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=-9.5 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 9D978C4BA3B for ; Thu, 27 Feb 2020 08:13:52 +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 7386C2467F for ; Thu, 27 Feb 2020 08:13:52 +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="I22E7Bgo" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7386C2467F 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 880046EC1A; Thu, 27 Feb 2020 08:13:12 +0000 (UTC) Received: from mail-pl1-x643.google.com (mail-pl1-x643.google.com [IPv6:2607:f8b0:4864:20::643]) by gabe.freedesktop.org (Postfix) with ESMTPS id 17C296E409 for ; Wed, 26 Feb 2020 09:46:36 +0000 (UTC) Received: by mail-pl1-x643.google.com with SMTP id t14so1071776plr.8 for ; Wed, 26 Feb 2020 01:46:36 -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=6/dkHrk4+Y54pn3T4xbphw6p1RfZlO3W3eLRMonp144=; b=I22E7BgoOelhSK+bhC+SQ2yUJsKU8QG9syhUAj6JEkWFGsFqEaBx7SCxmCyyjGPy5j xtMkxWOOmt/OhB5HWVRsapjD+NJ+AUY+Yjs9gRx7b7a4u+EYVKIv7FQWi/Sj+gVduM/D Br3me5dCp8P//xQVSyHvLfveFANOOJILIravYYMQmNr6mE9G9I2iqq6SDRh6HeR5V+0B Axb4OQfkYACqSS4i+vxeW2kxtTgkh5nl7R7wMNfwlcVX9tw6E/dFxuzGT2+8Eh/n5icU VMI00BgPZosuYhkv5+sSt4e2kUUO+RbzfI8VgZ8t3Nf3bdakBGzx9hUQkGMW+JJtbF7Q kxSA== 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=6/dkHrk4+Y54pn3T4xbphw6p1RfZlO3W3eLRMonp144=; b=crqPhim9i4q5V/inKrT9V8VLdUzKFWDbdo9UzS4hxDeDSfeZyPMEbCMXM7U1ePSQVF SuciJZfsp42lVHJBr8Et7EO4FfVwtdRLjZXH3hIiOnbssrXlyA3UVpHa0lvPrUfm9VxO rFsdNypXy7gjmYOsfB1to7h/vaWGEuxvlP3lgnY6EmyekIlpTIWGeRKzds4lFevJon6P hPZt+sl3cdEXYRZOca1dR0a7cItuSSo6cmf4+Kh0WENL6r0KdWFNdZSpNuTxWNuKvULY GgGYnqptud6R5JR4LR18LRQw3lGZXiAOz8n1bGwjtDMDo4xOYPgqX3w2UR9Zu9wm+0DS HKNw== X-Gm-Message-State: APjAAAU0GC+72YUOup8R3zWQUn4Pm18OyZnyKlL34cTWd12ZN/ER/ZRn ttVmaSNxJAWQXHIA5LhWVWY= X-Google-Smtp-Source: APXvYqwOg30bp2GDDavNYk65JXNYurw1F8iB7sQaTTM5zSSbommaBr/Hxela8VHfi5EPlra9T6yDTA== X-Received: by 2002:a17:902:8d92:: with SMTP id v18mr3326894plo.18.1582710395678; Wed, 26 Feb 2020 01:46:35 -0800 (PST) Received: from nj08008nbu.spreadtrum.com ([117.18.48.82]) by smtp.gmail.com with ESMTPSA id h185sm2276518pfg.135.2020.02.26.01.46.31 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 26 Feb 2020 01:46:35 -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 RFC v4 2/6] drm/sprd: add Unisoc's drm kms master Date: Wed, 26 Feb 2020 17:46:13 +0800 Message-Id: <1582710377-15489-3-git-send-email-kevin3.tang@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1582710377-15489-1-git-send-email-kevin3.tang@gmail.com> References: <1582710377-15489-1-git-send-email-kevin3.tang@gmail.com> X-Mailman-Approved-At: Thu, 27 Feb 2020 08:13:09 +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, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, zhang.lyra@gmail.com, baolin.wang@linaro.org 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" From: Kevin Tang 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: Baolin Wang 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 | 226 ++++++++++++++++++++++++++++++++++++++++ drivers/gpu/drm/sprd/sprd_drm.h | 16 +++ 6 files changed, 262 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 d0aa6cf..ce76a4d 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -389,6 +389,8 @@ source "drivers/gpu/drm/aspeed/Kconfig" source "drivers/gpu/drm/mcde/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 6493088..2178577 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -122,3 +122,4 @@ obj-$(CONFIG_DRM_LIMA) += lima/ obj-$(CONFIG_DRM_PANFROST) += panfrost/ obj-$(CONFIG_DRM_ASPEED_GFX) += aspeed/ obj-$(CONFIG_DRM_MCDE) += mcde/ +obj-$(CONFIG_DRM_SPRD) += sprd/ diff --git a/drivers/gpu/drm/sprd/Kconfig b/drivers/gpu/drm/sprd/Kconfig new file mode 100644 index 0000000..b189a54 --- /dev/null +++ b/drivers/gpu/drm/sprd/Kconfig @@ -0,0 +1,12 @@ +config DRM_SPRD + tristate "DRM Support for Unisoc SoCs Platform" + depends on ARCH_SPRD || COMPILE_TEST + depends on DRM && OF + select DRM_KMS_HELPER + select DRM_GEM_CMA_HELPER + select DRM_KMS_CMA_HELPER + select DRM_MIPI_DSI + help + Choose this option if you have a Unisoc chipsets. + If M is selected the module will be called sprd-drm. + diff --git a/drivers/gpu/drm/sprd/Makefile b/drivers/gpu/drm/sprd/Makefile new file mode 100644 index 0000000..86d95d9 --- /dev/null +++ b/drivers/gpu/drm/sprd/Makefile @@ -0,0 +1,5 @@ +# SPDX-License-Identifier: GPL-2.0 + +subdir-ccflags-y += -I$(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..4706185 --- /dev/null +++ b/drivers/gpu/drm/sprd/sprd_drm.c @@ -0,0 +1,226 @@ +// 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_init(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_VMAP_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; + struct sprd_drm *sprd; + int err; + + drm = drm_dev_alloc(&sprd_drm_drv, dev); + if (IS_ERR(drm)) + return PTR_ERR(drm); + + dev_set_drvdata(dev, drm); + + sprd = devm_kzalloc(drm->dev, sizeof(*sprd), GFP_KERNEL); + if (!sprd) + err = -ENOMEM; + + drm->dev_private = sprd; + + sprd_drm_mode_config_init(drm); + + /* bind and init sub drivers */ + err = component_bind_all(drm->dev, drm); + if (err) { + DRM_ERROR("failed to bind all component.\n"); + goto err_dc_cleanup; + } + + /* vblank init */ + err = drm_vblank_init(drm, drm->mode_config.num_crtc); + if (err) { + DRM_ERROR("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); + + err = drm_dev_register(drm, 0); + if (err < 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 err; +} + +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); + drm->dev_private = NULL; + dev_set_drvdata(dev, NULL); + + drm_dev_put(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) +{ + int ret; + + ret = dma_set_mask_and_coherent(&pdev->dev, ~0); + if (ret) { + DRM_ERROR("dma_set_mask_and_coherent failed (%d)\n", ret); + return ret; + } + + return drm_of_component_probe(&pdev->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 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..edf0881 --- /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