From patchwork Mon Jul 23 21:47:40 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jae Hyun Yoo X-Patchwork-Id: 10541195 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 EF1DF91E for ; Mon, 23 Jul 2018 21:56:37 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DBB5728538 for ; Mon, 23 Jul 2018 21:56:37 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CD9D62856A; Mon, 23 Jul 2018 21:56:37 +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 788DC28538 for ; Mon, 23 Jul 2018 21:56:32 +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=Q5ez49sxJ25Cdhzb38emJNHlLp92/R3oxEQav3NmD3w=; b=QKvmbhXhRaez/QG0fv67x2aH65 vDNj57ht4I4FtalVx+wP6Uhkv3F3FuTjrEHLvOOw6faikAOl/5UnL4tpRe2TxqFw3c+CyGLL8xTcz l9eqQYrTLYPj2S6HaCvyum16xy5BOAjZC0MGA/AVyRXdIxJuwr+SiMJVJJw9YQPIT7+JlxvdyxG0f cRjPDNjOEJ/7v1uNGsDQoelT3TDG8tk5FfiRdY8qVwDpgIgVOby2BuLnlzc89LcR8auWZVjxf/m2N dIrQBc4yGrt2UY8Zh1CWA77UrS+CcvVJFzAIp0GZ7fdA94Fw+qMC42YU0ipUPtx5Yt9YsLJjVX1MP pSvTWD3Q==; 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 1fhioe-0008Py-4Y; Mon, 23 Jul 2018 21:56:28 +0000 Received: from mga07.intel.com ([134.134.136.100]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fhihB-0002i6-Ta for linux-arm-kernel@lists.infradead.org; Mon, 23 Jul 2018 21:48:48 +0000 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 23 Jul 2018 14:48:35 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.51,394,1526367600"; d="scan'208";a="66923099" Received: from maru.jf.intel.com ([10.54.51.80]) by FMSMGA003.fm.intel.com with ESMTP; 23 Jul 2018 14:48:33 -0700 From: Jae Hyun Yoo To: Jean Delvare , Guenter Roeck , Rob Herring , Mark Rutland , Lee Jones , Joel Stanley , Andrew Jeffery , Jonathan Corbet , Greg Kroah-Hartman , Gustavo Pimentel , Kishon Vijay Abraham I , Lorenzo Pieralisi , "Darrick J . Wong" , Eric Sandeen , Arnd Bergmann , Wu Hao , Tomohiro Kusumi , "Bryant G . Ly" , Frederic Barrat , "David S . Miller" , Mauro Carvalho Chehab , Andrew Morton , Randy Dunlap , Philippe Ombredanne , Vinod Koul , Stephen Boyd , David Kershner , Uwe Kleine-Konig , Sagar Dharia , Johan Hovold , Thomas Gleixner , Juergen Gross , Cyrille Pitchen Subject: [PATCH v7 01/12] dt-bindings: Add a document of PECI subsystem Date: Mon, 23 Jul 2018 14:47:40 -0700 Message-Id: <20180723214751.1733-2-jae.hyun.yoo@linux.intel.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20180723214751.1733-1-jae.hyun.yoo@linux.intel.com> References: <20180723214751.1733-1-jae.hyun.yoo@linux.intel.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180723_144846_169282_E38194C5 X-CRM114-Status: GOOD ( 15.59 ) 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: linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org, Jae Hyun Yoo , linux-aspeed@lists.ozlabs.org, linux-doc@vger.kernel.org, openbmc@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org 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 This commit adds a document of generic PECI bus, adapter and client driver. Signed-off-by: Jae Hyun Yoo Reviewed-by: Haiyue Wang Reviewed-by: James Feist Reviewed-by: Vernon Mauery Cc: Rob Herring Cc: Mark Rutland Cc: Andrew Jeffery Cc: Joel Stanley --- .../devicetree/bindings/peci/peci.txt | 43 +++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 Documentation/devicetree/bindings/peci/peci.txt diff --git a/Documentation/devicetree/bindings/peci/peci.txt b/Documentation/devicetree/bindings/peci/peci.txt new file mode 100644 index 000000000000..864b7ab4e9fa --- /dev/null +++ b/Documentation/devicetree/bindings/peci/peci.txt @@ -0,0 +1,43 @@ +Generic device tree configuration for PECI adapters +=================================================== + +Required properties: +- #address-cells : Should be <1>. Read more about client addresses below. +- #size-cells : Should be <0>. Read more about client addresses below. + +The cells properties above define that an address of CPU clients of a PECI bus +are described by a single value. + +Example: + peci0: peci-bus@0 { + compatible = "vendor,soc-peci"; + reg = <0x0 0x1000>; + #address-cells = <1>; + #size-cells = <0>; + }; + +Generic device tree configuration for PECI clients +================================================== + +Required properties: +- compatible : Should contain name of PECI client. +- reg : Should contain address of a client CPU. Address range of CPU + clients starts from 0x30 based on PECI specification. + +Example: + peci-bus@0 { + compatible = "vendor,soc-peci"; + reg = <0x0 0x1000>; + #address-cells = <1>; + #size-cells = <0>; + + peci-client@30 { + compatible = "intel,peci-client"; + reg = <0x30>; + }; + + peci-client@31 { + compatible = "intel,peci-client"; + reg = <0x31>; + }; + };