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@xxxxxxxxxxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
---
drivers/gpu/drm/drm_displayid.c | 6 +++---
drivers/gpu/drm/drm_edid.c | 37 +++++++--------------------------
include/drm/drm_displayid.h | 12 -----------
3 files changed, 10 insertions(+), 45 deletions(-)
diff --git a/drivers/gpu/drm/drm_displayid.c b/drivers/gpu/drm/drm_displayid.c
index 5b809bb9fecc..902ff6114b68 100644
--- a/drivers/gpu/drm/drm_displayid.c
+++ b/drivers/gpu/drm/drm_displayid.c
@@ -33,9 +33,9 @@ static int validate_displayid(const u8 *displayid, int length, int idx)
return 0;
}
-const u8 *drm_find_displayid_extension(const struct edid *edid,
- int *length, int *idx,
- int *ext_index)
+static const u8 *drm_find_displayid_extension(const struct edid *edid,
+ int *length, int *idx,
+ int *ext_index)
{
const u8 *displayid = drm_find_edid_extension(edid, DISPLAYID_EXT, ext_index);
const struct displayid_hdr *base;
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 4526e2557dca..81d5f2524246 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -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);
diff --git a/include/drm/drm_displayid.h b/include/drm/drm_displayid.h
index 27e06c98db17..10ee863f1734 100644
--- a/include/drm/drm_displayid.h
+++ b/include/drm/drm_displayid.h
@@ -96,18 +96,6 @@ struct displayid_detailed_timing_block {
struct displayid_detailed_timings_1 timings[];
};
-#define for_each_displayid_db(displayid, block, idx, length) \
- for ((block) = (const struct displayid_block *)&(displayid)[idx]; \
- (idx) + sizeof(struct displayid_block) <= (length) && \
- (idx) + sizeof(struct displayid_block) + (block)->num_bytes <= (length) && \
- (block)->num_bytes > 0; \
- (idx) += sizeof(struct displayid_block) + (block)->num_bytes, \
- (block) = (const struct displayid_block *)&(displayid)[idx])
-
-const u8 *drm_find_displayid_extension(const struct edid *edid,
- int *length, int *idx,
- int *ext_index);
-
/* DisplayID iteration */
struct displayid_iter {
const struct edid *edid;
--
2.20.1
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