GNU Linux-libre 4.19.264-gnu1
[releases.git] / arch / arm / mach-imx / 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/input.h>
11 #include <linux/platform_device.h>
12 #include <linux/spi/spi.h>
13
14 #include <asm/mach-types.h>
15
16 #include "pcm037.h"
17 #include "common.h"
18 #include "devices-imx31.h"
19 #include "iomux-mx3.h"
20
21 static unsigned int pcm037_eet_pins[] = {
22         /* Reserve and hardwire GPIO 57 high - S6E63D6 chipselect */
23         IOMUX_MODE(MX31_PIN_KEY_COL7, IOMUX_CONFIG_GPIO),
24         /* GPIO keys */
25         IOMUX_MODE(MX31_PIN_GPIO1_0,    IOMUX_CONFIG_GPIO), /* 0 */
26         IOMUX_MODE(MX31_PIN_GPIO1_1,    IOMUX_CONFIG_GPIO), /* 1 */
27         IOMUX_MODE(MX31_PIN_GPIO1_2,    IOMUX_CONFIG_GPIO), /* 2 */
28         IOMUX_MODE(MX31_PIN_GPIO1_3,    IOMUX_CONFIG_GPIO), /* 3 */
29         IOMUX_MODE(MX31_PIN_SVEN0,      IOMUX_CONFIG_GPIO), /* 32 */
30         IOMUX_MODE(MX31_PIN_STX0,       IOMUX_CONFIG_GPIO), /* 33 */
31         IOMUX_MODE(MX31_PIN_SRX0,       IOMUX_CONFIG_GPIO), /* 34 */
32         IOMUX_MODE(MX31_PIN_SIMPD0,     IOMUX_CONFIG_GPIO), /* 35 */
33         IOMUX_MODE(MX31_PIN_RTS1,       IOMUX_CONFIG_GPIO), /* 38 */
34         IOMUX_MODE(MX31_PIN_CTS1,       IOMUX_CONFIG_GPIO), /* 39 */
35         IOMUX_MODE(MX31_PIN_KEY_ROW4,   IOMUX_CONFIG_GPIO), /* 50 */
36         IOMUX_MODE(MX31_PIN_KEY_ROW5,   IOMUX_CONFIG_GPIO), /* 51 */
37         IOMUX_MODE(MX31_PIN_KEY_ROW6,   IOMUX_CONFIG_GPIO), /* 52 */
38         IOMUX_MODE(MX31_PIN_KEY_ROW7,   IOMUX_CONFIG_GPIO), /* 53 */
39
40         /* LEDs */
41         IOMUX_MODE(MX31_PIN_DTR_DTE1,   IOMUX_CONFIG_GPIO), /* 44 */
42         IOMUX_MODE(MX31_PIN_DSR_DTE1,   IOMUX_CONFIG_GPIO), /* 45 */
43         IOMUX_MODE(MX31_PIN_KEY_COL5,   IOMUX_CONFIG_GPIO), /* 55 */
44         IOMUX_MODE(MX31_PIN_KEY_COL6,   IOMUX_CONFIG_GPIO), /* 56 */
45 };
46
47 /* SPI */
48 static struct spi_board_info pcm037_spi_dev[] = {
49         {
50                 .modalias       = "dac124s085",
51                 .max_speed_hz   = 400000,
52                 .bus_num        = 0,
53                 .chip_select    = 1,            /* Index in pcm037_spi1_cs[] */
54                 .mode           = SPI_CPHA,
55         },
56 };
57
58 /* Platform Data for MXC CSPI */
59 static const struct spi_imx_master pcm037_spi1_pdata __initconst = {
60         .num_chipselect = 2,
61 };
62
63 /* GPIO-keys input device */
64 static struct gpio_keys_button pcm037_gpio_keys[] = {
65         {
66                 .type   = EV_KEY,
67                 .code   = KEY_L,
68                 .gpio   = 0,
69                 .desc   = "Wheel Manual",
70                 .wakeup = 0,
71         }, {
72                 .type   = EV_KEY,
73                 .code   = KEY_A,
74                 .gpio   = 1,
75                 .desc   = "Wheel AF",
76                 .wakeup = 0,
77         }, {
78                 .type   = EV_KEY,
79                 .code   = KEY_V,
80                 .gpio   = 2,
81                 .desc   = "Wheel View",
82                 .wakeup = 0,
83         }, {
84                 .type   = EV_KEY,
85                 .code   = KEY_M,
86                 .gpio   = 3,
87                 .desc   = "Wheel Menu",
88                 .wakeup = 0,
89         }, {
90                 .type   = EV_KEY,
91                 .code   = KEY_UP,
92                 .gpio   = 32,
93                 .desc   = "Nav Pad Up",
94                 .wakeup = 0,
95         }, {
96                 .type   = EV_KEY,
97                 .code   = KEY_RIGHT,
98                 .gpio   = 33,
99                 .desc   = "Nav Pad Right",
100                 .wakeup = 0,
101         }, {
102                 .type   = EV_KEY,
103                 .code   = KEY_DOWN,
104                 .gpio   = 34,
105                 .desc   = "Nav Pad Down",
106                 .wakeup = 0,
107         }, {
108                 .type   = EV_KEY,
109                 .code   = KEY_LEFT,
110                 .gpio   = 35,
111                 .desc   = "Nav Pad Left",
112                 .wakeup = 0,
113         }, {
114                 .type   = EV_KEY,
115                 .code   = KEY_ENTER,
116                 .gpio   = 38,
117                 .desc   = "Nav Pad Ok",
118                 .wakeup = 0,
119         }, {
120                 .type   = EV_KEY,
121                 .code   = KEY_O,
122                 .gpio   = 39,
123                 .desc   = "Wheel Off",
124                 .wakeup = 0,
125         }, {
126                 .type   = EV_KEY,
127                 .code   = BTN_FORWARD,
128                 .gpio   = 50,
129                 .desc   = "Focus Forward",
130                 .wakeup = 0,
131         }, {
132                 .type   = EV_KEY,
133                 .code   = BTN_BACK,
134                 .gpio   = 51,
135                 .desc   = "Focus Backward",
136                 .wakeup = 0,
137         }, {
138                 .type   = EV_KEY,
139                 .code   = BTN_MIDDLE,
140                 .gpio   = 52,
141                 .desc   = "Release Half",
142                 .wakeup = 0,
143         }, {
144                 .type   = EV_KEY,
145                 .code   = BTN_EXTRA,
146                 .gpio   = 53,
147                 .desc   = "Release Full",
148                 .wakeup = 0,
149         },
150 };
151
152 static const struct gpio_keys_platform_data
153                 pcm037_gpio_keys_platform_data __initconst = {
154         .buttons        = pcm037_gpio_keys,
155         .nbuttons       = ARRAY_SIZE(pcm037_gpio_keys),
156         .rep            = 0, /* No auto-repeat */
157 };
158
159 int __init pcm037_eet_init_devices(void)
160 {
161         if (pcm037_variant() != PCM037_EET)
162                 return 0;
163
164         mxc_iomux_setup_multiple_pins(pcm037_eet_pins,
165                                 ARRAY_SIZE(pcm037_eet_pins), "pcm037_eet");
166
167         /* SPI */
168         spi_register_board_info(pcm037_spi_dev, ARRAY_SIZE(pcm037_spi_dev));
169         imx31_add_spi_imx0(&pcm037_spi1_pdata);
170
171         imx_add_gpio_keys(&pcm037_gpio_keys_platform_data);
172
173         return 0;
174 }