drm/amd/display: Add initialitions for PLL2 clock source

[ Upstream commit c134c3cabae46a56ab2e1f5e5fa49405e1758838 ]

[Why]
Starting from 14nm, the PLL is built into the PHY and the PLL is mapped
to PHY on 1 to 1 basis. In the code, the DP port is mapped to a PLL that was not
initialized. This causes DP to HDMI dongle to not light up the display.

[How]
Initializations added for PLL2 when creating resources.

Signed-off-by: Isabel Zhang <isabel.zhang@amd.com>
Reviewed-by: Eric Yang <eric.yang2@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@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/dcn21/dcn21_resource.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
index b0e5e64..161bf7c 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
@@ -57,6 +57,7 @@
 #include "dcn20/dcn20_dccg.h"
 #include "dcn21_hubbub.h"
 #include "dcn10/dcn10_resource.h"
+#include "dce110/dce110_resource.h"
 
 #include "dcn20/dcn20_dwb.h"
 #include "dcn20/dcn20_mmhubbub.h"
@@ -824,6 +825,7 @@ static const struct dc_debug_options debug_defaults_diags = {
 enum dcn20_clk_src_array_id {
        DCN20_CLK_SRC_PLL0,
        DCN20_CLK_SRC_PLL1,
+       DCN20_CLK_SRC_PLL2,
        DCN20_CLK_SRC_TOTAL_DCN21
 };
 
@@ -1492,6 +1494,10 @@ static bool construct(
                        dcn21_clock_source_create(ctx, ctx->dc_bios,
                                CLOCK_SOURCE_COMBO_PHY_PLL1,
                                &clk_src_regs[1], false);
+       pool->base.clock_sources[DCN20_CLK_SRC_PLL2] =
+                       dcn21_clock_source_create(ctx, ctx->dc_bios,
+                               CLOCK_SOURCE_COMBO_PHY_PLL2,
+                               &clk_src_regs[2], false);
 
        pool->base.clk_src_count = DCN20_CLK_SRC_TOTAL_DCN21;