From patchwork Thu Aug 9 07:07:22 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yixun Lan X-Patchwork-Id: 10561029 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1E03214C0 for ; Thu, 9 Aug 2018 07:09:21 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 072322A1C3 for ; Thu, 9 Aug 2018 07:09:21 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id EFA102A1D5; Thu, 9 Aug 2018 07:09:20 +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=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id A74502A1C3 for ; Thu, 9 Aug 2018 07:09:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=ipRg/1W6onVO7TMZ7wZ6k5ueP8HiQ+VwRAJAxzmcxfA=; b=K6uvJShhcfkH/U HTpbdYoKKCl2OnanYjS2/s5pcwkfeiT3gF4XiunWFTsT4Tp7augSUvrcte4iTkB5qtXnumh1p0Lmr PLmbHPkewdUbZlqzibA/S1YsYw85HQTHwbbSZS8xWgmT+/0jCaiMIy0+pftFpi1uKr7yOIiMF/NHf 9MR4rdZQu+rin66j0BLY/GOQNDq9/wj9tXI0In9y4hVakBp7jjhs4rgq9TurQ5Trs3Qr20791jhLd ngIRAjZQ8QLdUKcx4WEsdyp78HdLG+vXlN3Y/0GWTiJcPHfOhE79c5Seir7NIefIidIzd/jHBoI43 jA7ubWflFF8LUbMl9A/g==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1fnf4Q-0005wg-CN; Thu, 09 Aug 2018 07:09:18 +0000 Received: from mail-sh2.amlogic.com ([58.32.228.45]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fnf4H-0005fP-7M; Thu, 09 Aug 2018 07:09:15 +0000 Received: from ofmlt.linux-actions.org (10.18.20.235) by mail-sh2.amlogic.com (10.18.11.6) with Microsoft SMTP Server id 15.0.1320.4; Thu, 9 Aug 2018 15:09:00 +0800 From: Yixun Lan To: Jerome Brunet , Neil Armstrong Subject: [PATCH v4 2/3] clk: meson: add DT documentation for emmc clock controller Date: Thu, 9 Aug 2018 15:07:22 +0800 Message-ID: <20180809070724.11935-3-yixun.lan@amlogic.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180809070724.11935-1-yixun.lan@amlogic.com> References: <20180809070724.11935-1-yixun.lan@amlogic.com> MIME-Version: 1.0 X-Originating-IP: [10.18.20.235] X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180809_000909_436337_132964AC X-CRM114-Status: GOOD ( 10.39 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Rob Herring , Jianxin Pan , devicetree@vger.kernel.org, Stephen Boyd , Kevin Hilman , Michael Turquette , Yixun Lan , linux-kernel@vger.kernel.org, Martin Blumenstingl , Liang Yang , Qiufang Dai , Carlo Caione , linux-amlogic@lists.infradead.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Jian Hu Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Document the MMC sub clock controller driver, the potential consumer of this driver is MMC or NAND. Also add four clock bindings IDs which provided by this driver. Reviewed-by: Rob Herring Signed-off-by: Yixun Lan --- .../bindings/clock/amlogic,mmc-clkc.txt | 31 +++++++++++++++++++ include/dt-bindings/clock/amlogic,mmc-clkc.h | 17 ++++++++++ 2 files changed, 48 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/amlogic,mmc-clkc.txt create mode 100644 include/dt-bindings/clock/amlogic,mmc-clkc.h diff --git a/Documentation/devicetree/bindings/clock/amlogic,mmc-clkc.txt b/Documentation/devicetree/bindings/clock/amlogic,mmc-clkc.txt new file mode 100644 index 000000000000..9e6d34389be8 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/amlogic,mmc-clkc.txt @@ -0,0 +1,31 @@ +* Amlogic MMC Sub Clock Controller Driver + +The Amlogic MMC clock controller generates and supplies clock to support +MMC and NAND controller + +Required Properties: + +- compatible: should be: + "amlogic,gx-mmc-clkc" + "amlogic,axg-mmc-clkc" + +- #clock-cells: should be 1. +- clocks: phandles to clocks corresponding to the clock-names property +- clock-names: list of parent clock names + - "clkin0", "clkin1" + +Parent node should have the following properties : +- compatible: "amlogic,axg-mmc-clkc", "syscon". +- reg: base address and size of the MMC control register space. + +Example: Clock controller node: + +sd_mmc_c_clkc: clock-controller@7000 { + compatible = "amlogic,axg-mmc-clkc", "syscon"; + reg = <0x0 0x7000 0x0 0x4>; + #clock-cells = <1>; + + clock-names = "clkin0", "clkin1"; + clocks = <&clkc CLKID_SD_MMC_C_CLK0>, + <&clkc CLKID_FCLK_DIV2>; +}; diff --git a/include/dt-bindings/clock/amlogic,mmc-clkc.h b/include/dt-bindings/clock/amlogic,mmc-clkc.h new file mode 100644 index 000000000000..162b94949119 --- /dev/null +++ b/include/dt-bindings/clock/amlogic,mmc-clkc.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */ +/* + * Meson MMC sub clock tree IDs + * + * Copyright (c) 2018 Amlogic, Inc. All rights reserved. + * Author: Yixun Lan + */ + +#ifndef __MMC_CLKC_H +#define __MMC_CLKC_H + +#define CLKID_MMC_DIV 1 +#define CLKID_MMC_PHASE_CORE 2 +#define CLKID_MMC_PHASE_TX 3 +#define CLKID_MMC_PHASE_RX 4 + +#endif