From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759049AbcHYJka (ORCPT ); Thu, 25 Aug 2016 05:40:30 -0400 Received: from down.free-electrons.com ([37.187.137.238]:34209 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1758962AbcHYJk0 (ORCPT ); Thu, 25 Aug 2016 05:40:26 -0400 From: Florent Revest To: linux-media@vger.kernel.org Cc: florent.revest@free-electrons.com, linux-sunxi@googlegroups.com, maxime.ripard@free-electrons.com, posciak@chromium.org, hans.verkuil@cisco.com, thomas.petazzoni@free-electrons.com, mchehab@kernel.org, linux-kernel@vger.kernel.org, wens@csie.org Subject: [RFC 10/10] sunxi-cedrus: Add device tree binding document Date: Thu, 25 Aug 2016 11:39:49 +0200 Message-Id: <1472117989-21455-11-git-send-email-florent.revest@free-electrons.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1472117989-21455-1-git-send-email-florent.revest@free-electrons.com> References: <1472117989-21455-1-git-send-email-florent.revest@free-electrons.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Device Tree bindings for the Allwinner's video engine Signed-off-by: Florent Revest --- .../devicetree/bindings/media/sunxi-cedrus.txt | 44 ++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/sunxi-cedrus.txt diff --git a/Documentation/devicetree/bindings/media/sunxi-cedrus.txt b/Documentation/devicetree/bindings/media/sunxi-cedrus.txt new file mode 100644 index 0000000..26f2e09 --- /dev/null +++ b/Documentation/devicetree/bindings/media/sunxi-cedrus.txt @@ -0,0 +1,44 @@ +Device-Tree bindings for SUNXI video engine found in sunXi SoC family + +Required properties: +- compatible : "allwinner,sun5i-a13-video-engine"; +- memory-region : DMA pool for buffers allocation; +- clocks : list of clock specifiers, corresponding to + entries in clock-names property; +- clock-names : should contain "ahb", "mod" and "ram" entries; +- resets : phandle for reset; +- interrupts : should contain VE interrupt number; +- reg : should contain register base and length of VE. + +Example: + +reserved-memory { + #address-cells = <1>; + #size-cells = <1>; + ranges; + + ve_reserved: cma { + compatible = "shared-dma-pool"; + reg = <0x43d00000 0x9000000>; + no-map; + linux,cma-default; + }; +}; + +video-engine { + compatible = "allwinner,sun5i-a13-video-engine"; + memory-region = <&ve_reserved>; + + clocks = <&ahb_gates 32>, <&ccu CLK_VE>, + <&dram_gates 0>; + clock-names = "ahb", "mod", "ram"; + + assigned-clocks = <&ccu CLK_VE>; + assigned-clock-rates = <320000000>; + + resets = <&ccu RST_VE>; + + interrupts = <53>; + + reg = <0x01c0e000 4096>; +}; -- 2.7.4