From patchwork Tue Sep 4 01:51:44 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leilk Liu X-Patchwork-Id: 10586461 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 C4165139B for ; Tue, 4 Sep 2018 01:53:03 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B370029010 for ; Tue, 4 Sep 2018 01:53:03 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A735A29013; Tue, 4 Sep 2018 01:53:03 +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,RCVD_IN_DNSWL_NONE,UNPARSEABLE_RELAY 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 1BFD329010 for ; Tue, 4 Sep 2018 01:53:03 +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=RI//IFCFMOG9QtJWVZOQNuErjat1Qq8j9gxfp5/t2B0=; b=G35rmJ5qlDSdb5 ZWvHRj1jNmD42o81QU5QPSdlt73Jm9mA5pYYJHtKlAdMjoNxIsqcttExCchB7cAiquMO9gIqDGEsZ Gd9Vo451iPgT7Es7vkHlXivEwGfKb3QIl5WpaO/VkySBc14xUYQm7fCjYFNvsAIOuNsoBxtEyZDyF VBoIxfCN+xiOMWYCyRGTyi2L03Yx5xDoWz19pF9o0i/DR0NOFdTnCfnZjzgeJYYLEfi3JXUSPLzhd hQE9WdotoX50Ps36A+8pZCbmj9hyvnmCIxu5HpCvk+huRSNyHFeiwlLuUc/l06v0Z1xmUsc0eVYx/ 7riVDLVusEOsaI9zi21w==; 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 1fx0WQ-00025L-JC; Tue, 04 Sep 2018 01:52:50 +0000 Received: from [210.61.82.183] (helo=mailgw01.mediatek.com) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fx0Vk-0001e3-M5; Tue, 04 Sep 2018 01:52:11 +0000 X-UUID: 4fdd7678e71c4b458a8d078f2d77ffc4-20180904 Received: from mtkcas08.mediatek.inc [(172.21.101.126)] by mailgw01.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 1234789877; Tue, 04 Sep 2018 09:51:53 +0800 Received: from mtkcas09.mediatek.inc (172.21.101.178) by mtkmbs01n2.mediatek.inc (172.21.101.79) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Tue, 4 Sep 2018 09:51:51 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1210.3 via Frontend Transport; Tue, 4 Sep 2018 09:51:50 +0800 From: Leilk Liu To: Mark Brown Subject: [PATCH v2 1/3] spis: mediatek: add bindings for Mediatek MT2712 soc platform Date: Tue, 4 Sep 2018 09:51:44 +0800 Message-ID: <1536025906-24422-2-git-send-email-leilk.liu@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1536025906-24422-1-git-send-email-leilk.liu@mediatek.com> References: <1536025906-24422-1-git-send-email-leilk.liu@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180903_185208_889609_CA71ADD9 X-CRM114-Status: GOOD ( 12.04 ) 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: Mark Rutland , devicetree@vger.kernel.org, Leilk Liu , Sascha Hauer , linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org, yt.shen@mediatek.com, linux-mediatek@lists.infradead.org, Matthias Brugger , mengqi.zhang@mediatek.com, 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-Virus-Scanned: ClamAV using ClamSMTP This patch adds a DT binding documentation for the MT2712 soc. Signed-off-by: Leilk Liu --- .../devicetree/bindings/spi/spi-slave-mt27xx.txt | 35 ++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/spi-slave-mt27xx.txt diff --git a/Documentation/devicetree/bindings/spi/spi-slave-mt27xx.txt b/Documentation/devicetree/bindings/spi/spi-slave-mt27xx.txt new file mode 100644 index 0000000..d379369 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/spi-slave-mt27xx.txt @@ -0,0 +1,35 @@ +Binding for MTK SPI Slave controller + +Required properties: +- compatible: should be one of the following. + - mediatek,mt2712-spi-slave: for mt2712 platforms +- reg: Address and length of the register set for the device. +- interrupts: Should contain spi interrupt. +- clocks: phandles to input clocks. + It's clock gate, and should be <&infracfg CLK_INFRA_AO_SPI1>. +- clock-names: should be "spi-clk" for the clock gate. +- spi-slave: Empty property indicating the SPI controller is used in slave mode. + +Optional properties: +- assigned-clocks: it's mux clock, should be <&topckgen CLK_TOP_SPISLV_SEL>. +- assigned-clock-parents: parent of mux clock. + It's PLL, and should be on of the following. + - <&topckgen CLK_TOP_UNIVPLL1_D2>: specify parent clock 312MHZ. + It's the default one. + - <&topckgen CLK_TOP_UNIVPLL1_D4>: specify parent clock 156MHZ. + - <&topckgen CLK_TOP_UNIVPLL2_D4>: specify parent clock 104MHZ. + - <&topckgen CLK_TOP_UNIVPLL1_D8>: specify parent clock 78MHZ. + +Example: +- SoC Specific Portion: +spis1: spi@10013000 { + compatible = "mediatek,mt2712-spi-slave"; + reg = <0 0x10013000 0 0x100>; + interrupts = ; + clocks = <&infracfg CLK_INFRA_AO_SPI1>; + clock-names = "spi-clk"; + assigned-clocks = <&topckgen CLK_TOP_SPISLV_SEL>; + assigned-clock-parents = <&topckgen CLK_TOP_UNIVPLL1_D2>; + spi-slave; + status = "disabled"; +};