Merge branch 'pxa-palm' into pxa-machines

Conflicts:

	drivers/mfd/Kconfig
	drivers/pcmcia/Makefile

MAINTAINERS

@@ -623,6 +623,12 @@ M:	marek.vasut@gmail.com
 W:	http://hackndev.com
 S:	Maintained
 
+ARM/PALMZ72 SUPPORT
+P:     Sergey Lapin
+M:     slapin@ossfans.org
+W:     http://hackndev.com
+S:     Maintained
+
 ARM/PLEB SUPPORT
 P:	Peter Chubb
 M:	pleb@gelato.unsw.edu.au

arch/arm/mach-pxa/Kconfig

@@ -288,6 +288,16 @@ config MACH_PALMTX
 	  Say Y here if you intend to run this kernel on a Palm T|X
 	  handheld computer.
 
+config MACH_PALMZ72
+	bool "Palm Zire 72"
+	default y
+	depends on ARCH_PXA_PALM
+	select PXA27x
+	select IWMMXT
+	help
+	  Say Y here if you intend to run this kernel on Palm Zire 72
+	  handheld computer.
+
 config MACH_PCM990_BASEBOARD
 	bool "PHYTEC PCM-990 development board"
 	select HAVE_PWM

arch/arm/mach-pxa/Makefile

@@ -45,6 +45,7 @@ obj-$(CONFIG_MACH_E750)		+= e750_lcd.o
 obj-$(CONFIG_MACH_E400)		+= e400_lcd.o
 obj-$(CONFIG_MACH_E800)		+= e800_lcd.o
 obj-$(CONFIG_MACH_PALMTX)	+= palmtx.o
+obj-$(CONFIG_MACH_PALMZ72)	+= palmz72.o
 
 ifeq ($(CONFIG_MACH_ZYLONITE),y)
   obj-y				+= zylonite.o

arch/arm/mach-pxa/include/mach/palmz72.h

+/*
+ * GPIOs and interrupts for Palm Zire72 Handheld Computer
+ *
+ * Authors:	Alex Osborne <bobofdoom@gmail.com>
+ *		Jan Herman <2hp@seznam.cz>
+ *		Sergey Lapin <slapin@ossfans.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef _INCLUDE_PALMZ72_H_
+#define _INCLUDE_PALMZ72_H_
+
+/* Power and control */
+#define GPIO_NR_PALMZ72_GPIO_RESET		1
+#define GPIO_NR_PALMZ72_POWER_DETECT		0
+
+/* SD/MMC */
+#define GPIO_NR_PALMZ72_SD_DETECT_N		14
+#define GPIO_NR_PALMZ72_SD_POWER_N		98
+#define GPIO_NR_PALMZ72_SD_RO 115
+
+/* Touchscreen */
+#define GPIO_NR_PALMZ72_WM9712_IRQ		27
+
+/* IRDA -  disable GPIO connected to SD pin of tranceiver (TFBS4710?) ? */
+#define GPIO_NR_PALMZ72_IR_DISABLE		49
+
+/* USB */
+#define GPIO_NR_PALMZ72_USB_DETECT_N		15
+#define GPIO_NR_PALMZ72_USB_POWER		95
+#define GPIO_NR_PALMZ72_USB_PULLUP		12
+
+/* LCD/Backlight */
+#define GPIO_NR_PALMZ72_BL_POWER		20
+#define GPIO_NR_PALMZ72_LCD_POWER		96
+
+/* LED */
+#define GPIO_NR_PALMZ72_LED_GREEN		88
+
+/* Bluetooth */
+#define GPIO_NR_PALMZ72_BT_POWER		17
+#define GPIO_NR_PALMZ72_BT_RESET		83
+
+/** Initial values **/
+
+/* Battery */
+#define PALMZ72_BAT_MAX_VOLTAGE		4000	/* 4.00v current voltage */
+#define PALMZ72_BAT_MIN_VOLTAGE		3550	/* 3.55v critical voltage */
+#define PALMZ72_BAT_MAX_CURRENT		0	/* unknokn */
+#define PALMZ72_BAT_MIN_CURRENT		0	/* unknown */
+#define PALMZ72_BAT_MAX_CHARGE		1	/* unknown */
+#define PALMZ72_BAT_MIN_CHARGE		1	/* unknown */
+#define PALMZ72_MAX_LIFE_MINS		360	/* on-life in minutes */
+
+/* Backlight */
+#define PALMZ72_MAX_INTENSITY		0xFE
+#define PALMZ72_DEFAULT_INTENSITY	0x7E
+#define PALMZ72_LIMIT_MASK		0x7F
+#define PALMZ72_PRESCALER		0x3F
+#define PALMZ72_PERIOD_NS		3500
+
+#endif
+

arch/arm/mach-pxa/palmtx.c

@@ -25,6 +25,8 @@
 #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>
@@ -339,6 +341,23 @@ static struct platform_device power_supply = {
 	},
 };
 
