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drm/i915/bios: Define VBT block 10 (Mode Removal Table) contents

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Define the contents of VBT block 10 (Mode Removal Table).

There seem to be two variants:
- 8 byte entries for desktop systems
- 10 byte entries for mobile systems, with the extra
  panel_flags being a bitmask of LFPs

It seems starting from HSW only the mobile variant is
used anymore.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503122449.27266-14-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Ville Syrjälä
2024-05-03 15:24:27 +03:00
parent 2318da471a
commit 98fe6aed8a
1 changed files with 23 additions and 0 deletions
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23
drivers/gpu/drm/i915/display/intel_vbt_defs.h
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@@ -677,6 +677,29 @@ struct bdb_psr {
u32 psr2_tp2_tp3_wakeup_time; /* 226+ */
} __packed;
/*
* Block 10 - Mode Removal Table
*/
struct mode_removal_table {
u16 x_res;
u16 y_res;
u8 bpp;
u16 refresh_rate;
u8 removal_flags;
u16 panel_flags;
} __packed;
struct bdb_mode_removal {
u8 row_size; /* 8 or 10 bytes */
/*
* VBT spec says this is always 20 entries,
* but ALM seems to have only 15 entries.
*/
struct mode_removal_table modes[];
/* u16 terminator; 0x0000 */
} __packed;
/*
* Block 12 - Driver Features Data Block
*/