1 files changed, 150 insertions, 23 deletions

diff --git a/arch/arm/mach-pxa/em-x270.c b/arch/arm/mach-pxa/em-x270.c
index bc0f73fbd4ca..243e0802b5f4 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>
 
@@ -41,7 +43,7 @@
 #include <mach/ohci.h>
 #include <mach/mmc.h>
 #include <mach/pxa27x_keypad.h>
-#include <mach/i2c.h>
+#include <plat/i2c.h>
 #include <mach/camera.h>
 #include <mach/pxa2xx_spi.h>
 
@@ -52,23 +54,31 @@
 #define GPIO13_MMC_CD           (13)
 #define GPIO95_MMC_WP           (95)
 #define GPIO56_NAND_RB          (56)
+#define GPIO93_CAM_RESET        (93)
+#define GPIO16_USB_HUB_RESET    (16)
 
 /* 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)
+#define GPIO10_USB_HUB_RESET    (10)
 
 /* 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)
 #define GPIO19_WLAN_STRAP       (19)
+#define GPIO9_USB_VBUS_EN       (9)
 
 static int mmc_cd;
 static int nand_rb;
 static int dm9000_flags;
+static int cam_reset;
+static int usb_hub_reset;
 
 static unsigned long common_pin_config[] = {
         /* AC'97 */
@@ -180,7 +190,6 @@ 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 +200,18 @@ 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 */
+        GPIO16_GPIO,                            /* USB hub reset */
+        GPIO56_GPIO,                            /* NAND Ready/Busy */
+        GPIO93_GPIO     | MFP_LPM_DRIVE_LOW,    /* Camera reset */
+        GPIO95_GPIO,                            /* MMC Write protect */
 };
 
 static unsigned long exeda_pin_config[] = {
+        GPIO10_GPIO,                            /* USB hub reset */
         GPIO20_GPIO,                            /* NAND Ready/Busy */
         GPIO38_GPIO     | MFP_LPM_DRIVE_LOW,    /* SD slot power */
+        GPIO95_GPIO,                            /* touchpad IRQ */
         GPIO114_GPIO,                           /* MMC card detect */
 };
 
@@ -464,18 +477,79 @@ static inline void em_x270_init_nor(void) {}
 
 /* PXA27x OHCI controller setup */
 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
+static struct regulator *em_x270_usb_ldo;
+
+static int em_x270_usb_hub_init(void)
+{
+        int err;
+
+        em_x270_usb_ldo = regulator_get(NULL, "vcc usb");
+        if (IS_ERR(em_x270_usb_ldo))
+                return PTR_ERR(em_x270_usb_ldo);
+
+        err = gpio_request(GPIO9_USB_VBUS_EN, "vbus en");
+        if (err)
+                goto err_free_usb_ldo;
+
+        err = gpio_request(usb_hub_reset, "hub rst");
+        if (err)
+                goto err_free_vbus_gpio;
+
+        /* USB Hub power-on and reset */
+        gpio_direction_output(usb_hub_reset, 0);
+        regulator_enable(em_x270_usb_ldo);
+        gpio_set_value(usb_hub_reset, 1);
+        gpio_set_value(usb_hub_reset, 0);
+        regulator_disable(em_x270_usb_ldo);
+        regulator_enable(em_x270_usb_ldo);
+        gpio_set_value(usb_hub_reset, 1);
+
+        /* enable VBUS */
+        gpio_direction_output(GPIO9_USB_VBUS_EN, 1);
+
+        return 0;
+
+err_free_vbus_gpio:
+        gpio_free(GPIO9_USB_VBUS_EN);
+err_free_usb_ldo:
+        regulator_put(em_x270_usb_ldo);
+
+        return err;
+}
+
 static int em_x270_ohci_init(struct device *dev)
 {
+        int err;
+
+        /* we don't want to entirely disable USB if the HUB init failed */
+        err = em_x270_usb_hub_init();
+        if (err)
+                pr_err("USB Hub initialization failed: %d\n", err);
+
         /* enable port 2 transiever */
         UP2OCR = UP2OCR_HXS | UP2OCR_HXOE;
 
