Merge branch 'for-lak' of git://git.linuxtogo.org/home/thesing/collie into sa1100

11 files changed, 518 insertions, 329 deletions

diff --git a/drivers/leds/leds-locomo.c b/drivers/leds/leds-locomo.c
index 5d91362e306..1f7c10f6b7f 100644
--- a/drivers/leds/leds-locomo.c
+++ b/drivers/leds/leds-locomo.c
@@ -44,7 +44,7 @@ static void locomoled_brightness_set1(struct led_classdev *led_cdev,
 
 static struct led_classdev locomo_led0 = {
 	.name			= "locomo:amber:charge",
-	.default_trigger	= "sharpsl-charge",
+	.default_trigger	= "main-battery-charging",
 	.brightness_set		= locomoled_brightness_set0,
 };
 
diff --git a/drivers/mfd/mcp-core.c b/drivers/mfd/mcp-core.c
index 57271cb3b31..84815f9ef63 100644
--- a/drivers/mfd/mcp-core.c
+++ b/drivers/mfd/mcp-core.c
@@ -17,11 +17,11 @@
 #include <linux/device.h>
 #include <linux/slab.h>
 #include <linux/string.h>
+#include <linux/mfd/mcp.h>
 
 #include <mach/dma.h>
 #include <asm/system.h>
 
-#include "mcp.h"
 
 #define to_mcp(d)		container_of(d, struct mcp, attached_device)
 #define to_mcp_driver(d)	container_of(d, struct mcp_driver, drv)
diff --git a/drivers/mfd/mcp-sa11x0.c b/drivers/mfd/mcp-sa11x0.c
index 62b32dabf62..25842723272 100644
--- a/drivers/mfd/mcp-sa11x0.c
+++ b/drivers/mfd/mcp-sa11x0.c
@@ -19,6 +19,7 @@
 #include <linux/spinlock.h>
 #include <linux/slab.h>
 #include <linux/platform_device.h>
+#include <linux/mfd/mcp.h>
 
 #include <mach/dma.h>
 #include <mach/hardware.h>
@@ -28,7 +29,6 @@
 
 #include <mach/assabet.h>
 
-#include "mcp.h"
 
 struct mcp_sa11x0 {
 	u32	mccr0;
@@ -163,6 +163,7 @@ static int mcp_sa11x0_probe(struct platform_device *pdev)
 	mcp->dma_audio_wr	= DMA_Ser4MCP0Wr;
 	mcp->dma_telco_rd	= DMA_Ser4MCP1Rd;
 	mcp->dma_telco_wr	= DMA_Ser4MCP1Wr;
+	mcp->gpio_base		= data->gpio_base;
 
 	platform_set_drvdata(pdev, mcp);
 
diff --git a/drivers/mfd/mcp.h b/drivers/mfd/mcp.h
deleted file mode 100644
index c093a93b880..00000000000
--- a/drivers/mfd/mcp.h
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- *  linux/drivers/mfd/mcp.h
- *
- *  Copyright (C) 2001 Russell King, All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License.
- */
-#ifndef MCP_H
-#define MCP_H
-
-struct mcp_ops;
-
-struct mcp {
-	struct module	*owner;
-	struct mcp_ops	*ops;
-	spinlock_t	lock;
-	int		use_count;
-	unsigned int	sclk_rate;
-	unsigned int	rw_timeout;
-	dma_device_t	dma_audio_rd;
-	dma_device_t	dma_audio_wr;
-	dma_device_t	dma_telco_rd;
-	dma_device_t	dma_telco_wr;
-	struct device	attached_device;
-};
-
-struct mcp_ops {
-	void		(*set_telecom_divisor)(struct mcp *, unsigned int);
-	void		(*set_audio_divisor)(struct mcp *, unsigned int);
-	void		(*reg_write)(struct mcp *, unsigned int, unsigned int);
-	unsigned int	(*reg_read)(struct mcp *, unsigned int);
-	void		(*enable)(struct mcp *);
-	void		(*disable)(struct mcp *);
-};
-
-void mcp_set_telecom_divisor(struct mcp *, unsigned int);
-void mcp_set_audio_divisor(struct mcp *, unsigned int);
-void mcp_reg_write(struct mcp *, unsigned int, unsigned int);
-unsigned int mcp_reg_read(struct mcp *, unsigned int);
-void mcp_enable(struct mcp *);
-void mcp_disable(struct mcp *);
-#define mcp_get_sclk_rate(mcp)	((mcp)->sclk_rate)
-
-struct mcp *mcp_host_alloc(struct device *, size_t);
-int mcp_host_register(struct mcp *);
-void mcp_host_unregister(struct mcp *);
-
-struct mcp_driver {
-	struct device_driver drv;
-	int (*probe)(struct mcp *);
-	void (*remove)(struct mcp *);
-	int (*suspend)(struct mcp *, pm_message_t);
-	int (*resume)(struct mcp *);
-};
-
-int mcp_driver_register(struct mcp_driver *);
-void mcp_driver_unregister(struct mcp_driver *);
-
-#define mcp_get_drvdata(mcp)	dev_get_drvdata(&(mcp)->attached_device)
-#define mcp_set_drvdata(mcp,d)	dev_set_drvdata(&(mcp)->attached_device, d)
-
-#define mcp_priv(mcp)		((void *)((mcp)+1))
-
-#endif
diff --git a/drivers/mfd/ucb1x00-assabet.c b/drivers/mfd/ucb1x00-assabet.c
index 86fed4870f9..cea9da60850 100644
--- a/drivers/mfd/ucb1x00-assabet.c
+++ b/drivers/mfd/ucb1x00-assabet.c
@@ -14,10 +14,10 @@
 #include <linux/fs.h>
 #include <linux/proc_fs.h>
 #include <linux/device.h>
+#include <linux/mfd/ucb1x00.h>
 
