From mboxrd@z Thu Jan 1 00:00:00 1970 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=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 8C554C0018C for ; Mon, 7 Dec 2020 14:51:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5BA2F2337F for ; Mon, 7 Dec 2020 14:51:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726953AbgLGOvX (ORCPT ); Mon, 7 Dec 2020 09:51:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43536 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725772AbgLGOvX (ORCPT ); Mon, 7 Dec 2020 09:51:23 -0500 Received: from mail-pf1-x42e.google.com (mail-pf1-x42e.google.com [IPv6:2607:f8b0:4864:20::42e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C6343C061714; Mon, 7 Dec 2020 06:50:42 -0800 (PST) Received: by mail-pf1-x42e.google.com with SMTP id w6so10210084pfu.1; Mon, 07 Dec 2020 06:50:42 -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=cmg2T7+AJCDyGn3IeGNNxalJsZxSJ5YTqgBNJF99XffGtxxE0TDhDRhgmUDvizISlR ENtVAgVS7AIKGhipsYDOx7wDHlPIi0/ua937wOHh5MWS7H/L70eUbrBuHH+8xeui0aIM VKeSKYsJwD+H9yoyONWlhuixrOPPHBNafShf3wam08luKVJoGkpYh9OLq8ghipnigDAH McRgG3/hAv2UE++jOuc4yFIRIIKtoc/2snW0C+hu52HzZYa6ZgOq4YE1yJRTKNOYnjZW i/yXK48KTivqzAt0zi3TfkOmnxw8/Cu1s5c/BHyplYnqZrDZZ3tgmOT0xVNmjEdd76S+ Ol3A== 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=dLkT+4aIANtOgCdfn3GwXu47TQMj6Odq/9ov/VLKWtb051VVezzy2V5T7spt2Z06FX GPmVf5FP4lvgzwkQBTjAD2DhjkwHTOmaOpu93Lvwgc8IlaOdrtAaAIryieTvw1pqcWIC eHrxaJ90DQqH5GgrbM1bwAzorkqDcnJINim9LZC2sNyRRlRulKO6zcjCHKWNyqYr3VaK +YIYYsozriRXBjPQPiuoLlsfDsx0uHlYKy6q1OrdiokPodoruM0JiQlsCDU9Lbx4hpVT C//LHjzj1Q01ZLIWTS4/YN080wG05mMy0SEt3i1gEOxDeHETxW7mpb1GMFCogKf//qcF Y6eA== X-Gm-Message-State: AOAM533rSrSolydwIojnQL0IWThFEeZ77zoMZStO09OSFMfAK3KTy+GU LKkE/yxTzKkp5m4NIh1JU0M= X-Google-Smtp-Source: ABdhPJyKpX2a7mvALsnTaLYQx7tlpM/+NFda76qppB4xZEX9EENG5FPCfTTvxUA69OanZtLLIaYL9Q== X-Received: by 2002:a17:902:b209:b029:d8:e821:efc6 with SMTP id t9-20020a170902b209b02900d8e821efc6mr16222157plr.5.1607352642179; Mon, 07 Dec 2020 06:50:42 -0800 (PST) Received: from nj08008nbu.spreadtrum.com ([117.18.48.82]) by smtp.gmail.com with ESMTPSA id u25sm10360249pgl.68.2020.12.07.06.50.38 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 07 Dec 2020 06:50:41 -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 Cc: orsonzhai@gmail.com, zhang.lyra@gmail.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org Subject: [PATCH v1 2/6] drm/sprd: add Unisoc's drm kms master Date: Mon, 7 Dec 2020 22:50:22 +0800 Message-Id: <1607352626-26088-3-git-send-email-kevin3.tang@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1607352626-26088-1-git-send-email-kevin3.tang@gmail.com> References: <1607352626-26088-1-git-send-email-kevin3.tang@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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_ */ -- 2.7.4 From mboxrd@z Thu Jan 1 00:00:00 1970 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 32B3DC433FE for ; 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Mon, 07 Dec 2020 06:50:42 -0800 (PST) Received: from nj08008nbu.spreadtrum.com ([117.18.48.82]) by smtp.gmail.com with ESMTPSA id u25sm10360249pgl.68.2020.12.07.06.50.38 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 07 Dec 2020 06:50:41 -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 v1 2/6] drm/sprd: add Unisoc's drm kms master Date: Mon, 7 Dec 2020 22:50:22 +0800 Message-Id: <1607352626-26088-3-git-send-email-kevin3.tang@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1607352626-26088-1-git-send-email-kevin3.tang@gmail.com> References: <1607352626-26088-1-git-send-email-kevin3.tang@gmail.com> X-Mailman-Approved-At: Tue, 08 Dec 2020 08:32:06 +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, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, zhang.lyra@gmail.com MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit 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_ */ -- 2.7.4 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel