diff options
Diffstat (limited to 'arch/arm/mach-ux500/board-mop500-cyttsp.c')
| -rw-r--r-- | arch/arm/mach-ux500/board-mop500-cyttsp.c | 250 |
1 files changed, 250 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 100644 index 00000000000..1551355f50d --- /dev/null +++ b/arch/arm/mach-ux500/board-mop500-cyttsp.c @@ -0,0 +1,250 @@ +/* + * 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/input/cyttsp.h> +#include <linux/delay.h> +#include <linux/gpio/nomadik.h> +#include <linux/i2c.h> +#ifdef CONFIG_U8500_FLASH +#include <../drivers/staging/camera_flash/adp1653_plat.h> +#endif +#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 <asm/mach-types.h> +#include "pins-db8500.h" +#include "board-mop500.h" +#include "devices-db8500.h" + +#define NUM_SSP_CLIENTS 10 + +#ifdef CONFIG_U8500_FLASH +static struct adp1653_platform_data __initdata adp1653_pdata_u8500_uib = { + .irq_no = CAMERA_FLASH_INT_PIN +}; +#endif + +static struct i2c_board_info __initdata mop500_i2c2_devices_u8500_r3[] = { +#ifdef CONFIG_U8500_FLASH + { + I2C_BOARD_INFO("adp1653", 0x30), + .platform_data = &adp1653_pdata_u8500_uib + } +#endif +}; + +/* cyttsp_gpio_board_init : configures the touch panel. */ +static int cyttsp_plat_init(void) +{ + 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; +} + +/* cyttsp_gpio_board_exit : deconfigures the touch panel. */ +static void cyttsp_plat_exit(void) +{ + gpio_direction_output(CYPRESS_SLAVE_SELECT_GPIO, 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, + .use_hndshk = 0, + /* set active distance */ + .act_dist = CY_ACT_DIST_DFLT, + .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, + .exit = cyttsp_plat_exit, + .name = CY_SPI_NAME, + .irq_gpio = CYPRESS_TOUCH_INT_PIN, +/* .rst_gpio = CYPRESS_TOUCH_RST_GPIO, Notavailable in mainline */ +}; + +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, + }, +}; + +static 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() +{ + mop500_cyttsp_init(); + db8500_add_spi2(NULL, &mop500_spi2_data); + nmk_config_pin((GPIO64_GPIO | PIN_INPUT_PULLUP), false); + +#ifdef CONFIG_U8500_FLASH + if (machine_is_hrefv60() || machine_is_u8520()) { + adp1653_pdata_u8500_uib.enable_gpio = + HREFV60_CAMERA_FLASH_ENABLE; + } else { + adp1653_pdata_u8500_uib.enable_gpio = + GPIO_CAMERA_FLASH_ENABLE; + } +#endif + 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)); + mop500_uib_i2c_add(2, mop500_i2c2_devices_u8500_r3, + ARRAY_SIZE(mop500_i2c2_devices_u8500_r3)); +} |