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 | |
28 | static bool omapfb_lcd_configured; |
29 | static struct omapfb_platform_data omapfb_config; |
30 | |
31 | static u64 omap_fb_dma_mask = ~(u32)0; |
32 | |
33 | static 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 | |
46 | static 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 | |
58 | void __init omapfb_set_lcd_config(const struct omap_lcd_config *config) |
59 | { |
60 | omapfb_config.lcd = *config; |
61 | omapfb_lcd_configured = true; |
62 | } |
63 | |
64 | static 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 | |
76 | arch_initcall(omap_init_fb); |
77 | |
78 | #else |
79 | |
80 | void __init omapfb_set_lcd_config(const struct omap_lcd_config *config) |
81 | { |
82 | } |
83 | |
84 | #endif |
85 | |