From patchwork Mon Nov 30 14:28:29 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kevin Tang X-Patchwork-Id: 11942199 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.5 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1CF17C64E7A for ; Tue, 1 Dec 2020 08:24:24 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id A9FA6217A0 for ; Tue, 1 Dec 2020 08:24:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="eL0yKj21" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A9FA6217A0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A75CE6E526; Tue, 1 Dec 2020 08:23:46 +0000 (UTC) Received: from mail-pj1-x1031.google.com (mail-pj1-x1031.google.com [IPv6:2607:f8b0:4864:20::1031]) by gabe.freedesktop.org (Postfix) with ESMTPS id E52F96E4F1 for ; Mon, 30 Nov 2020 14:28:47 +0000 (UTC) Received: by mail-pj1-x1031.google.com with SMTP id l23so540528pjg.1 for ; Mon, 30 Nov 2020 06:28:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=qsfbB3ftc4SWRo6fqf2S6NDmY/XvU+iKe8BxMSK5i4w=; b=eL0yKj2119MuLv+0j2Filygf1JEgF90PHnyUvjviUQEQMM21WjQEN2KmH/1gM04Ghy DmUFWHOX1jcZvES+slNk4i4tPFg1+CLUP0bMu+x1kBZdiBA2efgzXBgOj4idg4sGflh4 XmwGvNd3gbq/eQ3DT7Gt2mC5NH0ZOK8ZilePEMhUZRoxWGvJqUEemlB6Ug0up9zNAaMp K57NFwMy+6MvBE4BbOFRKfaKdtTZo4wLnjgNWcTQ/oAVD0yZT/XJA7bud1fBzg9J1n6e tzJbXZortG8QIUP3OOBSXGwjlydmGgZ9JXWWVRqDynKu05Dv5pUmaqz/0cY8WTcGvtb2 Jc8Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=qsfbB3ftc4SWRo6fqf2S6NDmY/XvU+iKe8BxMSK5i4w=; b=L/qA35ozHVY2cqawBddivU+ioCDzkVms53aa34Dp1MOWLJWcRvR0fw5/wFZbANnRxw ZQi+e+0iBII0wFJN6gelInXkLR1iVpEAlwkBFxnvtKIWOOAWr5wP1Q0ZGEtWv+TghJIa DsrCbZFYna+HCArjDQm66akSd3heZIRsHt9M2ALMa6QetDd9OF0ATQ07/dJQvVnaOPHX lUtr1vbM8w+Tv/hWhnMqkrWQQ9PoYZJ0CnURsZV3UM7p00ZNxIMKOfuCBJr6p7Se3L79 58GwHJ9rELFCJGT/69Effz7rtA2m5ZDUtV+BtIB/DOfCOkRdI3z0TnoLd/qFIsMfZ08B 8Eng== X-Gm-Message-State: AOAM532GP+9RYeFsg+1AlJIJbA7UkMyFRjxtS+inqEHZ1Igf69qHe9+0 x1rTs4xiPix34YZuluEymGh3GvFVeAc= X-Google-Smtp-Source: ABdhPJzLVI6u5oFpyaCAaizN019TG26T4ZcnwNppqBzLOs2Znw7P+8zC9InynoPMtdivBvPDYqGIRA== X-Received: by 2002:a17:902:e787:b029:d9:f88d:c32d with SMTP id cp7-20020a170902e787b02900d9f88dc32dmr18992489plb.79.1606746527537; Mon, 30 Nov 2020 06:28:47 -0800 (PST) Received: from nj08008nbu.spreadtrum.com ([117.18.48.82]) by smtp.gmail.com with ESMTPSA id 17sm15580479pfh.173.2020.11.30.06.28.44 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 30 Nov 2020 06:28:46 -0800 (PST) From: Kevin Tang To: maarten.lankhorst@linux.intel.com, mripard@kernel.org, sean@poorly.run, airlied@linux.ie, daniel@ffwll.ch, robh+dt@kernel.org, mark.rutland@arm.com, kevin3.tang@gmail.com Subject: [PATCH 2/6] drm/sprd: add Unisoc's drm kms master Date: Mon, 30 Nov 2020 22:28:29 +0800 Message-Id: <1606746513-30909-3-git-send-email-kevin3.tang@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1606746513-30909-1-git-send-email-kevin3.tang@gmail.com> References: <1606746513-30909-1-git-send-email-kevin3.tang@gmail.com> X-Mailman-Approved-At: Tue, 01 Dec 2020 08:23:37 +0000 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: orsonzhai@gmail.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, zhang.lyra@gmail.com MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Adds drm support for the Unisoc's display subsystem. This is drm kms driver, this driver provides support for the application framework in Android, Yocto and more. Application framework can access Unisoc's display internel peripherals through libdrm or libkms, it's test ok by modetest (DRM/KMS test tool) and Android HWComposer. Cc: Orson Zhai Cc: Chunyan Zhang Signed-off-by: Kevin Tang --- drivers/gpu/drm/Kconfig | 2 + drivers/gpu/drm/Makefile | 1 + drivers/gpu/drm/sprd/Kconfig | 12 +++ drivers/gpu/drm/sprd/Makefile | 5 + drivers/gpu/drm/sprd/sprd_drm.c | 222 ++++++++++++++++++++++++++++++++++++++++ drivers/gpu/drm/sprd/sprd_drm.h | 16 +++ 6 files changed, 258 insertions(+) create mode 100644 drivers/gpu/drm/sprd/Kconfig create mode 100644 drivers/gpu/drm/sprd/Makefile create mode 100644 drivers/gpu/drm/sprd/sprd_drm.c create mode 100644 drivers/gpu/drm/sprd/sprd_drm.h diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index 147d61b..15b4e13 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -388,6 +388,8 @@ source "drivers/gpu/drm/tidss/Kconfig" source "drivers/gpu/drm/xlnx/Kconfig" +source "drivers/gpu/drm/sprd/Kconfig" + # Keep legacy drivers last menuconfig DRM_LEGACY diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index 8156900..d3001e7 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -124,3 +124,4 @@ obj-$(CONFIG_DRM_ASPEED_GFX) += aspeed/ obj-$(CONFIG_DRM_MCDE) += mcde/ obj-$(CONFIG_DRM_TIDSS) += tidss/ obj-y += xlnx/ +obj-$(CONFIG_DRM_SPRD) += sprd/ diff --git a/drivers/gpu/drm/sprd/Kconfig b/drivers/gpu/drm/sprd/Kconfig new file mode 100644 index 0000000..6e80cc9 --- /dev/null +++ b/drivers/gpu/drm/sprd/Kconfig @@ -0,0 +1,12 @@ +config DRM_SPRD + tristate "DRM Support for Unisoc SoCs Platform" + depends on ARCH_SPRD || COMPILE_TEST + depends on DRM && OF + select DRM_KMS_HELPER + select DRM_GEM_CMA_HELPER + select DRM_KMS_CMA_HELPER + select DRM_MIPI_DSI + help + Choose this option if you have a Unisoc chipset. + If M is selected the module will be called sprd_drm. + diff --git a/drivers/gpu/drm/sprd/Makefile b/drivers/gpu/drm/sprd/Makefile new file mode 100644 index 0000000..86d95d9 --- /dev/null +++ b/drivers/gpu/drm/sprd/Makefile @@ -0,0 +1,5 @@ +# SPDX-License-Identifier: GPL-2.0 + +subdir-ccflags-y += -I$(srctree)/$(src) + +obj-y := sprd_drm.o diff --git a/drivers/gpu/drm/sprd/sprd_drm.c b/drivers/gpu/drm/sprd/sprd_drm.c new file mode 100644 index 0000000..ec101de --- /dev/null +++ b/drivers/gpu/drm/sprd/sprd_drm.c @@ -0,0 +1,222 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2020 Unisoc Inc. + */ + +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "sprd_drm.h" + +#define DRIVER_NAME "sprd" +#define DRIVER_DESC "Spreadtrum SoCs' DRM Driver" +#define DRIVER_DATE "20200201" +#define DRIVER_MAJOR 1 +#define DRIVER_MINOR 0 + +static const struct drm_mode_config_helper_funcs sprd_drm_mode_config_helper = { + .atomic_commit_tail = drm_atomic_helper_commit_tail_rpm, +}; + +static const struct drm_mode_config_funcs sprd_drm_mode_config_funcs = { + .fb_create = drm_gem_fb_create, + .atomic_check = drm_atomic_helper_check, + .atomic_commit = drm_atomic_helper_commit, +}; + +static void sprd_drm_mode_config_init(struct drm_device *drm) +{ + drm->mode_config.min_width = 0; + drm->mode_config.min_height = 0; + drm->mode_config.max_width = 8192; + drm->mode_config.max_height = 8192; + drm->mode_config.allow_fb_modifiers = true; + + drm->mode_config.funcs = &sprd_drm_mode_config_funcs; + drm->mode_config.helper_private = &sprd_drm_mode_config_helper; +} + +DEFINE_DRM_GEM_CMA_FOPS(sprd_drm_fops); + +static struct drm_driver sprd_drm_drv = { + .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC, + .fops = &sprd_drm_fops, + + /* GEM Operations */ + DRM_GEM_CMA_DRIVER_OPS, + + .name = DRIVER_NAME, + .desc = DRIVER_DESC, + .date = DRIVER_DATE, + .major = DRIVER_MAJOR, + .minor = DRIVER_MINOR, +}; + +static int sprd_drm_bind(struct device *dev) +{ + struct drm_device *drm = dev_get_drvdata(dev); + int ret; + + ret = drmm_mode_config_init(drm); + if (ret) + return ret; + + sprd_drm_mode_config_init(drm); + + /* bind and init sub drivers */ + ret = component_bind_all(drm->dev, drm); + if (ret) { + drm_err(drm, "failed to bind all component.