drm/amd/display: get dprefclk ss info from integration info table

From Charlene Liu
a5ba95c226b5c25cd5c8b9df29a1953c85a1531e in linux-6.6.y/6.6.13
51e7b64690776a9981355428b537af9048308a95 in mainline linux

diff --git a/sys/dev/pci/drm/amd/display/dc/bios/bios_parser2.c b/sys/dev/pci/drm/amd/display/dc/bios/bios_parser2.c
index 484d62b..518c567 100644 (file)
--- a/sys/dev/pci/drm/amd/display/dc/bios/bios_parser2.c
+++ b/sys/dev/pci/drm/amd/display/dc/bios/bios_parser2.c
@@ -1015,13 +1015,20 @@ static enum bp_result get_ss_info_v4_5(
                DC_LOG_BIOS("AS_SIGNAL_TYPE_HDMI ss_percentage: %d\n", ss_info->spread_spectrum_percentage);
                break;
        case AS_SIGNAL_TYPE_DISPLAY_PORT:
-               ss_info->spread_spectrum_percentage =
+               if (bp->base.integrated_info) {
+                       DC_LOG_BIOS("gpuclk_ss_percentage (unit of 0.001 percent): %d\n", bp->base.integrated_info->gpuclk_ss_percentage);
+                       ss_info->spread_spectrum_percentage =
+                                       bp->base.integrated_info->gpuclk_ss_percentage;
+                       ss_info->type.CENTER_MODE =
+                                       bp->base.integrated_info->gpuclk_ss_type;
+               } else {
+                       ss_info->spread_spectrum_percentage =
                                disp_cntl_tbl->dp_ss_percentage;
-               ss_info->spread_spectrum_range =
+                       ss_info->spread_spectrum_range =
                                disp_cntl_tbl->dp_ss_rate_10hz * 10;
-               if (disp_cntl_tbl->dp_ss_mode & ATOM_SS_CENTRE_SPREAD_MODE)
-                       ss_info->type.CENTER_MODE = true;
-
+                       if (disp_cntl_tbl->dp_ss_mode & ATOM_SS_CENTRE_SPREAD_MODE)
+                               ss_info->type.CENTER_MODE = true;
+               }
                DC_LOG_BIOS("AS_SIGNAL_TYPE_DISPLAY_PORT ss_percentage: %d\n", ss_info->spread_spectrum_percentage);
                break;
        case AS_SIGNAL_TYPE_GPU_PLL:
@@ -2826,6 +2833,8 @@ static enum bp_result get_integrated_info_v2_2(
        info->ma_channel_number = info_v2_2->umachannelnumber;
        info->dp_ss_control =
                le16_to_cpu(info_v2_2->reserved1);
+       info->gpuclk_ss_percentage = info_v2_2->gpuclk_ss_percentage;
+       info->gpuclk_ss_type = info_v2_2->gpuclk_ss_type;
 
        for (i = 0; i < NUMBER_OF_UCHAR_FOR_GUID; ++i) {
                info->ext_disp_conn_info.gu_id[i] =

diff --git a/sys/dev/pci/drm/amd/display/include/grph_object_ctrl_defs.h b/sys/dev/pci/drm/amd/display/include/grph_object_ctrl_defs.h
index bc96d02..813463f 100644 (file)
--- a/sys/dev/pci/drm/amd/display/include/grph_object_ctrl_defs.h
+++ b/sys/dev/pci/drm/amd/display/include/grph_object_ctrl_defs.h
@@ -417,6 +417,8 @@ struct integrated_info {
        /* V2.1 */
        struct edp_info edp1_info;
        struct edp_info edp2_info;
+       uint32_t gpuclk_ss_percentage;
+       uint32_t gpuclk_ss_type;
 };
 
 /*