From mboxrd@z Thu Jan 1 00:00:00 1970 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=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 A69FCC433C1 for ; Wed, 24 Mar 2021 02:56:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7C285619F2 for ; Wed, 24 Mar 2021 02:56:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234959AbhCXC4O (ORCPT ); Tue, 23 Mar 2021 22:56:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40910 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231876AbhCXCzg (ORCPT ); Tue, 23 Mar 2021 22:55:36 -0400 Received: from mail-pj1-x1030.google.com (mail-pj1-x1030.google.com [IPv6:2607:f8b0:4864:20::1030]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 74727C061763 for ; Tue, 23 Mar 2021 19:55:36 -0700 (PDT) Received: by mail-pj1-x1030.google.com with SMTP id nh23-20020a17090b3657b02900c0d5e235a8so431646pjb.0 for ; Tue, 23 Mar 2021 19:55:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=VxX3jCU9gxpYCK5wxlC07dKnMnHlhcGJNIa5hTcYbHE=; b=f40wFQdeT6npH+pw+HAc7cVoVM24lGjxsjvh9ss0IAFkeMdNXo3UsL/t0j43d2olss FfsR86iQ9J9/5W27eztxDunvESkS1E7olyR/007Sm4fP6xQmoAc/IH2jSDK8VRvTZM/a UGupzhmMml/m4ViNMWC1wJMjsbFj9Rq8avW+k= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=VxX3jCU9gxpYCK5wxlC07dKnMnHlhcGJNIa5hTcYbHE=; b=dFsDMIMqbiXp5gskXbHzxpyfjocRZevU1iOT5DZXYX4r9MSfoONcsEBgeZIs5duMhg n6Cc7Lb4SkG7cKm3QSJydmRHy+sCXU3n9GnH5I4EnjRkjxnPfZRDd/Su9sNuhd7sRWrM yZJzVK856zz8IJ9VWzn4FGlGAmbKqcjnsyRrb68Vk24TjFgf5W0I7T3GK9e8uz1kiZhM 7oAwNXXB6BlAqORIVyiMOjiTxKtwty0yb4Hwev/aeO3YQeluls5VKF/jWfRhan+HK76Y rH6EbnaCdteCcfwAF+KzwIBJ709Zi+QDF0iPoWm1YU7oIqI3AnK8nNukuVx7Mmy8YiwP LhGA== X-Gm-Message-State: AOAM533XLaZ4J1A7DaAnQpH51W1FBCF4VjmpiA8nRh5SPyoYlWEN8ZR1 EzOe/eWlbuLSace3MRzxNPzSGA== X-Google-Smtp-Source: ABdhPJynwED2kc7VSNElAA7bTKcRRHocGbOuLARI0DW++dV5v5I4giF/PTHaV0dDpzmJNobxrQDgyA== X-Received: by 2002:a17:902:f547:b029:e4:6dbc:6593 with SMTP id h7-20020a170902f547b02900e46dbc6593mr1474686plf.4.1616554535976; Tue, 23 Mar 2021 19:55:35 -0700 (PDT) Received: from smtp.gmail.com ([2620:15c:202:201:84ac:62f7:16a8:ccc7]) by smtp.gmail.com with ESMTPSA id t12sm468146pfe.203.2021.03.23.19.55.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 Mar 2021 19:55:35 -0700 (PDT) From: Stephen Boyd To: Andy Gross , Bjorn Andersson Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, Laurent Pinchart , Douglas Anderson Subject: [PATCH] arm64: dts: qcom: trogdor: Add no-hpd to DSI bridge node Date: Tue, 23 Mar 2021 19:55:34 -0700 Message-Id: <20210324025534.1837405-1-swboyd@chromium.org> X-Mailer: git-send-email 2.31.0.291.g576ba9dcdaf-goog MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We should indicate that we're not using the HPD pin on this device, per the binding document. Otherwise if code in the future wants to enable HPD in the bridge when this property is absent we'll be wasting power powering hpd when we don't use it on trogdor boards. We didn't notice this before because the kernel driver blindly disables hpd, but that won't be true for much longer. Cc: Laurent Pinchart Cc: Douglas Anderson Fixes: 7ec3e67307f8 ("arm64: dts: qcom: sc7180-trogdor: add initial trogdor and lazor dt") Signed-off-by: Stephen Boyd --- arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi index 07c8b2c926c0..298af6d7fb4a 100644 --- a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi @@ -595,6 +595,8 @@ sn65dsi86_bridge: bridge@2d { clocks = <&rpmhcc RPMH_LN_BB_CLK3>; clock-names = "refclk"; + no-hpd; + ports { #address-cells = <1>; #size-cells = <0>; -- https://chromeos.dev