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 */
  20 static 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
  43 static const struct matrix_keymap_data mop500_keymap_data = {
  44         .keymap         = mop500_keymap,
  45         .keymap_size    = ARRAY_SIZE(mop500_keymap),
  46 };
  47 /*
  48  * STMPE1601
  49  */
  50 static 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
  57 static 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
  67 static 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
  88 static 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
  97 static 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
 108 void __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 }