[Intel-gfx] [PATCH 24/25] drm/displayid: convert to drm_edid
Jani Nikula
jani.nikula at intel.com
Fri May 6 10:10:31 UTC 2022
We'll need to propagate drm_edid everywhere.
Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
drivers/gpu/drm/drm_displayid.c | 16 ++++++++--------
drivers/gpu/drm/drm_edid.c | 17 ++++++++++-------
include/drm/drm_displayid.h | 6 +++---
include/drm/drm_edid.h | 6 ++++--
4 files changed, 25 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/drm_displayid.c b/drivers/gpu/drm/drm_displayid.c
index 32da557b960f..38ea8203df45 100644
--- a/drivers/gpu/drm/drm_displayid.c
+++ b/drivers/gpu/drm/drm_displayid.c
@@ -33,11 +33,11 @@ static int validate_displayid(const u8 *displayid, int length, int idx)
return 0;
}
-static const u8 *drm_find_displayid_extension(const struct edid *edid,
+static const u8 *drm_find_displayid_extension(const struct drm_edid *drm_edid,
int *length, int *idx,
int *ext_index)
{
- const u8 *displayid = drm_find_edid_extension(edid, DISPLAYID_EXT, ext_index);
+ const u8 *displayid = drm_find_edid_extension(drm_edid, DISPLAYID_EXT, ext_index);
const struct displayid_header *base;
int ret;
@@ -58,12 +58,12 @@ static const u8 *drm_find_displayid_extension(const struct edid *edid,
return displayid;
}
-void displayid_iter_edid_begin(const struct edid *edid,
+void displayid_iter_edid_begin(const struct drm_edid *drm_edid,
struct displayid_iter *iter)
{
memset(iter, 0, sizeof(*iter));
- iter->edid = edid;
+ iter->drm_edid = drm_edid;
}
static const struct displayid_block *
@@ -88,7 +88,7 @@ __displayid_iter_next(struct displayid_iter *iter)
{
const struct displayid_block *block;
- if (!iter->edid)
+ if (!iter->drm_edid)
return NULL;
if (iter->section) {
@@ -96,7 +96,7 @@ __displayid_iter_next(struct displayid_iter *iter)
block = displayid_iter_block(iter);
if (WARN_ON(!block)) {
iter->section = NULL;
- iter->edid = NULL;
+ iter->drm_edid = NULL;
return NULL;
}
@@ -109,12 +109,12 @@ __displayid_iter_next(struct displayid_iter *iter)
}
for (;;) {
- iter->section = drm_find_displayid_extension(iter->edid,
+ iter->section = drm_find_displayid_extension(iter->drm_edid,
&iter->length,
&iter->idx,
&iter->ext_index);
if (!iter->section) {
- iter->edid = NULL;
+ iter->drm_edid = NULL;
return NULL;
}
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 82db7afb4f8e..bc64837ad706 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -3545,10 +3545,13 @@ static int add_detailed_modes(struct drm_connector *connector,
/*
* Search EDID for CEA extension block.
+ *
+ * FIXME: Prefer not returning pointers to raw EDID data.
