From patchwork Mon Mar 21 16:29:10 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: 12787521 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id ADA1FC433EF for ; Mon, 21 Mar 2022 16:29:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1351113AbiCUQbQ (ORCPT ); Mon, 21 Mar 2022 12:31:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57692 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1351117AbiCUQbN (ORCPT ); Mon, 21 Mar 2022 12:31:13 -0400 Received: from 189.cn (ptr.189.cn [183.61.185.104]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id A630C5006C; Mon, 21 Mar 2022 09:29:46 -0700 (PDT) HMM_SOURCE_IP: 10.64.8.43:55736.678671471 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 C177B100237; Tue, 22 Mar 2022 00:29:42 +0800 (CST) Received: from ([114.242.206.180]) by gateway-151646-dep-b7fbf7d79-vjdjk with ESMTP id d8698db3140e48fd93e127b6ffaf042d for mripard@kernel.org; Tue, 22 Mar 2022 00:29:45 CST X-Transaction-ID: d8698db3140e48fd93e127b6ffaf042d X-Real-From: 15330273260@189.cn X-Receive-IP: 114.242.206.180 X-MEDUSA-Status: 0 Sender: 15330273260@189.cn 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 Cc: linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: [PATCH v11 1/7] MIPS: Loongson64: dts: update the display controller device node Date: Tue, 22 Mar 2022 00:29:10 +0800 Message-Id: <20220321162916.1116541-2-15330273260@189.cn> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220321162916.1116541-1-15330273260@189.cn> References: <20220321162916.1116541-1-15330273260@189.cn> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org From: suijingfeng The display controller is a pci device, it is used in ls2k1000 SoC and LS7A1000 bridge. Its PCI vendor id is 0x0014, Tts 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. Signed-off-by: suijingfeng Signed-off-by: Sui Jingfeng <15330273260@189.cn> --- .../boot/dts/loongson/loongson64-2k1000.dtsi | 24 +++++++++++++ arch/mips/boot/dts/loongson/ls7a-pch.dtsi | 36 ++++++++++++++++--- 2 files changed, 55 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..b168cccc3399 100644 --- a/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi +++ b/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi @@ -198,6 +198,30 @@ 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>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + dc_out_rgb0: endpoint { + }; + }; + port@1 { + reg = <1>; + dc_out_rgb1: endpoint { + }; + }; + }; + }; + 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..fcea73006f7a 100644 --- a/arch/mips/boot/dts/loongson/ls7a-pch.dtsi +++ b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi @@ -160,15 +160,41 @@ 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-gpio@0 { + compatible = "lsdc,i2c-gpio-0"; + reg = <6>; + }; + + i2c7: i2c-gpio@1 { + compatible = "lsdc,i2c-gpio-1"; + reg = <7>; + }; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + dc_out_rgb0: endpoint { + }; + }; + port@1 { + reg = <1>; + dc_out_rgb1: endpoint { + }; + }; + }; }; hda@7,0 {