drm/amd/display: Read resource_straps from registers for DCE12

Now that the registers exist, assign them to the resource_straps struct.

v2: Fix indentation
v3: Fix trailing whitespace and checkpatch warnings.

bug: https://bugs.freedesktop.org/show_bug.cgi?id=103404
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 13 insertions, 6 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c b/drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c
index 3ed28a870e20..5c48c22d9d98 100644
--- a/drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c
@@ -501,12 +501,19 @@ static void read_dce_straps(
         struct dc_context *ctx,
         struct resource_straps *straps)
 {
-        /* TODO: Registers are missing */
-        /*REG_GET_2(CC_DC_HDMI_STRAPS,
-                        HDMI_DISABLE, &straps->hdmi_disable,
-                        AUDIO_STREAM_NUMBER, &straps->audio_stream_number);
-
-        REG_GET(DC_PINSTRAPS, DC_PINSTRAPS_AUDIO, &straps->dc_pinstraps_audio);*/
+        uint32_t reg_val = dm_read_reg_soc15(ctx, mmCC_DC_MISC_STRAPS, 0);
+
+        straps->audio_stream_number = get_reg_field_value(reg_val,
+                                                          CC_DC_MISC_STRAPS,
+                                                          AUDIO_STREAM_NUMBER);
+        straps->hdmi_disable = get_reg_field_value(reg_val,
+                                                   CC_DC_MISC_STRAPS,
+                                                   HDMI_DISABLE);
+
+        reg_val = dm_read_reg_soc15(ctx, mmDC_PINSTRAPS, 0);
+        straps->dc_pinstraps_audio = get_reg_field_value(reg_val,
+                                                         DC_PINSTRAPS,
+                                                         DC_PINSTRAPS_AUDIO);
 }
 
 static struct audio *create_audio(