 #include <mach/dma.h>
 
-#include "ucb1x00.h"
 
 #define UCB1X00_ATTR(name,input)\
 static ssize_t name##_show(struct device *dev, struct device_attribute *attr, \
diff --git a/drivers/mfd/ucb1x00-core.c b/drivers/mfd/ucb1x00-core.c
index 60c3988f3cf..252b74188ec 100644
--- a/drivers/mfd/ucb1x00-core.c
+++ b/drivers/mfd/ucb1x00-core.c
@@ -25,12 +25,12 @@
 #include <linux/interrupt.h>
 #include <linux/device.h>
 #include <linux/mutex.h>
+#include <linux/mfd/ucb1x00.h>
+#include <linux/gpio.h>
 
 #include <mach/dma.h>
 #include <mach/hardware.h>
 
-#include "ucb1x00.h"
-
 static DEFINE_MUTEX(ucb1x00_mutex);
 static LIST_HEAD(ucb1x00_drivers);
 static LIST_HEAD(ucb1x00_devices);
@@ -108,6 +108,60 @@ unsigned int ucb1x00_io_read(struct ucb1x00 *ucb)
 	return ucb1x00_reg_read(ucb, UCB_IO_DATA);
 }
 
+static void ucb1x00_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+{
+	struct ucb1x00 *ucb = container_of(chip, struct ucb1x00, gpio);
+	unsigned long flags;
+
+	spin_lock_irqsave(&ucb->io_lock, flags);
+	if (value)
+		ucb->io_out |= 1 << offset;
+	else
+		ucb->io_out &= ~(1 << offset);
+
+	ucb1x00_reg_write(ucb, UCB_IO_DATA, ucb->io_out);
+	spin_unlock_irqrestore(&ucb->io_lock, flags);
+}
+
+static int ucb1x00_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+	struct ucb1x00 *ucb = container_of(chip, struct ucb1x00, gpio);
+	return ucb1x00_reg_read(ucb, UCB_IO_DATA) & (1 << offset);
+}
+
+static int ucb1x00_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+	struct ucb1x00 *ucb = container_of(chip, struct ucb1x00, gpio);
+	unsigned long flags;
+
+	spin_lock_irqsave(&ucb->io_lock, flags);
+	ucb->io_dir &= ~(1 << offset);
+	ucb1x00_reg_write(ucb, UCB_IO_DIR, ucb->io_dir);
+	spin_unlock_irqrestore(&ucb->io_lock, flags);
+
+	return 0;
+}
+
+static int ucb1x00_gpio_direction_output(struct gpio_chip *chip, unsigned offset
+		, int value)
+{
+	struct ucb1x00 *ucb = container_of(chip, struct ucb1x00, gpio);
+	unsigned long flags;
+
+	spin_lock_irqsave(&ucb->io_lock, flags);
+	ucb->io_dir |= (1 << offset);
+	ucb1x00_reg_write(ucb, UCB_IO_DIR, ucb->io_dir);
+
+	if (value)
+		ucb->io_out |= 1 << offset;
+	else
+		ucb->io_out &= ~(1 << offset);
+	ucb1x00_reg_write(ucb, UCB_IO_DATA, ucb->io_out);
+	spin_unlock_irqrestore(&ucb->io_lock, flags);
+
+	return 0;
+}
+
 /*
  * UCB1300 data sheet says we must:
  *  1. enable ADC	=> 5us (including reference startup time)
@@ -476,6 +530,7 @@ static int ucb1x00_probe(struct mcp *mcp)
 	struct ucb1x00_driver *drv;
 	unsigned int id;
 	int ret = -ENODEV;
+	int temp;
 
 	mcp_enable(mcp);
 	id = mcp_reg_read(mcp, UCB_ID);
@@ -508,12 +563,27 @@ static int ucb1x00_probe(struct mcp *mcp)
 		goto err_free;
 	}
 
