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

arch/arm/mach-sa1100/collie.c

@@ -26,6 +26,7 @@
 #include <linux/mtd/partitions.h>
 #include <linux/timer.h>
 #include <linux/gpio.h>
+#include <linux/pda_power.h>
 
 #include <mach/hardware.h>
 #include <asm/mach-types.h>
@@ -56,6 +57,7 @@ static struct resource collie_scoop_resources[] = {
 static struct scoop_config collie_scoop_setup = {
 	.io_dir 	= COLLIE_SCOOP_IO_DIR,
 	.io_out		= COLLIE_SCOOP_IO_OUT,
+	.gpio_base	= COLLIE_SCOOP_GPIO_BASE,
 };
 
 struct platform_device colliescoop_device = {
@@ -85,6 +87,70 @@ static struct scoop_pcmcia_config collie_pcmcia_config = {
 static struct mcp_plat_data collie_mcp_data = {
 	.mccr0		= MCCR0_ADM | MCCR0_ExtClk,
 	.sclk_rate	= 9216000,
+	.gpio_base	= COLLIE_TC35143_GPIO_BASE,
+};
+
+/*
+ * Collie AC IN
+ */
+static int collie_power_init(struct device *dev)
+{
+	int ret = gpio_request(COLLIE_GPIO_AC_IN, "ac in");
+	if (ret)
+		goto err_gpio_req;
+
+	ret = gpio_direction_input(COLLIE_GPIO_AC_IN);
+	if (ret)
+		goto err_gpio_in;
+
+	return 0;
+
+err_gpio_in:
+	gpio_free(COLLIE_GPIO_AC_IN);
+err_gpio_req:
+	return ret;
+}
+
+static void collie_power_exit(struct device *dev)
+{
+	gpio_free(COLLIE_GPIO_AC_IN);
+}
+
+static int collie_power_ac_online(void)
+{
+	return gpio_get_value(COLLIE_GPIO_AC_IN) == 2;
+}
+
+static char *collie_ac_supplied_to[] = {
+	"main-battery",
+	"backup-battery",
+};
+
+static struct pda_power_pdata collie_power_data = {
+	.init			= collie_power_init,
+	.is_ac_online		= collie_power_ac_online,
+	.exit			= collie_power_exit,
+	.supplied_to		= collie_ac_supplied_to,
+	.num_supplicants	= ARRAY_SIZE(collie_ac_supplied_to),
+};
+
+static struct resource collie_power_resource[] = {
+	{
+		.name		= "ac",
+		.start		= gpio_to_irq(COLLIE_GPIO_AC_IN),
+		.end		= gpio_to_irq(COLLIE_GPIO_AC_IN),
+		.flags		= IORESOURCE_IRQ |
+				  IORESOURCE_IRQ_HIGHEDGE |
+				  IORESOURCE_IRQ_LOWEDGE,
+	},
+};
+
+static struct platform_device collie_power_device = {
+	.name			= "pda-power",
+	.id			= -1,
+	.dev.platform_data	= &collie_power_data,
+	.resource		= collie_power_resource,
+	.num_resources		= ARRAY_SIZE(collie_power_resource),
 };
 
 #ifdef CONFIG_SHARP_LOCOMO
@@ -178,6 +244,7 @@ struct platform_device collie_locomo_device = {
 static struct platform_device *devices[] __initdata = {
 	&collie_locomo_device,
 	&colliescoop_device,
+	&collie_power_device,
 };
 
 static struct mtd_partition collie_partitions[] = {
@@ -248,22 +315,24 @@ static void __init collie_init(void)
 	GPDR = GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 |
 		GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD |
 		GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK |
-		COLLIE_GPIO_UCB1x00_RESET | COLLIE_GPIO_nMIC_ON |
-		COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz;
+		_COLLIE_GPIO_UCB1x00_RESET | _COLLIE_GPIO_nMIC_ON |
+		_COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz;
 
 	PPDR = PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 |
 		PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS |
 		PPC_TXD1 | PPC_TXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM;
 
-	PWER = COLLIE_GPIO_AC_IN | COLLIE_GPIO_CO | COLLIE_GPIO_ON_KEY |
-		COLLIE_GPIO_WAKEUP | COLLIE_GPIO_nREMOCON_INT | PWER_RTC;
+	PWER = _COLLIE_GPIO_AC_IN | _COLLIE_GPIO_CO | _COLLIE_GPIO_ON_KEY |
+		_COLLIE_GPIO_WAKEUP | _COLLIE_GPIO_nREMOCON_INT | PWER_RTC;
 
-	PGSR = COLLIE_GPIO_nREMOCON_ON;
+	PGSR = _COLLIE_GPIO_nREMOCON_ON;
 
 	PSDR = PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4;
 
 	PCFR = PCFR_OPDE;
 
