From: Michael Strauss <[email protected]>

[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: Michael Strauss <[email protected]>
Reviewed-by: Eric Yang <[email protected]>
Acked-by: Rodrigo Siqueira <[email protected]>
---
 drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c 
b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
index ab267ddd4abe..24c5765890fa 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
@@ -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*/
 
        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;
                        break;
                }
-- 
2.26.0

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