From mboxrd@z Thu Jan 1 00:00:00 1970 From: Archit Taneja Subject: [PATCH 20/22] dt-bindings: msm/mdp: Provide details on MDP interface ports Date: Thu, 16 Jun 2016 17:06:45 +0530 Message-ID: <1466077007-26792-21-git-send-email-architt@codeaurora.org> References: <1466077007-26792-1-git-send-email-architt@codeaurora.org> Return-path: Received: from smtp.codeaurora.org ([198.145.29.96]:35325 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754311AbcFPLia (ORCPT ); Thu, 16 Jun 2016 07:38:30 -0400 In-Reply-To: <1466077007-26792-1-git-send-email-architt@codeaurora.org> Sender: linux-arm-msm-owner@vger.kernel.org List-Id: linux-arm-msm@vger.kernel.org To: robdclark@gmail.com Cc: robh@kernel.org, linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, Archit Taneja , devicetree@vger.kernel.org The MDP4/5 DT node now contains a list of ports that describe how it connects to external encoder interfaces like DSI and HDMI. These follow the standard of_graph bindings, and allow us to get rid of the 'connectors' phandle that contained a list of all the external encoders connected to MDP. The GPU phandle is removed too until we figure out what's the right way to specify it in DT. Cc: Rob Herring Cc: devicetree@vger.kernel.org Signed-off-by: Archit Taneja --- .../devicetree/bindings/display/msm/mdp4.txt | 68 ++++++++++++++++++++-- .../devicetree/bindings/display/msm/mdp5.txt | 48 ++++++++++++++- 2 files changed, 110 insertions(+), 6 deletions(-) diff --git a/Documentation/devicetree/bindings/display/msm/mdp4.txt b/Documentation/devicetree/bindings/display/msm/mdp4.txt index 1de9b17..3c341a1 100644 --- a/Documentation/devicetree/bindings/display/msm/mdp4.txt +++ b/Documentation/devicetree/bindings/display/msm/mdp4.txt @@ -10,7 +10,6 @@ Required properties: * "qcom,mdp4" - mdp4 - reg: Physical base address and length of the controller's registers. - interrupts: The interrupt signal from the display controller. -- connectors: array of phandles for output device(s) - clocks: device clocks See ../clocks/clock-bindings.txt for details. - clock-names: the following clocks are required. @@ -20,9 +19,23 @@ Required properties: * "lut_clk" * "hdmi_clk" * "tv_clk" +- ports: contains the list of output ports from MDP. These connect to interfaces + that are external to the MDP hardware, such as HDMI, DSI, EDP etc (LVDS is a + special case since it is a part of the MDP block itself). + + Each output port contains an endpoint that describes how it is connected to an + external interface. These are described by the standard properties documented + here: + Documentation/devicetree/bindings/graph.txt + Documentation/devicetree/bindings/media/video-interfaces.txt + + The output port mappings are: + Port 0 -> LCDC/LVDS + Port 1 -> DSI1 Cmd/Video + Port 2 -> DSI2 Cmd/Video + Port 3 -> DTV Optional properties: -- gpus: phandle for gpu device - clock-names: the following clocks are optional: * "lut_clk" @@ -31,12 +44,27 @@ Example: / { ... - mdp: qcom,mdp@5100000 { + hdmi: hdmi@4a00000 { + ... + ports { + ... + port@0 { + reg = <0>; + hdmi_in: endpoint { + remote-endpoint = <&mdp_dtv_out>; + }; + }; + ... + }; + ... + }; + + ... + + mdp: mdp@5100000 { compatible = "qcom,mdp4"; reg = <0x05100000 0xf0000>; interrupts = ; - connectors = <&hdmi>; - gpus = <&gpu>; clock-names = "core_clk", "iface_clk", @@ -50,5 +78,35 @@ Example: <&mmcc MDP_LUT_CLK>, <&mmcc HDMI_TV_CLK>, <&mmcc MDP_TV_CLK>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + mdp_lvds_out: endpoint { + }; + }; + + port@1 { + reg = <1>; + mdp_dsi1_out: endpoint { + }; + }; + + port@2 { + reg = <2>; + mdp_dsi2_out: endpoint { + }; + }; + + port@3 { + reg = <3>; + mdp_dtv_out: endpoint { + remote-endpoint = <&hdmi_in>; + }; + }; + }; }; }; diff --git a/Documentation/devicetree/bindings/display/msm/mdp5.txt b/Documentation/devicetree/bindings/display/msm/mdp5.txt index b395905..30c11ea 100644 --- a/Documentation/devicetree/bindings/display/msm/mdp5.txt +++ b/Documentation/devicetree/bindings/display/msm/mdp5.txt @@ -49,12 +49,36 @@ Required properties: - * "iface_clk" - * "core_clk" - * "vsync_clk" +- ports: contains the list of output ports from MDP. These connect to interfaces + that are external to the MDP hardware, such as HDMI, DSI, EDP etc (LVDS is a + special case since it is a part of the MDP block itself). + + Each output port contains an endpoint that describes how it is connected to an + external interface. These are described by the standard properties documented + here: + Documentation/devicetree/bindings/graph.txt + Documentation/devicetree/bindings/media/video-interfaces.txt + + The availability of output ports can vary across SoC revisions: + + For MSM8974 and APQ8084: + Port 0 -> MDP_INTF0 (eDP) + Port 1 -> MDP_INTF1 (DSI1) + Port 2 -> MDP_INTF2 (DSI2) + Port 3 -> MDP_INTF3 (HDMI) + + For MSM8916: + Port 0 -> MDP_INTF1 (DSI1) + + For MSM8994 and MSM8996: + Port 0 -> MDP_INTF1 (DSI1) + Port 1 -> MDP_INTF2 (DSI2) + Port 2 -> MDP_INTF3 (HDMI) Optional properties: - clock-names: the following clocks are optional: * "lut_clk" - Example: / { @@ -101,10 +125,32 @@ Example: "core_clk", "vsync_clk"; + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + mdp5_intf1_out: endpoint { + remote-endpoint = <&dsi0_in>; + }; + }; + }; }; dsi0: dsi@1a98000 { ... + ports { + ... + port@0 { + reg = <0>; + dsi0_in: endpoint { + remote-endpoint = <&mdp5_intf1_out>; + }; + }; + ... + }; + ... }; dsi_phy0: dsi-phy@1a98300 { -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, hosted by The Linux Foundation