Merge commit 'v2.6.39' into 20110526
[linux-2.6.git] / arch / arm / mach-mx3 / mach-pcm037_eet.c
1 /*
2  * Copyright (C) 2009
3  * Guennadi Liakhovetski, DENX Software Engineering, <lg@denx.de>
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License version 2 as
7  * published by the Free Software Foundation.
8  */
9 #include <linux/gpio.h>
10 #include <linux/gpio_keys.h>
11 #include <linux/input.h>
12 #include <linux/platform_device.h>
13 #include <linux/spi/spi.h>
14
15 #include <mach/common.h>
16 #include <mach/iomux-mx3.h>
17 #include <mach/spi.h>
18
19 #include <asm/mach-types.h>
20
21 #include "pcm037.h"
22 #include "devices.h"
23 #include "devices-imx31.h"
24
25 static unsigned int pcm037_eet_pins[] = {
26         /* Reserve and hardwire GPIO 57 high - S6E63D6 chipselect */
27         IOMUX_MODE(MX31_PIN_KEY_COL7, IOMUX_CONFIG_GPIO),
28         /* GPIO keys */
29         IOMUX_MODE(MX31_PIN_GPIO1_0,    IOMUX_CONFIG_GPIO), /* 0 */
30         IOMUX_MODE(MX31_PIN_GPIO1_1,    IOMUX_CONFIG_GPIO), /* 1 */
31         IOMUX_MODE(MX31_PIN_GPIO1_2,    IOMUX_CONFIG_GPIO), /* 2 */
32         IOMUX_MODE(MX31_PIN_GPIO1_3,    IOMUX_CONFIG_GPIO), /* 3 */
33         IOMUX_MODE(MX31_PIN_SVEN0,      IOMUX_CONFIG_GPIO), /* 32 */
34         IOMUX_MODE(MX31_PIN_STX0,       IOMUX_CONFIG_GPIO), /* 33 */
35         IOMUX_MODE(MX31_PIN_SRX0,       IOMUX_CONFIG_GPIO), /* 34 */
36         IOMUX_MODE(MX31_PIN_SIMPD0,     IOMUX_CONFIG_GPIO), /* 35 */
37         IOMUX_MODE(MX31_PIN_RTS1,       IOMUX_CONFIG_GPIO), /* 38 */
38         IOMUX_MODE(MX31_PIN_CTS1,       IOMUX_CONFIG_GPIO), /* 39 */
39         IOMUX_MODE(MX31_PIN_KEY_ROW4,   IOMUX_CONFIG_GPIO), /* 50 */
40         IOMUX_MODE(MX31_PIN_KEY_ROW5,   IOMUX_CONFIG_GPIO), /* 51 */
41         IOMUX_MODE(MX31_PIN_KEY_ROW6,   IOMUX_CONFIG_GPIO), /* 52 */
42         IOMUX_MODE(MX31_PIN_KEY_ROW7,   IOMUX_CONFIG_GPIO), /* 53 */
43
44         /* LEDs */
45         IOMUX_MODE(MX31_PIN_DTR_DTE1,   IOMUX_CONFIG_GPIO), /* 44 */
46         IOMUX_MODE(MX31_PIN_DSR_DTE1,   IOMUX_CONFIG_GPIO), /* 45 */
47         IOMUX_MODE(MX31_PIN_KEY_COL5,   IOMUX_CONFIG_GPIO), /* 55 */
48         IOMUX_MODE(MX31_PIN_KEY_COL6,   IOMUX_CONFIG_GPIO), /* 56 */
49 };
50
51 /* SPI */
52 static struct spi_board_info pcm037_spi_dev[] = {
53         {
54                 .modalias       = "dac124s085",
55                 .max_speed_hz   = 400000,
56                 .bus_num        = 0,
57                 .chip_select    = 0,            /* Index in pcm037_spi1_cs[] */
58                 .mode           = SPI_CPHA,
59         },
60 };
61
62 /* Platform Data for MXC CSPI */
63 static int pcm037_spi1_cs[] = {MXC_SPI_CS(1), IOMUX_TO_GPIO(MX31_PIN_KEY_COL7)};
64
65 static const struct spi_imx_master pcm037_spi1_pdata __initconst = {
66         .chipselect = pcm037_spi1_cs,
67         .num_chipselect = ARRAY_SIZE(pcm037_spi1_cs),
68 };
69
70 /* GPIO-keys input device */
71 static struct gpio_keys_button pcm037_gpio_keys[] = {
72         {
73                 .type   = EV_KEY,
74                 .code   = KEY_L,
75                 .gpio   = 0,
76                 .desc   = "Wheel Manual",
77                 .wakeup = 0,
78         }, {
79                 .type   = EV_KEY,
80                 .code   = KEY_A,
81                 .gpio   = 1,
82                 .desc   = "Wheel AF",
83                 .wakeup = 0,
84         }, {
85                 .type   = EV_KEY,
86                 .code   = KEY_V,
87                 .gpio   = 2,
88                 .desc   = "Wheel View",
89                 .wakeup = 0,
90         }, {
91                 .type   = EV_KEY,
92                 .code   = KEY_M,
93                 .gpio   = 3,
94                 .desc   = "Wheel Menu",
95                 .wakeup = 0,
96         }, {
97                 .type   = EV_KEY,
98                 .code   = KEY_UP,
99                 .gpio   = 32,
100                 .desc   = "Nav Pad Up",
101                 .wakeup = 0,
102         }, {
103                 .type   = EV_KEY,
104                 .code   = KEY_RIGHT,
105                 .gpio   = 33,
106                 .desc   = "Nav Pad Right",
107                 .wakeup = 0,
108         }, {
109                 .type   = EV_KEY,
110                 .code   = KEY_DOWN,
111                 .gpio   = 34,
112                 .desc   = "Nav Pad Down",
113                 .wakeup = 0,
114         }, {
115                 .type   = EV_KEY,
116                 .code   = KEY_LEFT,
117                 .gpio   = 35,
118                 .desc   = "Nav Pad Left",
119                 .wakeup = 0,
120         }, {
121                 .type   = EV_KEY,
122                 .code   = KEY_ENTER,
123                 .gpio   = 38,
124                 .desc   = "Nav Pad Ok",
125                 .wakeup = 0,
126         }, {
127                 .type   = EV_KEY,
128                 .code   = KEY_O,
129                 .gpio   = 39,
130                 .desc   = "Wheel Off",
131                 .wakeup = 0,
132         }, {
133                 .type   = EV_KEY,
134                 .code   = BTN_FORWARD,
135                 .gpio   = 50,
136                 .desc   = "Focus Forward",
137                 .wakeup = 0,
138         }, {
139                 .type   = EV_KEY,
140                 .code   = BTN_BACK,
141                 .gpio   = 51,
142                 .desc   = "Focus Backward",
143                 .wakeup = 0,
144         }, {
145                 .type   = EV_KEY,
146                 .code   = BTN_MIDDLE,
147                 .gpio   = 52,
148                 .desc   = "Release Half",
149                 .wakeup = 0,
150         }, {
151                 .type   = EV_KEY,
152                 .code   = BTN_EXTRA,
153                 .gpio   = 53,
154                 .desc   = "Release Full",
155                 .wakeup = 0,
156         },
157 };
158
159 static struct gpio_keys_platform_data pcm037_gpio_keys_platform_data = {
160         .buttons        = pcm037_gpio_keys,
161         .nbuttons       = ARRAY_SIZE(pcm037_gpio_keys),
162         .rep            = 0, /* No auto-repeat */
163 };
164
165 static struct platform_device pcm037_gpio_keys_device = {
166         .name   = "gpio-keys",
167         .id     = -1,
168         .dev    = {
169                 .platform_data  = &pcm037_gpio_keys_platform_data,
170         },
171 };
172
173 static int __init eet_init_devices(void)
174 {
175         if (!machine_is_pcm037() || pcm037_variant() != PCM037_EET)
176                 return 0;
177
178         mxc_iomux_setup_multiple_pins(pcm037_eet_pins,
179                                 ARRAY_SIZE(pcm037_eet_pins), "pcm037_eet");
180
181         /* SPI */
182         spi_register_board_info(pcm037_spi_dev, ARRAY_SIZE(pcm037_spi_dev));
183         imx31_add_spi_imx0(&pcm037_spi1_pdata);
184
185         platform_device_register(&pcm037_gpio_keys_device);
186
187         return 0;
188 }
189
190 late_initcall(eet_init_devices);