[ARM] pxa: PalmTE2 support for battery, UDC, IrDA and backlight

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>

2 files changed, 213 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/include/mach/palmte2.h b/arch/arm/mach-pxa/include/mach/palmte2.h
index 808ee7faf5ba..12361341f9d8 100644
--- a/arch/arm/mach-pxa/include/mach/palmte2.h
+++ b/arch/arm/mach-pxa/include/mach/palmte2.h
@@ -16,10 +16,26 @@
 /** HERE ARE GPIOs **/
 
 /* GPIOs */
+#define GPIO_NR_PALMTE2_POWER_DETECT            9
+#define GPIO_NR_PALMTE2_HOTSYNC_BUTTON_N        4
+#define GPIO_NR_PALMTE2_EARPHONE_DETECT         15
+
+/* SD/MMC */
 #define GPIO_NR_PALMTE2_SD_DETECT_N             10
 #define GPIO_NR_PALMTE2_SD_POWER                55
 #define GPIO_NR_PALMTE2_SD_READONLY             51
 
+/* IRDA -  disable GPIO connected to SD pin of tranceiver (TFBS4710?) ? */
+#define GPIO_NR_PALMTE2_IR_DISABLE              48
+
+/* USB */
+#define GPIO_NR_PALMTE2_USB_DETECT_N            35
+#define GPIO_NR_PALMTE2_USB_PULLUP              53
+
+/* LCD/BACKLIGHT */
+#define GPIO_NR_PALMTE2_BL_POWER                56
+#define GPIO_NR_PALMTE2_LCD_POWER               37
+
 /* KEYS */
 #define GPIO_NR_PALMTE2_KEY_NOTES       5
 #define GPIO_NR_PALMTE2_KEY_TASKS       7
@@ -40,4 +56,13 @@
 #define PALMTE2_PRESCALER               0x3F
 #define PALMTE2_PERIOD_NS               3500
 
+/* BATTERY */
+#define PALMTE2_BAT_MAX_VOLTAGE         4000    /* 4.00v current voltage */
+#define PALMTE2_BAT_MIN_VOLTAGE         3550    /* 3.55v critical voltage */
+#define PALMTE2_BAT_MAX_CURRENT         0       /* unknokn */
+#define PALMTE2_BAT_MIN_CURRENT         0       /* unknown */
+#define PALMTE2_BAT_MAX_CHARGE          1       /* unknown */
+#define PALMTE2_BAT_MIN_CHARGE          1       /* unknown */
+#define PALMTE2_MAX_LIFE_MINS           360     /* on-life in minutes */
+
 #endif
diff --git a/arch/arm/mach-pxa/palmte2.c b/arch/arm/mach-pxa/palmte2.c
index e0dc655ae83a..43fcf2e86887 100644
--- a/arch/arm/mach-pxa/palmte2.c
+++ b/arch/arm/mach-pxa/palmte2.c
@@ -20,8 +20,11 @@
 #include <linux/irq.h>
 #include <linux/gpio_keys.h>
 #include <linux/input.h>
+#include <linux/pda_power.h>
 #include <linux/pwm_backlight.h>
 #include <linux/gpio.h>
+#include <linux/wm97xx_batt.h>
+#include <linux/power_supply.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -32,6 +35,8 @@
 #include <mach/mmc.h>
 #include <mach/pxafb.h>
 #include <mach/mfp-pxa25x.h>
+#include <mach/irda.h>
+#include <mach/udc.h>
 
 #include "generic.h"
 #include "devices.h"
@@ -56,6 +61,15 @@ static unsigned long palmte2_pin_config[] __initdata = {
         /* PWM */
         GPIO16_PWM0_OUT,
 
+        /* USB */
+        GPIO15_GPIO,    /* usb detect */
+        GPIO53_GPIO,    /* usb power */
+
+        /* IrDA */
+        GPIO48_GPIO,    /* ir disable */
+        GPIO46_FICP_RXD,
+        GPIO47_FICP_TXD,
+
         /* LCD */
         GPIO58_LCD_LDD_0,
         GPIO59_LCD_LDD_1,
@@ -76,6 +90,7 @@ static unsigned long palmte2_pin_config[] __initdata = {
         GPIO74_LCD_FCLK,
         GPIO75_LCD_LCLK,
         GPIO76_LCD_PCLK,
+        GPIO77_LCD_BIAS,
 