+	GPSR |= _COLLIE_GPIO_UCB1x00_RESET;
+
 
 	platform_scoop_config = &collie_pcmcia_config;
 

arch/arm/mach-sa1100/include/mach/collie.h

@@ -25,29 +25,39 @@
 #define COLLIE_GPIO_VPEN	(COLLIE_SCOOP_GPIO_BASE + 7)
 #define COLLIE_SCP_LB_VOL_CHG	SCOOP_GPCR_PA19
 
-#define COLLIE_SCOOP_IO_DIR	( COLLIE_SCP_MUTE_L | COLLIE_SCP_MUTE_R | \
+#define COLLIE_SCOOP_IO_DIR	(COLLIE_SCP_MUTE_L | COLLIE_SCP_MUTE_R | \
 				COLLIE_SCP_5VON | COLLIE_SCP_AMP_ON | \
-				COLLIE_SCP_LB_VOL_CHG )
-#define COLLIE_SCOOP_IO_OUT	( COLLIE_SCP_MUTE_L | COLLIE_SCP_MUTE_R )
+				COLLIE_SCP_LB_VOL_CHG)
+#define COLLIE_SCOOP_IO_OUT	(COLLIE_SCP_MUTE_L | COLLIE_SCP_MUTE_R)
 
-/* GPIOs for which the generic definition doesn't say much */
+/* GPIOs for gpiolib  */
 
-#define COLLIE_GPIO_ON_KEY		GPIO_GPIO (0)
-#define COLLIE_GPIO_AC_IN		GPIO_GPIO (1)
-#define COLLIE_GPIO_SDIO_INT		GPIO_GPIO (11)
-#define COLLIE_GPIO_CF_IRQ		GPIO_GPIO (14)
-#define COLLIE_GPIO_nREMOCON_INT	GPIO_GPIO (15)
-#define COLLIE_GPIO_UCB1x00_RESET	GPIO_GPIO (16)
-#define COLLIE_GPIO_nMIC_ON		GPIO_GPIO (17)
-#define COLLIE_GPIO_nREMOCON_ON		GPIO_GPIO (18)
-#define COLLIE_GPIO_CO			GPIO_GPIO (20)
-#define COLLIE_GPIO_MCP_CLK		GPIO_GPIO (21)
-#define COLLIE_GPIO_CF_CD		GPIO_GPIO (22)
-#define COLLIE_GPIO_UCB1x00_IRQ		GPIO_GPIO (23)
-#define COLLIE_GPIO_WAKEUP		GPIO_GPIO (24)
-#define COLLIE_GPIO_GA_INT		GPIO_GPIO (25)
-#define COLLIE_GPIO_MAIN_BAT_LOW	GPIO_GPIO (26)
+#define COLLIE_GPIO_ON_KEY		(0)
+#define COLLIE_GPIO_AC_IN		(1)
+#define COLLIE_GPIO_SDIO_INT		(11)
+#define COLLIE_GPIO_CF_IRQ		(14)
+#define COLLIE_GPIO_nREMOCON_INT	(15)
+#define COLLIE_GPIO_UCB1x00_RESET	(16)
+#define COLLIE_GPIO_nMIC_ON		(17)
+#define COLLIE_GPIO_nREMOCON_ON		(18)
+#define COLLIE_GPIO_CO			(20)
+#define COLLIE_GPIO_MCP_CLK		(21)
+#define COLLIE_GPIO_CF_CD		(22)
+#define COLLIE_GPIO_UCB1x00_IRQ		(23)
+#define COLLIE_GPIO_WAKEUP		(24)
+#define COLLIE_GPIO_GA_INT		(25)
+#define COLLIE_GPIO_MAIN_BAT_LOW	(26)
 
+/* GPIO definitions for direct register access */
+
+#define _COLLIE_GPIO_ON_KEY		GPIO_GPIO(0)
+#define _COLLIE_GPIO_AC_IN		GPIO_GPIO(1)
+#define _COLLIE_GPIO_nREMOCON_INT	GPIO_GPIO(15)
+#define _COLLIE_GPIO_UCB1x00_RESET	GPIO_GPIO(16)
+#define _COLLIE_GPIO_nMIC_ON		GPIO_GPIO(17)
+#define _COLLIE_GPIO_nREMOCON_ON	GPIO_GPIO(18)
+#define _COLLIE_GPIO_CO			GPIO_GPIO(20)
+#define _COLLIE_GPIO_WAKEUP		GPIO_GPIO(24)
 /* Interrupts */
 
 #define COLLIE_IRQ_GPIO_ON_KEY		IRQ_GPIO0
@@ -70,19 +80,20 @@
 #define COLLIE_LCM_IRQ_GPIO_nSD_WP	IRQ_LOCOMO_GPIO14
 
 /* GPIO's on the TC35143AF (Toshiba Analog Frontend) */
-#define COLLIE_TC35143_GPIO_VERSION0    UCB_IO_0	/* GPIO0=Version                 */
-#define COLLIE_TC35143_GPIO_TBL_CHK     UCB_IO_1	/* GPIO1=TBL_CHK                 */
-#define COLLIE_TC35143_GPIO_VPEN_ON     UCB_IO_2	/* GPIO2=VPNE_ON                 */
-#define COLLIE_TC35143_GPIO_IR_ON       UCB_IO_3	/* GPIO3=IR_ON                   */
-#define COLLIE_TC35143_GPIO_AMP_ON      UCB_IO_4	/* GPIO4=AMP_ON                  */
-#define COLLIE_TC35143_GPIO_VERSION1    UCB_IO_5	/* GPIO5=Version                 */
-#define COLLIE_TC35143_GPIO_FS8KLPF     UCB_IO_5	/* GPIO5=fs 8k LPF               */
-#define COLLIE_TC35143_GPIO_BUZZER_BIAS UCB_IO_6	/* GPIO6=BUZZER BIAS             */
-#define COLLIE_TC35143_GPIO_MBAT_ON     UCB_IO_7	/* GPIO7=MBAT_ON                 */
-#define COLLIE_TC35143_GPIO_BBAT_ON     UCB_IO_8	/* GPIO8=BBAT_ON                 */
-#define COLLIE_TC35143_GPIO_TMP_ON      UCB_IO_9	/* GPIO9=TMP_ON                  */
-#define COLLIE_TC35143_GPIO_IN		( UCB_IO_0 | UCB_IO_2 | UCB_IO_5 )
-#define COLLIE_TC35143_GPIO_OUT		( UCB_IO_1 | UCB_IO_3 | UCB_IO_4 | UCB_IO_6 | \
-					UCB_IO_7 | UCB_IO_8 | UCB_IO_9 )
+#define COLLIE_TC35143_GPIO_BASE	(GPIO_MAX + 13)
+#define COLLIE_TC35143_GPIO_VERSION0    UCB_IO_0
+#define COLLIE_TC35143_GPIO_TBL_CHK     UCB_IO_1
+#define COLLIE_TC35143_GPIO_VPEN_ON     UCB_IO_2
+#define COLLIE_TC35143_GPIO_IR_ON       UCB_IO_3
+#define COLLIE_TC35143_GPIO_AMP_ON      UCB_IO_4
+#define COLLIE_TC35143_GPIO_VERSION1    UCB_IO_5
+#define COLLIE_TC35143_GPIO_FS8KLPF     UCB_IO_5
+#define COLLIE_TC35143_GPIO_BUZZER_BIAS UCB_IO_6
+#define COLLIE_GPIO_MBAT_ON     	(COLLIE_TC35143_GPIO_BASE + 7)
+#define COLLIE_GPIO_BBAT_ON     	(COLLIE_TC35143_GPIO_BASE + 8)
+#define COLLIE_GPIO_TMP_ON      	(COLLIE_TC35143_GPIO_BASE + 9)
+#define COLLIE_TC35143_GPIO_IN		(UCB_IO_0 | UCB_IO_2 | UCB_IO_5)
+#define COLLIE_TC35143_GPIO_OUT		(UCB_IO_1 | UCB_IO_3 | UCB_IO_4 \
+						| UCB_IO_6)
 
 #endif

arch/arm/mach-sa1100/include/mach/gpio.h

@@ -49,20 +49,9 @@ static inline void gpio_set_value(unsigned gpio, int value)
 
 #define gpio_cansleep	__gpio_cansleep
 
-static inline unsigned gpio_to_irq(unsigned gpio)
-{
-	if (gpio < 11)
-		return IRQ_GPIO0 + gpio;
-	else
-		return IRQ_GPIO11 - 11 + gpio;
-}
-
-static inline unsigned irq_to_gpio(unsigned irq)
-{
-	if (irq < IRQ_GPIO11_27)
-		return irq - IRQ_GPIO0;
-	else
-		return irq - IRQ_GPIO11 + 11;
-}
+#define gpio_to_irq(gpio)	((gpio < 11) ? (IRQ_GPIO0 + gpio) : \
+					(IRQ_GPIO11 - 11 + gpio))
+#define irq_to_gpio(irq)	((irq < IRQ_GPIO11_27) ? (irq - IRQ_GPIO0) : \
+					(irq - IRQ_GPIO11 + 11))
 
 #endif

arch/arm/mach-sa1100/include/mach/mcp.h

@@ -16,6 +16,7 @@ struct mcp_plat_data {
 	u32 mccr0;
 	u32 mccr1;
 	unsigned int sclk_rate;
+	int gpio_base;
 };
 
 #endif

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,
 };
 

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)

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);
 

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, \

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)

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 {

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

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

drivers/power/collie_battery.c

+/*
+ * 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;