// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Framebuffer device registration for TI OMAP platforms
 *
 * Copyright (C) 2006 Nokia Corporation
 * Author: Imre Deak <imre.deak@nokia.com>
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/memblock.h>
#include <linux/io.h>
#include <linux/omapfb.h>
#include <linux/dma-mapping.h>

#include <asm/mach/map.h>

#include "soc.h"
#include "display.h"

#ifdef CONFIG_OMAP2_VRFB

/*
 * The first memory resource is the register region for VRFB,
 * the rest are VRFB virtual memory areas for each VRFB context.
 */

static const struct resource omap2_vrfb_resources[] = {
        DEFINE_RES_MEM_NAMED(0x68008000u, 0x40, "vrfb-regs"),
        DEFINE_RES_MEM_NAMED(0x70000000u, 0x4000000, "vrfb-area-0"),
        DEFINE_RES_MEM_NAMED(0x74000000u, 0x4000000, "vrfb-area-1"),
        DEFINE_RES_MEM_NAMED(0x78000000u, 0x4000000, "vrfb-area-2"),
        DEFINE_RES_MEM_NAMED(0x7c000000u, 0x4000000, "vrfb-area-3"),
};

static const struct resource omap3_vrfb_resources[] = {
        DEFINE_RES_MEM_NAMED(0x6C000180u, 0xc0, "vrfb-regs"),
        DEFINE_RES_MEM_NAMED(0x70000000u, 0x4000000, "vrfb-area-0"),
        DEFINE_RES_MEM_NAMED(0x74000000u, 0x4000000, "vrfb-area-1"),
        DEFINE_RES_MEM_NAMED(0x78000000u, 0x4000000, "vrfb-area-2"),
        DEFINE_RES_MEM_NAMED(0x7c000000u, 0x4000000, "vrfb-area-3"),
        DEFINE_RES_MEM_NAMED(0xe0000000u, 0x4000000, "vrfb-area-4"),
        DEFINE_RES_MEM_NAMED(0xe4000000u, 0x4000000, "vrfb-area-5"),
        DEFINE_RES_MEM_NAMED(0xe8000000u, 0x4000000, "vrfb-area-6"),
        DEFINE_RES_MEM_NAMED(0xec000000u, 0x4000000, "vrfb-area-7"),
        DEFINE_RES_MEM_NAMED(0xf0000000u, 0x4000000, "vrfb-area-8"),
        DEFINE_RES_MEM_NAMED(0xf4000000u, 0x4000000, "vrfb-area-9"),
        DEFINE_RES_MEM_NAMED(0xf8000000u, 0x4000000, "vrfb-area-10"),
        DEFINE_RES_MEM_NAMED(0xfc000000u, 0x4000000, "vrfb-area-11"),
};

int __init omap_init_vrfb(void)
{
        struct platform_device *pdev;
        const struct resource *res;
        unsigned int num_res;

        if (cpu_is_omap24xx()) {
                res = omap2_vrfb_resources;
                num_res = ARRAY_SIZE(omap2_vrfb_resources);
        } else if (cpu_is_omap34xx()) {
                res = omap3_vrfb_resources;
                num_res = ARRAY_SIZE(omap3_vrfb_resources);
        } else {
                return 0;
        }

        pdev = platform_device_register_resndata(NULL, "omapvrfb", -1,
                        res, num_res, NULL, 0);

        return PTR_ERR_OR_ZERO(pdev);
}
#else
int __init omap_init_vrfb(void) { return 0; }
#endif

#if IS_ENABLED(CONFIG_FB_OMAP2)

static u64 omap_fb_dma_mask = ~(u32)0;
static struct omapfb_platform_data omapfb_config;

static struct platform_device omap_fb_device = {
        .name           = "omapfb",
        .id             = -1,
        .dev = {
                .dma_mask               = &omap_fb_dma_mask,
                .coherent_dma_mask      = DMA_BIT_MASK(32),
                .platform_data          = &omapfb_config,
        },
        .num_resources = 0,
};

int __init omap_init_fb(void)
{
        return platform_device_register(&omap_fb_device);
}
#else
int __init omap_init_fb(void) { return 0; }
#endif