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drm/displayid: convert to drm_edid

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We'll need to propagate drm_edid everywhere.

v2: Rebase

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a52a6882e87a4bb6b1670918f3aba13f9b52f6de.1652097712.git.jani.nikula@intel.com
This commit is contained in:
Jani Nikula 2022-05-09 15:03:23 +03:00
parent c7b2dee430
commit d9ba1b4cbb
4 changed files with 25 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
drivers/gpu/drm/drm_displayid.c
View File

@ -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;
}

17
drivers/gpu/drm/drm_edid.c
View File

@ -3563,10 +3563,13 @@ 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;
@ -3598,11 +3601,11 @@ 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;
@ -4454,7 +4457,7 @@ 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 ? drm_edid->edid : NULL, &iter->displayid_iter);
displayid_iter_edid_begin(drm_edid, &iter->displayid_iter);
}
static const struct cea_db *
@ -5657,7 +5660,7 @@ 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);
@ -5872,7 +5875,7 @@ 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)
@ -6372,7 +6375,7 @@ 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);

6
include/drm/drm_displayid.h
View File

@ -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);

6
include/drm/drm_edid.h
View File

@ -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,
/* 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__ */