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drm/amd/display: Remove unnecessary DSCCLK enable during DSC PG

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[Why & How]
DSCCLK is not required when power gating or ungating the DSC block.
Remove the unnecessary DSCCLK enable sequence.

Reviewed-by: Ovidiu (Ovi) Bunea <ovidiu.bunea@amd.com>
Signed-off-by: Leo Chen <leo.chen@amd.com>
Signed-off-by: George Zhang <george.zhang@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Leo Chen 2026-06-10 17:17:49 -04:00 committed by Alex Deucher
parent 3754bdca43
commit 7874b9d6c5
1 changed files with 0 additions and 11 deletions
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11
drivers/gpu/drm/amd/display/dc/pg/dcn42/dcn42_pg_cntl.c
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@ -96,11 +96,6 @@ void pg_cntl42_dsc_pg_control(struct pg_cntl *pg_cntl, unsigned int dsc_inst, bo
struct dcn42_global_fgcg_rep_state fgcg_rep_state = {0};
bool block_enabled;
/*need to enable dscclk regardless DSC_PG*/
if (pg_cntl->ctx->dc->res_pool->dccg->funcs->enable_dsc && power_on)
pg_cntl->ctx->dc->res_pool->dccg->funcs->enable_dsc(
pg_cntl->ctx->dc->res_pool->dccg, dsc_inst);
bool skip_pg = pg_cntl->ctx->dc->debug.ignore_pg ||
pg_cntl->ctx->dc->debug.disable_dsc_power_gate ||
pg_cntl->ctx->dc->idle_optimizations_allowed;
@ -167,12 +162,6 @@ void pg_cntl42_dsc_pg_control(struct pg_cntl *pg_cntl, unsigned int dsc_inst, bo
if (dsc_inst < MAX_PIPES)
pg_cntl->pg_pipe_res_enable[PG_DSC][dsc_inst] = power_on;
if (pg_cntl->ctx->dc->res_pool->dccg->funcs->disable_dsc && !power_on) {
/*this is to disable dscclk*/
pg_cntl->ctx->dc->res_pool->dccg->funcs->disable_dsc(
pg_cntl->ctx->dc->res_pool->dccg, dsc_inst);
}
}
static bool pg_cntl42_hubp_dpp_pg_status(struct pg_cntl *pg_cntl, unsigned int hubp_dpp_inst)