+	ucb->gpio.base = -1;
+	if (mcp->gpio_base != 0) {
+		ucb->gpio.label = dev_name(&ucb->dev);
+		ucb->gpio.base = mcp->gpio_base;
+		ucb->gpio.ngpio = 10;
+		ucb->gpio.set = ucb1x00_gpio_set;
+		ucb->gpio.get = ucb1x00_gpio_get;
+		ucb->gpio.direction_input = ucb1x00_gpio_direction_input;
+		ucb->gpio.direction_output = ucb1x00_gpio_direction_output;
+		ret = gpiochip_add(&ucb->gpio);
+		if (ret)
+			goto err_free;
+	} else
+		dev_info(&ucb->dev, "gpio_base not set so no gpiolib support");
+
 	ret = request_irq(ucb->irq, ucb1x00_irq, IRQF_TRIGGER_RISING,
 			  "UCB1x00", ucb);
 	if (ret) {
 		printk(KERN_ERR "ucb1x00: unable to grab irq%d: %d\n",
 			ucb->irq, ret);
-		goto err_free;
+		goto err_gpio;
 	}
 
 	mcp_set_drvdata(mcp, ucb);
@@ -522,6 +592,7 @@ static int ucb1x00_probe(struct mcp *mcp)
 	if (ret)
 		goto err_irq;
 
+
 	INIT_LIST_HEAD(&ucb->devs);
 	mutex_lock(&ucb1x00_mutex);
 	list_add(&ucb->node, &ucb1x00_devices);
@@ -529,10 +600,14 @@ static int ucb1x00_probe(struct mcp *mcp)
 		ucb1x00_add_dev(ucb, drv);
 	}
 	mutex_unlock(&ucb1x00_mutex);
+
 	goto out;
 
  err_irq:
 	free_irq(ucb->irq, ucb);
+ err_gpio:
+	if (ucb->gpio.base != -1)
+		temp = gpiochip_remove(&ucb->gpio);
  err_free:
 	kfree(ucb);
  err_disable:
@@ -545,6 +620,7 @@ static void ucb1x00_remove(struct mcp *mcp)
 {
 	struct ucb1x00 *ucb = mcp_get_drvdata(mcp);
 	struct list_head *l, *n;
+	int ret;
 
 	mutex_lock(&ucb1x00_mutex);
 	list_del(&ucb->node);
@@ -554,6 +630,12 @@ static void ucb1x00_remove(struct mcp *mcp)
 	}
 	mutex_unlock(&ucb1x00_mutex);
 
+	if (ucb->gpio.base != -1) {
+		ret = gpiochip_remove(&ucb->gpio);
+		if (ret)
+			dev_err(&ucb->dev, "Can't remove gpio chip: %d\n", ret);
+	}
+
 	free_irq(ucb->irq, ucb);
 	device_unregister(&ucb->dev);
 }
@@ -604,6 +686,7 @@ static int ucb1x00_resume(struct mcp *mcp)
 	struct ucb1x00 *ucb = mcp_get_drvdata(mcp);
 	struct ucb1x00_dev *dev;
 
+	ucb1x00_reg_write(ucb, UCB_IO_DIR, ucb->io_dir);
 	mutex_lock(&ucb1x00_mutex);
 	list_for_each_entry(dev, &ucb->devs, dev_node) {
 		if (dev->drv->resume)
diff --git a/drivers/mfd/ucb1x00-ts.c b/drivers/mfd/ucb1x00-ts.c
index 61b7d3eb9a2..000cb414a78 100644
--- a/drivers/mfd/ucb1x00-ts.c
+++ b/drivers/mfd/ucb1x00-ts.c
@@ -30,12 +30,12 @@
 #include <linux/freezer.h>
 #include <linux/slab.h>
 #include <linux/kthread.h>
+#include <linux/mfd/ucb1x00.h>
 
 #include <mach/dma.h>
 #include <mach/collie.h>
 #include <asm/mach-types.h>
 
-#include "ucb1x00.h"
 
