From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752388AbdBJHwL (ORCPT ); Fri, 10 Feb 2017 02:52:11 -0500 Received: from mail-pf0-f194.google.com ([209.85.192.194]:33632 "EHLO mail-pf0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752335AbdBJHwH (ORCPT ); Fri, 10 Feb 2017 02:52:07 -0500 From: Chris Zhong To: dri-devel@lists.freedesktop.org, kishon@ti.com, robh@kernel.org, linux-rockchip@lists.infradead.org Cc: linux-kernel@vger.kernel.org, mark.yao@rock-chips.com, groeck@chromium.org, seanpaul@chromium.org, zyw@rock-chips.com, William wu , Rob Herring , David Airlie , Shawn Lin , Catalin Marinas , Elaine Zhang , David Wu , Heiko Stuebner , Kever Yang , Brian Norris , Tomasz Figa , Douglas Anderson , Will Deacon , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Jianqun Xu , Caesar Wang , Mark Rutland Subject: [PATCH 0/4] Move DP phy switch to PHY driver Date: Fri, 10 Feb 2017 15:44:10 +0800 Message-Id: <1486712654-15431-1-git-send-email-zyw@rock-chips.com> X-Mailer: git-send-email 2.6.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.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