LXR linux/arch/arm/mach-imx/mach-pcm037

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * Copyright (C) 2009
   4 * Guennadi Liakhovetski, DENX Software Engineering, <lg@denx.de>
   5 */
   6#include <linux/gpio.h>
   7#include <linux/input.h>
   8#include <linux/platform_device.h>
   9#include <linux/spi/spi.h>
  10
  11#include <asm/mach-types.h>
  12
  13#include "pcm037.h"
  14#include "common.h"
  15#include "devices-imx31.h"
  16#include "iomux-mx3.h"
  17
  18static unsigned int pcm037_eet_pins[] = {
  19        /* Reserve and hardwire GPIO 57 high - S6E63D6 chipselect */
  20        IOMUX_MODE(MX31_PIN_KEY_COL7, IOMUX_CONFIG_GPIO),
  21        /* GPIO keys */
  22        IOMUX_MODE(MX31_PIN_GPIO1_0,    IOMUX_CONFIG_GPIO), /* 0 */
  23        IOMUX_MODE(MX31_PIN_GPIO1_1,    IOMUX_CONFIG_GPIO), /* 1 */
  24        IOMUX_MODE(MX31_PIN_GPIO1_2,    IOMUX_CONFIG_GPIO), /* 2 */
  25        IOMUX_MODE(MX31_PIN_GPIO1_3,    IOMUX_CONFIG_GPIO), /* 3 */
  26        IOMUX_MODE(MX31_PIN_SVEN0,      IOMUX_CONFIG_GPIO), /* 32 */
  27        IOMUX_MODE(MX31_PIN_STX0,       IOMUX_CONFIG_GPIO), /* 33 */
  28        IOMUX_MODE(MX31_PIN_SRX0,       IOMUX_CONFIG_GPIO), /* 34 */
  29        IOMUX_MODE(MX31_PIN_SIMPD0,     IOMUX_CONFIG_GPIO), /* 35 */
  30        IOMUX_MODE(MX31_PIN_RTS1,       IOMUX_CONFIG_GPIO), /* 38 */
  31        IOMUX_MODE(MX31_PIN_CTS1,       IOMUX_CONFIG_GPIO), /* 39 */
  32        IOMUX_MODE(MX31_PIN_KEY_ROW4,   IOMUX_CONFIG_GPIO), /* 50 */
  33        IOMUX_MODE(MX31_PIN_KEY_ROW5,   IOMUX_CONFIG_GPIO), /* 51 */
  34        IOMUX_MODE(MX31_PIN_KEY_ROW6,   IOMUX_CONFIG_GPIO), /* 52 */
  35        IOMUX_MODE(MX31_PIN_KEY_ROW7,   IOMUX_CONFIG_GPIO), /* 53 */
  36
  37        /* LEDs */
  38        IOMUX_MODE(MX31_PIN_DTR_DTE1,   IOMUX_CONFIG_GPIO), /* 44 */
  39        IOMUX_MODE(MX31_PIN_DSR_DTE1,   IOMUX_CONFIG_GPIO), /* 45 */
  40        IOMUX_MODE(MX31_PIN_KEY_COL5,   IOMUX_CONFIG_GPIO), /* 55 */
  41        IOMUX_MODE(MX31_PIN_KEY_COL6,   IOMUX_CONFIG_GPIO), /* 56 */
  42};
  43
  44/* SPI */
  45static struct spi_board_info pcm037_spi_dev[] = {
  46        {
  47                .modalias       = "dac124s085",
  48                .max_speed_hz   = 400000,
  49                .bus_num        = 0,
  50                .chip_select    = 1,            /* Index in pcm037_spi1_cs[] */
  51                .mode           = SPI_CPHA,
  52        },
  53};
  54
  55/* GPIO-keys input device */
  56static struct gpio_keys_button pcm037_gpio_keys[] = {
  57        {
  58                .type   = EV_KEY,
  59                .code   = KEY_L,
  60                .gpio   = 0,
  61                .desc   = "Wheel Manual",
  62                .wakeup = 0,
  63        }, {
  64                .type   = EV_KEY,
  65                .code   = KEY_A,
  66                .gpio   = 1,
  67                .desc   = "Wheel AF",
  68                .wakeup = 0,
  69        }, {
  70                .type   = EV_KEY,
  71                .code   = KEY_V,
  72                .gpio   = 2,
  73                .desc   = "Wheel View",
  74                .wakeup = 0,
  75        }, {
  76                .type   = EV_KEY,
  77                .code   = KEY_M,
  78                .gpio   = 3,
  79                .desc   = "Wheel Menu",
  80                .wakeup = 0,
  81        }, {
  82                .type   = EV_KEY,
  83                .code   = KEY_UP,
  84                .gpio   = 32,
  85                .desc   = "Nav Pad Up",
  86                .wakeup = 0,
  87        }, {
  88                .type   = EV_KEY,
  89                .code   = KEY_RIGHT,
  90                .gpio   = 33,
  91                .desc   = "Nav Pad Right",
  92                .wakeup = 0,
  93        }, {
  94                .type   = EV_KEY,
  95                .code   = KEY_DOWN,
  96                .gpio   = 34,
  97                .desc   = "Nav Pad Down",
  98                .wakeup = 0,
  99        }, {
 100                .type   = EV_KEY,
 101                .code   = KEY_LEFT,
 102                .gpio   = 35,
 103                .desc   = "Nav Pad Left",
 104                .wakeup = 0,
 105        }, {
 106                .type   = EV_KEY,
 107                .code   = KEY_ENTER,
 108                .gpio   = 38,
 109                .desc   = "Nav Pad Ok",
 110                .wakeup = 0,
 111        }, {
 112                .type   = EV_KEY,
 113                .code   = KEY_O,
 114                .gpio   = 39,
 115                .desc   = "Wheel Off",
 116                .wakeup = 0,
 117        }, {
 118                .type   = EV_KEY,
 119                .code   = BTN_FORWARD,
 120                .gpio   = 50,
 121                .desc   = "Focus Forward",
 122                .wakeup = 0,
 123        }, {
 124                .type   = EV_KEY,
 125                .code   = BTN_BACK,
 126                .gpio   = 51,
 127                .desc   = "Focus Backward",
 128                .wakeup = 0,
 129        }, {
 130                .type   = EV_KEY,
 131                .code   = BTN_MIDDLE,
 132                .gpio   = 52,
 133                .desc   = "Release Half",
 134                .wakeup = 0,
 135        }, {
 136                .type   = EV_KEY,
 137                .code   = BTN_EXTRA,
 138                .gpio   = 53,
 139                .desc   = "Release Full",
 140                .wakeup = 0,
 141        },
 142};
 143
 144static const struct gpio_keys_platform_data
 145                pcm037_gpio_keys_platform_data __initconst = {
 146        .buttons        = pcm037_gpio_keys,
 147        .nbuttons       = ARRAY_SIZE(pcm037_gpio_keys),
 148        .rep            = 0, /* No auto-repeat */
 149};
 150
 151int __init pcm037_eet_init_devices(void)
 152{
 153        if (pcm037_variant() != PCM037_EET)
 154                return 0;
 155
 156        mxc_iomux_setup_multiple_pins(pcm037_eet_pins,
 157                                ARRAY_SIZE(pcm037_eet_pins), "pcm037_eet");
 158
 159        /* SPI */
 160        spi_register_board_info(pcm037_spi_dev, ARRAY_SIZE(pcm037_spi_dev));
 161        imx31_add_spi_imx0(NULL);
 162
 163        imx_add_gpio_keys(&pcm037_gpio_keys_platform_data);
 164
 165        return 0;
 166}
 167