         /* GPIO KEYS */
         GPIO5_GPIO,     /* notes */
@@ -90,6 +105,10 @@ static unsigned long palmte2_pin_config[] __initdata = {
 
         /* MISC */
         GPIO1_RST,      /* reset */
+        GPIO4_GPIO,     /* Hotsync button */
+        GPIO9_GPIO,     /* power detect */
+        GPIO37_GPIO,    /* LCD power */
+        GPIO56_GPIO,    /* Backlight power */
 };
 
 /******************************************************************************
@@ -205,11 +224,53 @@ static struct platform_device palmte2_pxa_keys = {
 /******************************************************************************
  * Backlight
  ******************************************************************************/
+static int palmte2_backlight_init(struct device *dev)
+{
+        int ret;
+
+        ret = gpio_request(GPIO_NR_PALMTE2_BL_POWER, "BL POWER");
+        if (ret)
+                goto err;
+        ret = gpio_direction_output(GPIO_NR_PALMTE2_BL_POWER, 0);
+        if (ret)
+                goto err2;
+        ret = gpio_request(GPIO_NR_PALMTE2_LCD_POWER, "LCD POWER");
+        if (ret)
+                goto err2;
+        ret = gpio_direction_output(GPIO_NR_PALMTE2_LCD_POWER, 0);
+        if (ret)
+                goto err3;
+
+        return 0;
+err3:
+        gpio_free(GPIO_NR_PALMTE2_LCD_POWER);
+err2:
+        gpio_free(GPIO_NR_PALMTE2_BL_POWER);
+err:
+        return ret;
+}
+
+static int palmte2_backlight_notify(int brightness)
+{
+        gpio_set_value(GPIO_NR_PALMTE2_BL_POWER, brightness);
+        gpio_set_value(GPIO_NR_PALMTE2_LCD_POWER, brightness);
+        return brightness;
+}
+
+static void palmte2_backlight_exit(struct device *dev)
+{
+        gpio_free(GPIO_NR_PALMTE2_BL_POWER);
+        gpio_free(GPIO_NR_PALMTE2_LCD_POWER);
+}
+
 static struct platform_pwm_backlight_data palmte2_backlight_data = {
         .pwm_id         = 0,
         .max_brightness = PALMTE2_MAX_INTENSITY,
         .dft_brightness = PALMTE2_MAX_INTENSITY,
         .pwm_period_ns  = PALMTE2_PERIOD_NS,
+        .init           = palmte2_backlight_init,
+        .notify         = palmte2_backlight_notify,
+        .exit           = palmte2_backlight_exit,
 };
 
 static struct platform_device palmte2_backlight = {
@@ -221,6 +282,119 @@ static struct platform_device palmte2_backlight = {
 };
 