+/******************************************************************************
+ * 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	= PALMTX_BAT_MAX_VOLTAGE,
+	.min_voltage	= PALMTX_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
  ******************************************************************************/
@@ -401,6 +420,7 @@ static void __init palmtx_init(void)
 	pxa_set_ac97_info(NULL);
 	pxa_set_ficp_info(&palmtx_ficp_platform_data);
 	pxa_set_keypad_info(&palmtx_keypad_platform_data);
+	wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 
 	platform_add_devices(devices, ARRAY_SIZE(devices));
 }

drivers/input/touchscreen/Kconfig

@@ -220,6 +220,7 @@ config TOUCHSCREEN_ATMEL_TSADCC
 config TOUCHSCREEN_UCB1400
 	tristate "Philips UCB1400 touchscreen"
 	select AC97_BUS
+	depends on UCB1400_CORE
 	help
 	  This enables support for the Philips UCB1400 touchscreen interface.
 	  The UCB1400 is an AC97 audio codec.  The touchscreen interface

drivers/mfd/Kconfig

@@ -50,6 +50,15 @@ config HTC_PASIC3
 	  HTC Magician devices, respectively. Actual functionality is
 	  handled by the leds-pasic3 and ds1wm drivers.
 
+config UCB1400_CORE
+	tristate "Philips UCB1400 Core driver"
+	help
+	  This enables support for the Philips UCB1400 core functions.
+	  The UCB1400 is an AC97 audio codec.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ucb1400_core.
+
 config MFD_TMIO
 	bool
 	default n

drivers/mfd/Makefile

@@ -22,3 +22,4 @@ obj-$(CONFIG_MCP_UCB1200_TS)	+= ucb1x00-ts.o
 ifeq ($(CONFIG_SA1100_ASSABET),y)
 obj-$(CONFIG_MCP_UCB1200)	+= ucb1x00-assabet.o
 endif
+obj-$(CONFIG_UCB1400_CORE)	+= ucb1400_core.o

drivers/mfd/ucb1400_core.c

+/*
+ * Core functions for:
+ *  Philips UCB1400 multifunction chip
+ *
+ * Based on ucb1400_ts.c:
+ *  Author:	Nicolas Pitre
+ *  Created:	September 25, 2006
+ *  Copyright:	MontaVista Software, Inc.
+ *
+ * Spliting done by: Marek Vasut <marek.vasut@gmail.com>
+ * If something doesnt work and it worked before spliting, e-mail me,
+ * dont bother Nicolas please ;-)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This code is heavily based on ucb1x00-*.c copyrighted by Russell King
+ * covering the UCB1100, UCB1200 and UCB1300..  Support for the UCB1400 has
+ * been made separate from ucb1x00-core/ucb1x00-ts on Russell's request.
+ */
+
+#include <linux/module.h>
+#include <linux/ucb1400.h>
+
+static int ucb1400_core_probe(struct device *dev)
+{
+	int err;
+	struct ucb1400 *ucb;
+	struct ucb1400_ts ucb_ts;
+	struct snd_ac97 *ac97;
+
+	memset(&ucb_ts, 0, sizeof(ucb_ts));
+
+	ucb = kzalloc(sizeof(struct ucb1400), GFP_KERNEL);
+	if (!ucb) {
+		err = -ENOMEM;
+		goto err;
+	}
+
+	dev_set_drvdata(dev, ucb);
+
+	ac97 = to_ac97_t(dev);
+
+	ucb_ts.id = ucb1400_reg_read(ac97, UCB_ID);
+	if (ucb_ts.id != UCB_ID_1400) {
+		err = -ENODEV;
+		goto err0;
+	}
+
+	/* TOUCHSCREEN */
+	ucb_ts.ac97 = ac97;
+	ucb->ucb1400_ts = platform_device_alloc("ucb1400_ts", -1);
+	if (!ucb->ucb1400_ts) {
+		err = -ENOMEM;
+		goto err0;
+	}
+	err = platform_device_add_data(ucb->ucb1400_ts, &ucb_ts,
+					sizeof(ucb_ts));
+	if (err)
+		goto err1;
+	err = platform_device_add(ucb->ucb1400_ts);
+	if (err)
+		goto err1;
+
+	return 0;
+
+err1:
+	platform_device_put(ucb->ucb1400_ts);
+err0:
+	kfree(ucb);
+err:
+	return err;
+}
+
+static int ucb1400_core_remove(struct device *dev)
+{
+	struct ucb1400 *ucb = dev_get_drvdata(dev);
+
+	platform_device_unregister(ucb->ucb1400_ts);
+	kfree(ucb);
+	return 0;
+}
+
+static struct device_driver ucb1400_core_driver = {
+	.name	= "ucb1400_core",
+	.bus	= &ac97_bus_type,
+	.probe	= ucb1400_core_probe,
+	.remove	= ucb1400_core_remove,
+};
+
+static int __init ucb1400_core_init(void)
+{
+	return driver_register(&ucb1400_core_driver);
+}
+
+static void __exit ucb1400_core_exit(void)
+{
+	driver_unregister(&ucb1400_core_driver);
+}
+
+module_init(ucb1400_core_init);
+module_exit(ucb1400_core_exit);
+
+MODULE_DESCRIPTION("Philips UCB1400 driver");
+MODULE_LICENSE("GPL");

drivers/pcmcia/Makefile

@@ -73,5 +73,6 @@ pxa2xx_cs-$(CONFIG_MACH_MAINSTONE)		+= pxa2xx_mainstone.o
 pxa2xx_cs-$(CONFIG_PXA_SHARPSL)			+= pxa2xx_sharpsl.o
 pxa2xx_cs-$(CONFIG_MACH_ARMCORE)		+= pxa2xx_cm_x2xx.o pxa2xx_cm_x255.o pxa2xx_cm_x270.o
 pxa2xx_cs-$(CONFIG_TRIZEPS_PCMCIA)		+= pxa2xx_trizeps.o
-pxa2xx_cs-$(CONFIG_MACH_PALMTX)		+= pxa2xx_palmtx.o
+pxa2xx_cs-$(CONFIG_MACH_PALMTX)			+= pxa2xx_palmtx.o
+pxa2xx_cs-$(CONFIG_MACH_PALMLD)			+= pxa2xx_palmld.o
 

drivers/pcmcia/pxa2xx_palmld.c

+/*
+ * linux/drivers/pcmcia/pxa2xx_palmld.c
+ *
+ * Driver for Palm LifeDrive PCMCIA
+ *
+ * Copyright (C) 2006 Alex Osborne <ato@meshy.org>
+ * Copyright (C) 2007-2008 Marek Vasut <marek.vasut@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+
+#include <asm/mach-types.h>
+#include <mach/palmld.h>
+#include "soc_common.h"
+
+static int palmld_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
+{
+	int ret;
+
+	ret = gpio_request(GPIO_NR_PALMLD_PCMCIA_POWER, "PCMCIA PWR");
+	if (ret)
+		goto err1;
+	ret = gpio_direction_output(GPIO_NR_PALMLD_PCMCIA_POWER, 0);
+	if (ret)
+		goto err2;
+
+	ret = gpio_request(GPIO_NR_PALMLD_PCMCIA_RESET, "PCMCIA RST");
+	if (ret)
+		goto err2;
+	ret = gpio_direction_output(GPIO_NR_PALMLD_PCMCIA_RESET, 1);
+	if (ret)
+		goto err3;
+
+	ret = gpio_request(GPIO_NR_PALMLD_PCMCIA_READY, "PCMCIA RDY");
+	if (ret)
+		goto err3;
+	ret = gpio_direction_input(GPIO_NR_PALMLD_PCMCIA_READY);
+	if (ret)
+		goto err4;
+
+	skt->irq = IRQ_GPIO(GPIO_NR_PALMLD_PCMCIA_READY);
+	return 0;
+
+err4:
+	gpio_free(GPIO_NR_PALMLD_PCMCIA_READY);
+err3:
+	gpio_free(GPIO_NR_PALMLD_PCMCIA_RESET);
+err2:
+	gpio_free(GPIO_NR_PALMLD_PCMCIA_POWER);
+err1:
+	return ret;
+}
+
+static void palmld_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
+{
+	gpio_free(GPIO_NR_PALMLD_PCMCIA_READY);
+	gpio_free(GPIO_NR_PALMLD_PCMCIA_RESET);
+	gpio_free(GPIO_NR_PALMLD_PCMCIA_POWER);
+}
+
+static void palmld_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
+					struct pcmcia_state *state)
+{
+	state->detect = 1; /* always inserted */
+	state->ready  = !!gpio_get_value(GPIO_NR_PALMLD_PCMCIA_READY);
+	state->bvd1   = 1;
+	state->bvd2   = 1;
+	state->wrprot = 0;
+	state->vs_3v  = 1;
+	state->vs_Xv  = 0;
+}
+
+static int palmld_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
+					const socket_state_t *state)
+{
+	gpio_set_value(GPIO_NR_PALMLD_PCMCIA_POWER, 1);
+	gpio_set_value(GPIO_NR_PALMLD_PCMCIA_RESET,
+			!!(state->flags & SS_RESET));
+
+	return 0;
+}
+
+static void palmld_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
+{
+}
+
+static void palmld_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
+{
+}
+
+static struct pcmcia_low_level palmld_pcmcia_ops = {
+	.owner			= THIS_MODULE,
+
+	.first			= 0,
+	.nr			= 2,
+
+	.hw_init		= palmld_pcmcia_hw_init,
+	.hw_shutdown		= palmld_pcmcia_hw_shutdown,
+
+	.socket_state		= palmld_pcmcia_socket_state,
+	.configure_socket	= palmld_pcmcia_configure_socket,
+
+	.socket_init		= palmld_pcmcia_socket_init,
+	.socket_suspend		= palmld_pcmcia_socket_suspend,
+};
+
+static struct platform_device *palmld_pcmcia_device;
+
+static int __init palmld_pcmcia_init(void)
+{
+	int ret;
+
+	if (!machine_is_palmld())
+		return -ENODEV;
+
+	palmld_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
+	if (!palmld_pcmcia_device)
+		return -ENOMEM;
+
+	ret = platform_device_add_data(palmld_pcmcia_device, &palmld_pcmcia_ops,
+					sizeof(palmld_pcmcia_ops));
+
+	if (!ret)
+		ret = platform_device_add(palmld_pcmcia_device);
+
+	if (ret)
+		platform_device_put(palmld_pcmcia_device);
+
+	return ret;
+}
+
+static void __exit palmld_pcmcia_exit(void)
+{
+	platform_device_unregister(palmld_pcmcia_device);
+}
+
+module_init(palmld_pcmcia_init);
+module_exit(palmld_pcmcia_exit);
+
+MODULE_AUTHOR("Alex Osborne <ato@meshy.org>,"
+	    " Marek Vasut <marek.vasut@gmail.com>");
+MODULE_DESCRIPTION("PCMCIA support for Palm LifeDrive");
+MODULE_ALIAS("platform:pxa2xx-pcmcia");
+MODULE_LICENSE("GPL");

