Commit 85e41f1e authored Jun 07, 2023 by Daniel Miess Committed by Alex Deucher Jun 23, 2023

drm/amd/display: disable RCO for DCN314



[Why]
RCO is causing error messages on some DCN314 systems

[How]
Force disable RCO for DCN314

Fixes: 17fbdbda ("drm/amd/display: Enable dcn314 DPP RCO")
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Daniel Miess <daniel.miess@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

parent 65dae8ff

drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dccg.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -332,7 +332,7 @@ static void dccg314_dpp_root_clock_control(
		{
		struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg);

		if (dccg->dpp_clock_gated[dpp_inst] == clock_on)
		if (dccg->dpp_clock_gated[dpp_inst] != clock_on)
		return;

		if (clock_on) {

drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1908,6 +1908,9 @@ static bool dcn314_resource_construct(
		dc->debug.disable_dpp_power_gate = true;
		dc->debug.disable_hubp_power_gate = true;

		/* Disable root clock optimization */
		dc->debug.root_clock_optimization.u32All = 0;

		// Init the vm_helper
		if (dc->vm_helper)
		vm_helper_init(dc->vm_helper, 16);