diff options
| -rw-r--r-- | arch/arm/mach-pxa/em-x270.c | 64 |
1 files changed, 46 insertions, 18 deletions
diff --git a/arch/arm/mach-pxa/em-x270.c b/arch/arm/mach-pxa/em-x270.c index 3503f523070..e2f9834e2da 100644 --- a/arch/arm/mach-pxa/em-x270.c +++ b/arch/arm/mach-pxa/em-x270.c @@ -28,6 +28,8 @@ #include <linux/spi/libertas_spi.h> #include <linux/power_supply.h> #include <linux/apm-emulation.h> +#include <linux/i2c.h> +#include <linux/i2c/pca953x.h> #include <media/soc_camera.h> @@ -52,15 +54,18 @@ #define GPIO13_MMC_CD (13) #define GPIO95_MMC_WP (95) #define GPIO56_NAND_RB (56) +#define GPIO93_CAM_RESET (93) /* eXeda specific GPIOs */ #define GPIO114_MMC_CD (114) #define GPIO20_NAND_RB (20) #define GPIO38_SD_PWEN (38) +#define GPIO37_WLAN_RST (37) +#define GPIO95_TOUCHPAD_INT (95) +#define GPIO130_CAM_RESET (130) /* common GPIOs */ #define GPIO11_NAND_CS (11) -#define GPIO93_CAM_RESET (93) #define GPIO41_ETHIRQ (41) #define EM_X270_ETHIRQ IRQ_GPIO(GPIO41_ETHIRQ) #define GPIO115_WLAN_PWEN (115) @@ -69,6 +74,7 @@ static int mmc_cd; static int nand_rb; static int dm9000_flags; +static int cam_reset; static unsigned long common_pin_config[] = { /* AC'97 */ @@ -180,7 +186,6 @@ static unsigned long common_pin_config[] = { /* power controls */ GPIO20_GPIO | MFP_LPM_DRIVE_LOW, /* GPRS_PWEN */ - GPIO93_GPIO | MFP_LPM_DRIVE_LOW, /* Camera reset */ GPIO115_GPIO | MFP_LPM_DRIVE_LOW, /* WLAN_PWEN */ /* NAND controls */ @@ -191,14 +196,16 @@ static unsigned long common_pin_config[] = { }; static unsigned long em_x270_pin_config[] = { - GPIO13_GPIO, /* MMC card detect */ - GPIO56_GPIO, /* NAND Ready/Busy */ - GPIO95_GPIO, /* MMC Write protect */ + GPIO13_GPIO, /* MMC card detect */ + GPIO56_GPIO, /* NAND Ready/Busy */ + GPIO93_GPIO | MFP_LPM_DRIVE_LOW, /* Camera reset */ + GPIO95_GPIO, /* MMC Write protect */ }; static unsigned long exeda_pin_config[] = { GPIO20_GPIO, /* NAND Ready/Busy */ GPIO38_GPIO | MFP_LPM_DRIVE_LOW, /* SD slot power */ + GPIO95_GPIO, /* touchpad IRQ */ GPIO114_GPIO, /* MMC card detect */ }; @@ -863,26 +870,26 @@ static int em_x270_sensor_init(struct device *dev) { int ret; - ret = gpio_request(GPIO93_CAM_RESET, "camera reset"); + ret = gpio_request(cam_reset, "camera reset"); if (ret) return ret; - gpio_direction_output(GPIO93_CAM_RESET, 0); + gpio_direction_output(cam_reset, 0); em_x270_camera_ldo = regulator_get(NULL, "vcc cam"); if (em_x270_camera_ldo == NULL) { - gpio_free(GPIO93_CAM_RESET); + gpio_free(cam_reset); return -ENODEV; } ret = regulator_enable(em_x270_camera_ldo); if (ret) { regulator_put(em_x270_camera_ldo); - gpio_free(GPIO93_CAM_RESET); + gpio_free(cam_reset); return ret; } - gpio_set_value(GPIO93_CAM_RESET, 1); + gpio_set_value(cam_reset, 1); return 0; } @@ -902,7 +909,7 @@ static int em_x270_sensor_power(struct device *dev, int on) if (on == is_on) return 0; - gpio_set_value(GPIO93_CAM_RESET, !on); + gpio_set_value(cam_reset, !on); if (on) ret = regulator_enable(em_x270_camera_ldo); @@ -912,7 +919,7 @@ static int em_x270_sensor_power(struct device *dev, int on) if (ret) return ret; - gpio_set_value(GPIO93_CAM_RESET, on); + gpio_set_value(cam_reset, on); return 0; } @@ -929,13 +936,8 @@ static struct i2c_board_info em_x270_i2c_cam_info[] = { }, }; -static struct i2c_pxa_platform_data em_x270_i2c_info = { - .fast_mode = 1, -}; - static void __init em_x270_init_camera(void) { - pxa_set_i2c_info(&em_x270_i2c_info); i2c_register_board_info(0, ARRAY_AND_SIZE(em_x270_i2c_cam_info)); pxa_set_camera_info(&em_x270_camera_platform_data); } @@ -1069,6 +1071,29 @@ static void __init em_x270_init_da9030(void) i2c_register_board_info(1, &em_x270_i2c_pmic_info, 1); } +static struct pca953x_platform_data exeda_gpio_ext_pdata = { + .gpio_base = 128, +}; + +static struct i2c_board_info exeda_i2c_info[] = { + { + I2C_BOARD_INFO("pca9555", 0x21), + .platform_data = &exeda_gpio_ext_pdata, + }, +}; + +static struct i2c_pxa_platform_data em_x270_i2c_info = { + .fast_mode = 1, +}; + +static void __init em_x270_init_i2c(void) +{ + pxa_set_i2c_info(&em_x270_i2c_info); + + if (machine_is_exeda()) + i2c_register_board_info(0, ARRAY_AND_SIZE(exeda_i2c_info)); +} + static void __init em_x270_module_init(void) { pr_info("%s\n", __func__); @@ -1077,6 +1102,7 @@ static void __init em_x270_module_init(void) mmc_cd = GPIO13_MMC_CD; nand_rb = GPIO56_NAND_RB; dm9000_flags = DM9000_PLATF_32BITONLY; + cam_reset = GPIO93_CAM_RESET; } static void __init em_x270_exeda_init(void) @@ -1087,6 +1113,7 @@ static void __init em_x270_exeda_init(void) mmc_cd = GPIO114_MMC_CD; nand_rb = GPIO20_NAND_RB; dm9000_flags = DM9000_PLATF_16BITONLY; + cam_reset = GPIO130_CAM_RESET; } static void __init em_x270_init(void) @@ -1111,8 +1138,9 @@ static void __init em_x270_init(void) em_x270_init_keypad(); em_x270_init_gpio_keys(); em_x270_init_ac97(); - em_x270_init_camera(); em_x270_init_spi(); + em_x270_init_i2c(); + em_x270_init_camera(); } MACHINE_START(EM_X270, "Compulab EM-X270") |