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[209.132.180.67]) by mx.google.com with ESMTP id p188si7306243pga.521.2017.08.21.09.08.19; Mon, 21 Aug 2017 09:08:19 -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=oT+hczub; 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 S932196AbdHUQIR (ORCPT + 26 others); Mon, 21 Aug 2017 12:08:17 -0400 Received: from mail-wr0-f170.google.com ([209.85.128.170]:35761 "EHLO mail-wr0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754405AbdHUQGq (ORCPT ); Mon, 21 Aug 2017 12:06:46 -0400 Received: by mail-wr0-f170.google.com with SMTP id k46so28476827wre.2 for ; Mon, 21 Aug 2017 09:06:45 -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=zPHBd80W0jIEr0U5KiMu3G0meGsq+1Q1/3dWhj3EJTI=; b=oT+hczubaKxrOqNUQ6aZJl248M4zfBGMMVmAWwPbnVb0s/Bbc7MKG/8rFKDnjMMQMH 91LOx+rrWVlTRYCOnCsHGuDygZengyfMlh/5eK78sFyMzoT212t5Lftlv4GwK7nrdIJw wGCRDBpJlF7zE+16s3L39Ld5khj/kZm4zXH6UkawEe8s7VAbtU5+q7UVYeFGKm3MaveY rHGJv//Yf9OX6tjojwo6YRxMotXLHk9AdslDzq85/2Bjn3/NAzwBJHqrjG0yfILu5wpM DNh1kZfu27Yj1QSIg2HG9bkEqZyNv1m7zG3sPBXj/2NLPeaa2Yt0NQ+K4TVbNO6gs8wM 8sOw== 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=zPHBd80W0jIEr0U5KiMu3G0meGsq+1Q1/3dWhj3EJTI=; b=EWNctWEGxyhvcyftUkYX/NYGLa8rOBk75cyiSUd5rR5iqxHLZMgsaheAU0ihJO6ebT SduSbIKBGS97Vx0jFtclQkfoWBWagk47rGW8vX0LG7hrxdQMuLaWo87d4lV89pQIqCRP WeTHNmwgSxiiHmZwbJ97eM8SYMCsrRA+/IUa8dcRN2ncb+rsd+/tsA2OCsJ14KvU37rB PgN83ZRKhqC60VHPr8P552JtPEN59Z3UAqKVIFOJmMwnaDDSPcOMFBt23JXpXM0507Nt HmPBraZ9dr7XhVBUPaiuF8Zq9Emn3+pBNlpdaH66IpaUzSJ4e06Y7mkVKQTWryN760C1 K8RA== X-Gm-Message-State: AHYfb5gJyGErS+Oqd7NbG5r7vRq/M1P/fNCKega1WxGhR178rZUmbsJQ kFgjmS2EAmpeme4X X-Received: by 10.28.147.206 with SMTP id v197mr2198577wmd.133.1503331605015; Mon, 21 Aug 2017 09:06:45 -0700 (PDT) Received: from localhost.localdomain ([90.63.244.31]) by smtp.googlemail.com with ESMTPSA id r79sm12346432wmd.42.2017.08.21.09.06.43 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 21 Aug 2017 09:06:44 -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 v2 4/9] ARM64: dts: meson-gxbb: nanopi-k2: add card regulator settle times Date: Mon, 21 Aug 2017 18:06:32 +0200 Message-Id: <20170821160637.22456-5-jbrunet@baylibre.com> X-Mailer: git-send-email 2.9.5 In-Reply-To: <20170821160637.22456-1-jbrunet@baylibre.com> References: <20170821160637.22456-1-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 e4c6b2fd52ee..de4ed28d78bc 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 {