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drm/edid: use the new displayid iterator for tile info

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Neatly reduce displayid boilerplate in code. Remove excessive debug
logging while at it, no other functional changes.

The old displayid iterator becomes unused; remove it as well as make
drm_find_displayid_extension() static.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/fa4b5c790b5bdd82063545a6f209f8e9d78a63a7.1617024940.git.jani.nikula@intel.com
This commit is contained in:
Jani Nikula
2021-03-29 16:37:20 +03:00
parent 1ba63caf22
commit bfd4e1929b
3 changed files with 10 additions and 45 deletions
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37
drivers/gpu/drm/drm_edid.c
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@@ -5969,43 +5969,20 @@ static void drm_parse_tiled_block(struct drm_connector *connector,
}
}
static void drm_displayid_parse_tiled(struct drm_connector *connector,
const u8 *displayid, int length, int idx)
{
const struct displayid_block *block;
idx += sizeof(struct displayid_hdr);
for_each_displayid_db(displayid, block, idx, length) {
DRM_DEBUG_KMS("block id 0x%x, rev %d, len %d\n",
block->tag, block->rev, block->num_bytes);
switch (block->tag) {
case DATA_BLOCK_TILED_DISPLAY:
drm_parse_tiled_block(connector, block);
break;
default:
DRM_DEBUG_KMS("found DisplayID tag 0x%x, unhandled\n", block->tag);
break;
}
}
}
void drm_update_tile_info(struct drm_connector *connector,
const struct edid *edid)
{
const void *displayid = NULL;
int ext_index = 0;
int length, idx;
const struct displayid_block *block;
struct displayid_iter iter;
connector->has_tile = false;
for (;;) {
displayid = drm_find_displayid_extension(edid, &length, &idx,
&ext_index);
if (!displayid)
break;
drm_displayid_parse_tiled(connector, displayid, length, idx);
displayid_iter_edid_begin(edid, &iter);
displayid_iter_for_each(block, &iter) {
if (block->tag == DATA_BLOCK_TILED_DISPLAY)
drm_parse_tiled_block(connector, block);
}
displayid_iter_end(&iter);
if (!connector->has_tile && connector->tile_group) {
drm_mode_put_tile_group(connector->dev, connector->tile_group);