LXR linux/arch/arm/mach-ux500/board-mop500-stuib.c

   1/*
   2 * Copyright (C) ST-Ericsson SA 2010
   3 *
   4 * License terms: GNU General Public License (GPL), version 2
   5 */
   6
   7#include <linux/kernel.h>
   8#include <linux/init.h>
   9#include <linux/mfd/stmpe.h>
  10#include <linux/input/bu21013.h>
  11#include <linux/gpio.h>
  12#include <linux/interrupt.h>
  13#include <linux/i2c.h>
  14#include <linux/input/matrix_keypad.h>
  15#include <asm/mach-types.h>
  16
  17#include "board-mop500.h"
  18
  19/* STMPE/SKE keypad use this key layout */
  20static const unsigned int mop500_keymap[] = {
  21        KEY(2, 5, KEY_END),
  22        KEY(4, 1, KEY_POWER),
  23        KEY(3, 5, KEY_VOLUMEDOWN),
  24        KEY(1, 3, KEY_3),
  25        KEY(5, 2, KEY_RIGHT),
  26        KEY(5, 0, KEY_9),
  27
  28        KEY(0, 5, KEY_MENU),
  29        KEY(7, 6, KEY_ENTER),
  30        KEY(4, 5, KEY_0),
  31        KEY(6, 7, KEY_2),
  32        KEY(3, 4, KEY_UP),
  33        KEY(3, 3, KEY_DOWN),
  34
  35        KEY(6, 4, KEY_SEND),
  36        KEY(6, 2, KEY_BACK),
  37        KEY(4, 2, KEY_VOLUMEUP),
  38        KEY(5, 5, KEY_1),
  39        KEY(4, 3, KEY_LEFT),
  40        KEY(3, 2, KEY_7),
  41};
  42
  43static const struct matrix_keymap_data mop500_keymap_data = {
  44        .keymap         = mop500_keymap,
  45        .keymap_size    = ARRAY_SIZE(mop500_keymap),
  46};
  47/*
  48 * STMPE1601
  49 */
  50static struct stmpe_keypad_platform_data stmpe1601_keypad_data = {
  51        .debounce_ms    = 64,
  52        .scan_count     = 8,
  53        .no_autorepeat  = true,
  54        .keymap_data    = &mop500_keymap_data,
  55};
  56
  57static struct stmpe_platform_data stmpe1601_data = {
  58        .id             = 1,
  59        .blocks         = STMPE_BLOCK_KEYPAD,
  60        .irq_trigger    = IRQF_TRIGGER_FALLING,
  61        .irq_base       = MOP500_STMPE1601_IRQ(0),
  62        .keypad         = &stmpe1601_keypad_data,
  63        .autosleep      = true,
  64        .autosleep_timeout = 1024,
  65};
  66
  67static struct i2c_board_info __initdata mop500_i2c0_devices_stuib[] = {
  68        {
  69                I2C_BOARD_INFO("stmpe1601", 0x40),
  70                .irq = NOMADIK_GPIO_TO_IRQ(218),
  71                .platform_data = &stmpe1601_data,
  72                .flags = I2C_CLIENT_WAKE,
  73        },
  74};
  75
  76/*
  77 * BU21013 ROHM touchscreen interface on the STUIBs
  78 */
  79
  80#define TOUCH_GPIO_PIN  84
  81
  82#define TOUCH_XMAX      384
  83#define TOUCH_YMAX      704
  84
  85#define PRCMU_CLOCK_OCR         0x1CC
  86#define TSC_EXT_CLOCK_9_6MHZ    0x840000
  87
  88static struct bu21013_platform_device tsc_plat_device = {
  89        .touch_pin = TOUCH_GPIO_PIN,
  90        .touch_x_max = TOUCH_XMAX,
  91        .touch_y_max = TOUCH_YMAX,
  92        .ext_clk = false,
  93        .x_flip = false,
  94        .y_flip = true,
  95};
  96
  97static struct i2c_board_info __initdata u8500_i2c3_devices_stuib[] = {
  98        {
  99                I2C_BOARD_INFO("bu21013_tp", 0x5C),
 100                .platform_data = &tsc_plat_device,
 101        },
 102        {
 103                I2C_BOARD_INFO("bu21013_tp", 0x5D),
 104                .platform_data = &tsc_plat_device,
 105        },
 106};
 107
 108void __init mop500_stuib_init(void)
 109{
 110        if (machine_is_hrefv60())
 111                tsc_plat_device.cs_pin = HREFV60_TOUCH_RST_GPIO;
 112        else
 113                tsc_plat_device.cs_pin = GPIO_BU21013_CS;
 114
 115        mop500_uib_i2c_add(0, mop500_i2c0_devices_stuib,
 116                        ARRAY_SIZE(mop500_i2c0_devices_stuib));
 117
 118        mop500_uib_i2c_add(3, u8500_i2c3_devices_stuib,
 119                        ARRAY_SIZE(u8500_i2c3_devices_stuib));
 120}
 121