linux/drivers/soc/amlogic/meson-canvas.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2018 BayLibre, SAS
 * Copyright (C) 2015 Amlogic, Inc. All rights reserved.
 * Copyright (C) 2014 Endless Mobile
 */

#include <linux/kernel.h>
#include <linux/mfd/syscon.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/soc/amlogic/meson-canvas.h>
#include <linux/of_address.h>
#include <linux/of_platform.h>
#include <linux/io.h>

#define NUM_CANVAS …

/* DMC Registers */
#define DMC_CAV_LUT_DATAL …
	#define CANVAS_WIDTH_LBIT …
	#define CANVAS_WIDTH_LWID …
#define DMC_CAV_LUT_DATAH …
	#define CANVAS_WIDTH_HBIT …
	#define CANVAS_HEIGHT_BIT …
	#define CANVAS_WRAP_BIT …
	#define CANVAS_BLKMODE_BIT …
	#define CANVAS_ENDIAN_BIT …
#define DMC_CAV_LUT_ADDR …
	#define CANVAS_LUT_WR_EN …
	#define CANVAS_LUT_RD_EN …

struct meson_canvas { … };

static void canvas_write(struct meson_canvas *canvas, u32 reg, u32 val)
{ … }

static u32 canvas_read(struct meson_canvas *canvas, u32 reg)
{ … }

struct meson_canvas *meson_canvas_get(struct device *dev)
{ … }
EXPORT_SYMBOL_GPL(…);

int meson_canvas_config(struct meson_canvas *canvas, u8 canvas_index,
			u32 addr, u32 stride, u32 height,
			unsigned int wrap,
			unsigned int blkmode,
			unsigned int endian)
{ … }
EXPORT_SYMBOL_GPL(…);

int meson_canvas_alloc(struct meson_canvas *canvas, u8 *canvas_index)
{ … }
EXPORT_SYMBOL_GPL(…);

int meson_canvas_free(struct meson_canvas *canvas, u8 canvas_index)
{ … }
EXPORT_SYMBOL_GPL(…);

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

static const struct of_device_id canvas_dt_match[] = …;
MODULE_DEVICE_TABLE(of, canvas_dt_match);

static struct platform_driver meson_canvas_driver = …;
module_platform_driver(…) …;

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