From: Feifei Xu <Feifei.Xu@amd.com>
Date: Fri, 20 Apr 2018 21:03:10 +0800
Subject: drm/amd/display: Remove COMBO_DISPLAY_PLL0 from Vega20
Git-commit: 14a13a0ef0665924a5e87947309b6c9abfb41903
Patch-mainline: v4.18-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
Signed-off-by: Jerry (Fangzhi) Zuo <Jerry.Zuo@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Feifei Xu <Feifei.Xu@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c | 11 ++++++++++-
drivers/gpu/drm/amd/display/include/dal_asic_id.h | 6 ++++++
2 files changed, 16 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c
@@ -35,7 +35,7 @@
#endif
#include "core_types.h"
#include "dc_types.h"
-
+#include "dal_asic_id.h"
#define TO_DCE_CLOCKS(clocks)\
container_of(clocks, struct dce_disp_clk, base)
@@ -413,9 +413,18 @@ static int dce112_set_clock(
/*VBIOS will determine DPREFCLK frequency, so we don't set it*/
dce_clk_params.target_clock_frequency = 0;
dce_clk_params.clock_type = DCECLOCK_TYPE_DPREFCLK;
+#ifndef CONFIG_DRM_AMD_DC_VG20
dce_clk_params.flags.USE_GENLOCK_AS_SOURCE_FOR_DPREFCLK =
(dce_clk_params.pll_id ==
CLOCK_SOURCE_COMBO_DISPLAY_PLL0);
+#else
+ if (!ASICREV_IS_VEGA20_P(clk->ctx->asic_id.hw_internal_rev))
+ dce_clk_params.flags.USE_GENLOCK_AS_SOURCE_FOR_DPREFCLK =
+ (dce_clk_params.pll_id ==
+ CLOCK_SOURCE_COMBO_DISPLAY_PLL0);
+ else
+ dce_clk_params.flags.USE_GENLOCK_AS_SOURCE_FOR_DPREFCLK = false;
+#endif
bp->funcs->set_dce_clock(bp, &dce_clk_params);
--- a/drivers/gpu/drm/amd/display/include/dal_asic_id.h
+++ b/drivers/gpu/drm/amd/display/include/dal_asic_id.h
@@ -117,6 +117,12 @@
((rev >= STONEY_A0) && (rev < CZ_UNKNOWN))
/* DCE12 */
+#define AI_UNKNOWN 0xFF
+
+#ifdef CONFIG_DRM_AMD_DC_VG20
+#define AI_VEGA20_P_A0 40
+#define ASICREV_IS_VEGA20_P(eChipRev) ((eChipRev >= AI_VEGA20_P_A0) && (eChipRev < AI_UNKNOWN))
+#endif
#define AI_GREENLAND_P_A0 1
#define AI_GREENLAND_P_A1 2