Commit 441a499e authored by Anton Vorontsov's avatar Anton Vorontsov
Browse files

Merge branch 'for-mfd-and-power' of git://git.linaro.org/people/ljones/linux-3.0-ux500 

From Lee Jones <lee.jones@linaro.org>:

"Please find the next instalment of the AB8500 Power drivers upgrade. A lot of
work has taken place on the internal development track, but little effort has
gone into mainlining it. There is a large backlog of patches which are in need
of forward-porting, then upstreaming. This patch-set aims to make a large dent
into them."

Conflicts:
	drivers/mfd/ab8500-gpadc.c
parents a937536b b09f86db

drivers/mfd/ab8500-core.c

+408 −136
Original line number Diff line number Diff line
@@ -95,6 +95,7 @@ 
#define AB8500_IT_MASK22_REG		0x55

#define AB8500_IT_MASK23_REG		0x56

#define AB8500_IT_MASK24_REG		0x57

#define AB8500_IT_MASK25_REG		0x58



/*

 * latch hierarchy registers
@@ -102,15 +103,25 @@ 
#define AB8500_IT_LATCHHIER1_REG	0x60

#define AB8500_IT_LATCHHIER2_REG	0x61

#define AB8500_IT_LATCHHIER3_REG	0x62

#define AB8540_IT_LATCHHIER4_REG	0x63



#define AB8500_IT_LATCHHIER_NUM		3

#define AB8540_IT_LATCHHIER_NUM		4



#define AB8500_REV_REG			0x80

#define AB8500_IC_NAME_REG		0x82

#define AB8500_SWITCH_OFF_STATUS	0x00



#define AB8500_TURN_ON_STATUS		0x00

#define AB8505_TURN_ON_STATUS_2	0x04



#define AB8500_CH_USBCH_STAT1_REG	0x02

#define VBUS_DET_DBNC100		0x02

#define VBUS_DET_DBNC1			0x01



static DEFINE_SPINLOCK(on_stat_lock);

static u8 turn_on_stat_mask = 0xFF;

static u8 turn_on_stat_set;

static bool no_bm; /* No battery management */

module_param(no_bm, bool, S_IRUGO);
@@ -130,9 +141,15 @@ static const int ab8500_irq_regoffset[AB8500_NUM_IRQ_REGS] = { 
	0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21,

};



/* AB9540 support */

/* AB9540 / AB8505 support */

static const int ab9540_irq_regoffset[AB9540_NUM_IRQ_REGS] = {

	0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21, 12, 13, 24,

	0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21, 12, 13, 24, 5, 22, 23

};



/* AB8540 support */

static const int ab8540_irq_regoffset[AB8540_NUM_IRQ_REGS] = {

	0, 1, 2, 3, 4, -1, -1, -1, -1, 11, 18, 19, 20, 21, 12, 13, 24, 5, 22, 23,

	25, 26, 27, 28, 29, 30, 31,

};



static const char ab8500_version_str[][7] = {
@@ -352,6 +369,9 @@ static void ab8500_irq_sync_unlock(struct irq_data *data) 
			is_ab8500_1p1_or_earlier(ab8500))

			continue;



		if (ab8500->irq_reg_offset[i] < 0)

			continue;



		ab8500->oldmask[i] = new;



		reg = AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i];
@@ -423,6 +443,18 @@ static struct irq_chip ab8500_irq_chip = { 
	.irq_set_type		= ab8500_irq_set_type,

};



static void update_latch_offset(u8 *offset, int i)

{

	/* Fix inconsistent ITFromLatch25 bit mapping... */

	if (unlikely(*offset == 17))

			*offset = 24;

	/* Fix inconsistent ab8540 bit mapping... */

	if (unlikely(*offset == 16))

			*offset = 25;

	if ((i==3) && (*offset >= 24))

			*offset += 2;

}



static int ab8500_handle_hierarchical_line(struct ab8500 *ab8500,

					int latch_offset, u8 latch_val)

{
@@ -474,9 +506,7 @@ static int ab8500_handle_hierarchical_latch(struct ab8500 *ab8500, 
		latch_bit = __ffs(hier_val);

		latch_offset = (hier_offset << 3) + latch_bit;



