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