 /******************************************************************************
+ * IrDA
+ ******************************************************************************/
+static int palmte2_irda_startup(struct device *dev)
+{
+        int err;
+        err = gpio_request(GPIO_NR_PALMTE2_IR_DISABLE, "IR DISABLE");
+        if (err)
+                goto err;
+        err = gpio_direction_output(GPIO_NR_PALMTE2_IR_DISABLE, 1);
+        if (err)
+                gpio_free(GPIO_NR_PALMTE2_IR_DISABLE);
+err:
+        return err;
+}
+
+static void palmte2_irda_shutdown(struct device *dev)
+{
+        gpio_free(GPIO_NR_PALMTE2_IR_DISABLE);
+}
+
+static void palmte2_irda_transceiver_mode(struct device *dev, int mode)
+{
+        gpio_set_value(GPIO_NR_PALMTE2_IR_DISABLE, mode & IR_OFF);
+        pxa2xx_transceiver_mode(dev, mode);
+}
+
+static struct pxaficp_platform_data palmte2_ficp_platform_data = {
+        .startup                = palmte2_irda_startup,
+        .shutdown               = palmte2_irda_shutdown,
+        .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
+        .transceiver_mode       = palmte2_irda_transceiver_mode,
+};
+
+/******************************************************************************
+ * UDC
+ ******************************************************************************/
+static struct pxa2xx_udc_mach_info palmte2_udc_info __initdata = {
+        .gpio_vbus              = GPIO_NR_PALMTE2_USB_DETECT_N,
+        .gpio_vbus_inverted     = 1,
+        .gpio_pullup            = GPIO_NR_PALMTE2_USB_PULLUP,
+        .gpio_pullup_inverted   = 0,
+};
+
+/******************************************************************************
+ * Power supply
+ ******************************************************************************/
+static int power_supply_init(struct device *dev)
+{
+        int ret;
+
+        ret = gpio_request(GPIO_NR_PALMTE2_POWER_DETECT, "CABLE_STATE_AC");
+        if (ret)
+                goto err1;
+        ret = gpio_direction_input(GPIO_NR_PALMTE2_POWER_DETECT);
+        if (ret)
+                goto err2;
+
+        return 0;
+
+err2:
+        gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
+err1:
+        return ret;
+}
+
+static int palmte2_is_ac_online(void)
+{
+        return gpio_get_value(GPIO_NR_PALMTE2_POWER_DETECT);
+}
+
+static void power_supply_exit(struct device *dev)
+{
+        gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
+}
+
+static char *palmte2_supplicants[] = {
+        "main-battery",
+};
+
+static struct pda_power_pdata power_supply_info = {
+        .init            = power_supply_init,
+        .is_ac_online    = palmte2_is_ac_online,
+        .exit            = power_supply_exit,
+        .supplied_to     = palmte2_supplicants,
+        .num_supplicants = ARRAY_SIZE(palmte2_supplicants),
+};
+
+static struct platform_device power_supply = {
+        .name = "pda-power",
+        .id   = -1,
+        .dev  = {
+                .platform_data = &power_supply_info,
+        },
+};
+
+/******************************************************************************
+ * WM97xx battery
+ ******************************************************************************/
+static struct wm97xx_batt_info wm97xx_batt_pdata = {
+        .batt_aux       = WM97XX_AUX_ID3,
+        .temp_aux       = WM97XX_AUX_ID2,
+        .charge_gpio    = -1,
+        .max_voltage    = PALMTE2_BAT_MAX_VOLTAGE,
+        .min_voltage    = PALMTE2_BAT_MIN_VOLTAGE,
+        .batt_mult      = 1000,
+        .batt_div       = 414,
+        .temp_mult      = 1,
+        .temp_div       = 1,
+        .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
+        .batt_name      = "main-batt",
+};
+
+/******************************************************************************
  * Framebuffer
  ******************************************************************************/
 static struct pxafb_mode_info palmte2_lcd_modes[] = {
@@ -254,15 +428,29 @@ static struct platform_device *devices[] __initdata = {
         &palmte2_pxa_keys,
 #endif
         &palmte2_backlight,
+        &power_supply,
 };
 
+/* setup udc GPIOs initial state */
+static void __init palmte2_udc_init(void)
+{
+        if (!gpio_request(GPIO_NR_PALMTE2_USB_PULLUP, "UDC Vbus")) {
+                gpio_direction_output(GPIO_NR_PALMTE2_USB_PULLUP, 1);
+                gpio_free(GPIO_NR_PALMTE2_USB_PULLUP);
+        }
+}
+
 static void __init palmte2_init(void)
 {
         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmte2_pin_config));
 
         set_pxa_fb_info(&palmte2_lcd_screen);
         pxa_set_mci_info(&palmte2_mci_platform_data);
+        palmte2_udc_init();
+        pxa_set_udc_info(&palmte2_udc_info);
         pxa_set_ac97_info(NULL);
+        pxa_set_ficp_info(&palmte2_ficp_platform_data);
+        wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 
         platform_add_devices(devices, ARRAY_SIZE(devices));
 }