drm/i915/bios: add BDB block comments before definitions (231dcffc) · Commits · 戴 / test

drivers/gpu/drm/i915/intel_vbt_defs.h

+50 −7

Original line number	Diff line number	Diff line
		@@ -116,6 +116,10 @@ struct bdb_header {
		#define BDB_MIPI_SEQUENCE 53
		#define BDB_SKIP 254 /* VBIOS private block, ignore */

		/*
		* Block 1 - General Bit Definitions
		*/

		struct bdb_general_features {
		/* bits 1 */
		u8 panel_fitting:2;
		@@ -157,6 +161,10 @@ struct bdb_general_features {
		u8 rsvd11:2; /* finish byte */
		} __packed;

		/*
		* Block 2 - General Bytes Definition
		*/

		/* pre-915 */
		#define GPIO_PIN_DVI_LVDS 0x03 /* "DVI/LVDS DDC GPIO pins" */
		#define GPIO_PIN_ADD_I2C 0x05 /* "ADDCARD I2C GPIO pins" */
		@@ -447,6 +455,10 @@ struct bdb_general_definitions {
		u8 devices[0];
		} __packed;

		/*
		* Block 40 - LFP Data Block
		*/

		/* Mask for DRRS / Panel Channel / SSC / BLT control bits extraction */
		#define MODE_MASK 0x3

		@@ -476,6 +488,10 @@ struct bdb_lvds_options {
		u32 blt_control_type_bits;
		} __packed;

		/*
		* Block 41 - LFP Data Table Pointers
		*/

		/* LFP pointer table contains entries to the struct below */
		struct lvds_lfp_data_ptr {
		u16 fp_timing_offset; /* offsets are from start of bdb */
		@@ -491,6 +507,10 @@ struct bdb_lvds_lfp_data_ptrs {
		struct lvds_lfp_data_ptr ptr[16];
		} __packed;

		/*
		* Block 42 - LFP Data Tables
		*/

		/* LFP data has 3 blocks per entry */
		struct lvds_fp_timing {
		u16 x_res;
		@@ -557,10 +577,18 @@ struct bdb_lvds_lfp_data {
		struct lvds_lfp_data_entry data[16];
		} __packed;

		/*
		* Block 23 - SDVO LVDS Panel DTDs
		*/

		struct bdb_sdvo_panel_dtds {
		struct lvds_dvo_timing dtds[4];
		} __packed;

		/*
		* Block 43 - LFP Backlight Control Data Block
		*/

		#define BDB_BACKLIGHT_TYPE_NONE 0
		#define BDB_BACKLIGHT_TYPE_PWM 2

		@@ -586,6 +614,10 @@ struct bdb_lfp_backlight_data {
		struct lfp_backlight_control_method backlight_control[16];
		} __packed;

		/*
		* Block 22 - SDVO LVDS General Options
		*/

		struct bdb_sdvo_lvds_options {
		u8 panel_backlight;
		u8 h40_set_panel_type;
		@@ -602,6 +634,9 @@ struct bdb_sdvo_lvds_options {
		u8 panel_misc_bits_4;
		} __packed;

		/*
		* Block 12 - Driver Features Data Block
		*/

		#define BDB_DRIVER_FEATURE_NO_LVDS 0
		#define BDB_DRIVER_FEATURE_INT_LVDS 1
		@@ -662,6 +697,10 @@ struct bdb_driver_features {
		u16 pc_feature_valid:1;
		} __packed;

		/*
		* Block 27 - eDP VBT Block
		*/

		#define EDP_18BPP 0
		#define EDP_24BPP 1
		#define EDP_30BPP 2
		@@ -714,6 +753,10 @@ struct bdb_edp {
		struct edp_full_link_params full_link_params[16]; /* 199 */
		} __packed;

		/*
		* Block 9 - SRD Feature Block
		*/

		struct psr_table {
		/* Feature bits */
		u8 full_link:1;
		@@ -737,10 +780,10 @@ struct bdb_psr {
		struct psr_table psr_table[16];
		} __packed;

		/* Block 52 contains MIPI configuration block
		* 6 * bdb_mipi_config, followed by 6 pps data block
		* block below
		/*
		* Block 52 - MIPI Configuration Block
		*/

		#define MAX_MIPI_CONFIGURATIONS 6

		struct bdb_mipi_config {
		@@ -748,13 +791,13 @@ struct bdb_mipi_config {
		struct mipi_pps_data pps[MAX_MIPI_CONFIGURATIONS];
		} __packed;

		/* Block 53 contains MIPI sequences as needed by the panel
		* for enabling it. This block can be variable in size and
		* can be maximum of 6 blocks
		/*
		* Block 53 - MIPI Sequence Block
		*/

		struct bdb_mipi_sequence {
		u8 version;
		u8 data[0];
		u8 data[0]; /* up to 6 variable length blocks */
		} __packed;

		#endif /* _INTEL_VBT_DEFS_H_ */

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