From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751712AbeEUJh3 (ORCPT ); Mon, 21 May 2018 05:37:29 -0400 Received: from mail-pf0-f194.google.com ([209.85.192.194]:36477 "EHLO mail-pf0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751368AbeEUJhY (ORCPT ); Mon, 21 May 2018 05:37:24 -0400 X-Google-Smtp-Source: AB8JxZpjpn+JuYiDUSoiKBUALyV2Vw4rk0cNKPsJVnC1VFGt3SZYbehDR4QDuo0j7AQhpZDM7eRQJQ== From: Lin Huang To: seanpaul@chromium.org, airlied@linux.ie, zyw@rock-chips.com, kishon@ti.com Cc: dianders@chromium.org, briannorris@chromium.org, linux-rockchip@lists.infradead.org, heiko@sntech.de, daniel.vetter@intel.com, jani.nikula@linux.intel.com, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, eballetbo@gmail.com, robh+dt@kernel.org, devicetree@vger.kernel.org, Lin Huang Subject: [PATCH v6 2/5] Documentation: dt-bindings: phy: add phy_config for Rockchip USB Type-C PHY Date: Mon, 21 May 2018 17:37:01 +0800 Message-Id: <1526895424-22894-2-git-send-email-hl@rock-chips.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1526895424-22894-1-git-send-email-hl@rock-chips.com> References: <1526895424-22894-1-git-send-email-hl@rock-chips.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org If want to do training outside DP Firmware, need phy voltage swing and pre_emphasis value. Signed-off-by: Lin Huang --- Changes in v2: - None Changes in v3: - modify property description and add this property to Example Changes in v4: - None Changes in v5: - None Changes in v6: - change rockchip,phy_config to rockchip,phy-config and descript it in detail. .../devicetree/bindings/phy/phy-rockchip-typec.txt | 36 +++++++++++++++++++++- 1 file changed, 35 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt index 960da7f..40d5e7a 100644 --- a/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt +++ b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt @@ -17,7 +17,11 @@ Required properties: Optional properties: - extcon : extcon specifier for the Power Delivery - + - rockchip,phy-config : A list of voltage swing(mV) and pre-emphasis + (dB) pairs. They are 3 blocks of 4 entries and + correspond to s0p0 ~ s0p3, s1p0 ~ s1p3, + s2p0 ~ s2p3, s3p0 ~ s2p3 swing and pre-emphasis + values. Required nodes : a sub-node is required for each port the phy provides. The sub-node name is used to identify dp or usb3 port, and shall be the following entries: @@ -50,6 +54,21 @@ Example: <&cru SRST_P_UPHY0_TCPHY>; reset-names = "uphy", "uphy-pipe", "uphy-tcphy"; + rockchip,phy-config = <0x2a 0x00>, + <0x1f 0x15>, + <0x14 0x22>, + <0x02 0x2b>, + + <0x21 0x00>, + <0x12 0x15>, + <0x02 0x22>, + <0 0>, + + <0x15 0x00>, + <0x00 0x15>, + <0 0>, + <0 0>; + tcphy0_dp: dp-port { #phy-cells = <0>; }; @@ -74,6 +93,21 @@ Example: <&cru SRST_P_UPHY1_TCPHY>; reset-names = "uphy", "uphy-pipe", "uphy-tcphy"; + rockchip,phy-config = <0x2a 0x00>, + <0x1f 0x15>, + <0x14 0x22>, + <0x02 0x2b>, + + <0x21 0x00>, + <0x12 0x15>, + <0x02 0x22>, + <0 0>, + + <0x15 0x00>, + <0x00 0x15>, + <0 0>, + <0 0>; + tcphy1_dp: dp-port { #phy-cells = <0>; }; -- 2.7.4