From patchwork Fri Jul 1 06:28:03 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?UmV4LUJDIENoZW4gKOmZs+afj+i+sCk=?= X-Patchwork-Id: 586975 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 78622CCA486 for ; Fri, 1 Jul 2022 06:28:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232539AbiGAG2f (ORCPT ); Fri, 1 Jul 2022 02:28:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59352 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234899AbiGAG21 (ORCPT ); Fri, 1 Jul 2022 02:28:27 -0400 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 14F2312AA2; Thu, 30 Jun 2022 23:28:22 -0700 (PDT) X-UUID: 5885de387377461c9cac4e4ec41d6159-20220701 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.7, REQID:c4044983-fb55-4cbe-a9d7-d928ebcc510d, OB:0, LO B:0,IP:0,URL:0,TC:0,Content:-5,EDM:0,RT:0,SF:0,FILE:0,RULE:Release_Ham,ACT ION:release,TS:-5 X-CID-META: VersionHash:87442a2, CLOUDID:c02f55d6-5d6d-4eaf-a635-828a3ee48b7c, C OID:IGNORED,Recheck:0,SF:nil,TC:nil,Content:0,EDM:-3,IP:nil,URL:0,File:nil ,QS:nil,BEC:nil,COL:1 X-UUID: 5885de387377461c9cac4e4ec41d6159-20220701 Received: from mtkexhb01.mediatek.inc [(172.21.101.102)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1121483382; Fri, 01 Jul 2022 14:28:13 +0800 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs11n2.mediatek.inc (172.21.101.187) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.3; Fri, 1 Jul 2022 14:28:11 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.3 via Frontend Transport; Fri, 1 Jul 2022 14:28:11 +0800 From: Bo-Chen Chen To: , , , , , , , , , CC: , , , , , , , , , , , , , , Bo-Chen Chen Subject: [PATCH v13 05/10] drm/mediatek: Add MT8195 Embedded DisplayPort driver Date: Fri, 1 Jul 2022 14:28:03 +0800 Message-ID: <20220701062808.18596-6-rex-bc.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20220701062808.18596-1-rex-bc.chen@mediatek.com> References: <20220701062808.18596-1-rex-bc.chen@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org From: Markus Schneider-Pargmann This patch adds a embedded displayport driver for the MediaTek mt8195 SoC. It supports the MT8195, the embedded DisplayPort units. It offers DisplayPort 1.4 with up to 4 lanes. The driver creates a child device for the phy. The child device will never exist without the parent being active. As they are sharing a register range, the parent passes a regmap pointer to the child so that both can work with the same register range. The phy driver sets device data that is read by the parent to get the phy device that can be used to control the phy properties. This driver is based on an initial version by Jitao shi Signed-off-by: Markus Schneider-Pargmann Signed-off-by: Guillaume Ranquet Signed-off-by: Bo-Chen Chen --- drivers/gpu/drm/mediatek/Kconfig | 9 + drivers/gpu/drm/mediatek/Makefile | 2 + drivers/gpu/drm/mediatek/mtk_dp.c | 2137 +++++++++++++++++++++++++ drivers/gpu/drm/mediatek/mtk_dp_reg.h | 542 +++++++ 4 files changed, 2690 insertions(+) create mode 100644 drivers/gpu/drm/mediatek/mtk_dp.c create mode 100644 drivers/gpu/drm/mediatek/mtk_dp_reg.h diff --git a/drivers/gpu/drm/mediatek/Kconfig b/drivers/gpu/drm/mediatek/Kconfig index 2976d21e9a34..e66f4a3b6be0 100644 --- a/drivers/gpu/drm/mediatek/Kconfig +++ b/drivers/gpu/drm/mediatek/Kconfig @@ -21,6 +21,15 @@ config DRM_MEDIATEK This driver provides kernel mode setting and buffer management to userspace. +config DRM_MEDIATEK_DP + tristate "DRM DPTX Support for MediaTek SoCs" + depends on DRM_MEDIATEK + select PHY_MTK_DP + select DRM_DISPLAY_HELPER + select DRM_DISPLAY_DP_HELPER + help + DRM/KMS Display Port driver for MediaTek SoCs. + config DRM_MEDIATEK_HDMI tristate "DRM HDMI Support for Mediatek SoCs" depends on DRM_MEDIATEK diff --git a/drivers/gpu/drm/mediatek/Makefile b/drivers/gpu/drm/mediatek/Makefile index 29098d7c8307..17f89ef65b57 100644 --- a/drivers/gpu/drm/mediatek/Makefile +++ b/drivers/gpu/drm/mediatek/Makefile @@ -21,3 +21,5 @@ mediatek-drm-hdmi-objs := mtk_cec.o \ mtk_hdmi_ddc.o obj-$(CONFIG_DRM_MEDIATEK_HDMI) += mediatek-drm-hdmi.o + +obj-$(CONFIG_DRM_MEDIATEK_DP) += mtk_dp.o diff --git a/drivers/gpu/drm/mediatek/mtk_dp.c b/drivers/gpu/drm/mediatek/mtk_dp.c new file mode 100644 index 000000000000..b672d5a6f5bd --- /dev/null +++ b/drivers/gpu/drm/mediatek/mtk_dp.c @@ -0,0 +1,2137 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2019-2022 MediaTek Inc. + * Copyright (c) 2022 BayLibre + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include