drivers/power/Kconfig

@@ -56,10 +56,10 @@ config BATTERY_TOSA
 	  Say Y to enable support for the battery on the Sharp Zaurus
 	  SL-6000 (tosa) models.
 
-config BATTERY_PALMTX
-	tristate "Palm T|X battery"
-	depends on MACH_PALMTX
+config BATTERY_WM97XX
+	bool "WM97xx generic battery driver"
+	depends on TOUCHSCREEN_WM97XX
 	help
-	  Say Y to enable support for the battery in Palm T|X.
+	  Say Y to enable support for battery measured by WM97xx aux port.
 
 endif # POWER_SUPPLY

drivers/power/Makefile

@@ -21,4 +21,4 @@ obj-$(CONFIG_BATTERY_DS2760)	+= ds2760_battery.o
 obj-$(CONFIG_BATTERY_PMU)	+= pmu_battery.o
 obj-$(CONFIG_BATTERY_OLPC)	+= olpc_battery.o
 obj-$(CONFIG_BATTERY_TOSA)	+= tosa_battery.o
-obj-$(CONFIG_BATTERY_PALMTX)	+= palmtx_battery.o
+obj-$(CONFIG_BATTERY_WM97XX)	+= wm97xx_battery.o
\ No newline at end of file

drivers/power/palmtx_battery.c

-/*
- * linux/drivers/power/palmtx_battery.c
- *
- * Battery measurement code for Palm T|X Handheld computer
- *
- * based on tosa_battery.c
- *
- * Copyright (C) 2008 Marek Vasut <marek.vasut@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/power_supply.h>
-#include <linux/wm97xx.h>
-#include <linux/delay.h>
-#include <linux/spinlock.h>
-#include <linux/interrupt.h>
-#include <linux/gpio.h>
-
-#include <asm/mach-types.h>
-#include <mach/palmtx.h>
-
-static DEFINE_MUTEX(bat_lock);
-static struct work_struct bat_work;
-struct mutex work_lock;
-int bat_status = POWER_SUPPLY_STATUS_DISCHARGING;
-
-static unsigned long palmtx_read_bat(struct power_supply *bat_ps)
-{
-	return wm97xx_read_aux_adc(bat_ps->dev->parent->driver_data,
-				    WM97XX_AUX_ID3) * 1000 / 414;
-}
-
-static unsigned long palmtx_read_temp(struct power_supply *bat_ps)
-{
-	return wm97xx_read_aux_adc(bat_ps->dev->parent->driver_data,
-				    WM97XX_AUX_ID2);
-}
-
-static int palmtx_bat_get_property(struct power_supply *bat_ps,
-			    enum power_supply_property psp,
-			    union power_supply_propval *val)
-{
-	switch (psp) {
-	case POWER_SUPPLY_PROP_STATUS:
-		val->intval = bat_status;
-		break;
-	case POWER_SUPPLY_PROP_TECHNOLOGY:
-		val->intval = POWER_SUPPLY_TECHNOLOGY_LIPO;
-		break;
-	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
-		val->intval = palmtx_read_bat(bat_ps);
-		break;
-	case POWER_SUPPLY_PROP_VOLTAGE_MAX:
-	case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
-		val->intval = PALMTX_BAT_MAX_VOLTAGE;
-		break;
-	case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
-		val->intval = PALMTX_BAT_MIN_VOLTAGE;
-		break;
-	case POWER_SUPPLY_PROP_TEMP:
-		val->intval = palmtx_read_temp(bat_ps);
-		break;
-	case POWER_SUPPLY_PROP_PRESENT:
-		val->intval = 1;
-		break;
-	default:
-		return -EINVAL;
-	}
-	return 0;
-}
-
-static void palmtx_bat_external_power_changed(struct power_supply *bat_ps)
-{
-	schedule_work(&bat_work);
-}
-
-static char *status_text[] = {
-	[POWER_SUPPLY_STATUS_UNKNOWN] =		"Unknown",
-	[POWER_SUPPLY_STATUS_CHARGING] =	"Charging",
-	[POWER_SUPPLY_STATUS_DISCHARGING] =	"Discharging",
-};
-
-static void palmtx_bat_update(struct power_supply *bat_ps)
-{
-	int old_status = bat_status;
-
-	mutex_lock(&work_lock);
-
-	bat_status = gpio_get_value(GPIO_NR_PALMTX_POWER_DETECT) ?
-				    POWER_SUPPLY_STATUS_CHARGING :
-				    POWER_SUPPLY_STATUS_DISCHARGING;
-
-	if (old_status != bat_status) {
-		pr_debug("%s %s -> %s\n", bat_ps->name,
-				status_text[old_status],
-				status_text[bat_status]);
-		power_supply_changed(bat_ps);
-	}
-
-	mutex_unlock(&work_lock);
-}
-
-static enum power_supply_property palmtx_bat_main_props[] = {
-	POWER_SUPPLY_PROP_STATUS,
-	POWER_SUPPLY_PROP_TECHNOLOGY,
-	POWER_SUPPLY_PROP_VOLTAGE_NOW,
-	POWER_SUPPLY_PROP_VOLTAGE_MAX,
-	POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
-	POWER_SUPPLY_PROP_TEMP,
-	POWER_SUPPLY_PROP_PRESENT,
-};
-
-struct power_supply bat_ps = {
-	.name			= "main-battery",
-	.type			= POWER_SUPPLY_TYPE_BATTERY,
-	.properties		= palmtx_bat_main_props,
-	.num_properties		= ARRAY_SIZE(palmtx_bat_main_props),
-	.get_property		= palmtx_bat_get_property,
-	.external_power_changed = palmtx_bat_external_power_changed,
-	.use_for_apm		= 1,
-};
-
-static void palmtx_bat_work(struct work_struct *work)
-{
-	palmtx_bat_update(&bat_ps);
-}
-
-#ifdef CONFIG_PM
-static int palmtx_bat_suspend(struct platform_device *dev, pm_message_t state)
-{
-	flush_scheduled_work();
-	return 0;
-}
-
-static int palmtx_bat_resume(struct platform_device *dev)
-{
-	schedule_work(&bat_work);
-	return 0;
-}
-#else
-#define palmtx_bat_suspend NULL
-#define palmtx_bat_resume NULL
-#endif
-
-static int __devinit palmtx_bat_probe(struct platform_device *dev)
-{
-	int ret = 0;
-
-	if (!machine_is_palmtx())
-		return -ENODEV;
-
-	mutex_init(&work_lock);
-
-	INIT_WORK(&bat_work, palmtx_bat_work);
-
-	ret = power_supply_register(&dev->dev, &bat_ps);
-	if (!ret)
-		schedule_work(&bat_work);
-
-	return ret;
-}
-
-static int __devexit palmtx_bat_remove(struct platform_device *dev)
-{
-	power_supply_unregister(&bat_ps);
-	return 0;
-}
-
-static struct platform_driver palmtx_bat_driver = {
-	.driver.name	= "wm97xx-battery",
-	.driver.owner	= THIS_MODULE,
-	.probe		= palmtx_bat_probe,
-	.remove		= __devexit_p(palmtx_bat_remove),
-	.suspend	= palmtx_bat_suspend,
-	.resume		= palmtx_bat_resume,
-};
-
-static int __init palmtx_bat_init(void)
-{
-	return platform_driver_register(&palmtx_bat_driver);
-}
-
-static void __exit palmtx_bat_exit(void)
-{
-	platform_driver_unregister(&palmtx_bat_driver);
-}
-
-module_init(palmtx_bat_init);
-module_exit(palmtx_bat_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
-MODULE_DESCRIPTION("Palm T|X battery driver");

