linux/drivers/gpu/drm/tve200/tve200_drv.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2017 Linus Walleij <[email protected]>
 * Parts of this file were based on sources as follows:
 *
 * Copyright (C) 2006-2008 Intel Corporation
 * Copyright (C) 2007 Amos Lee <[email protected]>
 * Copyright (C) 2007 Dave Airlie <[email protected]>
 * Copyright (C) 2011 Texas Instruments
 * Copyright (C) 2017 Eric Anholt
 */

/**
 * DOC: Faraday TV Encoder TVE200 DRM Driver
 *
 * The Faraday TV Encoder TVE200 is also known as the Gemini TV Interface
 * Controller (TVC) and is found in the Gemini Chipset from Storlink
 * Semiconductor (later Storm Semiconductor, later Cortina Systems)
 * but also in the Grain Media GM8180 chipset. On the Gemini the module
 * is connected to 8 data lines and a single clock line, comprising an
 * 8-bit BT.656 interface.
 *
 * This is a very basic YUV display driver. The datasheet specifies that
 * it supports the ITU BT.656 standard. It requires a 27 MHz clock which is
 * the hallmark of any TV encoder supporting both PAL and NTSC.
 *
 * This driver exposes a standard KMS interface for this TV encoder.
 */

#include <linux/clk.h>
#include <linux/dma-buf.h>
#include <linux/irq.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/shmem_fs.h>
#include <linux/slab.h>

#include <drm/drm_atomic_helper.h>
#include <drm/drm_bridge.h>
#include <drm/drm_drv.h>
#include <drm/drm_fbdev_dma.h>
#include <drm/drm_gem_dma_helper.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_module.h>
#include <drm/drm_of.h>
#include <drm/drm_panel.h>
#include <drm/drm_probe_helper.h>
#include <drm/drm_vblank.h>

#include "tve200_drm.h"

#define DRIVER_DESC …

static const struct drm_mode_config_funcs mode_config_funcs = …;

static int tve200_modeset_init(struct drm_device *dev)
{ … }

DEFINE_DRM_GEM_DMA_FOPS(drm_fops);

static const struct drm_driver tve200_drm_driver = …;

static int tve200_probe(struct platform_device *pdev)
{ … }

static void tve200_remove(struct platform_device *pdev)
{ … }

static void tve200_shutdown(struct platform_device *pdev)
{ … }

static const struct of_device_id tve200_of_match[] = …;

static struct platform_driver tve200_driver = …;
drm_module_platform_driver(…);

MODULE_DESCRIPTION(…);
MODULE_AUTHOR(…) …;
MODULE_LICENSE(…) …;