From patchwork Fri Apr 1 16:22:46 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sui Jingfeng <15330273260@189.cn> X-Patchwork-Id: 12798480 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 722CEC433F5 for ; Fri, 1 Apr 2022 16:23:23 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id ADD9710E0FA; Fri, 1 Apr 2022 16:23:22 +0000 (UTC) Received: from 189.cn (ptr.189.cn [183.61.185.102]) by gabe.freedesktop.org (Postfix) with ESMTP id CB10910E0FA for ; Fri, 1 Apr 2022 16:23:21 +0000 (UTC) HMM_SOURCE_IP: 10.64.8.43:38814.38631177 HMM_ATTACHE_NUM: 0000 HMM_SOURCE_TYPE: SMTP Received: from clientip-114.242.206.180 (unknown [10.64.8.43]) by 189.cn (HERMES) with SMTP id 8E6641002B4; Sat, 2 Apr 2022 00:23:08 +0800 (CST) Received: from ([172.27.8.53]) by gateway-151646-dep-b7fbf7d79-vjdjk with ESMTP id c082e2cc7bdf470492cdf6aced5d02f7 for mripard@kernel.org; Sat, 02 Apr 2022 00:23:20 CST X-Transaction-ID: c082e2cc7bdf470492cdf6aced5d02f7 X-Real-From: 15330273260@189.cn X-Receive-IP: 172.27.8.53 X-MEDUSA-Status: 0 From: Sui Jingfeng <15330273260@189.cn> To: Maxime Ripard , Thomas Zimmermann , Roland Scheidegger , Zack Rusin , Christian Gmeiner , David Airlie , Daniel Vetter , Rob Herring , Thomas Bogendoerfer , Dan Carpenter , Krzysztof Kozlowski , Andrey Zhizhikin , Sam Ravnborg , "David S . Miller" , Jiaxun Yang , Lucas Stach , Maarten Lankhorst , Ilia Mirkin , Qing Zhang , suijingfeng Subject: [PATCH v14 1/6] MIPS: Loongson64: dts: update the display controller device node Date: Sat, 2 Apr 2022 00:22:46 +0800 Message-Id: <20220401162251.1665081-2-15330273260@189.cn> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220401162251.1665081-1-15330273260@189.cn> References: <20220401162251.1665081-1-15330273260@189.cn> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, linux-mips@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The display controller is a pci device, it is used in ls2k1000 SoC and LS7A1000 bridge. Its PCI vendor id is 0x0014, its PCI device id is 0x7a06. In order to let the driver to know which chip the DC is contained in, the compatible of the display controller is named according to the chip's name. For LS7A1000, there are 4 dedicated GPIOs whose control register is located at the DC register space. They are used to emulate i2c for reading edid from the monitor. One for DVO0, another for DVO1. LS2K1000 and LS2K0500 SoC don't have such GPIOs, they grab i2c adapter from other module, either general purpose GPIO emulated i2c or hardware i2c adapter. This patch add common part of the DC property only, it does not contain ports property note. As it is for the generic boards which using transparent encoder only. Signed-off-by: Sui Jingfeng <15330273260@189.cn> --- .../boot/dts/loongson/loongson64-2k1000.dtsi | 8 +++++++ arch/mips/boot/dts/loongson/ls7a-pch.dtsi | 22 ++++++++++++++----- 2 files changed, 25 insertions(+), 5 deletions(-) diff --git a/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi b/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi index 8143a61111e3..2ecb5a232f22 100644 --- a/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi +++ b/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi @@ -198,6 +198,14 @@ sata@8,0 { interrupt-parent = <&liointc0>; }; + lsdc: display-controller@6,0 { + compatible = "loongson,ls2k1000-dc"; + + reg = <0x3000 0x0 0x0 0x0 0x0>; + interrupts = <28 IRQ_TYPE_LEVEL_LOW>; + interrupt-parent = <&liointc0>; + }; + pci_bridge@9,0 { compatible = "pci0014,7a19.0", "pci0014,7a19", diff --git a/arch/mips/boot/dts/loongson/ls7a-pch.dtsi b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi index 2f45fce2cdc4..fcae7b20c5a2 100644 --- a/arch/mips/boot/dts/loongson/ls7a-pch.dtsi +++ b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi @@ -160,15 +160,27 @@ gpu@6,0 { interrupt-parent = <&pic>; }; - dc@6,1 { - compatible = "pci0014,7a06.0", - "pci0014,7a06", - "pciclass030000", - "pciclass0300"; + lsdc: display-controller@6,1 { + compatible = "loongson,ls7a1000-dc"; reg = <0x3100 0x0 0x0 0x0 0x0>; interrupts = <28 IRQ_TYPE_LEVEL_HIGH>; interrupt-parent = <&pic>; + + #address-cells = <1>; + #size-cells = <0>; + + i2c6: i2c@6 { + compatible = "loongson,gpio-i2c"; + loongson,sda = <0>; + loongson,scl = <1>; + }; + + i2c7: i2c@7 { + compatible = "loongson,gpio-i2c"; + loongson,sda = <2>; + loongson,scl = <3>; + }; }; hda@7,0 {