1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * File: arch/arm/plat-omap/fb.c
4 *
5 * Framebuffer device registration for TI OMAP platforms
6 *
7 * Copyright (C) 2006 Nokia Corporation
8 * Author: Imre Deak <imre.deak@nokia.com>
9 */
10
11#include <linux/module.h>
12#include <linux/kernel.h>
13#include <linux/mm.h>
14#include <linux/init.h>
15#include <linux/platform_device.h>
16#include <linux/memblock.h>
17#include <linux/io.h>
18#include <linux/omapfb.h>
19#include <linux/dma-mapping.h>
20#include <linux/irq.h>
21
22#include <asm/mach/map.h>
23
24#include "irqs.h"
25
26#if IS_ENABLED(CONFIG_FB_OMAP)
27
28static bool omapfb_lcd_configured;
29static struct omapfb_platform_data omapfb_config;
30
31static u64 omap_fb_dma_mask = ~(u32)0;
32
33static struct resource omap_fb_resources[] = {
34 {
35 .name = "irq",
36 .start = INT_LCD_CTRL,
37 .flags = IORESOURCE_IRQ,
38 },
39 {
40 .name = "irq",
41 .start = INT_SOSSI_MATCH,
42 .flags = IORESOURCE_IRQ,
43 },
44};
45
46static struct platform_device omap_fb_device = {
47 .name = "omapfb",
48 .id = -1,
49 .dev = {
50 .dma_mask = &omap_fb_dma_mask,
51 .coherent_dma_mask = DMA_BIT_MASK(32),
52 .platform_data = &omapfb_config,
53 },
54 .num_resources = ARRAY_SIZE(omap_fb_resources),
55 .resource = omap_fb_resources,
56};
57
58void __init omapfb_set_lcd_config(const struct omap_lcd_config *config)
59{
60 omapfb_config.lcd = *config;
61 omapfb_lcd_configured = true;
62}
63
64static int __init omap_init_fb(void)
65{
66 /*
67 * If the board file has not set the lcd config with
68 * omapfb_set_lcd_config(), don't bother registering the omapfb device
69 */
70 if (!omapfb_lcd_configured)
71 return 0;
72
73 return platform_device_register(&omap_fb_device);
74}
75
76arch_initcall(omap_init_fb);
77
78#else
79
80void __init omapfb_set_lcd_config(const struct omap_lcd_config *config)
81{
82}
83
84#endif
85

source code of linux/arch/arm/mach-omap1/fb.c