From patchwork Thu Apr 28 23:06:43 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Doug Anderson X-Patchwork-Id: 8975861 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 564F7BF29F for ; Thu, 28 Apr 2016 23:08:19 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 7327D20270 for ; Thu, 28 Apr 2016 23:08:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 84F2920251 for ; Thu, 28 Apr 2016 23:08:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752403AbcD1XIO (ORCPT ); Thu, 28 Apr 2016 19:08:14 -0400 Received: from mail-pa0-f47.google.com ([209.85.220.47]:33094 "EHLO mail-pa0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752668AbcD1XHd (ORCPT ); Thu, 28 Apr 2016 19:07:33 -0400 Received: by mail-pa0-f47.google.com with SMTP id zm5so42141273pac.0 for ; Thu, 28 Apr 2016 16:07:33 -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:in-reply-to:references; bh=8fc7K3A7LCVIBh6r7y6xHA//IOCTAhqDL7SrluOtZFc=; b=m/63WNuHc3nuHbxkHaS5EZGIYHFgk39KwlVZqFYfL5reJTp8SrQ6en+HAvigmkfpWZ TbAaW8aHGTRUi8HFfpH/KLn8W3g+hzxBT/D9dSoaF8bmucwvi8w6jI9KvOrMFkPeKTW2 nJM9YRTxC9Zefl5Sx5YLLkuHEXGCSsGVOl2D0= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=8fc7K3A7LCVIBh6r7y6xHA//IOCTAhqDL7SrluOtZFc=; b=jppPLpUdulwv8IzPKBS1QyoJEsRECKJOnK3sVOT+/oXnC0L/lnRXRbPcD/XqmlUCZN hzce4ez9aKiaqawsBmQQShqtL1kibt6IizK7bD1v6dhXQGu+GxSMn2eJ85qO/Vb7SDAW gt0OXCOsL+/nCufVMm4hv3/XEJ+Qh/OZglIhLs26m8+9Rlvs+M+LYe/A+cCooKRtwmVq WAUX3BbSRN/H6Ut1mWEn1oU9mfrI88+Vgr6oETKjaQfu56myUY0CBFV2FezeVGMxBW/m i269KN46zX15Znv33uw52nBZ5CFLuq/i1j4+i8xW9n54nGDkPPClNZV6NTBgCi6nCBbn refg== X-Gm-Message-State: AOPr4FXWEy+AA6Wo0gebMRzpqjDv3ob8/xywilcVmAwLbeT9/sLf3Fi8dZ2+lMVPwtzdOA== X-Received: by 10.66.194.230 with SMTP id hz6mr24553857pac.132.1461884853076; Thu, 28 Apr 2016 16:07:33 -0700 (PDT) Received: from tictac.mtv.corp.google.com ([172.22.65.76]) by smtp.gmail.com with ESMTPSA id lg8sm103564pab.48.2016.04.28.16.07.32 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 28 Apr 2016 16:07:32 -0700 (PDT) From: Douglas Anderson To: ulf.hansson@linaro.org, jh80.chung@samsung.com Cc: shawn.lin@rock-chips.com, adrian.hunter@intel.com, stefan@agner.ch, linux-mmc@vger.kernel.org, computersforpeace@gmail.com, dmitry.torokhov@gmail.com, Douglas Anderson , robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com, ijc+devicetree@hellion.org.uk, galak@codeaurora.org, chaotian.jing@mediatek.com, sudeep.holla@arm.com, lars@metafoo.de, huangtao@rock-chips.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/3] Documentation: mmc: Document mmc aliases Date: Thu, 28 Apr 2016 16:06:43 -0700 Message-Id: <1461884805-29466-2-git-send-email-dianders@chromium.org> X-Mailer: git-send-email 2.8.0.rc3.226.g39d4020 In-Reply-To: <1461884805-29466-1-git-send-email-dianders@chromium.org> References: <1461884805-29466-1-git-send-email-dianders@chromium.org> Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org X-Spam-Status: No, score=-7.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,RP_MATCHES_RCVD,T_DKIM_INVALID,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 From: Jaehoon Chung Now, index of mmc/mmcblk devices is allocated in accordance with probing time. If want to use the mmcblk1 for some device, it can use alias. aliases { mmc0 = &mmc0; /* mmc0/mmcblk0 for eMMC */ mmc1 = &mmc2; /* mmc1/mmcblk1 for SD */ mmc2 = &mmc1; /* mmc2/mmcblk2 for SDIO*/ }; If there are no corresponding values, it might be allocated with existing scheme. Signed-off-by: Jaehoon Chung [dianders: just bindings now; mention mmc not just mmcblk] Signed-off-by: Douglas Anderson --- Documentation/devicetree/bindings/mmc/mmc.txt | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt index a1ed9c4e7235..d225a7fb3849 100644 --- a/Documentation/devicetree/bindings/mmc/mmc.txt +++ b/Documentation/devicetree/bindings/mmc/mmc.txt @@ -72,6 +72,10 @@ Optional SDIO properties: - wakeup-source: Enables wake up of host system on SDIO IRQ assertion (Legacy property supported: "enable-sdio-wakeup") +Aliases (Optional): +- If you want to use the fixed index for devices like mmcX / mmcblkX, should +be represented in the aliases node using following format "mmc(X)". +(X is an unique number for the alias.) MMC power sequences: -------------------- @@ -146,3 +150,10 @@ mmc3: mmc@01c12000 { interrupt-names = "host-wake"; }; }; + +Example with aliases nodes: + +aliases { + mmc0 = &mmc0; /* Fixed to mmc0/mmcblk0 for &mmc0 */ + mmc1 = &mmc2; /* Fixed to mmc1/mmcblk1 for &mmc2 */ +};