drivers/power/wm97xx_battery.c

+/*
+ * linux/drivers/power/wm97xx_battery.c
+ *
+ * Battery measurement code for WM97xx
+ *
+ * based on tosa_battery.c
+ *
+ * Copyright (C) 2008 Marek Vasut <marek.vasut@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/power_supply.h>
+#include <linux/wm97xx.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/gpio.h>
+#include <linux/wm97xx_batt.h>
+
+static DEFINE_MUTEX(bat_lock);
+static struct work_struct bat_work;
+struct mutex work_lock;
+static int bat_status = POWER_SUPPLY_STATUS_UNKNOWN;
+static struct wm97xx_batt_info *pdata;
+static enum power_supply_property *prop;
+
+static unsigned long wm97xx_read_bat(struct power_supply *bat_ps)
+{
+	return wm97xx_read_aux_adc(bat_ps->dev->parent->driver_data,
+					pdata->batt_aux) * pdata->batt_mult /
+					pdata->batt_div;
+}
+
+static unsigned long wm97xx_read_temp(struct power_supply *bat_ps)
+{
+	return wm97xx_read_aux_adc(bat_ps->dev->parent->driver_data,
+					pdata->temp_aux) * pdata->temp_mult /
+					pdata->temp_div;
+}
+
+static int wm97xx_bat_get_property(struct power_supply *bat_ps,
+			    enum power_supply_property psp,
+			    union power_supply_propval *val)
+{
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+		val->intval = bat_status;
+		break;
+	case POWER_SUPPLY_PROP_TECHNOLOGY:
+		val->intval = pdata->batt_tech;
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+		if (pdata->batt_aux >= 0)
+			val->intval = wm97xx_read_bat(bat_ps);
+		else
+			return -EINVAL;
+		break;
+	case POWER_SUPPLY_PROP_TEMP:
+		if (pdata->temp_aux >= 0)
+			val->intval = wm97xx_read_temp(bat_ps);
+		else
+			return -EINVAL;
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_MAX:
+		if (pdata->max_voltage >= 0)
+			val->intval = pdata->max_voltage;
+		else
+			return -EINVAL;
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_MIN:
+		if (pdata->min_voltage >= 0)
+			val->intval = pdata->min_voltage;
+		else
+			return -EINVAL;
+		break;
+	case POWER_SUPPLY_PROP_PRESENT:
+		val->intval = 1;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static void wm97xx_bat_external_power_changed(struct power_supply *bat_ps)
+{
+	schedule_work(&bat_work);
+}
+
+static void wm97xx_bat_update(struct power_supply *bat_ps)
+{
+	int old_status = bat_status;
+
+	mutex_lock(&work_lock);
+
+	bat_status = (pdata->charge_gpio >= 0) ?
+			(gpio_get_value(pdata->charge_gpio) ?
+			POWER_SUPPLY_STATUS_DISCHARGING :
+			POWER_SUPPLY_STATUS_CHARGING) :
+			POWER_SUPPLY_STATUS_UNKNOWN;
+
+	if (old_status != bat_status) {
+		pr_debug("%s: %i -> %i\n", bat_ps->name, old_status,
+					bat_status);
+		power_supply_changed(bat_ps);
+	}
+
+	mutex_unlock(&work_lock);
+}
+
+static struct power_supply bat_ps = {
+	.type			= POWER_SUPPLY_TYPE_BATTERY,
+	.get_property		= wm97xx_bat_get_property,
+	.external_power_changed = wm97xx_bat_external_power_changed,
+	.use_for_apm		= 1,
+};
+
+static void wm97xx_bat_work(struct work_struct *work)
+{
+	wm97xx_bat_update(&bat_ps);
+}
+
+#ifdef CONFIG_PM
+static int wm97xx_bat_suspend(struct platform_device *dev, pm_message_t state)
+{
+	flush_scheduled_work();
+	return 0;
+}
+
+static int wm97xx_bat_resume(struct platform_device *dev)
+{
+	schedule_work(&bat_work);
+	return 0;
