1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Support for Compaq iPAQ H3100 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 h3100_lcd_gpio[] = {
28	{ H3100_GPIO_LCD_3V_ON, GPIOF_OUT_INIT_LOW, "LCD 3V" },
29	{ H3XXX_EGPIO_LCD_ON, GPIOF_OUT_INIT_LOW, "LCD ON" },
30};
31
32static bool h3100_lcd_request(void)
33{
34	static bool h3100_lcd_ok;
35	int rc;
36
37	if (h3100_lcd_ok)
38		return true;
39
40	rc = gpio_request_array(h3100_lcd_gpio, ARRAY_SIZE(h3100_lcd_gpio));
41	if (rc)
42		pr_err("%s: can't request GPIOs\n", __func__);
43	else
44		h3100_lcd_ok = true;
45
46	return h3100_lcd_ok;
47}
48
49static void h3100_lcd_power(int enable)
50{
51	if (!h3100_lcd_request())
52		return;
53
54	gpio_set_value(H3100_GPIO_LCD_3V_ON, enable);
55	gpio_set_value(H3XXX_EGPIO_LCD_ON, enable);
56}
57
58static struct sa1100fb_mach_info h3100_lcd_info = {
59	.pixclock	= 406977, 	.bpp		= 4,
60	.xres		= 320,		.yres		= 240,
61
62	.hsync_len	= 26,		.vsync_len	= 41,
63	.left_margin	= 4,		.upper_margin	= 0,
64	.right_margin	= 4,		.lower_margin	= 0,
65
66	.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
67	.cmap_greyscale	= 1,
68	.cmap_inverse	= 1,
69
70	.lccr0		= LCCR0_Mono | LCCR0_4PixMono | LCCR0_Sngl | LCCR0_Pas,
71	.lccr3		= LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),
72
73	.lcd_power = h3100_lcd_power,
74};
75
76static void __init h3100_map_io(void)
77{
78	h3xxx_map_io();
79
80	/* Older bootldrs put GPIO2-9 in alternate mode on the
81	   assumption that they are used for video */
82	GAFR &= ~0x000001fb;
83}
84
85/*
86 * This turns the IRDA power on or off on the Compaq H3100
87 */
88static struct gpio h3100_irda_gpio[] = {
89	{ H3100_GPIO_IR_ON,	GPIOF_OUT_INIT_LOW, "IrDA power" },
90	{ H3100_GPIO_IR_FSEL,	GPIOF_OUT_INIT_LOW, "IrDA fsel" },
91};
92
93static int h3100_irda_set_power(struct device *dev, unsigned int state)
94{
95	gpio_set_value(H3100_GPIO_IR_ON, state);
96	return 0;
97}
98
99static void h3100_irda_set_speed(struct device *dev, unsigned int speed)
100{
101	gpio_set_value(H3100_GPIO_IR_FSEL, !(speed < 4000000));
102}
103
104static int h3100_irda_startup(struct device *dev)
105{
106	return gpio_request_array(h3100_irda_gpio, sizeof(h3100_irda_gpio));
107}
108
109static void h3100_irda_shutdown(struct device *dev)
110{
111	return gpio_free_array(h3100_irda_gpio, sizeof(h3100_irda_gpio));
112}
113
114static struct irda_platform_data h3100_irda_data = {
115	.set_power	= h3100_irda_set_power,
116	.set_speed	= h3100_irda_set_speed,
117	.startup	= h3100_irda_startup,
118	.shutdown	= h3100_irda_shutdown,
119};
120
121static void __init h3100_mach_init(void)
122{
123	h3xxx_mach_init();
124
125	sa11x0_register_pcmcia(-1, NULL);
126	sa11x0_register_lcd(&h3100_lcd_info);
127	sa11x0_register_irda(&h3100_irda_data);
128}
129
130MACHINE_START(H3100, "Compaq iPAQ H3100")
131	.atag_offset	= 0x100,
132	.map_io		= h3100_map_io,
133	.nr_irqs	= SA1100_NR_IRQS,
134	.init_irq	= sa1100_init_irq,
135	.init_time	= sa1100_timer_init,
136	.init_machine	= h3100_mach_init,
137	.init_late	= sa11x0_init_late,
138	.restart	= sa11x0_restart,
139MACHINE_END
140
141