Commit 4404b478 authored by Michael Strauss's avatar Michael Strauss Committed by Alex Deucher

drm/amd/display: Check for null fclk voltage when parsing clock table

[WHY]
In cases where a clock table is malformed such that fclk entries have
frequencies but not voltages listed, we don't catch the error and set
clocks to 0 instead of using hardcoded values as we should.

[HOW]
Add check for clock tables fclk entry's voltage as well
Signed-off-by: default avatarMichael Strauss <michael.strauss@amd.com>
Reviewed-by: default avatarEric Yang <eric.yang2@amd.com>
Acked-by: default avatarRodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 6fb4280e
...@@ -643,7 +643,7 @@ static void rn_clk_mgr_helper_populate_bw_params(struct clk_bw_params *bw_params ...@@ -643,7 +643,7 @@ static void rn_clk_mgr_helper_populate_bw_params(struct clk_bw_params *bw_params
/* Find lowest DPM, FCLK is filled in reverse order*/ /* Find lowest DPM, FCLK is filled in reverse order*/
for (i = PP_SMU_NUM_FCLK_DPM_LEVELS - 1; i >= 0; i--) { for (i = PP_SMU_NUM_FCLK_DPM_LEVELS - 1; i >= 0; i--) {
if (clock_table->FClocks[i].Freq != 0) { if (clock_table->FClocks[i].Freq != 0 && clock_table->FClocks[i].Vol != 0) {
j = i; j = i;
break; break;
} }
......
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