drm/i915/bios: Define VBT block 55 (Compression Parameters)

Define the contents of the obsolete VBT block 55 (Compression
Parameters).

This was some early attempt at defining the compression
parameters. However the spec says:
"This block is obsolete and should not be consumed for any
 compression programming."

Block 56 is the replacement that should actually be used.

So let's just name the obsolete old block but not even
bother defining the contents.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503122449.27266-34-ville.syrjala@linux.intel.com
Acked-by: Jani Nikula <jani.nikula@intel.com>

diff --git a/drivers/gpu/drm/i915/display/intel_vbt_defs.h b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
index 19c2341931b37106cdec6717a82f161614396464..1cab8cce6a2c02332d02735130f0269d485dd834 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_vbt_defs.h
+++ b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
@@ -184,6 +184,7 @@ enum bdb_block_id {
        BDB_MIPI_CONFIG                 = 52, /* 175+ */
        BDB_MIPI_SEQUENCE               = 53, /* 177+ */
        BDB_RGB_PALETTE                 = 54, /* 180+ */
+       BDB_COMPRESSION_PARAMETERS_OLD  = 55, /* 198-212 */
        BDB_COMPRESSION_PARAMETERS      = 56, /* 213+ */
        BDB_VSWING_PREEMPH              = 57, /* 218+ */
        BDB_GENERIC_DTD                 = 58, /* 229+ */