drm/amd/display: Add guard for FCLK pstate message to PMFW for DCN321

[WHY?]
DCN321 does not support FCLK DPM, and thus it should not send messages to
PMFW regarding it.

Signed-off-by: Dillon Varone <dillon.varone@amd.com>
Acked-by: Jerry Zuo <jerry.zuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c
index 419cc83b3d21f8ee1886c3d3065cc97b27ed54da..4ff12b8166142acd7e3e52a7289a48385c7aac56 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c
@@ -346,7 +346,8 @@ static void dcn32_update_clocks(struct clk_mgr *clk_mgr_base,
                                        clk_mgr_base->bw_params->clk_table.entries[clk_mgr_base->bw_params->clk_table.num_entries - 1].memclk_mhz);
        }
 
-       if (should_update_pstate_support(safe_to_lower, fclk_p_state_change_support, clk_mgr_base->clks.fclk_p_state_change_support)) {
+       if (should_update_pstate_support(safe_to_lower, fclk_p_state_change_support, clk_mgr_base->clks.fclk_p_state_change_support) &&
+                       clk_mgr_base->ctx->dce_version != DCN_VERSION_3_21) {
                clk_mgr_base->clks.fclk_p_state_change_support = fclk_p_state_change_support;
 
                /* To disable FCLK P-state switching, send FCLK_PSTATE_NOTSUPPORTED message to PMFW */