From patchwork Wed Jan 28 18:15:48 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Javier Martinez Canillas X-Patchwork-Id: 5731191 Return-Path: X-Original-To: patchwork-linux-mmc@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 8C302BF440 for ; Wed, 28 Jan 2015 21:37:52 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 964C8201DD for ; Wed, 28 Jan 2015 21:37:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 719492018E for ; Wed, 28 Jan 2015 21:37:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934150AbbA1Umo (ORCPT ); Wed, 28 Jan 2015 15:42:44 -0500 Received: from bhuna.collabora.co.uk ([93.93.135.160]:46211 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934110AbbA1Uml (ORCPT ); Wed, 28 Jan 2015 15:42:41 -0500 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: javier) with ESMTPSA id 49A74600EBD From: Javier Martinez Canillas To: Ulf Hansson Cc: Kukjin Kim , Doug Anderson , Olof Johansson , Arend van Spriel , Srinivas Kandagatla , linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Javier Martinez Canillas Subject: [PATCH v2 1/6] mmc: pwrseq: Document that simple sequence support more than one GPIO Date: Wed, 28 Jan 2015 19:15:48 +0100 Message-Id: <1422468953-7594-2-git-send-email-javier.martinez@collabora.co.uk> X-Mailer: git-send-email 2.1.3 In-Reply-To: <1422468953-7594-1-git-send-email-javier.martinez@collabora.co.uk> References: <1422468953-7594-1-git-send-email-javier.martinez@collabora.co.uk> Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Many SDIO/MMC attached WLAN chips need more than one ping for their reset sequence. Extend the pwrseq_simple binding to support more than one pin. Signed-off-by: Javier Martinez Canillas --- Changes since v1: - Make the explanation clearer by adding an explicit "they". Suggested by Srinivas Kandagatla. --- Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt index da333d9ed94c..eaae652213ae 100644 --- a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt +++ b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt @@ -8,9 +8,10 @@ Required properties: - compatible : contains "mmc-pwrseq-simple". Optional properties: -- reset-gpios : contains a GPIO specifier. The reset GPIO is asserted at - initialization and prior we start the power up procedure of the card. It - will be de-asserted right after the power has been provided to the card. +- reset-gpios : contains a list of GPIO specifiers. The reset GPIOs are asserted + at initialization and prior we start the power up procedure of the card. + They will be de-asserted right after the power has been provided to the + card. Example: