GNU Linux-libre 4.19.314-gnu1
[releases.git] / arch / arm / mach-sa1100 / h3600.c
1 /*
2  * Support for Compaq iPAQ H3600 handheld computer
3  *
4  * Copyright (c) 2000,1 Compaq Computer Corporation. (Author: Jamey Hicks)
5  * Copyright (c) 2009 Dmitry Artamonow <mad_soft@inbox.ru>
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License version 2 as
9  * published by the Free Software Foundation.
10  *
11  */
12
13 #include <linux/init.h>
14 #include <linux/kernel.h>
15 #include <linux/gpio.h>
16
17 #include <video/sa1100fb.h>
18
19 #include <asm/mach-types.h>
20 #include <asm/mach/arch.h>
21 #include <linux/platform_data/irda-sa11x0.h>
22
23 #include <mach/h3xxx.h>
24 #include <mach/irqs.h>
25
26 #include "generic.h"
27
28 /*
29  * helper for sa1100fb
30  */
31 static struct gpio h3600_lcd_gpio[] = {
32         { H3XXX_EGPIO_LCD_ON,   GPIOF_OUT_INIT_LOW,     "LCD power" },
33         { H3600_EGPIO_LCD_PCI,  GPIOF_OUT_INIT_LOW,     "LCD control" },
34         { H3600_EGPIO_LCD_5V_ON, GPIOF_OUT_INIT_LOW,    "LCD 5v" },
35         { H3600_EGPIO_LVDD_ON,  GPIOF_OUT_INIT_LOW,     "LCD 9v/-6.5v" },
36 };
37
38 static bool h3600_lcd_request(void)
39 {
40         static bool h3600_lcd_ok;
41         int rc;
42
43         if (h3600_lcd_ok)
44                 return true;
45
46         rc = gpio_request_array(h3600_lcd_gpio, ARRAY_SIZE(h3600_lcd_gpio));
47         if (rc)
48                 pr_err("%s: can't request GPIOs\n", __func__);
49         else
50                 h3600_lcd_ok = true;
51
52         return h3600_lcd_ok;
53 }
54
55 static void h3600_lcd_power(int enable)
56 {
57         if (!h3600_lcd_request())
58                 return;
59
60         gpio_direction_output(H3XXX_EGPIO_LCD_ON, enable);
61         gpio_direction_output(H3600_EGPIO_LCD_PCI, enable);
62         gpio_direction_output(H3600_EGPIO_LCD_5V_ON, enable);
63         gpio_direction_output(H3600_EGPIO_LVDD_ON, enable);
64 }
65
66 static const struct sa1100fb_rgb h3600_rgb_16 = {
67         .red    = { .offset = 12, .length = 4, },
68         .green  = { .offset = 7,  .length = 4, },
69         .blue   = { .offset = 1,  .length = 4, },
70         .transp = { .offset = 0,  .length = 0, },
71 };
72
73 static struct sa1100fb_mach_info h3600_lcd_info = {
74         .pixclock       = 174757,       .bpp            = 16,
75         .xres           = 320,          .yres           = 240,
76
77         .hsync_len      = 3,            .vsync_len      = 3,
78         .left_margin    = 12,           .upper_margin   = 10,
79         .right_margin   = 17,           .lower_margin   = 1,
80
81         .cmap_static    = 1,
82
83         .lccr0          = LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
84         .lccr3          = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),
85
86         .rgb[RGB_16] = &h3600_rgb_16,
87
88         .lcd_power = h3600_lcd_power,
89 };
90
91
92 static void __init h3600_map_io(void)
93 {
94         h3xxx_map_io();
95 }
96
97 /*
98  * This turns the IRDA power on or off on the Compaq H3600
99  */
100 static struct gpio h3600_irda_gpio[] = {
101         { H3600_EGPIO_IR_ON,    GPIOF_OUT_INIT_LOW, "IrDA power" },
102         { H3600_EGPIO_IR_FSEL,  GPIOF_OUT_INIT_LOW, "IrDA fsel" },
103 };
104
105 static int h3600_irda_set_power(struct device *dev, unsigned int state)
106 {
107         gpio_set_value(H3600_EGPIO_IR_ON, state);
108         return 0;
109 }
110
111 static void h3600_irda_set_speed(struct device *dev, unsigned int speed)
112 {
113         gpio_set_value(H3600_EGPIO_IR_FSEL, !(speed < 4000000));
114 }
115
116 static int h3600_irda_startup(struct device *dev)
117 {
118         return gpio_request_array(h3600_irda_gpio, sizeof(h3600_irda_gpio));
119 }
120
121 static void h3600_irda_shutdown(struct device *dev)
122 {
123         return gpio_free_array(h3600_irda_gpio, sizeof(h3600_irda_gpio));
124 }
125
126 static struct irda_platform_data h3600_irda_data = {
127         .set_power      = h3600_irda_set_power,
128         .set_speed      = h3600_irda_set_speed,
129         .startup        = h3600_irda_startup,
130         .shutdown       = h3600_irda_shutdown,
131 };
132
133 static void __init h3600_mach_init(void)
134 {
135         h3xxx_mach_init();
136
137         sa11x0_register_lcd(&h3600_lcd_info);
138         sa11x0_register_irda(&h3600_irda_data);
139 }
140
141 MACHINE_START(H3600, "Compaq iPAQ H3600")
142         .atag_offset    = 0x100,
143         .map_io         = h3600_map_io,
144         .nr_irqs        = SA1100_NR_IRQS,
145         .init_irq       = sa1100_init_irq,
146         .init_time      = sa1100_timer_init,
147         .init_machine   = h3600_mach_init,
148         .init_late      = sa11x0_init_late,
149         .restart        = sa11x0_restart,
150 MACHINE_END
151