From patchwork Sun Apr 16 12:08:39 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Icenowy Zheng X-Patchwork-Id: 9683409 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 9A20D600C5 for ; Mon, 17 Apr 2017 00:32:55 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8C1C72793A for ; Mon, 17 Apr 2017 00:32:55 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 800C227D4A; Mon, 17 Apr 2017 00:32:55 +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=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 1D0B52793A for ; Mon, 17 Apr 2017 00:32:55 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E25826E121; Mon, 17 Apr 2017 00:32:25 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from nov-007-i458.relay.mailchannels.net (nov-007-i458.relay.mailchannels.net [46.232.183.12]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1D34A6E0DE for ; Sun, 16 Apr 2017 12:09:55 +0000 (UTC) X-Sender-Id: lmn-tzduiowcrqmw|x-authsender|icenowy@aosc.io Received: from relay.mailchannels.net (localhost [127.0.0.1]) by relay.mailchannels.net (Postfix) with ESMTP id 46D311023CE; Sun, 16 Apr 2017 12:09:51 +0000 (UTC) Received: from hermes.aosc.io (unknown [100.96.129.119]) by relay.mailchannels.net (Postfix) with ESMTPA id 5777A10267D; Sun, 16 Apr 2017 12:09:50 +0000 (UTC) X-Sender-Id: lmn-tzduiowcrqmw|x-authsender|icenowy@aosc.io Received: from hermes.aosc.io (hermes.aosc.io [172.20.52.122]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384) by 0.0.0.0:2500 (trex/5.7.37); Sun, 16 Apr 2017 12:09:51 +0000 X-MC-Relay: Neutral X-MailChannels-SenderId: lmn-tzduiowcrqmw|x-authsender|icenowy@aosc.io X-MailChannels-Auth-Id: lmn-TZDUIOWCRQMW X-Broad-Whistle: 524094d21efb7ba8_1492344591131_67536903 X-MC-Loop-Signature: 1492344591130:3101340327 X-MC-Ingress-Time: 1492344591130 Received: from localhost (localhost [127.0.0.1]) (Authenticated sender: icenowy@aosc.io) by hermes.aosc.io (Postfix) with ESMTPSA id E062B46BA0; Sun, 16 Apr 2017 12:09:40 +0000 (UTC) From: Icenowy Zheng To: Rob Herring , Maxime Ripard , Chen-Yu Tsai , David Airlie , Jernej Skrabec Subject: [PATCH v4 01/11] dt-bindings: add binding for the Allwinner DE2 CCU Date: Sun, 16 Apr 2017 20:08:39 +0800 Message-Id: <20170416120849.54542-2-icenowy@aosc.io> In-Reply-To: <20170416120849.54542-1-icenowy@aosc.io> References: <20170416120849.54542-1-icenowy@aosc.io> X-Mailman-Approved-At: Mon, 17 Apr 2017 00:32:20 +0000 Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-sunxi@googlegroups.com, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Icenowy Zheng X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Allwinner "Display Engine 2.0" contains some clock controls in it. In order to add them as clock drivers, we need a device tree binding. Add the binding here. Signed-off-by: Icenowy Zheng Acked-by: Rob Herring --- Changes in v4: - Dropped the leading 0 in clock@1000000 . Changes in v3: - Fill the address space length of DE2 CCU to 0x100000, just reach the start of mixer0. .../devicetree/bindings/clock/sun8i-de2.txt | 31 ++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/sun8i-de2.txt diff --git a/Documentation/devicetree/bindings/clock/sun8i-de2.txt b/Documentation/devicetree/bindings/clock/sun8i-de2.txt new file mode 100644 index 000000000000..15a60bd7dcf3 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/sun8i-de2.txt @@ -0,0 +1,31 @@ +Allwinner Display Engine 2.0 Clock Control Binding +-------------------------------------------------- + +Required properties : +- compatible: must contain one of the following compatibles: + - "allwinner,sun8i-a83t-de2-clk" + - "allwinner,sun50i-a64-de2-clk" + - "allwinner,sun50i-h5-de2-clk" + +- reg: Must contain the registers base address and length +- clocks: phandle to the clocks feeding the display engine subsystem. + Three are needed: + - "mod": the display engine module clock + - "bus": the bus clock for the whole display engine subsystem +- clock-names: Must contain the clock names described just above +- resets: phandle to the reset control for the display engine subsystem. +- #clock-cells : must contain 1 +- #reset-cells : must contain 1 + +Example: +de2_clocks: clock@1000000 { + compatible = "allwinner,sun50i-a64-de2-clk"; + reg = <0x01000000 0x100000>; + clocks = <&ccu CLK_DE>, + <&ccu CLK_BUS_DE>; + clock-names = "mod", + "bus"; + resets = <&ccu RST_BUS_DE>; + #clock-cells = <1>; + #reset-cells = <1>; +};