From patchwork Thu May 4 11:48:46 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Icenowy Zheng X-Patchwork-Id: 9711609 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 1696060235 for ; Thu, 4 May 2017 11:49:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EE2AD2867A for ; Thu, 4 May 2017 11:49:35 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E1BF028683; Thu, 4 May 2017 11:49:35 +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=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6CE512867A for ; Thu, 4 May 2017 11:49:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751863AbdEDLtf (ORCPT ); Thu, 4 May 2017 07:49:35 -0400 Received: from hermes.aosc.io ([199.195.250.187]:39053 "EHLO hermes.aosc.io" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752702AbdEDLte (ORCPT ); Thu, 4 May 2017 07:49:34 -0400 Received: from localhost (localhost [127.0.0.1]) (Authenticated sender: icenowy@aosc.io) by hermes.aosc.io (Postfix) with ESMTPSA id D9A564B0FB; Thu, 4 May 2017 11:49:28 +0000 (UTC) From: Icenowy Zheng To: Maxime Ripard , Rob Herring , Chen-Yu Tsai Cc: linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-sunxi@googlegroups.com, Icenowy Zheng Subject: [PATCH v6 01/13] dt-bindings: add binding for the Allwinner DE2 CCU Date: Thu, 4 May 2017 19:48:46 +0800 Message-Id: <20170504114858.9008-2-icenowy@aosc.io> In-Reply-To: <20170504114858.9008-1-icenowy@aosc.io> References: <20170504114858.9008-1-icenowy@aosc.io> Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org 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. Also add the device tree binding headers. Signed-off-by: Icenowy Zheng Acked-by: Rob Herring --- Changes in v6: - Added Rob's ACK. - Drpoped A64's compatible as it's not appropriate now. Changes in v5: - Moved dt-binding headers here. - Changed dt-binding headers' license header to SPDX license. Changes in v4: - Dropped the leading 0 in clock at 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 | 30 ++++++++++++++++++++++ include/dt-bindings/clock/sun8i-de2.h | 18 +++++++++++++ include/dt-bindings/reset/sun8i-de2.h | 14 ++++++++++ 3 files changed, 62 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/sun8i-de2.txt create mode 100644 include/dt-bindings/clock/sun8i-de2.h create mode 100644 include/dt-bindings/reset/sun8i-de2.h diff --git a/Documentation/devicetree/bindings/clock/sun8i-de2.txt b/Documentation/devicetree/bindings/clock/sun8i-de2.txt new file mode 100644 index 000000000000..d710c0111cd3 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/sun8i-de2.txt @@ -0,0 +1,30 @@ +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-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,sun8i-a83t-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>; +}; diff --git a/include/dt-bindings/clock/sun8i-de2.h b/include/dt-bindings/clock/sun8i-de2.h new file mode 100644 index 000000000000..3bed63b524aa --- /dev/null +++ b/include/dt-bindings/clock/sun8i-de2.h @@ -0,0 +1,18 @@ +/* + * Copyright (C) 2016 Icenowy Zheng + * + * SPDX-License-Identifier: (GPL-2.0+ OR MIT) + */ + +#ifndef _DT_BINDINGS_CLOCK_SUN8I_DE2_H_ +#define _DT_BINDINGS_CLOCK_SUN8I_DE2_H_ + +#define CLK_BUS_MIXER0 0 +#define CLK_BUS_MIXER1 1 +#define CLK_BUS_WB 2 + +#define CLK_MIXER0 6 +#define CLK_MIXER1 7 +#define CLK_WB 8 + +#endif /* _DT_BINDINGS_CLOCK_SUN8I_DE2_H_ */ diff --git a/include/dt-bindings/reset/sun8i-de2.h b/include/dt-bindings/reset/sun8i-de2.h new file mode 100644 index 000000000000..9526017432f0 --- /dev/null +++ b/include/dt-bindings/reset/sun8i-de2.h @@ -0,0 +1,14 @@ +/* + * Copyright (C) 2016 Icenowy Zheng + * + * SPDX-License-Identifier: (GPL-2.0+ OR MIT) + */ + +#ifndef _DT_BINDINGS_RESET_SUN8I_DE2_H_ +#define _DT_BINDINGS_RESET_SUN8I_DE2_H_ + +#define RST_MIXER0 0 +#define RST_MIXER1 1 +#define RST_WB 2 + +#endif /* _DT_BINDINGS_RESET_SUN8I_DE2_H_ */