 
 struct ucb1x00_ts {
diff --git a/drivers/mfd/ucb1x00.h b/drivers/mfd/ucb1x00.h
deleted file mode 100644
index a8ad8a0ed5d..00000000000
--- a/drivers/mfd/ucb1x00.h
+++ /dev/null
@@ -1,255 +0,0 @@
-/*
- *  linux/drivers/mfd/ucb1x00.h
- *
- *  Copyright (C) 2001 Russell King, All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License.
- */
-#ifndef UCB1200_H
-#define UCB1200_H
-
-#define UCB_IO_DATA	0x00
-#define UCB_IO_DIR	0x01
-
-#define UCB_IO_0		(1 << 0)
-#define UCB_IO_1		(1 << 1)
-#define UCB_IO_2		(1 << 2)
-#define UCB_IO_3		(1 << 3)
-#define UCB_IO_4		(1 << 4)
-#define UCB_IO_5		(1 << 5)
-#define UCB_IO_6		(1 << 6)
-#define UCB_IO_7		(1 << 7)
-#define UCB_IO_8		(1 << 8)
-#define UCB_IO_9		(1 << 9)
-
-#define UCB_IE_RIS	0x02
-#define UCB_IE_FAL	0x03
-#define UCB_IE_STATUS	0x04
-#define UCB_IE_CLEAR	0x04
-#define UCB_IE_ADC		(1 << 11)
-#define UCB_IE_TSPX		(1 << 12)
-#define UCB_IE_TSMX		(1 << 13)
-#define UCB_IE_TCLIP		(1 << 14)
-#define UCB_IE_ACLIP		(1 << 15)
-
-#define UCB_IRQ_TSPX		12
-
-#define UCB_TC_A	0x05
-#define UCB_TC_A_LOOP		(1 << 7)	/* UCB1200 */
-#define UCB_TC_A_AMPL		(1 << 7)	/* UCB1300 */
-
-#define UCB_TC_B	0x06
-#define UCB_TC_B_VOICE_ENA	(1 << 3)
-#define UCB_TC_B_CLIP		(1 << 4)
-#define UCB_TC_B_ATT		(1 << 6)
-#define UCB_TC_B_SIDE_ENA	(1 << 11)
-#define UCB_TC_B_MUTE		(1 << 13)
-#define UCB_TC_B_IN_ENA		(1 << 14)
-#define UCB_TC_B_OUT_ENA	(1 << 15)
-
-#define UCB_AC_A	0x07
-#define UCB_AC_B	0x08
-#define UCB_AC_B_LOOP		(1 << 8)
-#define UCB_AC_B_MUTE		(1 << 13)
-#define UCB_AC_B_IN_ENA		(1 << 14)
-#define UCB_AC_B_OUT_ENA	(1 << 15)
-
-#define UCB_TS_CR	0x09
-#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	0x0a
-#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	0x0b
-#define UCB_ADC_DAT_VAL		(1 << 15)
-#define UCB_ADC_DAT(x)		(((x) & 0x7fe0) >> 5)
-
-#define UCB_ID		0x0c
-#define UCB_ID_1200		0x1004
-#define UCB_ID_1300		0x1005
-#define UCB_ID_TC35143          0x9712
-
-#define UCB_MODE	0x0d
-#define UCB_MODE_DYN_VFLAG_ENA	(1 << 12)
-#define UCB_MODE_AUD_OFF_CAN	(1 << 13)
-
-#include "mcp.h"
-
-struct ucb1x00_irq {
-	void *devid;
-	void (*fn)(int, void *);
-};
-
-struct ucb1x00 {
-	spinlock_t		lock;
-	struct mcp		*mcp;
-	unsigned int		irq;
-	struct semaphore	adc_sem;
-	spinlock_t		io_lock;
-	u16			id;
-	u16			io_dir;
-	u16			io_out;
-	u16			adc_cr;
-	u16			irq_fal_enbl;
-	u16			irq_ris_enbl;
-	struct ucb1x00_irq	irq_handler[16];
-	struct device		dev;
-	struct list_head	node;
-	struct list_head	devs;
-};
-
-struct ucb1x00_driver;
-
-struct ucb1x00_dev {
-	struct list_head	dev_node;
-	struct list_head	drv_node;
-	struct ucb1x00		*ucb;
-	struct ucb1x00_driver	*drv;
-	void			*priv;
-};
-
-struct ucb1x00_driver {
-	struct list_head	node;
-	struct list_head	devs;
-	int	(*add)(struct ucb1x00_dev *dev);
-	void	(*remove)(struct ucb1x00_dev *dev);
-	int	(*suspend)(struct ucb1x00_dev *dev, pm_message_t state);
-	int	(*resume)(struct ucb1x00_dev *dev);
-};
-
-#define classdev_to_ucb1x00(cd)	container_of(cd, struct ucb1x00, dev)
-
-int ucb1x00_register_driver(struct ucb1x00_driver *);
-void ucb1x00_unregister_driver(struct ucb1x00_driver *);
-
-/**
- *	ucb1x00_clkrate - return the UCB1x00 SIB clock rate
- *	@ucb: UCB1x00 structure describing chip
- *
- *	Return the SIB clock rate in Hz.
