From patchwork Fri Dec 11 07:45:16 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiancheng Xue X-Patchwork-Id: 7826881 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 2EB8B9F54F for ; Fri, 11 Dec 2015 08:04:34 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 40AD8200D9 for ; Fri, 11 Dec 2015 08:04:33 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 59D4A20495 for ; Fri, 11 Dec 2015 08:04:32 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1a7IfS-00012g-Hn; Fri, 11 Dec 2015 08:03:06 +0000 Received: from szxga02-in.huawei.com ([119.145.14.65]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1a7IfE-0000aD-I8 for linux-arm-kernel@lists.infradead.org; Fri, 11 Dec 2015 08:02:54 +0000 Received: from 172.24.1.47 (EHLO SZXEML429-HUB.china.huawei.com) ([172.24.1.47]) by szxrg02-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id CXV24986; Fri, 11 Dec 2015 15:58:29 +0800 (CST) Received: from wind-Tecal-RH2285.huawei.com (10.67.212.71) by SZXEML429-HUB.china.huawei.com (10.82.67.184) with Microsoft SMTP Server id 14.3.235.1; Fri, 11 Dec 2015 15:58:16 +0800 From: Jiancheng Xue To: , , , , , , , , , , , , , , Subject: [PATCH v3 2/7] clk: hisilicon: add dt-binding document for Hi3519 CRG Date: Fri, 11 Dec 2015 15:45:16 +0800 Message-ID: <1449819921-18464-3-git-send-email-xuejiancheng@huawei.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1449819921-18464-1-git-send-email-xuejiancheng@huawei.com> References: <1449819921-18464-1-git-send-email-xuejiancheng@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.67.212.71] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020201.566A8225.00EE, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: fac3491cc52b53c8e253cedd8b556c85 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20151211_000253_348790_897DA808 X-CRM114-Status: GOOD ( 12.24 ) X-Spam-Score: -4.2 (----) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: suwenping@hisilicon.com, devicetree@vger.kernel.org, yanhaifeng@hisilicon.com, linux-kernel@vger.kernel.org, xuejiancheng@hisilicon.com, gaofei@hisilicon.com, Jiancheng Xue , ml.yang@hisilicon.com, yanghongwei@hisilicon.com, zhangzhenxing@hisilicon.com, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable 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 add dt-binding document for Hi3519 CRG block Signed-off-by: Jiancheng Xue --- .../devicetree/bindings/clock/hi3519-crg.txt | 46 ++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/hi3519-crg.txt diff --git a/Documentation/devicetree/bindings/clock/hi3519-crg.txt b/Documentation/devicetree/bindings/clock/hi3519-crg.txt new file mode 100644 index 0000000..e0d30a4 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/hi3519-crg.txt @@ -0,0 +1,46 @@ +* Hisilicon Hi3519 Clock and Reset Generator(CRG) + +The Hi3519 CRG module provides clock and reset signals to various +controllers within the SoC. + +This binding uses the following bindings: + Documentation/devicetree/bindings/clock/clock-bindings.txt + Documentation/devicetree/bindings/reset/reset.txt + +Required Properties: + +- compatible: should be one of the following. + - "hisilicon,hi3519-crg" - controller compatible with Hi3519 SoC. + +- reg: physical base address of the controller and length of memory mapped + region. + +- #clock-cells: should be 1. + +Each clock is assigned an identifier and client nodes use this identifier +to specify the clock which they consume. + +All these identifier could be found in . + +- #reset-cells: should be 2. + +A reset signal can be controlled by writing a bit register in the CRG module. +The reset specifier consists of two cells. The first cell represents the +register offset relative to the base address. The second cell represents the +bit index in the register. + +Example: CRG nodes +CRG: clock-reset-controller { + compatible = "hisilicon,hi3519-crg"; + reg = <0x12010000 0x10000>; + #clock-cells = <1>; + #reset-cells = <2>; +}; + +Example: consumer nodes +i2c0: i2c@0x12110000 { + compatible = "hisilicon,hi3519-i2c"; + reg = <0x12110000 0x1000>; + clocks = <&CRG HI3519_I2C0_RST>;*/ + resets = <&CRG 0xE4 0>; +};