From: Dillon Varone <Dillon.Varone@amd.com>
Date: Wed, 12 Feb 2025 22:06:42 +0000 (-0500)
Subject: drm/amd/display: Fix p-state type when p-state is unsupported
X-Git-Tag: v6.14.9~496
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=49f0054e18102774db7f5bd0cf847b5219f6c3fd;p=thirdparty%2Fkernel%2Fstable.git

drm/amd/display: Fix p-state type when p-state is unsupported

[ Upstream commit a025f424af0407b7561bd5e6217295dde3abbc2e ]

[WHY&HOW]
P-state type would remain on previously used when unsupported which
causes confusion in logging and visual confirm, so set back to zero
when unsupported.

Reviewed-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: Dillon Varone <Dillon.Varone@amd.com>
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c
index a49604b7701f7..1406ee4bff801 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c
@@ -563,6 +563,7 @@ void set_p_state_switch_method(
 	if (!dc->ctx || !dc->ctx->dmub_srv || !pipe_ctx || !vba)
 		return;
 
+	pipe_ctx->p_state_type = P_STATE_UNKNOWN;
 	if (vba->DRAMClockChangeSupport[vba->VoltageLevel][vba->maxMpcComb] !=
 			dm_dram_clock_change_unsupported) {
 		/* MCLK switching is supported */