		/* Fix inconsistent ITFromLatch25 bit mapping... */

		if (unlikely(latch_offset == 17))

			latch_offset = 24;

		update_latch_offset(&latch_offset, hier_offset);



		status = get_register_interruptible(ab8500,

				AB8500_INTERRUPT,
@@ -504,7 +534,7 @@ static irqreturn_t ab8500_hierarchical_irq(int irq, void *dev) 
	dev_vdbg(ab8500->dev, "interrupt\n");



	/*  Hierarchical interrupt version */

	for (i = 0; i < AB8500_IT_LATCHHIER_NUM; i++) {

	for (i = 0; i < (ab8500->it_latchhier_num); i++) {

		int status;

		u8 hier_val;
@@ -520,63 +550,6 @@ static irqreturn_t ab8500_hierarchical_irq(int irq, void *dev) 
	return IRQ_HANDLED;

}



/**

 * ab8500_irq_get_virq(): Map an interrupt on a chip to a virtual IRQ

 *

 * @ab8500: ab8500_irq controller to operate on.

 * @irq: index of the interrupt requested in the chip IRQs

 *

 * Useful for drivers to request their own IRQs.

 */

static int ab8500_irq_get_virq(struct ab8500 *ab8500, int irq)

{

	if (!ab8500)

		return -EINVAL;



	return irq_create_mapping(ab8500->domain, irq);

}



static irqreturn_t ab8500_irq(int irq, void *dev)

{

	struct ab8500 *ab8500 = dev;

	int i;



	dev_vdbg(ab8500->dev, "interrupt\n");



	atomic_inc(&ab8500->transfer_ongoing);



	for (i = 0; i < ab8500->mask_size; i++) {

		int regoffset = ab8500->irq_reg_offset[i];

		int status;

		u8 value;



		/*

		 * Interrupt register 12 doesn't exist prior to AB8500 version

		 * 2.0

		 */

		if (regoffset == 11 && is_ab8500_1p1_or_earlier(ab8500))

			continue;



		status = get_register_interruptible(ab8500, AB8500_INTERRUPT,

			AB8500_IT_LATCH1_REG + regoffset, &value);

		if (status < 0 || value == 0)

			continue;



		do {

			int bit = __ffs(value);

			int line = i * 8 + bit;

			int virq = ab8500_irq_get_virq(ab8500, line);



			handle_nested_irq(virq);

			ab8500_debug_register_interrupt(line);

			value &= ~(1 << bit);



		} while (value);

	}

	atomic_dec(&ab8500->transfer_ongoing);

	return IRQ_HANDLED;

}



static int ab8500_irq_map(struct irq_domain *d, unsigned int virq,

				irq_hw_number_t hwirq)

{
@@ -607,7 +580,9 @@ static int ab8500_irq_init(struct ab8500 *ab8500, struct device_node *np) 
{

	int num_irqs;



	if (is_ab9540(ab8500))

	if (is_ab8540(ab8500))

		num_irqs = AB8540_NR_IRQS;

	else if (is_ab9540(ab8500))

		num_irqs = AB9540_NR_IRQS;

	else if (is_ab8505(ab8500))

		num_irqs = AB8505_NR_IRQS;
@@ -650,6 +625,15 @@ static struct resource ab8500_gpadc_resources[] = { 
	},

};



static struct resource ab8505_gpadc_resources[] = {

	{

		.name	= "SW_CONV_END",

		.start	= AB8500_INT_GP_SW_ADC_CONV_END,

		.end	= AB8500_INT_GP_SW_ADC_CONV_END,

		.flags	= IORESOURCE_IRQ,

	},

};



static struct resource ab8500_rtc_resources[] = {

	{

		.name	= "60S",
@@ -973,6 +957,30 @@ static struct resource ab8505_iddet_resources[] = { 
		.end   = AB8505_INT_KEYSTUCK,

