mach-pcm037_eet.c 4.6 KB

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