drm2/radeon/radeon_i2c.c

45 bool radeon_ddc_probe(struct radeon_connector *radeon_connector, bool use_aux)
66 	if (radeon_connector->router.ddc_valid)
67 		radeon_router_select_ddc_port(radeon_connector);
70 		struct radeon_connector_atom_dig *dig = radeon_connector->con_priv;
73 		ret = iicbus_transfer(radeon_connector->ddc_bus->adapter, msgs, 2);
1330 void radeon_router_select_ddc_port(struct radeon_connector *radeon_connector)
1334 	if (!radeon_connector->router.ddc_valid)
1337 	if (!radeon_connector->router_bus)
1340 	radeon_i2c_get_byte(radeon_connector->router_bus,
1341 			    radeon_connector->router.i2c_addr,
1343 	val &= ~radeon_connector->router.ddc_mux_control_pin;
1344 	radeon_i2c_put_byte(radeon_connector->router_bus,
1345 			    radeon_connector->router.i2c_addr,
1347 	radeon_i2c_get_byte(radeon_connector->router_bus,
1348 			    radeon_connector->router.i2c_addr,
1350 	val &= ~radeon_connector->router.ddc_mux_control_pin;
1351 	val |= radeon_connector->router.ddc_mux_state;
1352 	radeon_i2c_put_byte(radeon_connector->router_bus,
1353 			    radeon_connector->router.i2c_addr,
1358 void radeon_router_select_cd_port(struct radeon_connector *radeon_connector)
1362 	if (!radeon_connector->router.cd_valid)
1365 	if (!radeon_connector->router_bus)
1368 	radeon_i2c_get_byte(radeon_connector->router_bus,
1369 			    radeon_connector->router.i2c_addr,
1371 	val &= ~radeon_connector->router.cd_mux_control_pin;
1372 	radeon_i2c_put_byte(radeon_connector->router_bus,
1373 			    radeon_connector->router.i2c_addr,
1375 	radeon_i2c_get_byte(radeon_connector->router_bus,
1376 			    radeon_connector->router.i2c_addr,
1378 	val &= ~radeon_connector->router.cd_mux_control_pin;
1379 	val |= radeon_connector->router.cd_mux_state;
1380 	radeon_i2c_put_byte(radeon_connector->router_bus,
1381 			    radeon_connector->router.i2c_addr,