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/* Platform Data for MXC CSPI */
  56static const struct spi_imx_master pcm037_spi1_pdata __initconst = {
  57        .num_chipselect = 2,
  58};
  59
  60/* GPIO-keys input device */
  61static struct gpio_keys_button pcm037_gpio_keys[] = {
  62        {
  63                .type   = EV_KEY,
  64                .code   = KEY_L,
  65                .gpio   = 0,
  66                .desc   = "Wheel Manual",
  67                .wakeup = 0,
  68        }, {
  69                .type   = EV_KEY,
  70                .code   = KEY_A,
  71                .gpio   = 1,
  72                .desc   = "Wheel AF",
  73                .wakeup = 0,
  74        }, {
  75                .type   = EV_KEY,
  76                .code   = KEY_V,
  77                .gpio   = 2,
  78                .desc   = "Wheel View",
  79                .wakeup = 0,
  80        }, {
  81                .type   = EV_KEY,
  82                .code   = KEY_M,
  83                .gpio   = 3,
  84                .desc   = "Wheel Menu",
  85                .wakeup = 0,
  86        }, {
  87                .type   = EV_KEY,
  88                .code   = KEY_UP,
  89                .gpio   = 32,
  90                .desc   = "Nav Pad Up",
  91                .wakeup = 0,
  92        }, {
  93                .type   = EV_KEY,
  94                .code   = KEY_RIGHT,
  95                .gpio   = 33,
  96                .desc   = "Nav Pad Right",
  97                .wakeup = 0,
  98        }, {
  99                .type   = EV_KEY,
 100                .code   = KEY_DOWN,
 101                .gpio   = 34,
 102                .desc   = "Nav Pad Down",
 103                .wakeup = 0,
 104        }, {
 105                .type   = EV_KEY,
 106                .code   = KEY_LEFT,
 107                .gpio   = 35,
 108                .desc   = "Nav Pad Left",
 109                .wakeup = 0,
 110        }, {
 111                .type   = EV_KEY,
 112                .code   = KEY_ENTER,
 113                .gpio   = 38,
 114                .desc   = "Nav Pad Ok",
 115                .wakeup = 0,
 116        }, {
 117                .type   = EV_KEY,
 118                .code   = KEY_O,
 119                .gpio   = 39,
 120                .desc   = "Wheel Off",
 121                .wakeup = 0,
 122        }, {
 123                .type   = EV_KEY,
 124                .code   = BTN_FORWARD,
 125                .gpio   = 50,
 126                .desc   = "Focus Forward",
 127                .wakeup = 0,
 128        }, {
 129                .type   = EV_KEY,
 130                .code   = BTN_BACK,
 131                .gpio   = 51,
 132                .desc   = "Focus Backward",
 133                .wakeup = 0,
 134        }, {
 135                .type   = EV_KEY,
 136                .code   = BTN_MIDDLE,
 137                .gpio   = 52,
 138                .desc   = "Release Half",
 139                .wakeup = 0,
 140        }, {
 141                .type   = EV_KEY,
 142                .code   = BTN_EXTRA,
 143                .gpio   = 53,
 144                .desc   = "Release Full",
 145                .wakeup = 0,
 146        },
 147};
 148
 149static const struct gpio_keys_platform_data
 150                pcm037_gpio_keys_platform_data __initconst = {
 151        .buttons        = pcm037_gpio_keys,
 152        .nbuttons       = ARRAY_SIZE(pcm037_gpio_keys),
 153        .rep            = 0, /* No auto-repeat */
 154};
 155
 156int __init pcm037_eet_init_devices(void)
 157{
 158        if (pcm037_variant() != PCM037_EET)
 159                return 0;
 160
 161        mxc_iomux_setup_multiple_pins(pcm037_eet_pins,
 162                                ARRAY_SIZE(pcm037_eet_pins), "pcm037_eet");
 163
 164        /* SPI */
 165        spi_register_board_info(pcm037_spi_dev, ARRAY_SIZE(pcm037_spi_dev));
 166        imx31_add_spi_imx0(&pcm037_spi1_pdata);
 167
 168        imx_add_gpio_keys(&pcm037_gpio_keys_platform_data);
 169
 170        return 0;
 171}
 172