From patchwork Fri May 21 12:49:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vinod Koul X-Patchwork-Id: 444821 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 672B1C433B4 for ; Fri, 21 May 2021 12:50:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4C7E9613E2 for ; Fri, 21 May 2021 12:50:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234319AbhEUMvk (ORCPT ); Fri, 21 May 2021 08:51:40 -0400 Received: from mail.kernel.org ([198.145.29.99]:33630 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230081AbhEUMvb (ORCPT ); Fri, 21 May 2021 08:51:31 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 14B946128A; Fri, 21 May 2021 12:50:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1621601408; bh=evW5pHUN/T4rGcgEYxzNl0VVIeE5qNWtjDjSxJvpPkQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=swpkH1OlMp8m3dC3Op2knzSP+7dNpwV+GLpnTqKTP6Rv9cOr4ZuDrQg1RerHShygz GWLDF2inM+t6mnDbG2UCW7r6z/TwN1q7YgMWTOaDoVRGulMbiBXG8zG4/5b91XLUTP rDwf1hQ18aLr1h+gRkhRnfQT8Lqeyrv1Hyxyq9Mt1y1Imwn3MLM8ZTGY/hqHpwX4uB TeSq+8VtHdoDVNt4FL7T80PylE2tHdIJvqLYj8bApZz92UPSMmy3eukhXnaatygXaK Jd9UQgB4pJ7MrivQRrAButxeohwGiHLp1cdP/JL73buJlKi0PQaKtPGYBKrDtL3LMS uVKjiCutUDDQg== From: Vinod Koul To: Rob Clark Cc: linux-arm-msm@vger.kernel.org, Bjorn Andersson , Vinod Koul , David Airlie , Daniel Vetter , Jonathan Marek , Dmitry Baryshkov , Abhinav Kumar , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, Rob Herring , devicetree@vger.kernel.org Subject: [RFC PATCH 02/13] dt-bindings: msm/dsi: Document Display Stream Compression (DSC) parameters Date: Fri, 21 May 2021 18:19:31 +0530 Message-Id: <20210521124946.3617862-3-vkoul@kernel.org> X-Mailer: git-send-email 2.26.3 In-Reply-To: <20210521124946.3617862-1-vkoul@kernel.org> References: <20210521124946.3617862-1-vkoul@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org DSC enables streams to be compressed before we send to panel. This requires DSC enabled encoder and a panel to be present. So we add this information in board DTS and find if DSC can be enabled and the parameters required to configure DSC are added to binding document along with example Signed-off-by: Vinod Koul --- .../devicetree/bindings/display/msm/dsi.txt | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/Documentation/devicetree/bindings/display/msm/dsi.txt b/Documentation/devicetree/bindings/display/msm/dsi.txt index b9a64d3ff184..83d2fb92267e 100644 --- a/Documentation/devicetree/bindings/display/msm/dsi.txt +++ b/Documentation/devicetree/bindings/display/msm/dsi.txt @@ -48,6 +48,13 @@ Optional properties: - pinctrl-n: the "sleep" pinctrl state - ports: contains DSI controller input and output ports as children, each containing one endpoint subnode. +- qcom,mdss-dsc-enabled: Display Stream Compression (DSC) is enabled +- qcom,mdss-slice-height: DSC slice height in pixels +- qcom,mdss-slice-width: DSC slice width in pixels +- qcom,mdss-slice-per-pkt: DSC slices per packet +- qcom,mdss-bit-per-component: DSC bits per component +- qcom,mdss-bit-per-pixel: DSC bits per pixel +- qcom,mdss-block-prediction-enable: Block prediction mode of DSC enabled DSI Endpoint properties: - remote-endpoint: For port@0, set to phandle of the connected panel/bridge's @@ -188,6 +195,14 @@ Example: qcom,master-dsi; qcom,sync-dual-dsi; + qcom,mdss-dsc-enabled; + qcom,mdss-slice-height = <16>; + qcom,mdss-slice-width = <540>; + qcom,mdss-slice-per-pkt = <1>; + qcom,mdss-bit-per-component = <8>; + qcom,mdss-bit-per-pixel = <8>; + qcom,mdss-block-prediction-enable; + qcom,mdss-mdp-transfer-time-us = <12000>; pinctrl-names = "default", "sleep";