summaryrefslogtreecommitdiff
path: root/arch/arm/mach-sa1100/h3600.c
blob: 1cfc0b1fa41ca4648dbf41846654bc56d5f77e59 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
// SPDX-License-Identifier: GPL-2.0-only
/*
 * Support for Compaq iPAQ H3600 handheld computer
 *
 * Copyright (c) 2000,1 Compaq Computer Corporation. (Author: Jamey Hicks)
 * Copyright (c) 2009 Dmitry Artamonow <mad_soft@inbox.ru>
 */

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/gpio.h>

#include <video/sa1100fb.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>

#include <mach/h3xxx.h>
#include <mach/irqs.h>

#include "generic.h"

static bool h3600_lcd_request(void)
{
	static bool h3600_lcd_ok;
	int rc;

	if (h3600_lcd_ok)
		return true;

	rc = gpio_request(H3XXX_EGPIO_LCD_ON, "LCD power");
	if (rc)
		goto out;
	rc = gpio_direction_output(H3XXX_EGPIO_LCD_ON, 0);
	if (rc)
		goto out_free_on;
	rc = gpio_request(H3600_EGPIO_LCD_PCI, "LCD control");
	if (rc)
		goto out_free_on;
	rc = gpio_direction_output(H3600_EGPIO_LCD_PCI, 0);
	if (rc)
		goto out_free_pci;
	rc = gpio_request(H3600_EGPIO_LCD_5V_ON, "LCD 5v");
	if (rc)
		goto out_free_pci;
	rc = gpio_direction_output(H3600_EGPIO_LCD_5V_ON, 0);
	if (rc)
		goto out_free_5v_on;
	rc = gpio_request(H3600_EGPIO_LVDD_ON, "LCD 9v/-6.5v");
	if (rc)
		goto out_free_5v_on;
	rc = gpio_direction_output(H3600_EGPIO_LVDD_ON, 0);
	if (rc)
		goto out_free_lvdd_on;

	goto out;

out_free_lvdd_on:
	gpio_free(H3600_EGPIO_LVDD_ON);
out_free_5v_on:
	gpio_free(H3600_EGPIO_LCD_5V_ON);
out_free_pci:
	gpio_free(H3600_EGPIO_LCD_PCI);
out_free_on:
	gpio_free(H3XXX_EGPIO_LCD_ON);
out:
	if (rc)
		pr_err("%s: can't request GPIOs\n", __func__);
	else
		h3600_lcd_ok = true;

	return h3600_lcd_ok;
}

static void h3600_lcd_power(int enable)
{
	if (!h3600_lcd_request())
		return;

	gpio_direction_output(H3XXX_EGPIO_LCD_ON, enable);
	gpio_direction_output(H3600_EGPIO_LCD_PCI, enable);
	gpio_direction_output(H3600_EGPIO_LCD_5V_ON, enable);
	gpio_direction_output(H3600_EGPIO_LVDD_ON, enable);
}

static const struct sa1100fb_rgb h3600_rgb_16 = {
	.red	= { .offset = 12, .length = 4, },
	.green	= { .offset = 7,  .length = 4, },
	.blue	= { .offset = 1,  .length = 4, },
	.transp	= { .offset = 0,  .length = 0, },
};

static struct sa1100fb_mach_info h3600_lcd_info = {
	.pixclock	= 174757, 	.bpp		= 16,
	.xres		= 320,		.yres		= 240,

	.hsync_len	= 3,		.vsync_len	= 3,
	.left_margin	= 12,		.upper_margin	= 10,
	.right_margin	= 17,		.lower_margin	= 1,

	.cmap_static	= 1,

	.lccr0		= LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
	.lccr3		= LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),

	.rgb[RGB_16] = &h3600_rgb_16,

	.lcd_power = h3600_lcd_power,
};


static void __init h3600_map_io(void)
{
	h3xxx_map_io();
}

static void __init h3600_mach_init(void)
{
	h3xxx_mach_init();

	sa11x0_register_lcd(&h3600_lcd_info);
}

MACHINE_START(H3600, "Compaq iPAQ H3600")
	.atag_offset	= 0x100,
	.map_io		= h3600_map_io,
	.nr_irqs	= SA1100_NR_IRQS,
	.init_irq	= sa1100_init_irq,
	.init_time	= sa1100_timer_init,
	.init_machine	= h3600_mach_init,
	.init_late	= sa11x0_init_late,
	.restart	= sa11x0_restart,
MACHINE_END