From patchwork Mon Apr 6 13:24:12 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Angelo Ribeiro X-Patchwork-Id: 11477687 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0446B112C for ; Tue, 7 Apr 2020 08:09:57 +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 D72E1206F7 for ; Tue, 7 Apr 2020 08:09:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=synopsys.com header.i=@synopsys.com header.b="fmuztpt5" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D72E1206F7 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=synopsys.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 A654C6E5A9; Tue, 7 Apr 2020 08:09:34 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from smtprelay-out1.synopsys.com (smtprelay-out1.synopsys.com [149.117.73.133]) by gabe.freedesktop.org (Postfix) with ESMTPS id 624ED6E3C1 for ; Mon, 6 Apr 2020 13:24:31 +0000 (UTC) Received: from mailhost.synopsys.com (mdc-mailhost2.synopsys.com [10.225.0.210]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by smtprelay-out1.synopsys.com (Postfix) with ESMTPS id 326A0404C4; Mon, 6 Apr 2020 13:24:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1586179471; bh=mPmEhBY7LzrL4MqyGXRn3Wt1r5NrIejP8WEkk1ffuMc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=fmuztpt5gAmyk3TUg5BLDskVrgJbLK2k/TIjAwxHfiQ4aOjLpECSmX//D+P9/IyuX MR1nfNnrWvWGuY2hBK3X1FQ6k8zH4SJqN17ad2vwxYKtxc3Syrnc3A+9rteutaWCyj soWLw/RsmbhbL8c1HxOawsVNGdw/wmzi/ml8LonNqMNbO7eTbsdIsAacwrDWgtxLPR 8oGe/fzeJQUVLyX4uDDPfLk2+JeiP1JCTP5E9GqLwv7m/FLul6O6nONRxBPxdzVJMt pt3HNLXbGnv/VqXuqLV1g4FVvWQPOFznhNSsm2u0rFEJeJfZXb3SIZymS7iH+5NwTs sGa30bHayUhfA== Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by mailhost.synopsys.com (Postfix) with ESMTP id A5960A0065; Mon, 6 Apr 2020 13:24:28 +0000 (UTC) From: Angelo Ribeiro To: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, robh+dt@kernel.org, maarten.lankhorst@linux.intel.com, mripard@kernel.org, airlied@linux.ie, daniel@ffwll.ch, Gustavo.Pimentel@synopsys.com, Joao.Pinto@synopsys.com Subject: [PATCH v2 2/4] drm: ipk: Add DRM driver for DesignWare IPK DSI Date: Mon, 6 Apr 2020 15:24:12 +0200 Message-Id: <488ff0f31581967517607e6860ab520839e29635.1586174459.git.angelo.ribeiro@synopsys.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: X-Mailman-Approved-At: Tue, 07 Apr 2020 08:09:32 +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: Angelo Ribeiro MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add support for Synopsys DesignWare VPG (Video Pattern Generator) and DRM driver for Synopsys DesignWare DSI Host IPK solution. Cc: Maarten Lankhorst Cc: Maxime Ripard Cc: David Airlie Cc: Daniel Vetter Cc: Gustavo Pimentel Cc: Joao Pinto Signed-off-by: Angelo Ribeiro --- drivers/gpu/drm/Kconfig | 2 + drivers/gpu/drm/Makefile | 1 + drivers/gpu/drm/ipk/Kconfig | 13 + drivers/gpu/drm/ipk/Makefile | 6 + drivers/gpu/drm/ipk/dw-drv.c | 189 +++++++++++++++ drivers/gpu/drm/ipk/dw-ipk.h | 30 +++ drivers/gpu/drm/ipk/dw-vpg.c | 559 +++++++++++++++++++++++++++++++++++++++++++ drivers/gpu/drm/ipk/dw-vpg.h | 55 +++++ 8 files changed, 855 insertions(+) create mode 100644 drivers/gpu/drm/ipk/Kconfig create mode 100644 drivers/gpu/drm/ipk/Makefile create mode 100644 drivers/gpu/drm/ipk/dw-drv.c create mode 100644 drivers/gpu/drm/ipk/dw-ipk.h create mode 100644 drivers/gpu/drm/ipk/dw-vpg.c create mode 100644 drivers/gpu/drm/ipk/dw-vpg.h diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index 4359497..29ea1d1 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -388,6 +388,8 @@ source "drivers/gpu/drm/mcde/Kconfig" source "drivers/gpu/drm/tidss/Kconfig" +source "drivers/gpu/drm/ipk/Kconfig" + # Keep legacy drivers last menuconfig DRM_LEGACY diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index 183c600..5bcc1c1 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -125,3 +125,4 @@ obj-$(CONFIG_DRM_PANFROST) += panfrost/ obj-$(CONFIG_DRM_ASPEED_GFX) += aspeed/ obj-$(CONFIG_DRM_MCDE) += mcde/ obj-$(CONFIG_DRM_TIDSS) += tidss/ +obj-$(CONFIG_DRM_IPK) += ipk/ diff --git a/drivers/gpu/drm/ipk/Kconfig b/drivers/gpu/drm/ipk/Kconfig new file mode 100644 index 0000000..1f87444 --- /dev/null +++ b/drivers/gpu/drm/ipk/Kconfig @@ -0,0 +1,13 @@ +# SPDX-License-Identifier: GPL-2.0-only +config DRM_IPK + tristate "DRM Support for Synopsys DesignWare IPK DSI" + depends on DRM + select DRM_KMS_HELPER + select DRM_GEM_CMA_HELPER + select DRM_KMS_CMA_HELPER + select DRM_PANEL_BRIDGE + select VIDEOMODE_HELPERS + help + Enable support for the Synopsys DesignWare DRM DSI. + To compile this driver as a module, choose M here: the module + will be called ipk-drm. diff --git a/drivers/gpu/drm/ipk/Makefile b/drivers/gpu/drm/ipk/Makefile new file mode 100644 index 0000000..51d2774 --- /dev/null +++ b/drivers/gpu/drm/ipk/Makefile @@ -0,0 +1,6 @@ +# SPDX-License-Identifier: GPL-2.0-only +ipk-drm-y := \ + dw-drv.o \ + dw-vpg.o + +obj-$(CONFIG_DRM_IPK) += ipk-drm.o diff --git a/drivers/gpu/drm/ipk/dw-drv.c b/drivers/gpu/drm/ipk/dw-drv.c new file mode 100644 index 0000000..6205f1c --- /dev/null +++ b/drivers/gpu/drm/ipk/dw-drv.c @@ -0,0 +1,189 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2019-2020 Synopsys, Inc. and/or its affiliates. + * Synopsys DesignWare MIPI DSI DRM driver + * + * Author: Angelo Ribeiro + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "dw-ipk.h" +#include "dw-vpg.h" + +static const struct drm_mode_config_funcs dw_ipk_drm_modecfg_funcs = { + .fb_create = drm_gem_fb_create_with_dirty, + .atomic_check = drm_atomic_helper_check, + .atomic_commit = drm_atomic_helper_commit, +}; + +static int dw_ipk_load(struct drm_device *drm) +{ + int ret; + + drm_mode_config_init(drm); + + drm->mode_config.min_width = 0; + drm->mode_config.min_height = 0; + + /* To handle orientation */ + drm->mode_config.max_width = 2048; + drm->mode_config.max_height = 2048; + + drm->mode_config.funcs = &dw_ipk_drm_modecfg_funcs; + + /* TODO + * Optional framebuffer memory resources allocation + */ + + ret = vpg_load(drm); + if (ret) + return ret; + + /* Calls all the crtc's, encoder's and connector's reset */ + drm_mode_config_reset(drm); + + /* Initialize and enable output polling */ + drm_kms_helper_poll_init(drm); + + return ret; +} + +static void dw_ipk_unload(struct drm_device *drm) +{ + DRM_DEBUG_DRIVER("\n"); + + drm_kms_helper_poll_fini(drm); + vpg_unload(drm); +} + +DEFINE_DRM_GEM_CMA_FOPS(ipk_drm_driver_fops); + +static int ipk_gem_cma_dumb_create(struct drm_file *file, + struct drm_device *dev, + struct drm_mode_create_dumb *args) +{ + unsigned int min_pitch = DIV_ROUND_UP(args->width * args->bpp, 8); + int err; + + /* + * In order to optimize data transfer, pitch is aligned on + * 128 bytes, height is aligned on 4 bytes + */ + args->pitch = roundup(min_pitch, 128); + args->height = roundup(args->height, 4); + + err = drm_gem_cma_dumb_create_internal(file, dev, args); + if (err < 0) + drm_err(dev, "dumb_create failed %d\n", err); + + return err; +} + +static struct drm_driver dw_ipk_drm_driver = { + .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC, + .name = "dw_ipk", + .desc = "DW IPK DSI Host Controller", + .date = "20190725", + .major = 1, + .minor = 0, + .patchlevel = 0, + .fops = &ipk_drm_driver_fops, + .dumb_create = ipk_gem_cma_dumb_create, + .prime_handle_to_fd = drm_gem_prime_handle_to_fd, + .prime_fd_to_handle = drm_gem_prime_fd_to_handle, + .gem_free_object_unlocked = drm_gem_cma_free_object, + .gem_vm_ops = &drm_gem_cma_vm_ops, + .gem_prime_export = drm_gem_prime_export, + .gem_prime_import = drm_gem_prime_import, + .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table, + .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table, + .gem_prime_vmap = drm_gem_cma_prime_vmap, + .gem_prime_vunmap = drm_gem_cma_prime_vunmap, + .gem_prime_mmap = drm_gem_cma_prime_mmap, +}; + +static int dw_ipk_drm_platform_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct drm_device *drm; + struct ipk_device *ipk; + int ret; + + DRM_DEBUG_DRIVER("\n"); + + ipk = kzalloc(sizeof(*ipk), GFP_KERNEL); + if (!ipk) + return -ENOMEM; + + ipk->platform = pdev; + drm = &ipk->drm; + + ret = drm_dev_init(&ipk->drm, &dw_ipk_drm_driver, dev); + if (ret) { + kfree(ipk); + return ret; + } + + platform_set_drvdata(pdev, drm); + + ret = dw_ipk_load(drm); + if (ret) + goto err_put; + + ret = drm_dev_register(drm, 0); + if (ret) + goto err_put; + + drm_fbdev_generic_setup(drm, 24); + + return ret; + +err_put: + drm_dev_put(drm); + return ret; +} + +static int dw_ipk_drm_platform_remove(struct platform_device *pdev) +{ + struct drm_device *drm = platform_get_drvdata(pdev); + + drm_dev_unregister(drm); + dw_ipk_unload(drm); + drm_dev_put(drm); + + return 0; +} + +static const struct of_device_id dw_ipk_dt_ids[] = { + {.compatible = "snps,dw-ipk-vpg"}, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, dw_ipk_dt_ids); + +static struct platform_driver dw_ipk_drm_platform_driver = { + .probe = dw_ipk_drm_platform_probe, + .remove = dw_ipk_drm_platform_remove, + .driver = { + .name = "dw-ipk-drm", + .of_match_table = dw_ipk_dt_ids, + }, +}; + +module_platform_driver(dw_ipk_drm_platform_driver); + +MODULE_DESCRIPTION("Synopsys DesignWare IPK DRM driver"); +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Angelo Ribeiro "); diff --git a/drivers/gpu/drm/ipk/dw-ipk.h b/drivers/gpu/drm/ipk/dw-ipk.h new file mode 100644 index 0000000..4abb6dd --- /dev/null +++ b/drivers/gpu/drm/ipk/dw-ipk.h @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2019-2020 Synopsys, Inc. and/or its affiliates. + * Synopsys DesignWare MIPI DSI Controller + */ + +#ifndef _DW_IPK_H +#define _DW_IPK_H + +#include "drm/drm_device.h" +#include + +struct ipk_pipeline { + struct drm_framebuffer *fb; + struct drm_crtc crtc; + struct drm_plane *plane; + struct drm_bridge *bridge; +}; + +struct ipk_device { + struct drm_device drm; + struct platform_device *platform; + struct ipk_pipeline pipeline; + struct vpg_device *vpg; +}; + +#define drm_device_to_ipk_device(target) \ + container_of(target, struct ipk_device, drm) + +#endif /* _DW_IPK_H */ diff --git a/drivers/gpu/drm/ipk/dw-vpg.c b/drivers/gpu/drm/ipk/dw-vpg.c new file mode 100644 index 0000000..feb3e90 --- /dev/null +++ b/drivers/gpu/drm/ipk/dw-vpg.c @@ -0,0 +1,559 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2019-2020 Synopsys, Inc. and/or its affiliates. + * Synopsys DesignWare MIPI DSI controller + * + * Author: Angelo Ribeiro + * Author: Luis Oliveira + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include