From patchwork Wed Jul 12 13:02:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Amit Pundir X-Patchwork-Id: 701990 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 23B70EB64DA for ; Wed, 12 Jul 2023 13:02:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233287AbjGLNCk (ORCPT ); Wed, 12 Jul 2023 09:02:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38680 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233291AbjGLNCf (ORCPT ); Wed, 12 Jul 2023 09:02:35 -0400 Received: from mail-pf1-x42a.google.com (mail-pf1-x42a.google.com [IPv6:2607:f8b0:4864:20::42a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 261ED1FD6 for ; Wed, 12 Jul 2023 06:02:23 -0700 (PDT) Received: by mail-pf1-x42a.google.com with SMTP id d2e1a72fcca58-666eef03ebdso3459254b3a.1 for ; Wed, 12 Jul 2023 06:02:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1689166943; x=1691758943; h=content-transfer-encoding:author:mime-version:message-id:date :subject:cc:to:from:from:to:cc:subject:date:message-id:reply-to; bh=KMdohCdaLVd4HEOOg6g6eIdW9oFM4ELH5FlH42ryJA4=; b=FO8qnGg64dU7X+U8EMUetFFnalKYf9NpPJ7dptUBQOkNpwc7ZLhwLDh025M7zMlcZH QrHgezV0MJQv6uDJjvMI858+eQbKt98luJKA7Jhm8UfQ/ivd9IQ8/0Il4x1hgFxv4U2P 4hJcwADL1GngCelhFCpOAOJ4XSZsmTcDTtgCEXyWYc3rSw6QVA//WnQY9BUan190iJ1E Lf8lebzMdld8H9io6dgAOTL0oqNJKMUl6Y1QMBrgIYSLlTmF7BLJxtSQxDfqIDXqSRW0 S8y56T0M4ovrAOWqzDZvFUIDSwd9AZpK7u2/48Os1oxVvgUcpXnCWXYDU3c85rz2MsNn pvYQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1689166943; x=1691758943; h=content-transfer-encoding:author:mime-version:message-id:date :subject:cc:to:from:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=KMdohCdaLVd4HEOOg6g6eIdW9oFM4ELH5FlH42ryJA4=; b=kGuwTw7dgq1250WP5pcjA3fxXaAlAHwqn3EVROGOnIcfGczzorXy8cFfUcV+1XXv+t 8CHFJL9qWJBYF2ISS1NFs47BG/37YMTnj4QfcUdydsvyh4126bJ6G6YWqj6Ld1IA2nbz QCmB2iMb4JJ1a4dkcndiQVmGbWrzJL1c5BslD/q6S49Ppn9SkFSmbSEi180ULeG9PugA 1L+HQhO6AMfXui0jykYskglRJnCE4C5nwenf6yMPvHAH0EdzkX4WZKnZgxsZ6DeMJJRC 3LH4mXhhnSp6kdxWhOo+O97UR7gDzpKZWzFfCb6OjSmHen9NwQ9MS9vAAwPUcGIEEkqT c6yw== X-Gm-Message-State: ABy/qLab106+yjK245tHn9eMZ6y5xPcfzXWrnvFZiOiqGUT9jMklJZai 4xlTFPEs0pduIs9lu+C9s0kzAw== X-Google-Smtp-Source: APBJJlGxOuD2o+cmEyspcCKwQyh62RpiDLf/OBRMFhKExXiTATvAyj0SSczI6826Fg3XxvXJc/xNQQ== X-Received: by 2002:a05:6a20:12d0:b0:129:a9af:7ec6 with SMTP id v16-20020a056a2012d000b00129a9af7ec6mr16897403pzg.56.1689166943112; Wed, 12 Jul 2023 06:02:23 -0700 (PDT) Received: from x-wing.lan ([49.207.50.231]) by smtp.gmail.com with ESMTPSA id p1-20020a639501000000b0054fe07d2f3dsm3417023pgd.11.2023.07.12.06.02.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 12 Jul 2023 06:02:22 -0700 (PDT) From: Amit Pundir To: Bjorn Andersson , Andy Gross , Dmitry Baryshkov , Rob Herring , Konrad Dybcio , Krzysztof Kozlowski , Conor Dooley , Caleb Connolly , Bryan Donoghue , Rob Clark , Abhinav Kumar , Sean Paul , Marijn Suijten , David Airlie , Daniel Vetter , Krishna Manikandan Cc: dri-devel , freedreno , linux-arm-msm , dt , lkml Subject: [PATCH 1/2] dt-bindings: display/msm: qcom,sdm845-mdss: add memory-region property Date: Wed, 12 Jul 2023 18:32:14 +0530 Message-Id: <20230712130215.666924-1-amit.pundir@linaro.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Author: Amit Pundir Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add and document the reserved memory region property in the qcom,sdm845-mdss schema. Signed-off-by: Amit Pundir --- .../devicetree/bindings/display/msm/qcom,sdm845-mdss.yaml | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sdm845-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sdm845-mdss.yaml index 6ecb00920d7f..3ea1dbd7e317 100644 --- a/Documentation/devicetree/bindings/display/msm/qcom,sdm845-mdss.yaml +++ b/Documentation/devicetree/bindings/display/msm/qcom,sdm845-mdss.yaml @@ -39,6 +39,11 @@ properties: interconnect-names: maxItems: 2 + memory-region: + maxItems: 1 + description: + Phandle to a node describing a reserved memory region. + patternProperties: "^display-controller@[0-9a-f]+$": type: object From patchwork Wed Jul 12 13:02:15 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Amit Pundir X-Patchwork-Id: 702440 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AD42CEB64DA for ; Wed, 12 Jul 2023 13:02:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233520AbjGLNCw (ORCPT ); Wed, 12 Jul 2023 09:02:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38918 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233392AbjGLNCm (ORCPT ); Wed, 12 Jul 2023 09:02:42 -0400 Received: from mail-ot1-x32d.google.com (mail-ot1-x32d.google.com [IPv6:2607:f8b0:4864:20::32d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7A63C1FF9 for ; Wed, 12 Jul 2023 06:02:29 -0700 (PDT) Received: by mail-ot1-x32d.google.com with SMTP id 46e09a7af769-6b87d505e28so5674807a34.2 for ; Wed, 12 Jul 2023 06:02:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1689166948; x=1691758948; h=content-transfer-encoding:author:mime-version:references :in-reply-to:message-id:date:subject:cc:to:from:from:to:cc:subject :date:message-id:reply-to; bh=9T8piHX0bubTIqR5dsadlL99AD9gpATcetHPEAi8jTU=; b=hIzKop+k4OCTCBWq4j/r6OD7aiiXPsd/rQZ1uF4S9TETD/oKB2rDcKczmsx2A0nJe5 NWtDC2qPPGP7IM/wx1RvH78MvjJ6gY/YwivETBUZkh+vDWikLxQdZmap/WtbV5U3p2fE p5OoOEvAFa/9bydOqp6ak9+2bf8q660eCyEzrIC/1SHTOj9MIVPWcntYo5Y0VljtGzHE mgZIlmKBdjkeT3791x7XiE800dSX3/EX7xIgtP5kHtO8nVPlbCyb2u7S6JXlPFNTDwAE UGae6a1Zymrpqo19n1nGtitGuwQJG7H3zK3/7eS7IUQfV708JvhyXubPbr6YmxNuc0TL sKPg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1689166948; x=1691758948; h=content-transfer-encoding:author:mime-version:references :in-reply-to:message-id:date:subject:cc:to:from:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=9T8piHX0bubTIqR5dsadlL99AD9gpATcetHPEAi8jTU=; b=HAKiqLcYGEkVftv0cideOY5hRfAU5itSImhoNqjXpsbAoiY9LRHaiWlG7cMlVc5Ap/ GgoFaVgGmA+LeAl3YCcTl+wsU7kCJK4d/Hsye9uVehs3qALmgiIoHFPz4UDzDH7dGv0B Rx47uo9XPTuRKxM3F+uJJ8PbkGU4x2aLs/CcSlDv8dl/Q0uBUeBlnsBRSRqkk9mgvwSx 30Tw+10sQXlICkLalv165qUiYz3NwlYi+mYdKmtzFFhJQbAyZaKFH1wCq5QPsXOAt4oz L0o8unLp0WXhtOyYOVd+RcunQSFtY5n2MunYh5am2NvP/E4QN/4uoZck49+eLJ202zmR S1FQ== X-Gm-Message-State: ABy/qLb7qymvbSeRek7Yx9tr+02JX4sU56XNMyOWb9wL7ga2X1l8vkZ7 wwger+4jmrPThmVlYU4TJPO70Q== X-Google-Smtp-Source: APBJJlHMNeteSeTTb43sYC5YqkHocrWysDwQ9MhmzMKypOa+itOUe2NT1zrkO4ZI8Ox9NbZXCTb+1w== X-Received: by 2002:a05:6358:341f:b0:135:89d6:22e9 with SMTP id h31-20020a056358341f00b0013589d622e9mr1235888rwd.13.1689166948540; Wed, 12 Jul 2023 06:02:28 -0700 (PDT) Received: from x-wing.lan ([49.207.50.231]) by smtp.gmail.com with ESMTPSA id p1-20020a639501000000b0054fe07d2f3dsm3417023pgd.11.2023.07.12.06.02.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 12 Jul 2023 06:02:28 -0700 (PDT) From: Amit Pundir To: Bjorn Andersson , Andy Gross , Dmitry Baryshkov , Rob Herring , Konrad Dybcio , Krzysztof Kozlowski , Conor Dooley , Caleb Connolly , Bryan Donoghue , Rob Clark , Abhinav Kumar , Sean Paul , Marijn Suijten , David Airlie , Daniel Vetter , Krishna Manikandan Cc: dri-devel , freedreno , linux-arm-msm , dt , lkml Subject: [PATCH 2/2][v4] arm64: dts: qcom: sdm845-db845c: Mark cont splash memory region as reserved Date: Wed, 12 Jul 2023 18:32:15 +0530 Message-Id: <20230712130215.666924-2-amit.pundir@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230712130215.666924-1-amit.pundir@linaro.org> References: <20230712130215.666924-1-amit.pundir@linaro.org> MIME-Version: 1.0 Author: Amit Pundir Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Adding a reserved memory region for the framebuffer memory (the splash memory region set up by the bootloader). Signed-off-by: Amit Pundir --- v4: Re-sending this along with a new dt-bindings patch to document memory-region property in qcom,sdm845-mdss schema and keep dtbs_check happy. v3: Point this reserved region to MDSS. v2: Updated commit message. There was some dicussion on v1 but it didn't go anywhere, https://lore.kernel.org/linux-kernel/20230124182857.1524912-1-amit.pundir@linaro.org/T/#u. The general consensus is that this memory should be freed and be made resuable but that (releasing this piece of memory) has been tried before and it is not trivial to return the reserved memory node to the system RAM pool in this case. arch/arm64/boot/dts/qcom/sdm845-db845c.dts | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts index d6b464cb61d6..f546f6f57c1e 100644 --- a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts +++ b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts @@ -101,6 +101,14 @@ hdmi_con: endpoint { }; }; + reserved-memory { + /* Cont splash region set up by the bootloader */ + cont_splash_mem: framebuffer@9d400000 { + reg = <0x0 0x9d400000 0x0 0x2400000>; + no-map; + }; + }; + lt9611_1v8: lt9611-vdd18-regulator { compatible = "regulator-fixed"; regulator-name = "LT9611_1V8"; @@ -506,6 +514,7 @@ &i2c14 { }; &mdss { + memory-region = <&cont_splash_mem>; status = "okay"; };