275 						      &radeon_connector->ddc_bus->aux.ddc);  in radeon_connector_get_edid()
284 							      &radeon_connector->ddc_bus->aux.ddc);  in radeon_connector_get_edid()
299 		/* don't fetch the edid from the vbios if ddc fails and runpm is  in radeon_connector_get_edid()
863 		/* don't fetch the edid from the vbios if ddc fails and runpm is  in radeon_lvds_detect()
1024 			 * with a shared ddc line (often vga + hdmi)  in radeon_vga_detect()
1203  * Do a DDC probe, if DDC probe passes, get the full EDID so
1205  * If the monitor is an analog monitor or we got no DDC,
1207  * If we got no DDC, we do load detection on the DAC encoder object.
1208  * If we got analog DDC or load detection passes on the DAC encoder
1245 		/* Sometimes the pins required for the DDC probe on DVI  in radeon_dvi_detect()
1247 		 * for HPD do. If the DDC probe fails even though we had an HPD  in radeon_dvi_detect()
1251 			DRM_DEBUG_KMS("hpd detected without ddc, retrying in 1 second\n");  in radeon_dvi_detect()
1271 				DRM_ERROR("%s: detected RS690 floating bus bug, stopping ddc detect\n",  in radeon_dvi_detect()
1283 			 * with a shared ddc line (often vga + hdmi)  in radeon_dvi_detect()
1292 			 * shared DDC line and we have boards with DVI-D + HDMI with a shared  in radeon_dvi_detect()
1293 			 * DDC line.  The latter is more complex because with DVI<->HDMI adapters  in radeon_dvi_detect()
1349 						/* deal with analog monitors without DDC */  in radeon_dvi_detect()
1524 			/* need to setup ddc on the bridge */  in radeon_dp_get_modes()
1558 		/* need to setup ddc on the bridge */  in radeon_dp_get_modes()
1657 			/* don't fetch the edid from the vbios if ddc fails and runpm is  in radeon_dp_detect()
1681 			/* setup ddc on the bridge */  in radeon_dp_detect()
1684 			if (radeon_ddc_probe(radeon_connector, true)) /* try DDC */  in radeon_dp_detect()
1702 				/* try non-aux ddc (DP to DVI/HDMI/etc. adapter) */  in radeon_dp_detect()
1849 	struct i2c_adapter *ddc = NULL;  in radeon_add_atom_connector()  local
1929 				ddc = &radeon_connector->ddc_bus->adapter;  in radeon_add_atom_connector()
1931 				DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n");  in radeon_add_atom_connector()
1941 						    ddc);  in radeon_add_atom_connector()
1966 						    ddc);  in radeon_add_atom_connector()
2016 						    ddc);  in radeon_add_atom_connector()
2033 					DRM_ERROR("VGA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");  in radeon_add_atom_connector()
2035 					ddc = &radeon_connector->ddc_bus->adapter;  in radeon_add_atom_connector()
2040 						    ddc);  in radeon_add_atom_connector()
2063 					DRM_ERROR("DVIA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");  in radeon_add_atom_connector()
2065 					ddc = &radeon_connector->ddc_bus->adapter;  in radeon_add_atom_connector()
2070 						    ddc);  in radeon_add_atom_connector()
2099 					DRM_ERROR("DVI: Failed to assign ddc bus! Check dmesg for i2c errors.\n");  in radeon_add_atom_connector()
2101 					ddc = &radeon_connector->ddc_bus->adapter;  in radeon_add_atom_connector()
2106 						    ddc);  in radeon_add_atom_connector()
2161 					DRM_ERROR("HDMI: Failed to assign ddc bus! Check dmesg for i2c errors.\n");  in radeon_add_atom_connector()
2163 					ddc = &radeon_connector->ddc_bus->adapter;  in radeon_add_atom_connector()
2168 						    ddc);  in radeon_add_atom_connector()
2217 					ddc = &radeon_connector->ddc_bus->adapter;  in radeon_add_atom_connector()
2219 					DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n");  in radeon_add_atom_connector()
2225 						    ddc);  in radeon_add_atom_connector()
2272 					ddc = &radeon_connector->ddc_bus->adapter;  in radeon_add_atom_connector()
2274 					DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n");  in radeon_add_atom_connector()
2280 						    ddc);  in radeon_add_atom_connector()
2295 						    ddc);  in radeon_add_atom_connector()
2318 					DRM_ERROR("LVDS: Failed to assign ddc bus! Check dmesg for i2c errors.\n");  in radeon_add_atom_connector()
2320 					ddc = &radeon_connector->ddc_bus->adapter;  in radeon_add_atom_connector()
2325 						    ddc);  in radeon_add_atom_connector()
2370 	struct i2c_adapter *ddc = NULL;  in radeon_add_legacy_connector()  local
2408 				DRM_ERROR("VGA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");  in radeon_add_legacy_connector()
2410 				ddc = &radeon_connector->ddc_bus->adapter;  in radeon_add_legacy_connector()
2415 					    ddc);  in radeon_add_legacy_connector()
2430 				DRM_ERROR("DVIA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");  in radeon_add_legacy_connector()
2432 				ddc = &radeon_connector->ddc_bus->adapter;  in radeon_add_legacy_connector()
2437 					    ddc);  in radeon_add_legacy_connector()
2453 				DRM_ERROR("DVI: Failed to assign ddc bus! Check dmesg for i2c errors.\n");  in radeon_add_legacy_connector()
2455 				ddc = &radeon_connector->ddc_bus->adapter;  in radeon_add_legacy_connector()
2460 					    ddc);  in radeon_add_legacy_connector()
2481 					    ddc);  in radeon_add_legacy_connector()
2506 				DRM_ERROR("LVDS: Failed to assign ddc bus! Check dmesg for i2c errors.\n");  in radeon_add_legacy_connector()
2508 				ddc = &radeon_connector->ddc_bus->adapter;  in radeon_add_legacy_connector()
2513 					    ddc);  in radeon_add_legacy_connector()