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574ec547 GL |
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> | |
574ec547 GL |
10 | #include <linux/input.h> |
11 | #include <linux/platform_device.h> | |
12 | #include <linux/spi/spi.h> | |
13 | ||
574ec547 GL |
14 | #include <asm/mach-types.h> |
15 | ||
16 | #include "pcm037.h" | |
e3372474 | 17 | #include "common.h" |
c0f832bc | 18 | #include "devices-imx31.h" |
267dd34c | 19 | #include "iomux-mx3.h" |
574ec547 GL |
20 | |
21 | static unsigned int pcm037_eet_pins[] = { | |
574ec547 GL |
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 = 0, /* Index in pcm037_spi1_cs[] */ | |
54 | .mode = SPI_CPHA, | |
55 | }, | |
56 | }; | |
57 | ||
58 | /* Platform Data for MXC CSPI */ | |
574ec547 GL |
59 | static int pcm037_spi1_cs[] = {MXC_SPI_CS(1), IOMUX_TO_GPIO(MX31_PIN_KEY_COL7)}; |
60 | ||
a4dc0135 | 61 | static const struct spi_imx_master pcm037_spi1_pdata __initconst = { |
574ec547 GL |
62 | .chipselect = pcm037_spi1_cs, |
63 | .num_chipselect = ARRAY_SIZE(pcm037_spi1_cs), | |
64 | }; | |
574ec547 GL |
65 | |
66 | /* GPIO-keys input device */ | |
67 | static struct gpio_keys_button pcm037_gpio_keys[] = { | |
68 | { | |
69 | .type = EV_KEY, | |
70 | .code = KEY_L, | |
71 | .gpio = 0, | |
72 | .desc = "Wheel Manual", | |
73 | .wakeup = 0, | |
74 | }, { | |
75 | .type = EV_KEY, | |
76 | .code = KEY_A, | |
77 | .gpio = 1, | |
78 | .desc = "Wheel AF", | |
79 | .wakeup = 0, | |
80 | }, { | |
81 | .type = EV_KEY, | |
82 | .code = KEY_V, | |
83 | .gpio = 2, | |
84 | .desc = "Wheel View", | |
85 | .wakeup = 0, | |
86 | }, { | |
87 | .type = EV_KEY, | |
88 | .code = KEY_M, | |
89 | .gpio = 3, | |
90 | .desc = "Wheel Menu", | |
91 | .wakeup = 0, | |
92 | }, { | |
93 | .type = EV_KEY, | |
94 | .code = KEY_UP, | |
95 | .gpio = 32, | |
96 | .desc = "Nav Pad Up", | |
97 | .wakeup = 0, | |
98 | }, { | |
99 | .type = EV_KEY, | |
100 | .code = KEY_RIGHT, | |
101 | .gpio = 33, | |
102 | .desc = "Nav Pad Right", | |
103 | .wakeup = 0, | |
104 | }, { | |
105 | .type = EV_KEY, | |
106 | .code = KEY_DOWN, | |
107 | .gpio = 34, | |
108 | .desc = "Nav Pad Down", | |
109 | .wakeup = 0, | |
110 | }, { | |
111 | .type = EV_KEY, | |
112 | .code = KEY_LEFT, | |
113 | .gpio = 35, | |
114 | .desc = "Nav Pad Left", | |
115 | .wakeup = 0, | |
116 | }, { | |
117 | .type = EV_KEY, | |
118 | .code = KEY_ENTER, | |
119 | .gpio = 38, | |
120 | .desc = "Nav Pad Ok", | |
121 | .wakeup = 0, | |
122 | }, { | |
123 | .type = EV_KEY, | |
124 | .code = KEY_O, | |
125 | .gpio = 39, | |
126 | .desc = "Wheel Off", | |
127 | .wakeup = 0, | |
128 | }, { | |
129 | .type = EV_KEY, | |
130 | .code = BTN_FORWARD, | |
131 | .gpio = 50, | |
132 | .desc = "Focus Forward", | |
133 | .wakeup = 0, | |
134 | }, { | |
135 | .type = EV_KEY, | |
136 | .code = BTN_BACK, | |
137 | .gpio = 51, | |
138 | .desc = "Focus Backward", | |
139 | .wakeup = 0, | |
140 | }, { | |
141 | .type = EV_KEY, | |
142 | .code = BTN_MIDDLE, | |
143 | .gpio = 52, | |
144 | .desc = "Release Half", | |
145 | .wakeup = 0, | |
146 | }, { | |
147 | .type = EV_KEY, | |
148 | .code = BTN_EXTRA, | |
149 | .gpio = 53, | |
150 | .desc = "Release Full", | |
151 | .wakeup = 0, | |
152 | }, | |
153 | }; | |
154 | ||
5309498a UKK |
155 | static const struct gpio_keys_platform_data |
156 | pcm037_gpio_keys_platform_data __initconst = { | |
574ec547 GL |
157 | .buttons = pcm037_gpio_keys, |
158 | .nbuttons = ARRAY_SIZE(pcm037_gpio_keys), | |
159 | .rep = 0, /* No auto-repeat */ | |
160 | }; | |
161 | ||
8321b758 | 162 | int __init pcm037_eet_init_devices(void) |
574ec547 | 163 | { |
8321b758 | 164 | if (pcm037_variant() != PCM037_EET) |
574ec547 GL |
165 | return 0; |
166 | ||
167 | mxc_iomux_setup_multiple_pins(pcm037_eet_pins, | |
168 | ARRAY_SIZE(pcm037_eet_pins), "pcm037_eet"); | |
169 | ||
170 | /* SPI */ | |
171 | spi_register_board_info(pcm037_spi_dev, ARRAY_SIZE(pcm037_spi_dev)); | |
c0f832bc | 172 | imx31_add_spi_imx0(&pcm037_spi1_pdata); |
574ec547 | 173 | |
5309498a | 174 | imx_add_gpio_keys(&pcm037_gpio_keys_platform_data); |
574ec547 GL |
175 | |
176 | return 0; | |
177 | } |