[PATCH 11/27] drm/amd/display: Fix DP2 SE and LE SYMCLK selection for B0 PHY

[Agustin Gutierrez]

From: Hansen <hansen.dso...@amd.com>

Remap phyd32clk to PHYF and PHYG for B0, PHYC and PHYD are unused

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlaus...@amd.com>
Acked-by: Agustin Gutierrez Sanchez <agustin.gutier...@amd.com>
Signed-off-by: Hansen <hansen.dso...@amd.com>
---
 .../gpu/drm/amd/display/dc/dcn31/dcn31_dccg.c   | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_dccg.c 
b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_dccg.c
index 582c500ecb49..152adb597d48 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_dccg.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_dccg.c
@@ -26,6 +26,7 @@
 #include "reg_helper.h"
 #include "core_types.h"
 #include "dcn31_dccg.h"
+#include "dal_asic_id.h"
 
 #define TO_DCN_DCCG(dccg)\
        container_of(dccg, struct dcn_dccg, base)
@@ -80,6 +81,18 @@ static void dccg31_update_dpp_dto(struct dccg *dccg, int 
dpp_inst, int req_dppcl
        dccg->pipe_dppclk_khz[dpp_inst] = req_dppclk;
 }
 
+static enum phyd32clk_clock_source get_phy_mux_symclk(
+               struct dcn_dccg *dccg_dcn,
+               enum phyd32clk_clock_source src)
+{
+       if (dccg_dcn->base.ctx->asic_id.hw_internal_rev == YELLOW_CARP_B0) {
+               if (src == PHYD32CLKC)
+                       src = PHYD32CLKF;
+               if (src == PHYD32CLKD)
+                       src = PHYD32CLKG;
+       }
+       return src;
+}
 
 void dccg31_set_dpstreamclk(
                struct dccg *dccg,
@@ -119,6 +132,8 @@ void dccg31_enable_symclk32_se(
 {
        struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg);
 
+       phyd32clk = get_phy_mux_symclk(dccg_dcn, phyd32clk);
+
        /* select one of the PHYD32CLKs as the source for symclk32_se */
        switch (hpo_se_inst) {
        case 0:
@@ -188,6 +203,8 @@ void dccg31_enable_symclk32_le(
 {
        struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg);
 
+       phyd32clk = get_phy_mux_symclk(dccg_dcn, phyd32clk);
+
        /* select one of the PHYD32CLKs as the source for symclk32_le */
        switch (hpo_le_inst) {
        case 0:
-- 
2.25.1