\n"); + goto err_dc_cleanup; + } + + /* vblank init */ + ret = drm_vblank_init(drm, drm->mode_config.num_crtc); + if (ret) { + drm_err(drm, "failed to initialize vblank.\n"); + goto err_unbind_all; + } + /* with irq_enabled = true, we can use the vblank feature. */ + drm->irq_enabled = true; + + /* reset all the states of crtc/plane/encoder/connector */ + drm_mode_config_reset(drm); + + /* init kms poll for handling hpd */ + drm_kms_helper_poll_init(drm); + + ret = drm_dev_register(drm, 0); + if (ret < 0) + goto err_kms_helper_poll_fini; + + return 0; + +err_kms_helper_poll_fini: + drm_kms_helper_poll_fini(drm); +err_unbind_all: + component_unbind_all(drm->dev, drm); +err_dc_cleanup: + drm_mode_config_cleanup(drm); + return ret; +} + +static void sprd_drm_unbind(struct device *dev) +{ + struct drm_device *drm = dev_get_drvdata(dev); + + drm_dev_unregister(drm); + + drm_kms_helper_poll_fini(drm); + + drm_mode_config_cleanup(drm); + + component_unbind_all(drm->dev, drm); +} + +static const struct component_master_ops drm_component_ops = { + .bind = sprd_drm_bind, + .unbind = sprd_drm_unbind, +}; + +static int compare_of(struct device *dev, void *data) +{ + return dev->of_node == data; +} + +static int sprd_drm_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct drm_device *drm; + struct sprd_drm *sprd; + int ret; + + sprd = devm_drm_dev_alloc(dev, &sprd_drm_drv, struct sprd_drm, drm); + if (IS_ERR(sprd)) + return PTR_ERR(sprd); + + drm = &sprd->drm; + + ret = dma_set_mask_and_coherent(dev, ~0UL); + if (ret) { + drm_err(drm, "dma_set_mask_and_coherent failed (%d)\n", ret); + return ret; + } + + platform_set_drvdata(pdev, drm); + + return drm_of_component_probe(dev, compare_of, &drm_component_ops); +} + +static int sprd_drm_remove(struct platform_device *pdev) +{ + component_master_del(&pdev->dev, &drm_component_ops); + return 0; +} + +static void sprd_drm_shutdown(struct platform_device *pdev) +{ + struct drm_device *drm = platform_get_drvdata(pdev); + + if (!drm) { + drm_warn(drm, "drm device is not available, no shutdown\n"); + return; + } + + drm_atomic_helper_shutdown(drm); +} + +static const struct of_device_id drm_match_table[] = { + { .compatible = "sprd,display-subsystem", }, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(of, drm_match_table); + +static struct platform_driver sprd_drm_driver = { + .probe = sprd_drm_probe, + .remove = sprd_drm_remove, + .shutdown = sprd_drm_shutdown, + .driver = { + .name = "sprd-drm-drv", + .of_match_table = drm_match_table, + }, +}; + +static struct platform_driver *sprd_drm_drivers[] = { + &sprd_drm_driver, +}; + +static int __init sprd_drm_init(void) +{ + int ret; + + ret = platform_register_drivers(sprd_drm_drivers, + ARRAY_SIZE(sprd_drm_drivers)); + return ret; +} + +static void __exit sprd_drm_exit(void) +{ + platform_unregister_drivers(sprd_drm_drivers, + ARRAY_SIZE(sprd_drm_drivers)); +} + +module_init(sprd_drm_init); +module_exit(sprd_drm_exit); + +MODULE_AUTHOR("Leon He "); +MODULE_AUTHOR("Kevin Tang "); +MODULE_DESCRIPTION("Unisoc DRM KMS Master Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/gpu/drm/sprd/sprd_drm.h b/drivers/gpu/drm/sprd/sprd_drm.h new file mode 100644 index 0000000..9781fd5 --- /dev/null +++ b/drivers/gpu/drm/sprd/sprd_drm.h @@ -0,0 +1,16 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2020 Unisoc Inc. + */ + +#ifndef _SPRD_DRM_H_ +#define _SPRD_DRM_H_ + +#include +#include + +struct sprd_drm { + struct drm_device drm; +}; + +#endif /* _SPRD_DRM_H_ */