From patchwork Mon Aug 12 18:49:46 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leonard Crestez X-Patchwork-Id: 11090653 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 8172B13B1 for ; Mon, 12 Aug 2019 18:51:05 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 72B2A284DA for ; Mon, 12 Aug 2019 18:51:05 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 665E7284FC; Mon, 12 Aug 2019 18:51:05 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED 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 197A4284DA for ; Mon, 12 Aug 2019 18:51:05 +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:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: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=7JnFGS80wPDczDloTzRIUXpZ0bjK+kTZRhKcAVLYKEg=; b=FT62MDNdei9KhimQPLkmynUcpn oE2WaBiK/2TbcC9/n2lHcgelLzoI88z4gldlhC1sEKspyTNviQ22OfHC57SKKa4fSGlyvZx/LQBoI cIdWy4JsTXUC377/xTcg/H0YnrBD1bIHyS9PqnyofJX93XMQPJ1ZTRR5mXSF91CL/y4P69KpqvG8v MYfWNpDIsivab6i+euRpcajCibpT1rPQcmlC9FREwj/eHR7dXtkcrDEbxRif1hJjqh8KQgZBSyc60 T9D1DQPyLfWxwS5Ql2isukJTO217+8qdrsZron8aO/8Bs4iaypMryhzdI++aC0HU02tLgdz30utkQ h+4Jx72Q==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hxFPM-000600-FA; Mon, 12 Aug 2019 18:51:04 +0000 Received: from inva021.nxp.com ([92.121.34.21]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hxFOK-00040N-GN for linux-arm-kernel@lists.infradead.org; Mon, 12 Aug 2019 18:50:03 +0000 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 6493620069C; Mon, 12 Aug 2019 20:49:57 +0200 (CEST) Received: from inva024.eu-rdc02.nxp.com (inva024.eu-rdc02.nxp.com [134.27.226.22]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 56966200692; Mon, 12 Aug 2019 20:49:57 +0200 (CEST) Received: from fsr-ub1864-112.ea.freescale.net (fsr-ub1864-112.ea.freescale.net [10.171.82.98]) by inva024.eu-rdc02.nxp.com (Postfix) with ESMTP id 545E6205ED; Mon, 12 Aug 2019 20:49:56 +0200 (CEST) From: Leonard Crestez To: Stephen Boyd , MyungJoo Ham , Kyungmin Park , Rob Herring Subject: [PATCH 2/7] dt-bindings: devfreq: Add bindings for generic imx buses Date: Mon, 12 Aug 2019 21:49:46 +0300 Message-Id: <97b0bff95ddb85b06ef3d2f8079faa36562a956d.1565633880.git.leonard.crestez@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: References: In-Reply-To: References: X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190812_115000_823102_EA3A78AF X-CRM114-Status: UNSURE ( 9.75 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Dong Aisheng , =?utf-8?b?QXJ0dXIgxZp3aWdvxYQ=?= , Abel Vesa , Saravana Kannan , Anson Huang , linux-arm-kernel@lists.infradead.org, Viresh Kumar , Michael Turquette , linux-pm@vger.kernel.org, linux-imx@nxp.com, Krzysztof Kozlowski , Chanwoo Choi , Will Deacon , Alexandre Bailon , kernel@pengutronix.de, Fabio Estevam , Mark Rutland , Shawn Guo , Georgi Djakov , devicetree@vger.kernel.org, Jacky Bai MIME-Version: 1.0 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 Add initial dt bindings for the interconnects inside i.MX chips. Multiple external IPs are involved but SOC integration means the software controllable interfaces are very similar. This is initially only for imx8mm but add an "fsl,imx8m-nic" fallback similar to exynos-bus. Signed-off-by: Leonard Crestez Acked-by: MyungJoo Ham --- .../devicetree/bindings/devfreq/imx.yaml | 50 +++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 Documentation/devicetree/bindings/devfreq/imx.yaml diff --git a/Documentation/devicetree/bindings/devfreq/imx.yaml b/Documentation/devicetree/bindings/devfreq/imx.yaml new file mode 100644 index 000000000000..0e2ee3a5205e --- /dev/null +++ b/Documentation/devicetree/bindings/devfreq/imx.yaml @@ -0,0 +1,50 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/devfreq/imx.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Generic i.MX bus frequency device + +maintainers: + - Leonard Crestez + +description: | + The i.MX SoC family has multiple buses for which clock frequency (and sometimes + voltage) can be adjusted. + + Some of those buses expose register areas mentioned in the memory maps as GPV + ("Global Programmers View") but not all. Access to this area might be denied for + normal world. + + The buses are based on externally licensed IPs such as ARM NIC-301 and Arteris + FlexNOC but DT bindings are specific to the integration of these bus + interconnect IPs into imx SOCs. + +properties: + compatible: + contains: + enum: + - fsl,imx8m-noc + - fsl,imx8m-nic + + reg: + maxItems: 1 + description: GPV area + + clocks: + maxItems: 1 + +required: + - compatible + - clocks + +examples: + - | + #include + noc: noc@32700000 { + compatible = "fsl,imx8mm-noc", "fsl,imx8m-noc"; + reg = <0x32700000 0x100000>; + clocks = <&clk IMX8MM_CLK_NOC>; + operating-points-v2 = <&noc_opp_table>; + };