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drm/amd/display: only call pmfw if smu present flags true

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[Why & How]
for fault safe case: only call pmfw if smu present flags true
and default to 2 channle for bios intergration info table error.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Signed-off-by: James Lin <pinglei.lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Charlene Liu 2026-04-20 11:47:11 -04:00 committed by Alex Deucher
parent c3fb1fb9e6
commit 0b19e2bd18
1 changed files with 5 additions and 4 deletions
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9
drivers/gpu/drm/amd/display/dc/clk_mgr/dcn42/dcn42_clk_mgr.c
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@ -1078,10 +1078,11 @@ void dcn42_clk_mgr_construct(
dcn42_bw_params.vram_type = ctx->dc_bios->integrated_info->memory_type;
dcn42_bw_params.dram_channel_width_bytes = ctx->dc_bios->integrated_info->memory_type == 0x22 ? 8 : 4;
dcn42_bw_params.num_channels = ctx->dc_bios->integrated_info->ma_channel_number ? ctx->dc_bios->integrated_info->ma_channel_number : 1;
clk_mgr->base.base.dprefclk_khz = dcn42_smu_get_dprefclk(&clk_mgr->base);
clk_mgr->base.base.clks.ref_dtbclk_khz = dcn42_smu_get_dtbclk(&clk_mgr->base);
dcn42_bw_params.num_channels = ctx->dc_bios->integrated_info->ma_channel_number ? ctx->dc_bios->integrated_info->ma_channel_number : 2;
if (clk_mgr->base.smu_present) {
clk_mgr->base.base.clks.ref_dtbclk_khz = dcn42_smu_get_dtbclk(&clk_mgr->base);
clk_mgr->base.base.dprefclk_khz = dcn42_smu_get_dprefclk(&clk_mgr->base);
}
clk_mgr->base.base.bw_params = &dcn42_bw_params;
if (clk_mgr->base.smu_present)