Re: [PATCH v4 11/14] drm/amd/display: create a function to fill dc_sink with edid data

[Mario Limonciello]

On 6/13/2025 9:58 AM, Melissa Wen wrote:
From: Rodrigo Siqueira <sique...@igalia.com>
As part of the effort of stopping using raw edid, this commit move the
copy of the edid in DC to a dedicated function that will allow the usage
of drm_edid in the next steps.

v3:
- remove superfulous cast (jani)

I don't think that changelog needs to end up in the eventual commit 
history.  But it's useful while still under review.

Could you put the changelog below the cutlist (---)?


Signed-off-by: Rodrigo Siqueira <sique...@igalia.com>
Co-developer--by: Melissa Wen <m...@igalia.com>

These tags are wrong.  It's "Co-developed-by".

Signed-off-by: Melissa Wen <m...@igalia.com>
---
  drivers/gpu/drm/amd/display/amdgpu_dm/dc_edid.c      | 8 ++++++++
  drivers/gpu/drm/amd/display/amdgpu_dm/dc_edid.h      | 2 ++
  drivers/gpu/drm/amd/display/dc/link/link_detection.c | 3 +--
  3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/dc_edid.c 
b/drivers/gpu/drm/amd/display/amdgpu_dm/dc_edid.c
index fab873b091f5..a90545b176cc 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/dc_edid.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/dc_edid.c
@@ -17,3 +17,11 @@ bool dc_edid_is_same_edid(struct dc_sink *prev_sink,
         return (memcmp(old_edid->raw_edid,
                        new_edid->raw_edid, new_edid->length) == 0);
  }
+
+void dc_edid_copy_edid_to_dc(struct dc_sink *dc_sink,
+                            const void *edid,
+                            int len)
+{
+       memmove(dc_sink->dc_edid.raw_edid, edid, len);
+       dc_sink->dc_edid.length = len;
+}
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/dc_edid.h 
b/drivers/gpu/drm/amd/display/amdgpu_dm/dc_edid.h
index 7e3b1177bc8a..f42cd5bbc730 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/dc_edid.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/dc_edid.h
@@ -7,5 +7,7 @@
  
  bool dc_edid_is_same_edid(struct dc_sink *prev_sink,
                          struct dc_sink *current_sink);
+void dc_edid_copy_edid_to_dc(struct dc_sink *dc_sink,
+                            const void *edid, int len);
  
  #endif /* __DC_EDID_H__ */
diff --git a/drivers/gpu/drm/amd/display/dc/link/link_detection.c 
b/drivers/gpu/drm/amd/display/dc/link/link_detection.c
index 344356e26f8b..c28072f980cc 100644
--- a/drivers/gpu/drm/amd/display/dc/link/link_detection.c
+++ b/drivers/gpu/drm/amd/display/dc/link/link_detection.c
@@ -1401,8 +1401,7 @@ struct dc_sink *link_add_remote_sink(
        if (!dc_sink)
                return NULL;
  
-	memmove(dc_sink->dc_edid.raw_edid, (const uint8_t *) edid, len);
-       dc_sink->dc_edid.length = len;
+       dc_edid_copy_edid_to_dc(dc_sink, edid, len);
  
  	if (!link_add_remote_sink_helper(
                        link,