- */
-static inline unsigned int ucb1x00_clkrate(struct ucb1x00 *ucb)
-{
-	return mcp_get_sclk_rate(ucb->mcp);
-}
-
-/**
- *	ucb1x00_enable - enable the UCB1x00 SIB clock
- *	@ucb: UCB1x00 structure describing chip
- *
- *	Enable the SIB clock.  This can be called multiple times.
- */
-static inline void ucb1x00_enable(struct ucb1x00 *ucb)
-{
-	mcp_enable(ucb->mcp);
-}
-
-/**
- *	ucb1x00_disable - disable the UCB1x00 SIB clock
- *	@ucb: UCB1x00 structure describing chip
- *
- *	Disable the SIB clock.  The SIB clock will only be disabled
- *	when the number of ucb1x00_enable calls match the number of
- *	ucb1x00_disable calls.
- */
-static inline void ucb1x00_disable(struct ucb1x00 *ucb)
-{
-	mcp_disable(ucb->mcp);
-}
-
-/**
- *	ucb1x00_reg_write - write a UCB1x00 register
- *	@ucb: UCB1x00 structure describing chip
- *	@reg: UCB1x00 4-bit register index to write
- *	@val: UCB1x00 16-bit value to write
- *
- *	Write the UCB1x00 register @reg with value @val.  The SIB
- *	clock must be running for this function to return.
- */
-static inline void ucb1x00_reg_write(struct ucb1x00 *ucb, unsigned int reg, unsigned int val)
-{
-	mcp_reg_write(ucb->mcp, reg, val);
-}
-
-/**
- *	ucb1x00_reg_read - read a UCB1x00 register
- *	@ucb: UCB1x00 structure describing chip
- *	@reg: UCB1x00 4-bit register index to write
- *
- *	Read the UCB1x00 register @reg and return its value.  The SIB
- *	clock must be running for this function to return.
- */
-static inline unsigned int ucb1x00_reg_read(struct ucb1x00 *ucb, unsigned int reg)
-{
-	return mcp_reg_read(ucb->mcp, reg);
-}
-/**
- *	ucb1x00_set_audio_divisor - 
- *	@ucb: UCB1x00 structure describing chip
- *	@div: SIB clock divisor
- */
-static inline void ucb1x00_set_audio_divisor(struct ucb1x00 *ucb, unsigned int div)
-{
-	mcp_set_audio_divisor(ucb->mcp, div);
-}
-
-/**
- *	ucb1x00_set_telecom_divisor -
- *	@ucb: UCB1x00 structure describing chip
- *	@div: SIB clock divisor
- */
-static inline void ucb1x00_set_telecom_divisor(struct ucb1x00 *ucb, unsigned int div)
-{
-	mcp_set_telecom_divisor(ucb->mcp, div);
-}
-
-void ucb1x00_io_set_dir(struct ucb1x00 *ucb, unsigned int, unsigned int);
-void ucb1x00_io_write(struct ucb1x00 *ucb, unsigned int, unsigned int);
-unsigned int ucb1x00_io_read(struct ucb1x00 *ucb);
-
-#define UCB_NOSYNC	(0)
-#define UCB_SYNC	(1)
-
-unsigned int ucb1x00_adc_read(struct ucb1x00 *ucb, int adc_channel, int sync);
-void ucb1x00_adc_enable(struct ucb1x00 *ucb);
-void ucb1x00_adc_disable(struct ucb1x00 *ucb);
-
-/*
- * Which edges of the IRQ do you want to control today?
- */
-#define UCB_RISING	(1 << 0)
-#define UCB_FALLING	(1 << 1)
-
-int ucb1x00_hook_irq(struct ucb1x00 *ucb, unsigned int idx, void (*fn)(int, void *), void *devid);
-void ucb1x00_enable_irq(struct ucb1x00 *ucb, unsigned int idx, int edges);
-void ucb1x00_disable_irq(struct ucb1x00 *ucb, unsigned int idx, int edges);
-int ucb1x00_free_irq(struct ucb1x00 *ucb, unsigned int idx, void *devid);
-
-#endif
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index cea6cef27e8..11867492551 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -77,6 +77,13 @@ config BATTERY_TOSA
 	  Say Y to enable support for the battery on the Sharp Zaurus
 	  SL-6000 (tosa) models.
 
