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drm/amd/display: Remove always-false branches

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[WHAT]
program_prealpha_dealpha and hpo_frl_stream_enc_acquired are always
false and all branches depending on them will never be taken.

This is reported as DEADCODE errors by Coverity.

Reviewed-by: Roman Li <roman.li@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Hung 2026-02-18 09:50:15 -07:00 committed by Alex Deucher
parent 83b75278eb
commit d9bc24d263
2 changed files with 1 additions and 10 deletions
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5
drivers/gpu/drm/amd/display/dc/dpp/dcn42/dcn42_dpp.c
View File

@ -132,7 +132,6 @@ static void dpp42_dpp_setup(
uint32_t alpha_plane_enable = 0;
uint32_t dealpha_en = 0, dealpha_ablnd_en = 0;
uint32_t realpha_en = 0, realpha_ablnd_en = 0;
uint32_t program_prealpha_dealpha = 0;
struct out_csc_color_matrix tbl_entry;
int i;
@ -256,10 +255,6 @@ static void dpp42_dpp_setup(
CNVC_ALPHA_PLANE_ENABLE, alpha_plane_enable);
REG_UPDATE(FORMAT_CONTROL, FORMAT_CONTROL__ALPHA_EN, alpha_en);
if (program_prealpha_dealpha) {
dealpha_en = 1;
realpha_en = 1;
}
REG_SET_2(PRE_DEALPHA, 0,
PRE_DEALPHA_EN, dealpha_en,
PRE_DEALPHA_ABLND_EN, dealpha_ablnd_en);

6
drivers/gpu/drm/amd/display/dc/hwss/dcn42/dcn42_hwseq.c
View File

@ -1078,7 +1078,6 @@ void dcn42_optimize_bandwidth(struct dc *dc, struct dc_state *context)
void dcn42_calc_blocks_to_ungate(struct dc *dc, struct dc_state *context,
struct pg_block_update *update_state)
{
bool hpo_frl_stream_enc_acquired = false;
bool hpo_dp_stream_enc_acquired = false;
int i = 0, j = 0;
@ -1172,12 +1171,9 @@ void dcn42_calc_blocks_to_ungate(struct dc *dc, struct dc_state *context,
}
}
if (hpo_frl_stream_enc_acquired || hpo_dp_stream_enc_acquired)
if (hpo_dp_stream_enc_acquired)
update_state->pg_res_update[PG_HPO] = true;
if (hpo_frl_stream_enc_acquired)
update_state->pg_pipe_res_update[PG_HDMISTREAM][0] = true;
if (count_active_streams(dc) > 0) {
update_state->pg_res_update[PG_DCCG] = true;
update_state->pg_res_update[PG_DCIO] = true;