291 						      &radeon_connector->ddc_bus->aux.ddc);  in radeon_connector_get_edid()
300 							      &radeon_connector->ddc_bus->aux.ddc);  in radeon_connector_get_edid()
315 		/* don't fetch the edid from the vbios if ddc fails and runpm is  in radeon_connector_get_edid()
878 		/* don't fetch the edid from the vbios if ddc fails and runpm is  in radeon_lvds_detect()
1039 			 * with a shared ddc line (often vga + hdmi)  in radeon_vga_detect()
1216  * Do a DDC probe, if DDC probe passes, get the full EDID so
1218  * If the monitor is an analog monitor or we got no DDC,
1220  * If we got no DDC, we do load detection on the DAC encoder object.
1221  * If we got analog DDC or load detection passes on the DAC encoder
1258 		/* Sometimes the pins required for the DDC probe on DVI  in radeon_dvi_detect()
1260 		 * for HPD do. If the DDC probe fails even though we had an HPD  in radeon_dvi_detect()
1264 			DRM_DEBUG_KMS("hpd detected without ddc, retrying in 1 second\n");  in radeon_dvi_detect()
1284 				DRM_ERROR("%s: detected RS690 floating bus bug, stopping ddc detect\n",  in radeon_dvi_detect()
1296 			 * with a shared ddc line (often vga + hdmi)  in radeon_dvi_detect()
1305 			 * shared DDC line and we have boards with DVI-D + HDMI with a shared  in radeon_dvi_detect()
1306 			 * DDC line.  The latter is more complex because with DVI<->HDMI adapters  in radeon_dvi_detect()
1362 						/* deal with analog monitors without DDC */  in radeon_dvi_detect()
1537 			/* need to setup ddc on the bridge */  in radeon_dp_get_modes()
1571 		/* need to setup ddc on the bridge */  in radeon_dp_get_modes()
1670 			/* don't fetch the edid from the vbios if ddc fails and runpm is  in radeon_dp_detect()
1694 			/* setup ddc on the bridge */  in radeon_dp_detect()
1697 			if (radeon_ddc_probe(radeon_connector, true)) /* try DDC */  in radeon_dp_detect()
1715 				/* try non-aux ddc (DP to DVI/HDMI/etc. adapter) */  in radeon_dp_detect()
1845 	struct i2c_adapter *ddc = NULL;  in radeon_add_atom_connector()  local
1925 				ddc = &radeon_connector->ddc_bus->adapter;  in radeon_add_atom_connector()
1927 				DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n");  in radeon_add_atom_connector()
1937 						    ddc);  in radeon_add_atom_connector()
1962 						    ddc);  in radeon_add_atom_connector()
2012 						    ddc);  in radeon_add_atom_connector()
2029 					DRM_ERROR("VGA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");  in radeon_add_atom_connector()
2031 					ddc = &radeon_connector->ddc_bus->adapter;  in radeon_add_atom_connector()
2036 						    ddc);  in radeon_add_atom_connector()
2059 					DRM_ERROR("DVIA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");  in radeon_add_atom_connector()
2061 					ddc = &radeon_connector->ddc_bus->adapter;  in radeon_add_atom_connector()
2066 						    ddc);  in radeon_add_atom_connector()
2095 					DRM_ERROR("DVI: Failed to assign ddc bus! Check dmesg for i2c errors.\n");  in radeon_add_atom_connector()
2097 					ddc = &radeon_connector->ddc_bus->adapter;  in radeon_add_atom_connector()
2102 						    ddc);  in radeon_add_atom_connector()
2157 					DRM_ERROR("HDMI: Failed to assign ddc bus! Check dmesg for i2c errors.\n");  in radeon_add_atom_connector()
2159 					ddc = &radeon_connector->ddc_bus->adapter;  in radeon_add_atom_connector()
2164 						    ddc);  in radeon_add_atom_connector()
2213 					ddc = &radeon_connector->ddc_bus->adapter;  in radeon_add_atom_connector()
2215 					DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n");  in radeon_add_atom_connector()
2221 						    ddc);  in radeon_add_atom_connector()
2268 					ddc = &radeon_connector->ddc_bus->adapter;  in radeon_add_atom_connector()
2270 					DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n");  in radeon_add_atom_connector()
2276 						    ddc);  in radeon_add_atom_connector()
2291 						    ddc);  in radeon_add_atom_connector()
2314 					DRM_ERROR("LVDS: Failed to assign ddc bus! Check dmesg for i2c errors.\n");  in radeon_add_atom_connector()
2316 					ddc = &radeon_connector->ddc_bus->adapter;  in radeon_add_atom_connector()
2321 						    ddc);  in radeon_add_atom_connector()
2366 	struct i2c_adapter *ddc = NULL;  in radeon_add_legacy_connector()  local
2404 				DRM_ERROR("VGA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");  in radeon_add_legacy_connector()
2406 				ddc = &radeon_connector->ddc_bus->adapter;  in radeon_add_legacy_connector()
2411 					    ddc);  in radeon_add_legacy_connector()
2426 				DRM_ERROR("DVIA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");  in radeon_add_legacy_connector()
2428 				ddc = &radeon_connector->ddc_bus->adapter;  in radeon_add_legacy_connector()
2433 					    ddc);  in radeon_add_legacy_connector()
2449 				DRM_ERROR("DVI: Failed to assign ddc bus! Check dmesg for i2c errors.\n");  in radeon_add_legacy_connector()
2451 				ddc = &radeon_connector->ddc_bus->adapter;  in radeon_add_legacy_connector()
2456 					    ddc);  in radeon_add_legacy_connector()
2477 					    ddc);  in radeon_add_legacy_connector()
2502 				DRM_ERROR("LVDS: Failed to assign ddc bus! Check dmesg for i2c errors.\n");  in radeon_add_legacy_connector()
2504 				ddc = &radeon_connector->ddc_bus->adapter;  in radeon_add_legacy_connector()
2509 					    ddc);  in radeon_add_legacy_connector()