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Commit 8c8aa5fa authored by Marek Vasut's avatar Marek Vasut Committed by Eric Miao
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[ARM] pxa: PalmTE2 support for battery, UDC, IrDA and backlight 



Signed-off-by: default avatarMarek Vasut <marek.vasut@gmail.com>
Signed-off-by: default avatarEric Miao <eric.miao@marvell.com>
parent 54088bf5

arch/arm/mach-pxa/include/mach/palmte2.h

+25 −0
Original line number Diff line number Diff line
@@ -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

arch/arm/mach-pxa/palmte2.c

+188 −0
Original line number Diff line number Diff line
@@ -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 = {
@@ -220,6 +281,119 @@ 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

 ******************************************************************************/
@@ -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));

}