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[209.132.180.67]) by mx.google.com with ESMTP id g8si5986143pgr.417.2017.08.01.08.22.33; Tue, 01 Aug 2017 08:22:33 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@baylibre-com.20150623.gappssmtp.com header.b=1fDRCUit; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751927AbdHAPWb (ORCPT + 26 others); Tue, 1 Aug 2017 11:22:31 -0400 Received: from mail-wr0-f180.google.com ([209.85.128.180]:35956 "EHLO mail-wr0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751295AbdHAPW3 (ORCPT ); Tue, 1 Aug 2017 11:22:29 -0400 Received: by mail-wr0-f180.google.com with SMTP id y43so8245997wrd.3 for ; Tue, 01 Aug 2017 08:22:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id; bh=7EiDIi/4JjPswt1ZgHTb4BqtZZ260oNoFo6+m6iU8lY=; b=1fDRCUitlDetNHWRJceSLYucsLJ5DeRB59YgZXlhoS+48zkOxInTfALHVIbXXpJrWq 2pAPyaSyIZkP6TZ4d4ZIhZKFVeQAvg1qfIW9e9RMmd1i9yACTzPoecIRP4igNWHzE8D9 Qe6+fPyTpAxh72X9vnY9/INkAoAf8hkz/piptJSvMQ0nuGlE8MgfiB6BrS9o/P5aZgM5 Ry3qh4uNuP2CdOjpCYjEzfNBqg3meA9F3JHKFbpV6pzdk+YNP458fdLUw98NjYPYy8cT hNP5oALpoS307ngq9PidHu+AMLrlpmYh44Tw112eU6kfVdVUXLiPWS50KpZqVK56YCCT 4pDw== 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; bh=7EiDIi/4JjPswt1ZgHTb4BqtZZ260oNoFo6+m6iU8lY=; b=mSpnZ4m8JFyRwn2ipgMFIjPQY5x4Y+wxVbkVI/18+BjlEB6zSPkbY/TwsnUMn5IlXF 13zD1I1cyHNvhInEfRNkNaTuqGneIsQlzbkVfB427AnUzdPoVy10ATfdoNZDU1ylmjub YAAo0PEZL+vy7+V4uqemYvPb0QRWCb8s7znCey1JCdchCRTKK1GqZXptjo+eEBnuHV9c 3lurgWcEapvvGJmfOJ1v/QAKRl/w6qirM+cUBropSc4YsZj+DXdyi6CoL7YRInsmz/Wa g8M/OzIRx7muxVpvTlqSAvHYlfjcS20J5pmBZpdrOKGu4eHcz+V/5tsq/fxy1ojLA9K/ c5lA== X-Gm-Message-State: AIVw111OJ8nBxOcJEPBkGON5BhM2aWhKZ+v6XHfvZMBVvFS/wYhZDeU/ gJg1Fxs14I62ALU/ X-Received: by 10.223.171.17 with SMTP id q17mr16810609wrc.12.1501600948351; Tue, 01 Aug 2017 08:22:28 -0700 (PDT) Received: from localhost.localdomain ([90.63.244.31]) by smtp.googlemail.com with ESMTPSA id p135sm1980645wmg.12.2017.08.01.08.22.27 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 01 Aug 2017 08:22:27 -0700 (PDT) From: Jerome Brunet To: Kevin Hilman , Carlo Caione Cc: Jerome Brunet , linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCH] ARM64: dts: meson-gxbb: p20x: add card regulator settle times Date: Tue, 1 Aug 2017 17:22:24 +0200 Message-Id: <20170801152224.15754-1-jbrunet@baylibre.com> X-Mailer: git-send-email 2.9.4 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Changing the card voltage on the p200 is not instantaneous, especially when switching from 3.3v to 1.8v. I take at least 70ms for the regulator to go from 3.3v to 1.8v. Add margin to that to make sure we don't upset the sdcard during the voltage switch Fixes: ef8d2ffedf18 ("ARM64: dts: meson-gxbb: add MMC support") Signed-off-by: Jerome Brunet --- arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi | 3 +++ 1 file changed, 3 insertions(+) -- 2.9.4 diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi index 9603a635c7af..d3b194c20b72 100644 --- a/arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi @@ -84,6 +84,9 @@ /* Based on P200 schematics, signal CARD_1.8V/3.3V_CTR */ states = <1800000 0 3300000 1>; + + regulator-settling-time-up-us = <10000>; + regulator-settling-time-down-us = <150000>; }; vddio_boot: regulator-vddio_boot {