This is a note to let you know that I've just added the patch titled
drm/amd/display: fix is_timing_changed() prototype
to the 6.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amd-display-fix-is_timing_changed-prototype.patch
and it can be found in the queue-6.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 519979ec4d6c91fc95994142aad297fbfbf24e95
Author: Arnd Bergmann <arnd@xxxxxxxx>
Date: Tue Apr 18 00:07:18 2023 +0200
drm/amd/display: fix is_timing_changed() prototype
[ Upstream commit 3306ba4b60b2f3d9ac6bddc587a4d702e1ba2224 ]
Three functions in the amdgpu display driver cause -Wmissing-prototype
warnings:
drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_resource.c:1858:6: error: no previous prototype for 'is_timing_changed' [-Werror=missing-prototypes]
is_timing_changed() is actually meant to be a global symbol, but needs
a proper name and prototype.
Fixes: 17ce8a6907f7 ("drm/amd/display: Add dsc pre-validation in atomic check")
Reviewed-by: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index 810ab682f424f..46d0a8f57e552 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -45,8 +45,7 @@
#endif
#include "dc/dcn20/dcn20_resource.h"
-bool is_timing_changed(struct dc_stream_state *cur_stream,
- struct dc_stream_state *new_stream);
+
#define PEAK_FACTOR_X1000 1006
static ssize_t dm_dp_aux_transfer(struct drm_dp_aux *aux,
@@ -1422,7 +1421,7 @@ int pre_validate_dsc(struct drm_atomic_state *state,
struct dc_stream_state *stream = dm_state->context->streams[i];
if (local_dc_state->streams[i] &&
- is_timing_changed(stream, local_dc_state->streams[i])) {
+ dc_is_timing_changed(stream, local_dc_state->streams[i])) {
DRM_INFO_ONCE("crtc[%d] needs mode_changed\n", i);
} else {
int ind = find_crtc_index_in_state_by_stream(state, stream);
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index fe1551393b264..ba3eb36e75bc3 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -1878,7 +1878,7 @@ bool dc_add_all_planes_for_stream(
return add_all_planes_for_stream(dc, stream, &set, 1, context);
}
-bool is_timing_changed(struct dc_stream_state *cur_stream,
+bool dc_is_timing_changed(struct dc_stream_state *cur_stream,
struct dc_stream_state *new_stream)
{
if (cur_stream == NULL)
@@ -1903,7 +1903,7 @@ static bool are_stream_backends_same(
if (stream_a == NULL || stream_b == NULL)
return false;
- if (is_timing_changed(stream_a, stream_b))
+ if (dc_is_timing_changed(stream_a, stream_b))
return false;
if (stream_a->signal != stream_b->signal)
@@ -3528,7 +3528,7 @@ bool pipe_need_reprogram(
if (pipe_ctx_old->stream_res.stream_enc != pipe_ctx->stream_res.stream_enc)
return true;
- if (is_timing_changed(pipe_ctx_old->stream, pipe_ctx->stream))
+ if (dc_is_timing_changed(pipe_ctx_old->stream, pipe_ctx->stream))
return true;
if (pipe_ctx_old->stream->dpms_off != pipe_ctx->stream->dpms_off)
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index 30f0ba05a6e6c..4d93ca9c627b0 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -2226,4 +2226,7 @@ void dc_process_dmub_dpia_hpd_int_enable(const struct dc *dc,
/* Disable acc mode Interfaces */
void dc_disable_accelerated_mode(struct dc *dc);
+bool dc_is_timing_changed(struct dc_stream_state *cur_stream,
+ struct dc_stream_state *new_stream);
+
#endif /* DC_INTERFACE_H_ */