+}
+#else
+#define wm97xx_bat_suspend NULL
+#define wm97xx_bat_resume NULL
+#endif
+
+static int __devinit wm97xx_bat_probe(struct platform_device *dev)
+{
+	int ret = 0;
+	int props = 1;	/* POWER_SUPPLY_PROP_PRESENT */
+	int i = 0;
+
+	if (dev->id != -1)
+		return -EINVAL;
+
+	mutex_init(&work_lock);
+
+	if (!pdata) {
+		dev_err(&dev->dev, "Please use wm97xx_bat_set_pdata\n");
+		return -EINVAL;
+	}
+
+	if (pdata->charge_gpio >= 0 && gpio_is_valid(pdata->charge_gpio)) {
+		ret = gpio_request(pdata->charge_gpio, "BATT CHRG");
+		if (ret)
+			goto err;
+		ret = gpio_direction_input(pdata->charge_gpio);
+		if (ret)
+			goto err2;
+		props++;	/* POWER_SUPPLY_PROP_STATUS */
+	}
+
+	if (pdata->batt_tech >= 0)
+		props++;	/* POWER_SUPPLY_PROP_TECHNOLOGY */
+	if (pdata->temp_aux >= 0)
+		props++;	/* POWER_SUPPLY_PROP_TEMP */
+	if (pdata->batt_aux >= 0)
+		props++;	/* POWER_SUPPLY_PROP_VOLTAGE_NOW */
+	if (pdata->max_voltage >= 0)
+		props++;	/* POWER_SUPPLY_PROP_VOLTAGE_MAX */
+	if (pdata->min_voltage >= 0)
+		props++;	/* POWER_SUPPLY_PROP_VOLTAGE_MIN */
+
+	prop = kzalloc(props * sizeof(*prop), GFP_KERNEL);
+	if (!prop)
+		goto err2;
+
+	prop[i++] = POWER_SUPPLY_PROP_PRESENT;
+	if (pdata->charge_gpio >= 0)
+		prop[i++] = POWER_SUPPLY_PROP_STATUS;
+	if (pdata->batt_tech >= 0)
+		prop[i++] = POWER_SUPPLY_PROP_TECHNOLOGY;
+	if (pdata->temp_aux >= 0)
+		prop[i++] = POWER_SUPPLY_PROP_TEMP;
+	if (pdata->batt_aux >= 0)
+		prop[i++] = POWER_SUPPLY_PROP_VOLTAGE_NOW;
+	if (pdata->max_voltage >= 0)
+		prop[i++] = POWER_SUPPLY_PROP_VOLTAGE_MAX;
+	if (pdata->min_voltage >= 0)
+		prop[i++] = POWER_SUPPLY_PROP_VOLTAGE_MIN;
+
+	INIT_WORK(&bat_work, wm97xx_bat_work);
+
+	if (!pdata->batt_name) {
+		dev_info(&dev->dev, "Please consider setting proper battery "
+				"name in platform definition file, falling "
+				"back to name \"wm97xx-batt\"\n");
+		bat_ps.name = "wm97xx-batt";
+	} else
+		bat_ps.name = pdata->batt_name;
+
+	bat_ps.properties = prop;
+	bat_ps.num_properties = props;
+
+	ret = power_supply_register(&dev->dev, &bat_ps);
+	if (!ret)
+		schedule_work(&bat_work);
+	else
+		goto err3;
+
+	return 0;
+err3:
+	kfree(prop);
+err2:
+	gpio_free(pdata->charge_gpio);
+err:
+	return ret;
+}
+
+static int __devexit wm97xx_bat_remove(struct platform_device *dev)
+{
+	if (pdata && pdata->charge_gpio && pdata->charge_gpio >= 0)
+		gpio_free(pdata->charge_gpio);
+	flush_scheduled_work();
+	power_supply_unregister(&bat_ps);
+	kfree(prop);
+	return 0;
+}
+
+static struct platform_driver wm97xx_bat_driver = {
+	.driver	= {
+		.name	= "wm97xx-battery",
+		.owner	= THIS_MODULE,
+	},
+	.probe		= wm97xx_bat_probe,
+	.remove		= __devexit_p(wm97xx_bat_remove),
+	.suspend	= wm97xx_bat_suspend,
+	.resume		= wm97xx_bat_resume,
+};
+
+static int __init wm97xx_bat_init(void)
+{
+	return platform_driver_register(&wm97xx_bat_driver);
+}
+
+static void __exit wm97xx_bat_exit(void)
+{
+	platform_driver_unregister(&wm97xx_bat_driver);
+}
+
+void __init wm97xx_bat_set_pdata(struct wm97xx_batt_info *data)
+{
+	pdata = data;
+}
+EXPORT_SYMBOL_GPL(wm97xx_bat_set_pdata);
+
+module_init(wm97xx_bat_init);
+module_exit(wm97xx_bat_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
+MODULE_DESCRIPTION("WM97xx battery driver");

