Am Freitag, 16. Februar 2018, 13:09:56 CET schrieb Enric Balletbo i Serra: > From: Chris Zhong <zyw@xxxxxxxxxxxxxx> > > There are 2 Type-c PHYs in RK3399, but only one DP controller. Hence > only one PHY can connect to DP controller at one time, the other should > be disconnected. The GRF_SOC_CON26 register has a switch bit to do it, > set this bit means enable PHY 1, clear this bit means enable PHY 0. > > If the board has 2 Type-C ports, the DP driver get the phy id from > devm_of_phy_get_by_index, and then control this switch according to > this id. But some others board only has one Type-C port, it may be PHY 0 > or PHY 1. The dts node id can not tell us the correct PHY id. Hence move > this switch to PHY driver, the PHY driver can distinguish between PHY 0 > and PHY 1, and then write the correct register bit. > > Signed-off-by: Chris Zhong <zyw@xxxxxxxxxxxxxx> > Signed-off-by: Enric Balletbo i Serra <enric.balletbo@xxxxxxxxxxxxx> Reviewed-by: Heiko Stuebner <heiko@xxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
