diff options
Diffstat (limited to 'arch/arm/mach-ux500/board-mop500-cyttsp.c')
| -rwxr-xr-x | arch/arm/mach-ux500/board-mop500-cyttsp.c | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/arch/arm/mach-ux500/board-mop500-cyttsp.c b/arch/arm/mach-ux500/board-mop500-cyttsp.c new file mode 100755 index 00000000000..2aa27ea9b1f --- /dev/null +++ b/arch/arm/mach-ux500/board-mop500-cyttsp.c @@ -0,0 +1,226 @@ +/* + * Copyright (C) 2011 ST-Ericsson SA + * Author: Avinash A <avinash.a@stericsson.com> for ST-Ericsson + * License terms:GNU General Public License (GPL) version 2 + */ +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/spi/spi.h> +#include <linux/gpio.h> +#include <linux/cyttsp.h> +#include <linux/delay.h> +#include <linux/gpio/nomadik.h> +#include <linux/i2c.h> +#include <linux/input/matrix_keypad.h> +#include <linux/mfd/tc3589x.h> +#include <linux/mfd/dbx500-prcmu.h> +#include <linux/amba/pl022.h> +#include <plat/pincfg.h> +#include <mach/hardware.h> +#include <mach/irqs.h> +#include <mach/irqs-db8500.h> +#include "pins-db8500.h" +#include "board-mop500.h" +#include "devices-db8500.h" + +#define NUM_SSP_CLIENTS 10 + +/* cyttsp_gpio_board_init : configures the touch panel. */ +static int cyttsp_plat_init(int on) +{ + int ret; + + ret = gpio_direction_output(CYPRESS_SLAVE_SELECT_GPIO, 1); + if (ret < 0) { + pr_err("slave select gpio direction failed\n"); + gpio_free(CYPRESS_SLAVE_SELECT_GPIO); + return ret; + } + return 0; +} + +static struct pl022_ssp_controller mop500_spi2_data = { + .bus_id = SPI023_2_CONTROLLER, + .num_chipselect = NUM_SSP_CLIENTS, +}; + +static int cyttsp_wakeup(void) +{ + int ret; + + ret = gpio_request(CYPRESS_TOUCH_INT_PIN, "Wakeup_pin"); + if (ret < 0) { + pr_err("touch gpio failed\n"); + return ret; + } + ret = gpio_direction_output(CYPRESS_TOUCH_INT_PIN, 1); + if (ret < 0) { + pr_err("touch gpio direction failed\n"); + goto out; + } + gpio_set_value(CYPRESS_TOUCH_INT_PIN, 0); + gpio_set_value(CYPRESS_TOUCH_INT_PIN, 1); + /* + * To wake up the controller from sleep + * state the interrupt pin needs to be + * pulsed twice with a delay greater + * than 2 micro seconds. + */ + udelay(3); + gpio_set_value(CYPRESS_TOUCH_INT_PIN, 0); + gpio_set_value(CYPRESS_TOUCH_INT_PIN, 1); + ret = gpio_direction_input(CYPRESS_TOUCH_INT_PIN); + if (ret < 0) { + pr_err("touch gpio direction IN config failed\n"); + goto out; + } +out: + gpio_free(CYPRESS_TOUCH_INT_PIN); + return 0; +} +struct cyttsp_platform_data cyttsp_platdata = { + .maxx = 480, + .maxy = 854, + .flags = 0, + .gen = CY_GEN3, + .use_st = 0, + .use_mt = 1, + .use_trk_id = 0, + .use_hndshk = 0, + .use_sleep = 1, + .use_gestures = 0, + .use_load_file = 0, + .use_force_fw_update = 0, + .use_virtual_keys = 0, + /* activate up to 4 groups and set active distance */ + .gest_set = CY_GEST_GRP_NONE | CY_ACT_DIST, + /* change scn_type to enable finger and/or stylus detection */ + .scn_typ = 0xA5, /* autodetect finger+stylus; balanced mutual scan */ + .act_intrvl = CY_ACT_INTRVL_DFLT, /* Active refresh interval; ms */ + .tch_tmout = CY_TCH_TMOUT_DFLT, /* Active touch timeout; ms */ + .lp_intrvl = CY_LP_INTRVL_DFLT, /* Low power refresh interval; ms */ + .init = cyttsp_plat_init, + .mt_sync = input_mt_sync, + .wakeup = cyttsp_wakeup, + .name = CY_SPI_NAME, + .irq_gpio = CYPRESS_TOUCH_INT_PIN, + .rst_gpio = CYPRESS_TOUCH_RST_GPIO, +}; + +static void cyttsp_spi_cs_control(u32 command) +{ + if (command == SSP_CHIP_SELECT) + gpio_set_value(CYPRESS_SLAVE_SELECT_GPIO, 0); + else if (command == SSP_CHIP_DESELECT) + gpio_set_value(CYPRESS_SLAVE_SELECT_GPIO, 1); +} + +static struct pl022_config_chip cyttsp_ssp_config_chip = { + .com_mode = INTERRUPT_TRANSFER, + .iface = SSP_INTERFACE_MOTOROLA_SPI, + /* we can act as master only */ + .hierarchy = SSP_MASTER, + .slave_tx_disable = 0, + .rx_lev_trig = SSP_RX_1_OR_MORE_ELEM, + .tx_lev_trig = SSP_TX_16_OR_MORE_EMPTY_LOC, + .ctrl_len = SSP_BITS_16, + .wait_state = SSP_MWIRE_WAIT_ZERO, + .duplex = SSP_MICROWIRE_CHANNEL_FULL_DUPLEX, + .cs_control = cyttsp_spi_cs_control, +}; + +static struct spi_board_info cypress_spi_devices[] = { + { + .modalias = CY_SPI_NAME, + .controller_data = &cyttsp_ssp_config_chip, + .platform_data = &cyttsp_platdata, + .max_speed_hz = 1000000, + .bus_num = SPI023_2_CONTROLLER, + .chip_select = 0, + .mode = SPI_MODE_0, + } +}; + +/* + * TC35893 + */ +static const unsigned int sony_keymap[] = { + KEY(3, 1, KEY_END), + KEY(4, 1, KEY_HOME), + KEY(6, 4, KEY_VOLUMEDOWN), + KEY(4, 2, KEY_EMAIL), + KEY(3, 3, KEY_RIGHT), + KEY(2, 5, KEY_BACKSPACE), + + KEY(6, 7, KEY_MENU), + KEY(5, 0, KEY_ENTER), + KEY(4, 3, KEY_0), + KEY(3, 4, KEY_DOT), + KEY(5, 2, KEY_UP), + KEY(3, 5, KEY_DOWN), + + KEY(4, 5, KEY_SEND), + KEY(0, 5, KEY_BACK), + KEY(6, 2, KEY_VOLUMEUP), + KEY(1, 3, KEY_SPACE), + KEY(7, 6, KEY_LEFT), + KEY(5, 5, KEY_SEARCH), +}; + +static struct matrix_keymap_data sony_keymap_data = { + .keymap = sony_keymap, + .keymap_size = ARRAY_SIZE(sony_keymap), +}; + +static struct tc3589x_keypad_platform_data tc35893_data = { + .krow = TC_KPD_ROWS, + .kcol = TC_KPD_COLUMNS, + .debounce_period = TC_KPD_DEBOUNCE_PERIOD, + .settle_time = TC_KPD_SETTLE_TIME, + .irqtype = IRQF_TRIGGER_FALLING, + .enable_wakeup = true, + .keymap_data = &sony_keymap_data, + .no_autorepeat = true, +}; + +static struct tc3589x_platform_data tc3589x_keypad_data = { + .block = TC3589x_BLOCK_KEYPAD, + .keypad = &tc35893_data, + .irq_base = MOP500_EGPIO_IRQ_BASE, +}; + +static struct i2c_board_info __initdata mop500_i2c0_devices_u8500[] = { + { + I2C_BOARD_INFO("tc3589x", 0x44), + .platform_data = &tc3589x_keypad_data, + .irq = NOMADIK_GPIO_TO_IRQ(64), + .flags = I2C_CLIENT_WAKE, + }, +}; + +void mop500_cyttsp_init(void) +{ + int ret = 0; + + /* + * Enable the alternative C function + * in the PRCMU register + */ + prcmu_enable_spi2(); + ret = gpio_request(CYPRESS_SLAVE_SELECT_GPIO, "slave_select_gpio"); + if (ret < 0) + pr_err("slave select gpio failed\n"); + spi_register_board_info(cypress_spi_devices, + ARRAY_SIZE(cypress_spi_devices)); +} + +void __init mop500_u8500uib_r3_init(void) +{ + mop500_cyttsp_init(); + db8500_add_spi2(&mop500_spi2_data); + nmk_config_pin((GPIO64_GPIO | PIN_INPUT_PULLUP), false); + mop500_uib_i2c_add(0, mop500_i2c0_devices_u8500, + ARRAY_SIZE(mop500_i2c0_devices_u8500)); + mop500_uib_i2c_add(0, mop500_i2c0_devices_u8500, + ARRAY_SIZE(mop500_i2c0_devices_u8500)); +} |