+config BATTERY_COLLIE
+	tristate "Sharp SL-5500 (collie) battery"
+	depends on SA1100_COLLIE && MCP_UCB1200
+	help
+	  Say Y to enable support for the battery on the Sharp Zaurus
+	  SL-5500 (collie) models.
+
 config BATTERY_WM97XX
 	bool "WM97xx generic battery driver"
 	depends on TOUCHSCREEN_WM97XX=y
diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index b96f29d91c2..356cdfd3c8b 100644
--- a/drivers/power/Makefile
+++ b/drivers/power/Makefile
@@ -24,6 +24,7 @@ obj-$(CONFIG_BATTERY_DS2782)	+= ds2782_battery.o
 obj-$(CONFIG_BATTERY_PMU)	+= pmu_battery.o
 obj-$(CONFIG_BATTERY_OLPC)	+= olpc_battery.o
 obj-$(CONFIG_BATTERY_TOSA)	+= tosa_battery.o
+obj-$(CONFIG_BATTERY_COLLIE)	+= collie_battery.o
 obj-$(CONFIG_BATTERY_WM97XX)	+= wm97xx_battery.o
 obj-$(CONFIG_BATTERY_BQ27x00)	+= bq27x00_battery.o
 obj-$(CONFIG_BATTERY_DA9030)	+= da9030_battery.o
diff --git a/drivers/power/collie_battery.c b/drivers/power/collie_battery.c
new file mode 100644
index 00000000000..039f41ae217
--- /dev/null
+++ b/drivers/power/collie_battery.c
@@ -0,0 +1,418 @@
+/*
+ * Battery and Power Management code for the Sharp SL-5x00
+ *
+ * Copyright (C) 2009 Thomas Kunze
+ *
+ * based on tosa_battery.c
+ *
+ * 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/delay.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/gpio.h>
+#include <linux/mfd/ucb1x00.h>
+
+#include <asm/mach/sharpsl_param.h>
+#include <asm/mach-types.h>
+#include <mach/collie.h>
+
+static DEFINE_MUTEX(bat_lock); /* protects gpio pins */
+static struct work_struct bat_work;
+static struct ucb1x00 *ucb;
+
+struct collie_bat {
+	int status;
+	struct power_supply psy;
+	int full_chrg;
+
+	struct mutex work_lock; /* protects data */
+
+	bool (*is_present)(struct collie_bat *bat);
+	int gpio_full;
+	int gpio_charge_on;
+
+	int technology;
+
+	int gpio_bat;
+	int adc_bat;
+	int adc_bat_divider;
+	int bat_max;
+	int bat_min;
+
+	int gpio_temp;
+	int adc_temp;
+	int adc_temp_divider;
+};
+
+static struct collie_bat collie_bat_main;
+
+static unsigned long collie_read_bat(struct collie_bat *bat)
+{
+	unsigned long value = 0;
+
+	if (bat->gpio_bat < 0 || bat->adc_bat < 0)
+		return 0;
+	mutex_lock(&bat_lock);
+	gpio_set_value(bat->gpio_bat, 1);
+	msleep(5);
+	ucb1x00_adc_enable(ucb);
+	value = ucb1x00_adc_read(ucb, bat->adc_bat, UCB_SYNC);
+	ucb1x00_adc_disable(ucb);
+	gpio_set_value(bat->gpio_bat, 0);
+	mutex_unlock(&bat_lock);
+	value = value * 1000000 / bat->adc_bat_divider;
+
+	return value;
+}
+
+static unsigned long collie_read_temp(struct collie_bat *bat)
+{
+	unsigned long value = 0;
+	if (bat->gpio_temp < 0 || bat->adc_temp < 0)
+		return 0;
+
+	mutex_lock(&bat_lock);
+	gpio_set_value(bat->gpio_temp, 1);
+	msleep(5);
+	ucb1x00_adc_enable(ucb);
+	value = ucb1x00_adc_read(ucb, bat->adc_temp, UCB_SYNC);
+	ucb1x00_adc_disable(ucb);
+	gpio_set_value(bat->gpio_temp, 0);
+	mutex_unlock(&bat_lock);
+
+	value = value * 10000 / bat->adc_temp_divider;
+
+	return value;
+}
+
+static int collie_bat_get_property(struct power_supply *psy,
+			    enum power_supply_property psp,
+			    union power_supply_propval *val)
+{
+	int ret = 0;
+	struct collie_bat *bat = container_of(psy, struct collie_bat, psy);
+
+	if (bat->is_present && !bat->is_present(bat)
+			&& psp != POWER_SUPPLY_PROP_PRESENT) {
+		return -ENODEV;
+	}
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+		val->intval = bat->status;
+		break;
+	case POWER_SUPPLY_PROP_TECHNOLOGY:
+		val->intval = bat->technology;
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+		val->intval = collie_read_bat(bat);
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_MAX:
+		if (bat->full_chrg == -1)
+			val->intval = bat->bat_max;
