From patchwork Fri Apr 29 17:32:16 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Doug Anderson X-Patchwork-Id: 8984151 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 4215DBF29F for ; Fri, 29 Apr 2016 17:33:06 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 58A30201CE for ; Fri, 29 Apr 2016 17:33:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6C339201CD for ; Fri, 29 Apr 2016 17:33:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752873AbcD2Rcy (ORCPT ); Fri, 29 Apr 2016 13:32:54 -0400 Received: from mail-pf0-f174.google.com ([209.85.192.174]:35828 "EHLO mail-pf0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752690AbcD2Rcw (ORCPT ); Fri, 29 Apr 2016 13:32:52 -0400 Received: by mail-pf0-f174.google.com with SMTP id 77so18145441pfv.2 for ; Fri, 29 Apr 2016 10:32:52 -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=fVv8I2qe9+cPwtul49lWz2R8l8Ek3d1DudvCBBMsZe4=; b=KsfI+55gWwvMAO3omIx3WZtPQNp8p8bvTvQJNDRk3oWd/kwYkwNxpQEU8NuoSKQ/3t RHU+bG8ouIBGZJHZZ4CVKuWPbOn8jDlqDPlWyd1Qh/z+bk/RxRW7F9nXwcMEbeIBAMiB iU8cqQ6N4cWIUJ2gm6PPHy6Gwz5q9ebmdz6cQ= 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=fVv8I2qe9+cPwtul49lWz2R8l8Ek3d1DudvCBBMsZe4=; b=iD5X6RbEZQt3VQM0BbBnKqiUJ+ZiXg39LG/uX9jykTXGiQkI8HhJwJIOJo7y593gKN cFaeGWAvXDJYe5CAjPbCZ1jBDh5MBsZH2WJrtZhlmwQVsIuL4WM1vDIFk0oHUylHYfOz HCxlrh65EZ2T0G3kt9aaar2AKPFJinDBmJHUkMyaJV/Lpk3+XuATBqmED7E2MFepTb7i pLCfNIGgE6HBsJWvqiiEDJTf9whyrDVo2FkXu4y9Run+XefBTtbrOdlm0VDVA/bqaIzV I1k4zKoaUrSArFjx3spX3/UHSc5oqxEfBJK6g82AD4WTThpHHUgcokIUoBVSTG2GzOF8 3+QA== X-Gm-Message-State: AOPr4FVSts9DN3DEjwwkRoRnuVIAW2bMBQ61a5CQlFUnR3X7P2NQibxSdTEbUfPI2HfsPA== X-Received: by 10.98.2.22 with SMTP id 22mr30641873pfc.36.1461951161856; Fri, 29 Apr 2016 10:32:41 -0700 (PDT) Received: from tictac.mtv.corp.google.com ([172.22.65.76]) by smtp.gmail.com with ESMTPSA id 19sm24880623pfu.83.2016.04.29.10.32.40 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 29 Apr 2016 10:32:41 -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, Heiko Stuebner , jszhang@marvell.com, linux-rockchip@lists.infradead.org, devicetree-spec@vger.kernel.org, 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, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 1/4] Documentation: mmc: Document mmc aliases Date: Fri, 29 Apr 2016 10:32:16 -0700 Message-Id: <1461951139-6109-2-git-send-email-dianders@chromium.org> X-Mailer: git-send-email 2.8.0.rc3.226.g39d4020 In-Reply-To: <1461951139-6109-1-git-send-email-dianders@chromium.org> References: <1461951139-6109-1-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 --- Changes in v2: None 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 ed23b9bedfdc..4b5c23e61adb 100644 --- a/Documentation/devicetree/bindings/mmc/mmc.txt +++ b/Documentation/devicetree/bindings/mmc/mmc.txt @@ -71,6 +71,10 @@ 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: -------------------- @@ -145,3 +149,10 @@ 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 */ +};