		.flags = IORESOURCE_IRQ,

	},

	{

		.name = "VBUS_DET_R",

		.start = AB8500_INT_VBUS_DET_R,

		.end = AB8500_INT_VBUS_DET_R,

		.flags = IORESOURCE_IRQ,

	},

	{

		.name = "VBUS_DET_F",

		.start = AB8500_INT_VBUS_DET_F,

		.end = AB8500_INT_VBUS_DET_F,

		.flags = IORESOURCE_IRQ,

	},

	{

		.name = "ID_DET_PLUGR",

		.start = AB8500_INT_ID_DET_PLUGR,

		.end = AB8500_INT_ID_DET_PLUGR,

		.flags = IORESOURCE_IRQ,

	},

	{

		.name = "ID_DET_PLUGF",

		.start = AB8500_INT_ID_DET_PLUGF,

		.end = AB8500_INT_ID_DET_PLUGF,

		.flags = IORESOURCE_IRQ,

	},

};



static struct resource ab8500_temp_resources[] = {
@@ -984,7 +992,42 @@ static struct resource ab8500_temp_resources[] = { 
	},

};



static struct mfd_cell abx500_common_devs[] = {

static struct mfd_cell ab8500_bm_devs[] = {

	{

		.name = "ab8500-charger",

		.of_compatible = "stericsson,ab8500-charger",

		.num_resources = ARRAY_SIZE(ab8500_charger_resources),

		.resources = ab8500_charger_resources,

		.platform_data = &ab8500_bm_data,

		.pdata_size = sizeof(ab8500_bm_data),

	},

	{

		.name = "ab8500-btemp",

		.of_compatible = "stericsson,ab8500-btemp",

		.num_resources = ARRAY_SIZE(ab8500_btemp_resources),

		.resources = ab8500_btemp_resources,

		.platform_data = &ab8500_bm_data,

		.pdata_size = sizeof(ab8500_bm_data),

	},

	{

		.name = "ab8500-fg",

		.of_compatible = "stericsson,ab8500-fg",

		.num_resources = ARRAY_SIZE(ab8500_fg_resources),

		.resources = ab8500_fg_resources,

		.platform_data = &ab8500_bm_data,

		.pdata_size = sizeof(ab8500_bm_data),

	},

	{

		.name = "ab8500-chargalg",

		.of_compatible = "stericsson,ab8500-chargalg",

		.num_resources = ARRAY_SIZE(ab8500_chargalg_resources),

		.resources = ab8500_chargalg_resources,

		.platform_data = &ab8500_bm_data,

		.pdata_size = sizeof(ab8500_bm_data),

	},

};



static struct mfd_cell ab8500_devs[] = {

#ifdef CONFIG_DEBUG_FS

	{

		.name = "ab8500-debug",
@@ -1007,7 +1050,6 @@ static struct mfd_cell abx500_common_devs[] = { 
	},

	{

		.name = "ab8500-gpadc",

		.of_compatible = "stericsson,ab8500-gpadc",

		.num_resources = ARRAY_SIZE(ab8500_gpadc_resources),

		.resources = ab8500_gpadc_resources,

	},
@@ -1024,6 +1066,7 @@ static struct mfd_cell abx500_common_devs[] = { 
		.resources = ab8500_av_acc_detect_resources,

	},

	{



		.name = "ab8500-poweron-key",

		.of_compatible = "stericsson,ab8500-poweron-key",

		.num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
@@ -1052,83 +1095,221 @@ static struct mfd_cell abx500_common_devs[] = { 
		.name = "ab8500-denc",

		.of_compatible = "stericsson,ab8500-denc",

	},

	{

		.name = "ab8500-gpio",

		.of_compatible = "stericsson,ab8500-gpio",

	},

	{

		.name = "abx500-temp",

		.of_compatible = "stericsson,abx500-temp",

		.num_resources = ARRAY_SIZE(ab8500_temp_resources),

		.resources = ab8500_temp_resources,

	},

	{

		.name = "ab8500-usb",

		.num_resources = ARRAY_SIZE(ab8500_usb_resources),

		.resources = ab8500_usb_resources,

	},

	{

		.name = "ab8500-codec",

	},

};



static struct mfd_cell ab8500_bm_devs[] = {

static struct mfd_cell ab9540_devs[] = {

#ifdef CONFIG_DEBUG_FS

	{

		.name = "ab8500-charger",

		.of_compatible = "stericsson,ab8500-charger",

		.num_resources = ARRAY_SIZE(ab8500_charger_resources),

		.resources = ab8500_charger_resources,

		.platform_data = &ab8500_bm_data,

		.pdata_size = sizeof(ab8500_bm_data),

		.name = "ab8500-debug",

		.num_resources = ARRAY_SIZE(ab8500_debug_resources),

		.resources = ab8500_debug_resources,

	},

#endif

	{

		.name = "ab8500-btemp",

		.of_compatible = "stericsson,ab8500-btemp",

		.num_resources = ARRAY_SIZE(ab8500_btemp_resources),

		.resources = ab8500_btemp_resources,

		.platform_data = &ab8500_bm_data,

		.pdata_size = sizeof(ab8500_bm_data),

		.name = "ab8500-sysctrl",

	},

	{

		.name = "ab8500-fg",

		.of_compatible = "stericsson,ab8500-fg",

		.num_resources = ARRAY_SIZE(ab8500_fg_resources),

		.resources = ab8500_fg_resources,

		.platform_data = &ab8500_bm_data,

		.pdata_size = sizeof(ab8500_bm_data),

		.name = "ab8500-regulator",

	},

	{

		.name = "ab8500-chargalg",

		.of_compatible = "stericsson,ab8500-chargalg",

		.num_resources = ARRAY_SIZE(ab8500_chargalg_resources),

		.resources = ab8500_chargalg_resources,

		.platform_data = &ab8500_bm_data,

		.pdata_size = sizeof(ab8500_bm_data),

		.name = "abx500-clk",

		.of_compatible = "stericsson,abx500-clk",

	},

	{

		.name = "ab8500-gpadc",

		.of_compatible = "stericsson,ab8500-gpadc",

		.num_resources = ARRAY_SIZE(ab8500_gpadc_resources),

		.resources = ab8500_gpadc_resources,

	},

	{

		.name = "ab8500-rtc",

		.num_resources = ARRAY_SIZE(ab8500_rtc_resources),

		.resources = ab8500_rtc_resources,

	},

	{

		.name = "ab8500-acc-det",

		.num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),

		.resources = ab8500_av_acc_detect_resources,

	},

	{

		.name = "ab8500-poweron-key",

		.num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),

		.resources = ab8500_poweronkey_db_resources,

	},

	{

		.name = "ab8500-pwm",

		.id = 1,

	},

	{

		.name = "ab8500-leds",

	},

	{

		.name = "abx500-temp",

		.num_resources = ARRAY_SIZE(ab8500_temp_resources),

		.resources = ab8500_temp_resources,

	},

	{

		.name = "pinctrl-ab9540",

		.of_compatible = "stericsson,ab9540-gpio",

	},

	{

		.name = "ab9540-usb",

		.num_resources = ARRAY_SIZE(ab8500_usb_resources),

		.resources = ab8500_usb_resources,

	},

	{

		.name = "ab9540-codec",

	},

	{

		.name = "ab-iddet",

		.num_resources = ARRAY_SIZE(ab8505_iddet_resources),

		.resources = ab8505_iddet_resources,

	},

};



