diff options
Diffstat (limited to 'arch/arm/mach-ux500/board-mop500-stuib.c')
| -rw-r--r-- | arch/arm/mach-ux500/board-mop500-stuib.c | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/arch/arm/mach-ux500/board-mop500-stuib.c b/arch/arm/mach-ux500/board-mop500-stuib.c new file mode 100644 index 00000000000..8c979770d87 --- /dev/null +++ b/arch/arm/mach-ux500/board-mop500-stuib.c @@ -0,0 +1,205 @@ +/* + * Copyright (C) ST-Ericsson SA 2010 + * + * License terms: GNU General Public License (GPL), version 2 + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/mfd/stmpe.h> +#include <linux/input/bu21013.h> +#include <linux/gpio.h> +#include <linux/interrupt.h> +#include <linux/i2c.h> +#include <linux/input/matrix_keypad.h> +#include <asm/mach-types.h> + +#include "board-mop500.h" + +/* STMPE/SKE keypad use this key layout */ +static const unsigned int mop500_keymap[] = { + KEY(2, 5, KEY_END), + KEY(4, 1, KEY_POWER), + KEY(3, 5, KEY_VOLUMEDOWN), + KEY(1, 3, KEY_3), + KEY(5, 2, KEY_RIGHT), + KEY(5, 0, KEY_9), + + KEY(0, 5, KEY_MENU), + KEY(7, 6, KEY_ENTER), + KEY(4, 5, KEY_0), + KEY(6, 7, KEY_2), + KEY(3, 4, KEY_UP), + KEY(3, 3, KEY_DOWN), + + KEY(6, 4, KEY_SEND), + KEY(6, 2, KEY_BACK), + KEY(4, 2, KEY_VOLUMEUP), + KEY(5, 5, KEY_1), + KEY(4, 3, KEY_LEFT), + KEY(3, 2, KEY_7), +}; + +static const struct matrix_keymap_data mop500_keymap_data = { + .keymap = mop500_keymap, + .keymap_size = ARRAY_SIZE(mop500_keymap), +}; +/* + * STMPE1601 + */ +static struct stmpe_keypad_platform_data stmpe1601_keypad_data = { + .debounce_ms = 64, + .scan_count = 8, + .no_autorepeat = true, + .keymap_data = &mop500_keymap_data, +}; + +static struct stmpe_platform_data stmpe1601_data = { + .id = 1, + .blocks = STMPE_BLOCK_KEYPAD, + .irq_trigger = IRQF_TRIGGER_FALLING, + .irq_base = MOP500_STMPE1601_IRQ(0), + .keypad = &stmpe1601_keypad_data, + .autosleep = true, + .autosleep_timeout = 1024, +}; + +static struct i2c_board_info __initdata mop500_i2c0_devices_stuib[] = { + { + I2C_BOARD_INFO("stmpe1601", 0x40), + .irq = NOMADIK_GPIO_TO_IRQ(218), + .platform_data = &stmpe1601_data, + .flags = I2C_CLIENT_WAKE, + }, +}; + +/* + * BU21013 ROHM touchscreen interface on the STUIBs + */ + +/* tracks number of bu21013 devices being enabled */ +static int bu21013_devices; + +#define TOUCH_GPIO_PIN 84 + +#define TOUCH_XMAX 384 +#define TOUCH_YMAX 704 + +#define PRCMU_CLOCK_OCR 0x1CC +#define TSC_EXT_CLOCK_9_6MHZ 0x840000 + +/** + * bu21013_gpio_board_init : configures the touch panel. + * @reset_pin: reset pin number + * This function can be used to configures + * the voltage and reset the touch panel controller. + */ +static int bu21013_gpio_board_init(int reset_pin) +{ + int retval = 0; + + bu21013_devices++; + if (bu21013_devices == 1) { + retval = gpio_request(reset_pin, "touchp_reset"); + if (retval) { + printk(KERN_ERR "Unable to request gpio reset_pin"); + return retval; + } + retval = gpio_direction_output(reset_pin, 1); + if (retval < 0) { + printk(KERN_ERR "%s: gpio direction failed\n", + __func__); + return retval; + } + } + + return retval; +} + +/** + * bu21013_gpio_board_exit : deconfigures the touch panel controller + * @reset_pin: reset pin number + * This function can be used to deconfigures the chip selection + * for touch panel controller. + */ +static int bu21013_gpio_board_exit(int reset_pin) +{ + int retval = 0; + + if (bu21013_devices == 1) { + retval = gpio_direction_output(reset_pin, 0); + if (retval < 0) { + printk(KERN_ERR "%s: gpio direction failed\n", + __func__); + return retval; + } + gpio_set_value(reset_pin, 0); + } + bu21013_devices--; + + return retval; +} + +/** + * bu21013_read_pin_val : get the interrupt pin value + * This function can be used to get the interrupt pin value for touch panel + * controller. + */ +static int bu21013_read_pin_val(void) +{ + return gpio_get_value(TOUCH_GPIO_PIN); +} + +static struct bu21013_platform_device tsc_plat_device = { + .cs_en = bu21013_gpio_board_init, + .cs_dis = bu21013_gpio_board_exit, + .irq_read_val = bu21013_read_pin_val, + .irq = NOMADIK_GPIO_TO_IRQ(TOUCH_GPIO_PIN), + .touch_x_max = TOUCH_XMAX, + .touch_y_max = TOUCH_YMAX, + .ext_clk = false, + .x_flip = false, + .y_flip = true, +}; + +static struct bu21013_platform_device tsc_plat2_device = { + .cs_en = bu21013_gpio_board_init, + .cs_dis = bu21013_gpio_board_exit, + .irq_read_val = bu21013_read_pin_val, + .irq = NOMADIK_GPIO_TO_IRQ(TOUCH_GPIO_PIN), + .touch_x_max = TOUCH_XMAX, + .touch_y_max = TOUCH_YMAX, + .ext_clk = false, + .x_flip = false, + .y_flip = true, +}; + +static struct i2c_board_info __initdata u8500_i2c3_devices_stuib[] = { + { + I2C_BOARD_INFO("bu21013_tp", 0x5C), + .platform_data = &tsc_plat_device, + }, + { + I2C_BOARD_INFO("bu21013_tp", 0x5D), + .platform_data = &tsc_plat2_device, + }, + +}; + +void __init mop500_stuib_init(void) +{ + if (machine_is_hrefv60()) { + tsc_plat_device.cs_pin = HREFV60_TOUCH_RST_GPIO; + tsc_plat2_device.cs_pin = HREFV60_TOUCH_RST_GPIO; + } else { + tsc_plat_device.cs_pin = GPIO_BU21013_CS; + tsc_plat2_device.cs_pin = GPIO_BU21013_CS; + + } + + mop500_uib_i2c_add(0, mop500_i2c0_devices_stuib, + ARRAY_SIZE(mop500_i2c0_devices_stuib)); + + mop500_uib_i2c_add(3, u8500_i2c3_devices_stuib, + ARRAY_SIZE(u8500_i2c3_devices_stuib)); +} |