drm/bridge: tc358767: Add descriptions to register definitions

Use the register names from the datasheet. No functional change intended.
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231212075257.75084-8-alexander.stein@ew.tq-group.com

drivers/gpu/drm/bridge/tc358767.c

@@ -145,10 +145,10 @@
 #define VFUEN				BIT(0)   /* Video Frame Timing Upload */
 
 /* System */
-#define TC_IDREG		0x0500
-#define SYSSTAT			0x0508
-#define SYSRSTENB		0x050c
+#define TC_IDREG		0x0500	/* Chip ID and Revision ID */
 #define SYSBOOT			0x0504	/* System BootStrap Status Register */
+#define SYSSTAT			0x0508	/* System Status Register */
+#define SYSRSTENB		0x050c /* System Reset/Enable Register */
 #define ENBI2C				(1 << 0)
 #define ENBLCD0				(1 << 2)
 #define ENBBM				(1 << 3)
@@ -162,12 +162,12 @@
 #define DP0_VIDSRC_DSI_RX		(1 << 0)
 #define DP0_VIDSRC_DPI_RX		(2 << 0)
 #define DP0_VIDSRC_COLOR_BAR		(3 << 0)
-#define GPIOM			0x0540
-#define GPIOC			0x0544
-#define GPIOO			0x0548
-#define GPIOI			0x054c
-#define INTCTL_G		0x0560
-#define INTSTS_G		0x0564
+#define GPIOM			0x0540	/* GPIO Mode Control Register */
+#define GPIOC			0x0544	/* GPIO Direction Control Register */
+#define GPIOO			0x0548	/* GPIO Output Register */
+#define GPIOI			0x054c	/* GPIO Input Register */
+#define INTCTL_G		0x0560	/* General Interrupts Control Register */
+#define INTSTS_G		0x0564	/* General Interrupts Status Register */
 
 #define INT_SYSERR		BIT(16)
 #define INT_GPIO_H(x)		(1 << (x == 0 ? 2 : 10))
@@ -176,8 +176,8 @@
 #define TEST_INT_C		0x0570	/* Test Interrupts Control Register */
 #define TEST_INT_S		0x0574	/* Test Interrupts Status Register */
 
-#define INT_GP0_LCNT		0x0584
-#define INT_GP1_LCNT		0x0588
+#define INT_GP0_LCNT		0x0584	/* Interrupt GPIO0 Low Count Value Register */
+#define INT_GP1_LCNT		0x0588	/* Interrupt GPIO1 Low Count Value Register */
 
 /* Control */
 #define DP0CTL			0x0600
@@ -187,9 +187,9 @@
 #define DP_EN				BIT(0)   /* Enable DPTX function */
 
 /* Clocks */
-#define DP0_VIDMNGEN0		0x0610
-#define DP0_VIDMNGEN1		0x0614
-#define DP0_VMNGENSTATUS	0x0618
+#define DP0_VIDMNGEN0		0x0610	/* DP0 Video Force M Value Register */
+#define DP0_VIDMNGEN1		0x0614	/* DP0 Video Force N Value Register */
+#define DP0_VMNGENSTATUS	0x0618	/* DP0 Video Current M Value Register */
 #define DP0_AUDMNGEN0		0x0628	/* DP0 Audio Force M Value Register */
 #define DP0_AUDMNGEN1		0x062c	/* DP0 Audio Force N Value Register */
 #define DP0_AMNGENSTATUS	0x0630	/* DP0 Audio Current M Value Register */
@@ -277,7 +277,7 @@
 #define AUDIFDATA5		0x071c	/* DP0 Audio Info Frame Bytes 23 to 20 */
 #define AUDIFDATA6		0x0720	/* DP0 Audio Info Frame Bytes 27 to 24 */
 
-#define DP1_SRCCTRL		0x07a0
+#define DP1_SRCCTRL		0x07a0	/* DP1 Control Register */
 
 /* PHY */
 #define DP_PHY_CTRL		0x0800