static struct mfd_cell ab8500_devs[] = {

/* Device list for ab8505  */

static struct mfd_cell ab8505_devs[] = {

#ifdef CONFIG_DEBUG_FS

	{

		.name = "pinctrl-ab8500",

		.of_compatible = "stericsson,ab8500-gpio",

		.name = "ab8500-debug",

		.num_resources = ARRAY_SIZE(ab8500_debug_resources),

		.resources = ab8500_debug_resources,

	},

#endif

	{

		.name = "ab8500-sysctrl",

	},

	{

		.name = "ab8500-regulator",

	},

	{

		.name = "abx500-clk",

		.of_compatible = "stericsson,abx500-clk",

	},

	{

		.name = "ab8500-gpadc",

		.num_resources = ARRAY_SIZE(ab8505_gpadc_resources),

		.resources = ab8505_gpadc_resources,

	},

	{

		.name = "ab8500-rtc",

		.num_resources = ARRAY_SIZE(ab8500_rtc_resources),

		.resources = ab8500_rtc_resources,

	},

	{

		.name = "ab8500-acc-det",

		.num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),

		.resources = ab8500_av_acc_detect_resources,

	},

	{

		.name = "ab8500-poweron-key",

		.num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),

		.resources = ab8500_poweronkey_db_resources,

	},

	{

		.name = "ab8500-pwm",

		.id = 1,

	},

	{

		.name = "ab8500-leds",

	},

	{

		.name = "ab8500-gpio",

	},

	{

		.name = "ab8500-usb",

		.of_compatible = "stericsson,ab8500-usb",

		.num_resources = ARRAY_SIZE(ab8500_usb_resources),

		.resources = ab8500_usb_resources,

	},

	{

		.name = "ab8500-codec",

		.of_compatible = "stericsson,ab8500-codec",

	},

	{

		.name = "ab-iddet",

		.num_resources = ARRAY_SIZE(ab8505_iddet_resources),

		.resources = ab8505_iddet_resources,

	},

};



static struct mfd_cell ab9540_devs[] = {

static struct mfd_cell ab8540_devs[] = {

#ifdef CONFIG_DEBUG_FS

	{

		.name = "pinctrl-ab9540",

		.of_compatible = "stericsson,ab9540-gpio",

		.name = "ab8500-debug",

		.num_resources = ARRAY_SIZE(ab8500_debug_resources),

		.resources = ab8500_debug_resources,

	},

#endif

	{

		.name = "ab9540-usb",

		.name = "ab8500-sysctrl",

	},

	{

		.name = "ab8500-regulator",

	},

	{

		.name = "abx500-clk",

		.of_compatible = "stericsson,abx500-clk",

	},

	{

		.name = "ab8500-gpadc",

		.num_resources = ARRAY_SIZE(ab8505_gpadc_resources),

		.resources = ab8505_gpadc_resources,

	},

	{

		.name = "ab8500-rtc",

		.num_resources = ARRAY_SIZE(ab8500_rtc_resources),

		.resources = ab8500_rtc_resources,

	},

	{

		.name = "ab8500-acc-det",

		.num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),

		.resources = ab8500_av_acc_detect_resources,

	},

	{

		.name = "ab8500-poweron-key",

		.num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),

		.resources = ab8500_poweronkey_db_resources,

	},

	{

		.name = "ab8500-pwm",

		.id = 1,

	},

	{

		.name = "ab8500-leds",

	},

	{

		.name = "abx500-temp",

		.num_resources = ARRAY_SIZE(ab8500_temp_resources),

		.resources = ab8500_temp_resources,

	},

	{

		.name = "ab8500-gpio",

	},

	{

		.name = "ab8540-usb",

		.num_resources = ARRAY_SIZE(ab8500_usb_resources),

		.resources = ab8500_usb_resources,

	},

	{

		.name = "ab9540-codec",

		.name = "ab8540-codec",

	},

};



/* Device list common to ab9540 and ab8505 */

static struct mfd_cell ab9540_ab8505_devs[] = {

	{

		.name = "ab-iddet",

		.num_resources = ARRAY_SIZE(ab8505_iddet_resources),
@@ -1142,6 +1323,7 @@ static ssize_t show_chip_id(struct device *dev, 
	struct ab8500 *ab8500;



	ab8500 = dev_get_drvdata(dev);



	return sprintf(buf, "%#x\n", ab8500 ? ab8500->chip_id : -EINVAL);

}
@@ -1171,6 +1353,15 @@ static ssize_t show_switch_off_status(struct device *dev, 
	return sprintf(buf, "%#x\n", value);

}



/* use mask and set to override the register turn_on_stat value */

void ab8500_override_turn_on_stat(u8 mask, u8 set)

{

	spin_lock(&on_stat_lock);

	turn_on_stat_mask = mask;

	turn_on_stat_set = set;

	spin_unlock(&on_stat_lock);

}



/*

 * ab8500 has turned on due to (TURN_ON_STATUS):

 * 0x01 PORnVbat
@@ -1194,9 +1385,38 @@ static ssize_t show_turn_on_status(struct device *dev, 
		AB8500_TURN_ON_STATUS, &value);

	if (ret < 0)

		return ret;



	/*

	 * In L9540, turn_on_status register is not updated correctly if

	 * the device is rebooted with AC/USB charger connected. Due to

	 * this, the device boots android instead of entering into charge

	 * only mode. Read the AC/USB status register to detect the charger

	 * presence and update the turn on status manually.

	 */

	if (is_ab9540(ab8500)) {

		spin_lock(&on_stat_lock);

		value = (value & turn_on_stat_mask) | turn_on_stat_set;

		spin_unlock(&on_stat_lock);

	}



	return sprintf(buf, "%#x\n", value);

}



static ssize_t show_turn_on_status_2(struct device *dev,

				struct device_attribute *attr, char *buf)

{

	int ret;

	u8 value;

	struct ab8500 *ab8500;



	ab8500 = dev_get_drvdata(dev);

	ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,

		AB8505_TURN_ON_STATUS_2, &value);

	if (ret < 0)

		return ret;

	return sprintf(buf, "%#x\n", (value & 0x1));

}



static ssize_t show_ab9540_dbbrstn(struct device *dev,

				struct device_attribute *attr, char *buf)

{
@@ -1253,6 +1473,7 @@ exit: 
static DEVICE_ATTR(chip_id, S_IRUGO, show_chip_id, NULL);

static DEVICE_ATTR(switch_off_status, S_IRUGO, show_switch_off_status, NULL);

static DEVICE_ATTR(turn_on_status, S_IRUGO, show_turn_on_status, NULL);

static DEVICE_ATTR(turn_on_status_2, S_IRUGO, show_turn_on_status_2, NULL);

static DEVICE_ATTR(dbbrstn, S_IRUGO | S_IWUSR,

			show_ab9540_dbbrstn, store_ab9540_dbbrstn);
@@ -1263,6 +1484,11 @@ static struct attribute *ab8500_sysfs_entries[] = { 
	NULL,

};



static struct attribute *ab8505_sysfs_entries[] = {

	&dev_attr_turn_on_status_2.attr,

	NULL,

};



static struct attribute *ab9540_sysfs_entries[] = {

	&dev_attr_chip_id.attr,

	&dev_attr_switch_off_status.attr,
@@ -1275,6 +1501,10 @@ static struct attribute_group ab8500_attr_group = { 
	.attrs	= ab8500_sysfs_entries,

};



static struct attribute_group ab8505_attr_group = {

	.attrs	= ab8505_sysfs_entries,

};



static struct attribute_group ab9540_attr_group = {

	.attrs	= ab9540_sysfs_entries,

};
@@ -1290,6 +1520,15 @@ static int ab8500_probe(struct platform_device *pdev) 
		"Battery level lower than power on reset threshold",

		"Power on key 1 pressed longer than 10 seconds",

		"DB8500 thermal shutdown"};

	static char *turn_on_status[] = {

		"Battery rising (Vbat)",

		"Power On Key 1 dbF",

		"Power On Key 2 dbF",

		"RTC Alarm",

		"Main Charger Detect",

		"Vbus Detect (USB)",

		"USB ID Detect",

		"UART Factory Mode Detect"};

	struct ab8500_platform_data *plat = dev_get_platdata(&pdev->dev);

	const struct platform_device_id *platid = platform_get_device_id(pdev);

	enum ab8500_version version = AB8500_VERSION_UNDEFINED;
@@ -1351,13 +1590,20 @@ static int ab8500_probe(struct platform_device *pdev) 
			ab8500->chip_id >> 4,

			ab8500->chip_id & 0x0F);



	/* Configure AB8500 or AB9540 IRQ */

	if (is_ab9540(ab8500) || is_ab8505(ab8500)) {

	/* Configure AB8540 */

	if (is_ab8540(ab8500)) {

		ab8500->mask_size = AB8540_NUM_IRQ_REGS;

		ab8500->irq_reg_offset = ab8540_irq_regoffset;

		ab8500->it_latchhier_num = AB8540_IT_LATCHHIER_NUM;

	}/* Configure AB8500 or AB9540 IRQ */

	else if (is_ab9540(ab8500) || is_ab8505(ab8500)) {

		ab8500->mask_size = AB9540_NUM_IRQ_REGS;

		ab8500->irq_reg_offset = ab9540_irq_regoffset;

		ab8500->it_latchhier_num = AB8500_IT_LATCHHIER_NUM;

