5)
+
+/* Constants related to FUNC_LEDS */
+#define FEAT_KEYBOARD_LAMPS            BIT(8)
+#define FEAT_LOGOLAMP_ALWAYS           BIT(14)
+#define FEAT_LOGOLAMP_POWERON          BIT(13)
+#define STATE_LED_OFF                  BIT(0)
+#define STATE_LED_ON                   (BIT(0) | BIT(16) | BIT(17))
+
+#define FEAT_RADIO_LED                 BIT(5)
+#define STATE_RADIO_LED_OFF            0
+#define STATE_RADIO_LED_ON             BIT(5)
+
+#define FEAT_ECO_LED                   BIT(16)
+#define STATE_ECO_LED_ON               BIT(19)
+
 /* Module parameters */
 static int use_alt_lcd_levels = -1;
 static bool disable_brightness_adjust;
-- 
2.16.2

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