From patchwork Tue Sep 25 02:20:41 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leilk Liu X-Patchwork-Id: 10613247 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 EF3FD913 for ; Tue, 25 Sep 2018 02:22:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DA6842A189 for ; Tue, 25 Sep 2018 02:22:36 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CD12C2A191; Tue, 25 Sep 2018 02:22:36 +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 85FA92A189 for ; Tue, 25 Sep 2018 02:22:36 +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=Nmcx7IQ6yolHAuCcNyRn8p4XWo6+PfThIOawZvAHmNI=; b=Jg3dcdOuyl+l6V Z3VshbVdT5Qo45owGABWpTxN3wzk+zlb4lW0tGhqkffeYS45xrHvfEdvStrrTCwRVYTwfRbfMEV/G CWOasQNZNTw9dxZcb1MhjQjsPMg7InmztBpB/DSbds6IzHEwU0zJcrOlpoJVEN4nuAsMQcXUeydCl W/h8hqHO+bawN0eZqwGbPbx6GjyAgWZP9QxKu9YKNA7rAElWQNZhTyg5umR7LkeM7I56RiLju7t2L mUkFD3s5/r957LVWLVSlPcz/jTF4BEe8LYudKpdRQjQIOct1h7YeNp44vl2+l3u1exCRLvRXOh2MC 8QME2NVBHPyiSkn/xsSA==; 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 1g4czZ-0002Wb-TJ; Tue, 25 Sep 2018 02:22:25 +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 1g4cyU-0002Ml-5y; Tue, 25 Sep 2018 02:21:21 +0000 X-UUID: dac8a18b4f9c4f0fbbee2dad81593109-20180925 Received: from mtkcas06.mediatek.inc [(172.21.101.30)] by mailgw01.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 1977793686; Tue, 25 Sep 2018 10:20:49 +0800 Received: from mtkcas08.mediatek.inc (172.21.101.126) by mtkmbs01n2.mediatek.inc (172.21.101.79) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 25 Sep 2018 10:20:47 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas08.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Tue, 25 Sep 2018 10:20:46 +0800 From: Leilk Liu To: Mark Brown Subject: [PATCH v4 1/3] spi: mediatek: add bindings for Mediatek MT2712 soc platform Date: Tue, 25 Sep 2018 10:20:41 +0800 Message-ID: <1537842043-15255-2-git-send-email-leilk.liu@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1537842043-15255-1-git-send-email-leilk.liu@mediatek.com> References: <1537842043-15255-1-git-send-email-leilk.liu@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: D5A961C7741076093A5FD8CDEB2B9FFB9D3D3051F8FF60CF4560D388FF42FEE72000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180924_192118_371642_CF9DF0EF X-CRM114-Status: GOOD ( 11.49 ) 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 , 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 | 32 ++++++++++++++++++++ 1 file changed, 32 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..09cb2c4 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/spi-slave-mt27xx.txt @@ -0,0 +1,32 @@ +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" for the clock gate. + +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"; + assigned-clocks = <&topckgen CLK_TOP_SPISLV_SEL>; + assigned-clock-parents = <&topckgen CLK_TOP_UNIVPLL1_D2>; +};