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[209.132.180.67]) by mx.google.com with ESMTP id r88si6402197pfb.305.2017.08.31.06.52.44; Thu, 31 Aug 2017 06:52:44 -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.s=20150623 header.b=Rydh+8iH; 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 S1751781AbdHaNwl (ORCPT + 26 others); Thu, 31 Aug 2017 09:52:41 -0400 Received: from mail-wm0-f54.google.com ([74.125.82.54]:35681 "EHLO mail-wm0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751728AbdHaNwg (ORCPT ); Thu, 31 Aug 2017 09:52:36 -0400 Received: by mail-wm0-f54.google.com with SMTP id v2so5365663wmf.0 for ; Thu, 31 Aug 2017 06:52:35 -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:in-reply-to:references; bh=rdGAJfcjCJVGAPQI8ZTJ2pewA9ZCtj/gVjjd0e5tApY=; b=Rydh+8iHROX628LEEJ/qEgsyxkmew0udSEu+I4AAqcJh4eUiWwSngVR6T2KZMiQMpU m5S9JeU0lFYAn3hhw3PW8A+tF0qBtIqRNOCWRshLkvguPI5827HGJW/96jRAv2SRclgL Ebx8pSVf1L1JcKrn6LCg1K5gmX1p2Po+lgViNZBd+ph6X6kNVUxNPymjBUUURW4zUXcT PndyMx+vCnBPw2ULhhhSLv+fs4+UHYNSw9S5nx2kzAvv8of6tcl1EbRpJuTjrLj3QSu8 hvShHFiiBYmFkcyDP6CxTw9QNEu7NiyPFU7TBipcYtM5GXQiUiSCwye58JyWrUHYGlmJ 6GIA== 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:in-reply-to :references; bh=rdGAJfcjCJVGAPQI8ZTJ2pewA9ZCtj/gVjjd0e5tApY=; b=ddjdBXNTIUKavaJ7QyfjzIxICxFmIQY43HppVZKjGjNAJnKnEqnL+a2ab8WGKvkXai C52fZ9+rfmYLdS7dK/1qooLmfTr6EiGYvYFuSYI2kccIaG0WOTDj+yA2lOeXvrysyJIh Vlm0i6Qz57q327FnmAwJZAfmSyFEjFmS/GWRheHHGiyvs4IroovCjjnTnlX6h+knHZC1 zh02JM0F0ILw6VKAB18spsYkwcw0R7mFp+JxYlYQCbGUhG/lF6mUEncBy1TdwKthBiZM lj18PhX8CYMAOoZKsCENkiL3D23WspDRGtbjWxuVgZpv28ssLL6dylxQ08u1oEm0pKGU v9wA== X-Gm-Message-State: AHPjjUi3B10p22xaX32KJ+2puPzdBNICN2jHVbIUyTez8izr5HUqFp4u 8rDdoAxhtFBpvT8D X-Google-Smtp-Source: ADKCNb70zSOYSu5BsTlMEpL6iW26/AB5Y/z/cdJ0I/GTUBJ/mUNG7HfBxNVclu5GXrAjdfAtJZ1GBg== X-Received: by 10.28.218.132 with SMTP id r126mr582050wmg.14.1504187555002; Thu, 31 Aug 2017 06:52:35 -0700 (PDT) Received: from localhost.localdomain ([90.63.244.31]) by smtp.googlemail.com with ESMTPSA id z1sm147959wmz.45.2017.08.31.06.52.33 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 31 Aug 2017 06:52:34 -0700 (PDT) From: Jerome Brunet To: Kevin Hilman , Carlo Caione Cc: Jerome Brunet , linux-amlogic@lists.infradead.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 4/9] ARM64: dts: meson-gxbb: nanopi-k2: add card regulator settle times Date: Thu, 31 Aug 2017 15:52:21 +0200 Message-Id: <20170831135226.19784-5-jbrunet@baylibre.com> X-Mailer: git-send-email 2.9.5 In-Reply-To: <20170831135226.19784-1-jbrunet@baylibre.com> References: <20170831135226.19784-1-jbrunet@baylibre.com> 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 nanopi-k2 is not instantaneous, especially when switching from 3.3v to 1.8v. It take at least 3ms 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: 9bc7ffb08daf ("arm64: dts: amlogic: Add NanoPi K2") Signed-off-by: Jerome Brunet --- arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts | 3 +++ 1 file changed, 3 insertions(+) -- 2.9.5 diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts index 60d5f2da6916..acb6797756e5 100644 --- a/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts +++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts @@ -107,6 +107,9 @@ states = <3300000 0>, <1800000 1>; + + regulator-settling-time-up-us = <100>; + regulator-settling-time-down-us = <5000>; }; wifi_32k: wifi-32k {