1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * Support for Compaq iPAQ H3600 handheld computer |
4 | * |
5 | * Copyright (c) 2000,1 Compaq Computer Corporation. (Author: Jamey Hicks) |
6 | * Copyright (c) 2009 Dmitry Artamonow <mad_soft@inbox.ru> |
7 | */ |
8 | |
9 | #include <linux/init.h> |
10 | #include <linux/kernel.h> |
11 | #include <linux/gpio.h> |
12 | |
13 | #include <video/sa1100fb.h> |
14 | |
15 | #include <asm/mach-types.h> |
16 | #include <asm/mach/arch.h> |
17 | |
18 | #include <mach/h3xxx.h> |
19 | #include <mach/irqs.h> |
20 | |
21 | #include "generic.h" |
22 | |
23 | /* |
24 | * helper for sa1100fb |
25 | */ |
26 | static struct gpio h3600_lcd_gpio[] = { |
27 | { H3XXX_EGPIO_LCD_ON, GPIOF_OUT_INIT_LOW, "LCD power" }, |
28 | { H3600_EGPIO_LCD_PCI, GPIOF_OUT_INIT_LOW, "LCD control" }, |
29 | { H3600_EGPIO_LCD_5V_ON, GPIOF_OUT_INIT_LOW, "LCD 5v" }, |
30 | { H3600_EGPIO_LVDD_ON, GPIOF_OUT_INIT_LOW, "LCD 9v/-6.5v" }, |
31 | }; |
32 | |
33 | static bool h3600_lcd_request(void) |
34 | { |
35 | static bool h3600_lcd_ok; |
36 | int rc; |
37 | |
38 | if (h3600_lcd_ok) |
39 | return true; |
40 | |
41 | rc = gpio_request_array(h3600_lcd_gpio, ARRAY_SIZE(h3600_lcd_gpio)); |
42 | if (rc) |
43 | pr_err("%s: can't request GPIOs\n" , __func__); |
44 | else |
45 | h3600_lcd_ok = true; |
46 | |
47 | return h3600_lcd_ok; |
48 | } |
49 | |
50 | static void h3600_lcd_power(int enable) |
51 | { |
52 | if (!h3600_lcd_request()) |
53 | return; |
54 | |
55 | gpio_direction_output(gpio: H3XXX_EGPIO_LCD_ON, value: enable); |
56 | gpio_direction_output(gpio: H3600_EGPIO_LCD_PCI, value: enable); |
57 | gpio_direction_output(gpio: H3600_EGPIO_LCD_5V_ON, value: enable); |
58 | gpio_direction_output(gpio: H3600_EGPIO_LVDD_ON, value: enable); |
59 | } |
60 | |
61 | static const struct sa1100fb_rgb h3600_rgb_16 = { |
62 | .red = { .offset = 12, .length = 4, }, |
63 | .green = { .offset = 7, .length = 4, }, |
64 | .blue = { .offset = 1, .length = 4, }, |
65 | .transp = { .offset = 0, .length = 0, }, |
66 | }; |
67 | |
68 | static struct sa1100fb_mach_info h3600_lcd_info = { |
69 | .pixclock = 174757, .bpp = 16, |
70 | .xres = 320, .yres = 240, |
71 | |
72 | .hsync_len = 3, .vsync_len = 3, |
73 | .left_margin = 12, .upper_margin = 10, |
74 | .right_margin = 17, .lower_margin = 1, |
75 | |
76 | .cmap_static = 1, |
77 | |
78 | .lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act, |
79 | .lccr3 = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2), |
80 | |
81 | .rgb[RGB_16] = &h3600_rgb_16, |
82 | |
83 | .lcd_power = h3600_lcd_power, |
84 | }; |
85 | |
86 | |
87 | static void __init h3600_map_io(void) |
88 | { |
89 | h3xxx_map_io(); |
90 | } |
91 | |
92 | static void __init h3600_mach_init(void) |
93 | { |
94 | h3xxx_mach_init(); |
95 | |
96 | sa11x0_register_lcd(inf: &h3600_lcd_info); |
97 | } |
98 | |
99 | MACHINE_START(H3600, "Compaq iPAQ H3600" ) |
100 | .atag_offset = 0x100, |
101 | .map_io = h3600_map_io, |
102 | .nr_irqs = SA1100_NR_IRQS, |
103 | .init_irq = sa1100_init_irq, |
104 | .init_time = sa1100_timer_init, |
105 | .init_machine = h3600_mach_init, |
106 | .init_late = sa11x0_init_late, |
107 | .restart = sa11x0_restart, |
108 | MACHINE_END |
109 | |
110 | |