         return 0;
 }
 
+static void em_x270_ohci_exit(struct device *dev)
+{
+        gpio_free(usb_hub_reset);
+        gpio_free(GPIO9_USB_VBUS_EN);
+
+        if (!IS_ERR(em_x270_usb_ldo)) {
+                if (regulator_is_enabled(em_x270_usb_ldo))
+                        regulator_disable(em_x270_usb_ldo);
+
+                regulator_put(em_x270_usb_ldo);
+        }
+}
+
 static struct pxaohci_platform_data em_x270_ohci_platform_data = {
         .port_mode      = PMM_PERPORT_MODE,
         .flags          = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
         .init           = em_x270_ohci_init,
+        .exit           = em_x270_ohci_exit,
 };
 
 static void __init em_x270_init_ohci(void)
@@ -677,26 +751,52 @@ static int em_x270_libertas_setup(struct spi_device *spi)
         if (err)
                 return err;
 
+        err = gpio_request(GPIO19_WLAN_STRAP, "WLAN STRAP");
+        if (err)
+                goto err_free_pwen;
+
+        if (machine_is_exeda()) {
+                err = gpio_request(GPIO37_WLAN_RST, "WLAN RST");
+                if (err)
+                        goto err_free_strap;
+
+                gpio_direction_output(GPIO37_WLAN_RST, 1);
+                msleep(100);
+        }
+
         gpio_direction_output(GPIO19_WLAN_STRAP, 1);
-        mdelay(100);
+        msleep(100);
 
         pxa2xx_mfp_config(ARRAY_AND_SIZE(em_x270_libertas_pin_config));
 
         gpio_direction_output(GPIO115_WLAN_PWEN, 0);
-        mdelay(100);
+        msleep(100);
         gpio_set_value(GPIO115_WLAN_PWEN, 1);
-        mdelay(100);
+        msleep(100);
 
         spi->bits_per_word = 16;
         spi_setup(spi);
 
         return 0;
+
+err_free_strap:
+        gpio_free(GPIO19_WLAN_STRAP);
+err_free_pwen:
+        gpio_free(GPIO115_WLAN_PWEN);
+
+        return err;
 }
 
 static int em_x270_libertas_teardown(struct spi_device *spi)
 {
         gpio_set_value(GPIO115_WLAN_PWEN, 0);
         gpio_free(GPIO115_WLAN_PWEN);
+        gpio_free(GPIO19_WLAN_STRAP);
+
+        if (machine_is_exeda()) {
+                gpio_set_value(GPIO37_WLAN_RST, 0);
+                gpio_free(GPIO37_WLAN_RST);
+        }
 
         return 0;
 }
@@ -863,26 +963,26 @@ 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 +1002,7 @@ 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 +1012,7 @@ 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 +1029,8 @@ 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);
 }
@@ -985,7 +1080,7 @@ struct led_info em_x270_led_info = {
 };
 
 struct power_supply_info em_x270_psy_info = {
-        .name = "LP555597P6H-FPS",
+        .name = "battery",
         .technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
         .voltage_max_design = 4200000,
         .voltage_min_design = 3000000,
@@ -1069,6 +1164,29 @@ 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 +1195,8 @@ 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;
+        usb_hub_reset = GPIO16_USB_HUB_RESET;
 }
 
 static void __init em_x270_exeda_init(void)
@@ -1087,12 +1207,18 @@ 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;
+        usb_hub_reset = GPIO10_USB_HUB_RESET;
 }
 
 static void __init em_x270_init(void)
 {
         pxa2xx_mfp_config(ARRAY_AND_SIZE(common_pin_config));
 
+#ifdef CONFIG_PM
+        pxa27x_set_pwrmode(PWRMODE_DEEPSLEEP);
+#endif
+
         if (machine_is_em_x270())
                 em_x270_module_init();
         else if (machine_is_exeda())
@@ -1111,8 +1237,9 @@ 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")