From patchwork Fri Jun 15 02:04:15 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chunyan Zhang X-Patchwork-Id: 10465575 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 11F72603B4 for ; Fri, 15 Jun 2018 02:05:44 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F04D428C7F for ; Fri, 15 Jun 2018 02:05:43 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E504028CD7; Fri, 15 Jun 2018 02:05:43 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI, T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7B8BB28C7F for ; Fri, 15 Jun 2018 02:05:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965523AbeFOCFa (ORCPT ); Thu, 14 Jun 2018 22:05:30 -0400 Received: from mail-pf0-f194.google.com ([209.85.192.194]:44900 "EHLO mail-pf0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965525AbeFOCF0 (ORCPT ); Thu, 14 Jun 2018 22:05:26 -0400 Received: by mail-pf0-f194.google.com with SMTP id h12-v6so4119009pfk.11 for ; Thu, 14 Jun 2018 19:05:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=iMrql5pChvk0l0OVuaoPU9zdtIybInbwoq7vsafDp1A=; b=ZFwLRIYf1YMykqsQUjRHRqpN6ibWMmukmz+3u1v2oql47QrPLYYZMaXn8EblWJ6SAy 6E0gBwWqnlRh9auRrDR2Y4FhwuTaI+7V1XmoFOpoCqg3Bq4G7IzdMrj8BJZetfMpbSlj n3glKy+FwSivSAjshgGEAnlJhXx/xHq7vsAq0= 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=iMrql5pChvk0l0OVuaoPU9zdtIybInbwoq7vsafDp1A=; b=FJgGBFz7LUbQMtuYHcOjDzwmUj/6CM0Q0W7bX9MQAumT8qBjQWYdj4Ymq/ETGvDhB2 WwNh9MpafjnJu25hcKsgK5OnJlF8WgoeXDAIjbn7q2nlRPIYLpwJrxhIyaMKn0esOcma wmfLi8V6XtVM7F/6RNLWY83hgpwr7aJup9ETYzewx1XLTKAZC6tdElf8/XTt8SxkeJrE hSNzjZcs718y6j1lJWvU4VekaR+vgzjetlTBFnaFig7Kc5huB/87qShDu++GZ2cDB9yE l4N6bC9F162Ntnn9wz30Fv1gya6k+wc3PSkOPyUCIa876vWskfngPUEMr33aSbgTve7J XKSQ== X-Gm-Message-State: APt69E3BakghXNYEI79ajb2YTuCH28YsmfJ1UVCCXu1sHMaMfxj9zVuA q6xho0M5jg0mMLwdoF62pBf8tw== X-Google-Smtp-Source: ADUXVKKwO6gUr45e/gQlv0AchmVW5iyLsMD8EhZmPV/pP6kzko3yj6im7cPSYGCIY0SWaR0wGvf7BQ== X-Received: by 2002:a62:4556:: with SMTP id s83-v6mr12043599pfa.73.1529028326182; Thu, 14 Jun 2018 19:05:26 -0700 (PDT) Received: from ubt.spreadtrum.com ([117.18.48.102]) by smtp.gmail.com with ESMTPSA id k69-v6sm9504953pgc.39.2018.06.14.19.05.20 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 14 Jun 2018 19:05:25 -0700 (PDT) From: Chunyan Zhang To: Ulf Hansson , Adrian Hunter Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, Orson Zhai , Baolin Wang , Billows Wu , zhang.lyra@gmail.com Subject: [PATCH V2 7/7] dt-bindings: sdhci-sprd: Add bindings for the sdhci-sprd controller Date: Fri, 15 Jun 2018 10:04:15 +0800 Message-Id: <1529028255-6022-8-git-send-email-zhang.chunyan@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1529028255-6022-1-git-send-email-zhang.chunyan@linaro.org> References: <1529028255-6022-1-git-send-email-zhang.chunyan@linaro.org> Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Chunyan Zhang This patch adds the device-tree binding documentation for Spreadtrum SDHCI driver. Signed-off-by: Chunyan Zhang --- .../devicetree/bindings/mmc/sdhci-sprd.txt | 41 ++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 Documentation/devicetree/bindings/mmc/sdhci-sprd.txt diff --git a/Documentation/devicetree/bindings/mmc/sdhci-sprd.txt b/Documentation/devicetree/bindings/mmc/sdhci-sprd.txt new file mode 100644 index 0000000..45c9978 --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/sdhci-sprd.txt @@ -0,0 +1,41 @@ +* Spreadtrum SDHCI controller (sdhci-sprd) + +The Secure Digital (SD) Host controller on Spreadtrum SoCs provides an interface +for MMC, SD and SDIO types of cards. + +This file documents differences between the core properties in mmc.txt +and the properties used by the sdhci-sprd driver. + +Required properties: +- compatible: Should contain "sprd,sdhci-r11". +- reg: physical base address of the controller and length. +- interrupts: Interrupts used by the SDHCI controller. +- clocks: Should contain phandle for the clock feeding the SDHCI controller +- clock-names: Should contain the following: + "sdio" - SDIO source clock (required) + "enable" - gate clock which used for enabling/disabling the device (required) + +Optional properties: +- assigned-clocks: the same with "sdio" clock +- assigned-clock-parents: the default parent of "sdio" clock + +Examples: + +sdio0: sdio@20600000 { + compatible = "sprd,sdhci-r11"; + reg = <0 0x20600000 0 0x1000>; + interrupts = ; + + clock-names = "sdio", "enable"; + clocks = <&ap_clk CLK_EMMC_2X>, + <&apahb_gate CLK_EMMC_EB>; + assigned-clocks = <&ap_clk CLK_EMMC_2X>; + assigned-clock-parents = <&rpll CLK_RPLL_390M>; + + bus-width = <8>; + non-removable; + no-sdio; + no-sd; + cap-mmc-hw-reset; + status = "okay"; +};