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=ham 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 26F21C433E0 for ; Mon, 22 Feb 2021 13:28:39 +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 B81D364E40 for ; Mon, 22 Feb 2021 13:28:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B81D364E40 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 DA4FF6E51C; Mon, 22 Feb 2021 13:28:37 +0000 (UTC) Received: from mail-pj1-x1032.google.com (mail-pj1-x1032.google.com [IPv6:2607:f8b0:4864:20::1032]) by gabe.freedesktop.org (Postfix) with ESMTPS id CEE056E51C for ; Mon, 22 Feb 2021 13:28:36 +0000 (UTC) Received: by mail-pj1-x1032.google.com with SMTP id o6so754676pjf.5 for ; Mon, 22 Feb 2021 05:28:36 -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 :mime-version:content-transfer-encoding; bh=yhzLKF0gHxnZZwvUdp7pNjojv5m28efXgZp5W0QaBgc=; b=W/kUZ7NT4GVjMASl8Is0lC2ihazXz/InMeOvHP6HMSPggfZsZDttsNpSuwv4/pYsiZ CsYh6UFtK2eC03N4Iew6ZMKh4tsxDxb9oz+yayRbKHU8WuRVEKgmPpYBrukLDp3H6fKM XWNEo9m3AYUumVCnHjqOQB8DmsVFcL4AxArlUsZV+S1JEbGEKMcF6kU2juzx3QqAbkPp ZXHzjueC7n2TrVujEPDnqBBn8td76H7ruA3xqanvid8XppuFpwUuoSTUWArZ9SkOjhEk NN867xs8gzQCkfPKmZy4dw0HUR3t/u3DLuWmzyyjeGrlFymJpRqb7ov7QACBpmBjubcn k/cg== 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:mime-version:content-transfer-encoding; bh=yhzLKF0gHxnZZwvUdp7pNjojv5m28efXgZp5W0QaBgc=; b=XbykWDQAVSW99z3DKtWlQ3TBMbiafPdVsV2pl2SVkfD+ZKyE2XABRErTXvn2FL1Uhj tsdao/7O3qeLA/uaQIL2QSMUBsJTEORUZn5/113yW8S8cjdtxpO1nQ6YX+T0rj8Hx1ae 2p5aQys2Pfc5ZtfUEJ46zr2VWxOuuyU2/eZZ19CWxTQB9czx1GTSrsPqNXQhJyCr7y0O l3PgUDeReTsb7nV1ewbECE13GSWKQXetAkLaB+wmpeoVDwKGaKT41dJM0tm+tN6JOwo7 LqsxgbNGVZMs6wV4iTBSYzCOaZiWVTBlH9KAw2KeMjNa8ZSNcUNsia/6b7WTWTJRrxZu WJjg== X-Gm-Message-State: AOAM531481bxA1lGuQPqebB2TmdE6WQdpNGKZiXACqj5IRofPnJKAO4k SYXRif6mgJg4orFs4DAtSl8= X-Google-Smtp-Source: ABdhPJziTOgYDaGK925r0Db0/Mmdx3BwFCn7Sv97yHPP0A3pkzPlYkpOrCZOBlu+0+jK/XWIEQ0xmw== X-Received: by 2002:a17:90a:748e:: with SMTP id p14mr8321560pjk.182.1614000516520; Mon, 22 Feb 2021 05:28:36 -0800 (PST) Received: from nj08008nbu.spreadtrum.com ([117.18.48.82]) by smtp.gmail.com with ESMTPSA id 141sm19585334pfa.65.2021.02.22.05.28.33 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 22 Feb 2021 05:28:36 -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 v4 2/6] drm/sprd: add Unisoc's drm kms master Date: Mon, 22 Feb 2021 21:28:18 +0800 Message-Id: <20210222132822.7830-3-kevin3.tang@gmail.com> X-Mailer: git-send-email 2.29.0 In-Reply-To: <20210222132822.7830-1-kevin3.tang@gmail.com> References: <20210222132822.7830-1-kevin3.tang@gmail.com> MIME-Version: 1.0 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 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 v4: - Move the devm_drm_dev_alloc to master_ops->bind function. - The managed drmm_mode_config_init() it is no longer necessary for drivers to explicitly call drm_mode_config_cleanup, so delete it. --- 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 | 217 ++++++++++++++++++++++++++++++++ drivers/gpu/drm/sprd/sprd_drm.h | 16 +++ 6 files changed, 253 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 8bf103de1..9d6ce2867 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -382,6 +382,8 @@ 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 02c229392..42d211d9c 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -126,3 +126,4 @@ 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 000000000..6e80cc9f3 --- /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 000000000..86d95d93a --- /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 000000000..a1d3ed655 --- /dev/null +++ b/drivers/gpu/drm/sprd/sprd_drm.c @@ -0,0 +1,217 @@ +// 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 platform_device *pdev = to_platform_device(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; + platform_set_drvdata(pdev, drm); + + 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"); + return ret; + } + + /* 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); + 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); + + 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; + int ret; + + ret = dma_set_mask_and_coherent(dev, ~0UL); + if (ret) { + dev_err(dev, "dma_set_mask_and_coherent failed (%d)\n", ret); + return ret; + } + + 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 000000000..9781fd591 --- /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_ */ -- 2.29.0 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel