drm/amd/display: Disable DTB Ref Clock Switching in dcn32

[How & Why]
To be enabled once PMFW supports it.

Signed-off-by: Dillon Varone <dillon.varone@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 774de29fa5324f8a53d77a9ec231a8edc660aba0..f147c65137c6cb933bf79527ed325ebe637a9670 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
@@ -607,6 +607,10 @@ void dcn32_clk_mgr_construct(
        if (clk_mgr->base.dentist_vco_freq_khz == 0)
                clk_mgr->base.dentist_vco_freq_khz = 4300000; /* Updated as per HW docs */
 
+       if (clk_mgr->dccg->ref_dtbclk_khz != clk_mgr->base.boot_snapshot.dtbclk) {
+               clk_mgr->dccg->ref_dtbclk_khz = clk_mgr->base.boot_snapshot.dtbclk;
+       }
+
        if (clk_mgr->base.boot_snapshot.dprefclk != 0) {
                //ASSERT(clk_mgr->base.dprefclk_khz == clk_mgr->base.boot_snapshot.dprefclk);
                //clk_mgr->base.dprefclk_khz = clk_mgr->base.boot_snapshot.dprefclk;