+		else
+			val->intval = bat->full_chrg;
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
+		val->intval = bat->bat_max;
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
+		val->intval = bat->bat_min;
+		break;
+	case POWER_SUPPLY_PROP_TEMP:
+		val->intval = collie_read_temp(bat);
+		break;
+	case POWER_SUPPLY_PROP_PRESENT:
+		val->intval = bat->is_present ? bat->is_present(bat) : 1;
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+	return ret;
+}
+
+static void collie_bat_external_power_changed(struct power_supply *psy)
+{
+	schedule_work(&bat_work);
+}
+
+static irqreturn_t collie_bat_gpio_isr(int irq, void *data)
+{
+	pr_info("collie_bat_gpio irq: %d\n", gpio_get_value(irq_to_gpio(irq)));
+	schedule_work(&bat_work);
+	return IRQ_HANDLED;
+}
+
+static void collie_bat_update(struct collie_bat *bat)
+{
+	int old;
+	struct power_supply *psy = &bat->psy;
+
+	mutex_lock(&bat->work_lock);
+
+	old = bat->status;
+
+	if (bat->is_present && !bat->is_present(bat)) {
+		printk(KERN_NOTICE "%s not present\n", psy->name);
+		bat->status = POWER_SUPPLY_STATUS_UNKNOWN;
+		bat->full_chrg = -1;
+	} else if (power_supply_am_i_supplied(psy)) {
+		if (bat->status == POWER_SUPPLY_STATUS_DISCHARGING) {
+			gpio_set_value(bat->gpio_charge_on, 1);
+			mdelay(15);
+		}
+
+		if (gpio_get_value(bat->gpio_full)) {
+			if (old == POWER_SUPPLY_STATUS_CHARGING ||
+					bat->full_chrg == -1)
+				bat->full_chrg = collie_read_bat(bat);
+
+			gpio_set_value(bat->gpio_charge_on, 0);
+			bat->status = POWER_SUPPLY_STATUS_FULL;
+		} else {
+			gpio_set_value(bat->gpio_charge_on, 1);
+			bat->status = POWER_SUPPLY_STATUS_CHARGING;
+		}
+	} else {
+		gpio_set_value(bat->gpio_charge_on, 0);
+		bat->status = POWER_SUPPLY_STATUS_DISCHARGING;
+	}
+
+	if (old != bat->status)
+		power_supply_changed(psy);
+
+	mutex_unlock(&bat->work_lock);
+}
+
+static void collie_bat_work(struct work_struct *work)
+{
+	collie_bat_update(&collie_bat_main);
+}
+
+
+static enum power_supply_property collie_bat_main_props[] = {
+	POWER_SUPPLY_PROP_STATUS,
+	POWER_SUPPLY_PROP_TECHNOLOGY,
+	POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
+	POWER_SUPPLY_PROP_VOLTAGE_NOW,
+	POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
+	POWER_SUPPLY_PROP_VOLTAGE_MAX,
+	POWER_SUPPLY_PROP_PRESENT,
+	POWER_SUPPLY_PROP_TEMP,
+};
+
+static enum power_supply_property collie_bat_bu_props[] = {
+	POWER_SUPPLY_PROP_STATUS,
+	POWER_SUPPLY_PROP_TECHNOLOGY,
+	POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
+	POWER_SUPPLY_PROP_VOLTAGE_NOW,
+	POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
+	POWER_SUPPLY_PROP_VOLTAGE_MAX,
+	POWER_SUPPLY_PROP_PRESENT,
+};
+
+static struct collie_bat collie_bat_main = {
+	.status = POWER_SUPPLY_STATUS_DISCHARGING,
+	.full_chrg = -1,
+	.psy = {
+		.name		= "main-battery",
+		.type		= POWER_SUPPLY_TYPE_BATTERY,
+		.properties	= collie_bat_main_props,
+		.num_properties	= ARRAY_SIZE(collie_bat_main_props),
+		.get_property	= collie_bat_get_property,
+		.external_power_changed = collie_bat_external_power_changed,
+		.use_for_apm	= 1,
+	},
+
+	.gpio_full = COLLIE_GPIO_CO,
+	.gpio_charge_on = COLLIE_GPIO_CHARGE_ON,
+
+	.technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
+
+	.gpio_bat = COLLIE_GPIO_MBAT_ON,
+	.adc_bat = UCB_ADC_INP_AD1,
+	.adc_bat_divider = 155,
+	.bat_max = 4310000,
+	.bat_min = 1551 * 1000000 / 414,
+
+	.gpio_temp = COLLIE_GPIO_TMP_ON,
+	.adc_temp = UCB_ADC_INP_AD0,
+	.adc_temp_divider = 10000,
+};
+
+static struct collie_bat collie_bat_bu = {
+	.status = POWER_SUPPLY_STATUS_UNKNOWN,
+	.full_chrg = -1,
+
+	.psy = {
+		.name		= "backup-battery",
+		.type		= POWER_SUPPLY_TYPE_BATTERY,
+		.properties	= collie_bat_bu_props,