*/
-const u8 *drm_find_edid_extension(const struct edid *edid,
+const u8 *drm_find_edid_extension(const struct drm_edid *drm_edid,
int ext_id, int *ext_index)
{
+ const struct edid *edid = drm_edid ? drm_edid->edid : NULL;
const u8 *edid_ext = NULL;
int i;
@@ -3580,11 +3583,11 @@ static bool drm_edid_has_cta_extension(const struct drm_edid *drm_edid)
bool found = false;
/* Look for a top level CEA extension block */
- if (drm_find_edid_extension(drm_edid->edid, CEA_EXT, &ext_index))
+ if (drm_find_edid_extension(drm_edid, CEA_EXT, &ext_index))
return true;
/* CEA blocks can also be found embedded in a DisplayID block */
- displayid_iter_edid_begin(drm_edid->edid, &iter);
+ displayid_iter_edid_begin(drm_edid, &iter);
displayid_iter_for_each(block, &iter) {
if (block->tag == DATA_BLOCK_CTA) {
found = true;
@@ -4436,7 +4439,7 @@ static void cea_db_iter_edid_begin(const struct drm_edid *drm_edid,
memset(iter, 0, sizeof(*iter));
drm_edid_iter_begin(drm_edid, &iter->edid_iter);
- displayid_iter_edid_begin(drm_edid->edid, &iter->displayid_iter);
+ displayid_iter_edid_begin(drm_edid, &iter->displayid_iter);
}
static const struct cea_db *
@@ -5650,7 +5653,7 @@ static void drm_update_mso(struct drm_connector *connector,
const struct displayid_block *block;
struct displayid_iter iter;
- displayid_iter_edid_begin(drm_edid->edid, &iter);
+ displayid_iter_edid_begin(drm_edid, &iter);
displayid_iter_for_each(block, &iter) {
if (block->tag == DATA_BLOCK_2_VENDOR_SPECIFIC)
drm_parse_vesa_mso_data(connector, block);
@@ -5867,7 +5870,7 @@ static int add_displayid_detailed_modes(struct drm_connector *connector,
struct displayid_iter iter;
int num_modes = 0;
- displayid_iter_edid_begin(drm_edid->edid, &iter);
+ displayid_iter_edid_begin(drm_edid, &iter);
displayid_iter_for_each(block, &iter) {
if (block->tag == DATA_BLOCK_TYPE_1_DETAILED_TIMING ||
block->tag == DATA_BLOCK_2_TYPE_7_DETAILED_TIMING)
@@ -6371,7 +6374,7 @@ static void _drm_update_tile_info(struct drm_connector *connector,
connector->has_tile = false;
- displayid_iter_edid_begin(drm_edid ? drm_edid->edid : NULL, &iter);
+ displayid_iter_edid_begin(drm_edid, &iter);
displayid_iter_for_each(block, &iter) {
if (block->tag == DATA_BLOCK_TILED_DISPLAY)
drm_parse_tiled_block(connector, block);
diff --git a/include/drm/drm_displayid.h b/include/drm/drm_displayid.h
index 7ffbd9f7bfc7..49649eb8447e 100644
--- a/include/drm/drm_displayid.h
+++ b/include/drm/drm_displayid.h
@@ -25,7 +25,7 @@
#include <linux/types.h>
#include <linux/bits.h>
-struct edid;
+struct drm_edid;
#define VESA_IEEE_OUI 0x3a0292
@@ -141,7 +141,7 @@ struct displayid_vesa_vendor_specific_block {
/* DisplayID iteration */
struct displayid_iter {
- const struct edid *edid;
+ const struct drm_edid *drm_edid;
const u8 *section;
int length;
@@ -149,7 +149,7 @@ struct displayid_iter {
int ext_index;
};
-void displayid_iter_edid_begin(const struct edid *edid,
+void displayid_iter_edid_begin(const struct drm_edid *drm_edid,
struct displayid_iter *iter);
const struct displayid_block *
__displayid_iter_next(struct displayid_iter *iter);
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index c3204a58fb09..c61e75ab8f63 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -28,6 +28,7 @@
#include <drm/drm_mode.h>
struct drm_device;
+struct drm_edid;
struct i2c_adapter;
#define EDID_LENGTH 128
@@ -578,8 +579,9 @@ struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
struct drm_display_mode *
drm_display_mode_from_cea_vic(struct drm_device *dev,
u8 video_code);
-const u8 *drm_find_edid_extension(const struct edid *edid,
- int ext_id, int *ext_index);
+/* Interface based on struct drm_edid */
+const u8 *drm_find_edid_extension(const struct drm_edid *drm_edid,
+ int ext_id, int *ext_index);
#endif /* __DRM_EDID_H__ */
--
2.30.2
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