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 */
26static 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
33static 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
50static void h3600_lcd_power(int enable)
51{
52	if (!h3600_lcd_request())
53		return;
54
55	gpio_direction_output(H3XXX_EGPIO_LCD_ON, enable);
56	gpio_direction_output(H3600_EGPIO_LCD_PCI, enable);
57	gpio_direction_output(H3600_EGPIO_LCD_5V_ON, enable);
58	gpio_direction_output(H3600_EGPIO_LVDD_ON, enable);
59}
60
61static 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
68static 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
87static void __init h3600_map_io(void)
88{
89	h3xxx_map_io();
90}
91
92static void __init h3600_mach_init(void)
93{
94	h3xxx_mach_init();
95
96	sa11x0_register_lcd(&h3600_lcd_info);
97}
98
99MACHINE_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,
108MACHINE_END
109
110