From mboxrd@z Thu Jan 1 00:00:00 1970 From: zyw@rock-chips.com (Chris Zhong) Date: Fri, 10 Feb 2017 15:44:10 +0800 Subject: [PATCH 0/4] Move DP phy switch to PHY driver Message-ID: <1486712654-15431-1-git-send-email-zyw@rock-chips.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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. Chris Zhong (4): Documentation: bindings: add uphy-dp-sel for Rockchip USB Type-C PHY arm64: dts: rockchip: add rockchip,uphy-dp-sel for Type-C phy phy: rockchip-typec: support DP phy switch drm/rockchip: cdn-dp: remove the DP phy switch Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt | 5 +++++ arch/arm64/boot/dts/rockchip/rk3399.dtsi | 2 ++ drivers/gpu/drm/rockchip/cdn-dp-core.c | 7 ------- drivers/phy/phy-rockchip-typec.c | 9 +++++++++ 4 files changed, 16 insertions(+), 7 deletions(-) -- 2.6.3