include/linux/ucb1400.h

+/*
+ * Register definitions and functions for:
+ *  Philips UCB1400 driver
+ *
+ * Based on ucb1400_ts:
+ *  Author:	Nicolas Pitre
+ *  Created:	September 25, 2006
+ *  Copyright:	MontaVista Software, Inc.
+ *
+ * Spliting done by: Marek Vasut <marek.vasut@gmail.com>
+ * If something doesnt work and it worked before spliting, e-mail me,
+ * dont bother Nicolas please ;-)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This code is heavily based on ucb1x00-*.c copyrighted by Russell King
+ * covering the UCB1100, UCB1200 and UCB1300..  Support for the UCB1400 has
+ * been made separate from ucb1x00-core/ucb1x00-ts on Russell's request.
+ */
+
+#ifndef _LINUX__UCB1400_H
+#define _LINUX__UCB1400_H
+
+#include <sound/ac97_codec.h>
+#include <linux/mutex.h>
+#include <linux/platform_device.h>
+
+/*
+ * UCB1400 AC-link registers
+ */
+
+#define UCB_IO_DATA		0x5a
+#define UCB_IO_DIR		0x5c
+#define UCB_IE_RIS		0x5e
+#define UCB_IE_FAL		0x60
+#define UCB_IE_STATUS		0x62
+#define UCB_IE_CLEAR		0x62
+#define UCB_IE_ADC		(1 << 11)
+#define UCB_IE_TSPX		(1 << 12)
+
+#define UCB_TS_CR		0x64
+#define UCB_TS_CR_TSMX_POW	(1 << 0)
+#define UCB_TS_CR_TSPX_POW	(1 << 1)
+#define UCB_TS_CR_TSMY_POW	(1 << 2)
+#define UCB_TS_CR_TSPY_POW	(1 << 3)
+#define UCB_TS_CR_TSMX_GND	(1 << 4)
+#define UCB_TS_CR_TSPX_GND	(1 << 5)
+#define UCB_TS_CR_TSMY_GND	(1 << 6)
+#define UCB_TS_CR_TSPY_GND	(1 << 7)
+#define UCB_TS_CR_MODE_INT	(0 << 8)
+#define UCB_TS_CR_MODE_PRES	(1 << 8)
+#define UCB_TS_CR_MODE_POS	(2 << 8)
+#define UCB_TS_CR_BIAS_ENA	(1 << 11)
+#define UCB_TS_CR_TSPX_LOW	(1 << 12)
+#define UCB_TS_CR_TSMX_LOW	(1 << 13)
+
+#define UCB_ADC_CR		0x66
+#define UCB_ADC_SYNC_ENA	(1 << 0)
+#define UCB_ADC_VREFBYP_CON	(1 << 1)
+#define UCB_ADC_INP_TSPX	(0 << 2)
+#define UCB_ADC_INP_TSMX	(1 << 2)
+#define UCB_ADC_INP_TSPY	(2 << 2)
+#define UCB_ADC_INP_TSMY	(3 << 2)
+#define UCB_ADC_INP_AD0		(4 << 2)
+#define UCB_ADC_INP_AD1		(5 << 2)
+#define UCB_ADC_INP_AD2		(6 << 2)
+#define UCB_ADC_INP_AD3		(7 << 2)
+#define UCB_ADC_EXT_REF		(1 << 5)
+#define UCB_ADC_START		(1 << 7)
+#define UCB_ADC_ENA		(1 << 15)
+
+#define UCB_ADC_DATA		0x68
+#define UCB_ADC_DAT_VALID	(1 << 15)
+#define UCB_ADC_DAT_MASK	0x3ff
+
+#define UCB_ID			0x7e
+#define UCB_ID_1400             0x4304
+
+struct ucb1400_ts {
+	struct input_dev	*ts_idev;
+	struct task_struct	*ts_task;
+	int			id;
+	wait_queue_head_t	ts_wait;
+	unsigned int		ts_restart:1;
+	int			irq;