+		.num_properties	= ARRAY_SIZE(collie_bat_bu_props),
+		.get_property	= collie_bat_get_property,
+		.external_power_changed = collie_bat_external_power_changed,
+	},
+
+	.gpio_full = -1,
+	.gpio_charge_on = -1,
+
+	.technology = POWER_SUPPLY_TECHNOLOGY_LiMn,
+
+	.gpio_bat = COLLIE_GPIO_BBAT_ON,
+	.adc_bat = UCB_ADC_INP_AD1,
+	.adc_bat_divider = 155,
+	.bat_max = 3000000,
+	.bat_min = 1900000,
+
+	.gpio_temp = -1,
+	.adc_temp = -1,
+	.adc_temp_divider = -1,
+};
+
+static struct {
+	int gpio;
+	char *name;
+	bool output;
+	int value;
+} gpios[] = {
+	{ COLLIE_GPIO_CO,		"main battery full",	0, 0 },
+	{ COLLIE_GPIO_MAIN_BAT_LOW,	"main battery low",	0, 0 },
+	{ COLLIE_GPIO_CHARGE_ON,	"main charge on",	1, 0 },
+	{ COLLIE_GPIO_MBAT_ON,		"main battery",		1, 0 },
+	{ COLLIE_GPIO_TMP_ON,		"main battery temp",	1, 0 },
+	{ COLLIE_GPIO_BBAT_ON,		"backup battery",	1, 0 },
+};
+
+#ifdef CONFIG_PM
+static int collie_bat_suspend(struct ucb1x00_dev *dev, pm_message_t state)
+{
+	/* flush all pending status updates */
+	flush_scheduled_work();
+	return 0;
+}
+
+static int collie_bat_resume(struct ucb1x00_dev *dev)
+{
+	/* things may have changed while we were away */
+	schedule_work(&bat_work);
+	return 0;
+}
+#else
+#define collie_bat_suspend NULL
+#define collie_bat_resume NULL
+#endif
+
+static int __devinit collie_bat_probe(struct ucb1x00_dev *dev)
+{
+	int ret;
+	int i;
+
+	if (!machine_is_collie())
+		return -ENODEV;
+
+	ucb = dev->ucb;
+
+	for (i = 0; i < ARRAY_SIZE(gpios); i++) {
+		ret = gpio_request(gpios[i].gpio, gpios[i].name);
+		if (ret) {
+			i--;
+			goto err_gpio;
+		}
+
+		if (gpios[i].output)
+			ret = gpio_direction_output(gpios[i].gpio,
+					gpios[i].value);
+		else
+			ret = gpio_direction_input(gpios[i].gpio);
+
+		if (ret)
+			goto err_gpio;
+	}
+
+	mutex_init(&collie_bat_main.work_lock);
+
+	INIT_WORK(&bat_work, collie_bat_work);
+
+	ret = power_supply_register(&dev->ucb->dev, &collie_bat_main.psy);
+	if (ret)
+		goto err_psy_reg_main;
+	ret = power_supply_register(&dev->ucb->dev, &collie_bat_bu.psy);
+	if (ret)
+		goto err_psy_reg_bu;
+
+	ret = request_irq(gpio_to_irq(COLLIE_GPIO_CO),
+				collie_bat_gpio_isr,
+				IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+				"main full", &collie_bat_main);
+	if (!ret) {
+		schedule_work(&bat_work);
+		return 0;
+	}
+	power_supply_unregister(&collie_bat_bu.psy);
+err_psy_reg_bu:
+	power_supply_unregister(&collie_bat_main.psy);
+err_psy_reg_main:
+
+	/* see comment in collie_bat_remove */
+	flush_scheduled_work();
+
+	i--;
+err_gpio:
+	for (; i >= 0; i--)
+		gpio_free(gpios[i].gpio);
+
+	return ret;
+}
+
+static void __devexit collie_bat_remove(struct ucb1x00_dev *dev)
+{
+	int i;
+
+	free_irq(gpio_to_irq(COLLIE_GPIO_CO), &collie_bat_main);
+
+	power_supply_unregister(&collie_bat_bu.psy);
+	power_supply_unregister(&collie_bat_main.psy);
+
+	/*
+	 * now flush all pending work.
+	 * we won't get any more schedules, since all
+	 * sources (isr and external_power_changed)
+	 * are unregistered now.
+	 */
+	flush_scheduled_work();
+
+	for (i = ARRAY_SIZE(gpios) - 1; i >= 0; i--)
+		gpio_free(gpios[i].gpio);
+}
+
+static struct ucb1x00_driver collie_bat_driver = {
+	.add		= collie_bat_probe,
+	.remove		= __devexit_p(collie_bat_remove),
+	.suspend	= collie_bat_suspend,
+	.resume		= collie_bat_resume,
+};
+
+static int __init collie_bat_init(void)
+{
+	return ucb1x00_register_driver(&collie_bat_driver);
+}
+
+static void __exit collie_bat_exit(void)
+{
+	ucb1x00_unregister_driver(&collie_bat_driver);
+}
+
+module_init(collie_bat_init);
+module_exit(collie_bat_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Thomas Kunze");
+MODULE_DESCRIPTION("Collie battery driver");