From patchwork Sun Apr 23 08:17:33 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ryder Lee X-Patchwork-Id: 9694573 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id A6BFA60245 for ; Sun, 23 Apr 2017 08:18:25 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 90F1126E69 for ; Sun, 23 Apr 2017 08:18:25 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 85AFD27D5E; Sun, 23 Apr 2017 08:18:25 +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=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 31BA526E69 for ; Sun, 23 Apr 2017 08:18:25 +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=QVffrWLzBGY1EPdTRDT7nm0dSbzoNFnGJQkwN+L/tA4=; b=nS+jMr2V8v0Jdv J/4QaKjOIcdQ4vZzC7DepeyJhWhSQ1ASpDxF/O8a4PfZktQnzRk09rh/EMaQxsj7CaoCJwTFBnwbD gSf6WqRU3Zo2hzmwr0IRMfBtutIqE1e8E4MbWVeXuGxVNDi599g5VMl+E/btshVQfUGle+KkTPAlF g8jiuo9t4DDWsa6T+LnUf5DQ/kalxxb1B0RLQiweaIwqRFCc6d4Pf03YlpiZ6JBQt15VUeUjpH38b zf//kx5h/RBCQNi9d/IGibuNklOVlGpCUjX11XkQdo18tnVg9ZdAhsQvoIfvlIUWan4vq1K9vKE4i KFZaAz+Bf3vh98nIkLyA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1d2Ciu-0002Ql-Mu; Sun, 23 Apr 2017 08:18:24 +0000 Received: from [210.61.82.184] (helo=mailgw02.mediatek.com) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1d2Cie-0002BN-EF; Sun, 23 Apr 2017 08:18:10 +0000 Received: from mtkhts07.mediatek.inc [(172.21.101.69)] by mailgw02.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 1529600524; Sun, 23 Apr 2017 16:17:39 +0800 Received: from mtkslt306.mediatek.inc (10.21.14.136) by mtkhts07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 14.3.266.1; Sun, 23 Apr 2017 16:17:37 +0800 From: Ryder Lee To: Kishon Vijay Abraham I , Rob Herring Subject: [PATCH 2/2] dt-bindings: phy: Add documentation for Mediatek PCIe PHY Date: Sun, 23 Apr 2017 16:17:33 +0800 Message-ID: <1492935453-17373-3-git-send-email-ryder.lee@mediatek.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1492935453-17373-1-git-send-email-ryder.lee@mediatek.com> References: <1492935453-17373-1-git-send-email-ryder.lee@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-20170423_011808_611559_C8383BAD X-CRM114-Status: GOOD ( 15.69 ) 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: devicetree@vger.kernel.org, Ryder Lee , linux-kernel@vger.kernel.org, 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 Add documentation for PCIe PHY available in MT7623 series SoCs. Signed-off-by: Ryder Lee --- .../devicetree/bindings/phy/phy-mt7623-pcie.txt | 67 ++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/phy-mt7623-pcie.txt diff --git a/Documentation/devicetree/bindings/phy/phy-mt7623-pcie.txt b/Documentation/devicetree/bindings/phy/phy-mt7623-pcie.txt new file mode 100644 index 0000000..27a9253 --- /dev/null +++ b/Documentation/devicetree/bindings/phy/phy-mt7623-pcie.txt @@ -0,0 +1,67 @@ +Mediatek MT7623 PCIe PHY +----------------------- + +Required properties: + - compatible: Should contain "mediatek,mt7623-pcie-phy" + - #phy-cells: must be 0 + - clocks: Must contain an entry in clock-names. + See ../clocks/clock-bindings.txt for details. + - clock-names: Must be "refclk" + - resets: Must contain an entry in reset-names. + See ../reset/reset.txt for details. + - reset-names: Must be "phy" + +Optional properties: + - phy-switch: The PHY on PCIe port2 is shared with USB u3phy2. If you + want to enable port2, you should contain it. + +Example: + + pcie0_phy: pciephy@1a149000 { + compatible = "mediatek,mt7623-pcie-phy"; + reg = <0 0x1a149000 0 0x1000>; + clocks = <&clk26m>; + clock-names = "pciephya_ref"; + #phy-cells = <0>; + status = "disabled"; + }; + + pcie1_phy: pciephy@1a14a000 { + compatible = "mediatek,mt7623-pcie-phy"; + reg = <0 0x1a14a000 0 0x1000>; + clocks = <&clk26m>; + clock-names = "pciephya_ref"; + #phy-cells = <0>; + status = "disabled"; + }; + + pcie2_phy: pciephy@1a244000 { + compatible = "mediatek,mt7623-pcie-phy"; + reg = <0 0x1a244000 0 0x1000>; + clocks = <&clk26m>; + clock-names = "pciephya_ref"; + #phy-cells = <0>; + + phy-switch = <&hifsys>; + status = "disabled"; + }; + +Specifying phy control of devices +--------------------------------- + +Device nodes should specify the configuration required in their "phys" +property, containing a phandle to the phy node and phy-names. + +Example: + +#include + +pcie: pcie@1a140000 { + ... + pcie@1,0 { + ... + phys = <&pcie0_phy>; + phy-names = "pcie-phy0"; + } + ... +};