+	unsigned int		irq_pending;	/* not bit field shared */
+	struct snd_ac97		*ac97;
+};
+
+struct ucb1400 {
+	struct platform_device	*ucb1400_ts;
+};
+
+static inline u16 ucb1400_reg_read(struct snd_ac97 *ac97, u16 reg)
+{
+	return ac97->bus->ops->read(ac97, reg);
+}
+
+static inline void ucb1400_reg_write(struct snd_ac97 *ac97, u16 reg, u16 val)
+{
+	ac97->bus->ops->write(ac97, reg, val);
+}
+
+static inline u16 ucb1400_gpio_get_value(struct snd_ac97 *ac97, u16 gpio)
+{
+	return ucb1400_reg_read(ac97, UCB_IO_DATA) & (1 << gpio);
+}
+
+static inline void ucb1400_gpio_set_value(struct snd_ac97 *ac97, u16 gpio,
+						u16 val)
+{
+	ucb1400_reg_write(ac97, UCB_IO_DATA, val ?
+			ucb1400_reg_read(ac97, UCB_IO_DATA) | (1 << gpio) :
+			ucb1400_reg_read(ac97, UCB_IO_DATA) & ~(1 << gpio));
+}
+
+static inline u16 ucb1400_gpio_get_direction(struct snd_ac97 *ac97, u16 gpio)
+{
+	return ucb1400_reg_read(ac97, UCB_IO_DIR) & (1 << gpio);
+}
+
+static inline void ucb1400_gpio_set_direction(struct snd_ac97 *ac97, u16 gpio,
+						u16 dir)
+{
+	ucb1400_reg_write(ac97, UCB_IO_DIR, dir ?
+			ucb1400_reg_read(ac97, UCB_IO_DIR) | (1 << gpio) :
+			ucb1400_reg_read(ac97, UCB_IO_DIR) & ~(1 << gpio));
+}
+
+static inline void ucb1400_adc_enable(struct snd_ac97 *ac97)
+{
+	ucb1400_reg_write(ac97, UCB_ADC_CR, UCB_ADC_ENA);
+}
+
+static unsigned int ucb1400_adc_read(struct snd_ac97 *ac97, u16 adc_channel,
+					int adcsync)
+{
+	unsigned int val;
+
+	if (adcsync)
+		adc_channel |= UCB_ADC_SYNC_ENA;
+
+	ucb1400_reg_write(ac97, UCB_ADC_CR, UCB_ADC_ENA | adc_channel);
+	ucb1400_reg_write(ac97, UCB_ADC_CR, UCB_ADC_ENA | adc_channel |
+				UCB_ADC_START);
+
+	while (!((val = ucb1400_reg_read(ac97, UCB_ADC_DATA))
+			& UCB_ADC_DAT_VALID))
+		schedule_timeout_uninterruptible(1);
+
+	return val & UCB_ADC_DAT_MASK;
+}
+
+static inline void ucb1400_adc_disable(struct snd_ac97 *ac97)
+{
+	ucb1400_reg_write(ac97, UCB_ADC_CR, 0);
+}
+
+#endif

include/linux/wm97xx_batt.h

+#ifndef _LINUX_WM97XX_BAT_H
+#define _LINUX_WM97XX_BAT_H
+
+#include <linux/wm97xx.h>
+
+struct wm97xx_batt_info {
+	int	batt_aux;
+	int	temp_aux;
+	int	charge_gpio;
+	int	min_voltage;
+	int	max_voltage;
+	int	batt_div;
+	int	batt_mult;
+	int	temp_div;
+	int	temp_mult;
+	int	batt_tech;
+	char	*batt_name;
+};
+
+#ifdef CONFIG_BATTERY_WM97XX
+void __init wm97xx_bat_set_pdata(struct wm97xx_batt_info *data);
+#else
+static inline void wm97xx_bat_set_pdata(struct wm97xx_batt_info *data) {}
+#endif
+
+#endif