1 files changed, 42 insertions, 1 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index 321044bef71c..fa82ca74324e 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -114,6 +114,7 @@ static inline struct radeon_i2c_bus_rec radeon_lookup_i2c_gpio(struct radeon_dev
                         i2c.i2c_id = gpio->sucI2cId.ucAccess;
 
                         i2c.valid = true;
+                        break;
                 }
         }
 
@@ -345,7 +346,9 @@ const int object_connector_convert[] = {
         DRM_MODE_CONNECTOR_Unknown,
         DRM_MODE_CONNECTOR_Unknown,
         DRM_MODE_CONNECTOR_Unknown,
-        DRM_MODE_CONNECTOR_DisplayPort
+        DRM_MODE_CONNECTOR_DisplayPort,
+        DRM_MODE_CONNECTOR_eDP,
+        DRM_MODE_CONNECTOR_Unknown
 };
 
 bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev)
@@ -935,6 +938,43 @@ bool radeon_atom_get_clock_info(struct drm_device *dev)
         return false;
 }
 
+union igp_info {
+        struct _ATOM_INTEGRATED_SYSTEM_INFO info;
+        struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_2;
+};
+
+bool radeon_atombios_sideport_present(struct radeon_device *rdev)
+{
+        struct radeon_mode_info *mode_info = &rdev->mode_info;
+        int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
+        union igp_info *igp_info;
+        u8 frev, crev;
+        u16 data_offset;
+
+        atom_parse_data_header(mode_info->atom_context, index, NULL, &frev,
+                               &crev, &data_offset);
+
+        igp_info = (union igp_info *)(mode_info->atom_context->bios +
+                                      data_offset);
+
+        if (igp_info) {
+                switch (crev) {
+                case 1:
+                        if (igp_info->info.ucMemoryType & 0xf0)
+                                return true;
+                        break;
+                case 2:
+                        if (igp_info->info_2.ucMemoryType & 0x0f)
+                                return true;
+                        break;
+                default:
+                        DRM_ERROR("Unsupported IGP table: %d %d\n", frev, crev);
+                        break;
+                }
+        }
+        return false;
+}
+
 bool radeon_atombios_get_tmds_info(struct radeon_encoder *encoder,
                                    struct radeon_encoder_int_tmds *tmds)
 {
@@ -1026,6 +1066,7 @@ static struct radeon_atom_ss *radeon_atombios_get_ss_info(struct
                                 ss->delay = ss_info->asSS_Info[i].ucSS_Delay;
                                 ss->range = ss_info->asSS_Info[i].ucSS_Range;
                                 ss->refdiv = ss_info->asSS_Info[i].ucRecommendedRef_Div;
+                                break;
                         }
                 }
         }