	} else {

		ab8500->mask_size = AB8500_NUM_IRQ_REGS;

		ab8500->irq_reg_offset = ab8500_irq_regoffset;

		ab8500->it_latchhier_num = AB8500_IT_LATCHHIER_NUM;

	}

	ab8500->mask = devm_kzalloc(&pdev->dev, ab8500->mask_size, GFP_KERNEL);

	if (!ab8500->mask)
@@ -1396,10 +1642,36 @@ static int ab8500_probe(struct platform_device *pdev) 
	} else {

		printk(KERN_CONT " None\n");

	}

	ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,

		AB8500_TURN_ON_STATUS, &value);

	if (ret < 0)

		return ret;

	dev_info(ab8500->dev, "turn on reason(s) (%#x): ", value);



	if (value) {

		for (i = 0; i < ARRAY_SIZE(turn_on_status); i++) {

			if (value & 1)

				printk("\"%s\" ", turn_on_status[i]);

			value = value >> 1;

		}

		printk("\n");

	} else {

		printk("None\n");

	}



	if (plat && plat->init)

		plat->init(ab8500);



	if (is_ab9540(ab8500)) {

		ret = get_register_interruptible(ab8500, AB8500_CHARGER,

			AB8500_CH_USBCH_STAT1_REG, &value);

		if (ret < 0)

			return ret;

		if ((value & VBUS_DET_DBNC1) && (value & VBUS_DET_DBNC100))

			ab8500_override_turn_on_stat(~AB8500_POW_KEY_1_ON,

						     AB8500_VBUS_DET);

	}



	/* Clear and mask all interrupts */

	for (i = 0; i < ab8500->mask_size; i++) {

		/*
@@ -1410,6 +1682,9 @@ static int ab8500_probe(struct platform_device *pdev) 
				is_ab8500_1p1_or_earlier(ab8500))

			continue;



		if (ab8500->irq_reg_offset[i] < 0)

			continue;



		get_register_interruptible(ab8500, AB8500_INTERRUPT,

			AB8500_IT_LATCH1_REG + ab8500->irq_reg_offset[i],

			&value);
@@ -1428,26 +1703,10 @@ static int ab8500_probe(struct platform_device *pdev) 
	if (ret)

		return ret;



	/*  Activate this feature only in ab9540 */

	/*  till tests are done on ab8500 1p2 or later*/

	if (is_ab9540(ab8500)) {

	ret = devm_request_threaded_irq(&pdev->dev, ab8500->irq, NULL,

			ab8500_hierarchical_irq,

			IRQF_ONESHOT | IRQF_NO_SUSPEND,

			"ab8500", ab8500);

	}

	else {

		ret = devm_request_threaded_irq(&pdev->dev, ab8500->irq, NULL,

						ab8500_irq,

						IRQF_ONESHOT | IRQF_NO_SUSPEND,

						"ab8500", ab8500);

		if (ret)

			return ret;

	}



	ret = mfd_add_devices(ab8500->dev, 0, abx500_common_devs,

			ARRAY_SIZE(abx500_common_devs), NULL,

			ab8500->irq_base, ab8500->domain);

	if (ret)

		return ret;
@@ -1455,6 +1714,14 @@ static int ab8500_probe(struct platform_device *pdev) 
		ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs,

				ARRAY_SIZE(ab9540_devs), NULL,

				ab8500->irq_base, ab8500->domain);

	else if (is_ab8540(ab8500))

		ret = mfd_add_devices(ab8500->dev, 0, ab8540_devs,

			      ARRAY_SIZE(ab8540_devs), NULL,

			      ab8500->irq_base, ab8500->domain);

	else if (is_ab8505(ab8500))

		ret = mfd_add_devices(ab8500->dev, 0, ab8505_devs,

			      ARRAY_SIZE(ab8505_devs), NULL,

			      ab8500->irq_base, ab8500->domain);

	else

		ret = mfd_add_devices(ab8500->dev, 0, ab8500_devs,

				ARRAY_SIZE(ab8500_devs), NULL,
@@ -1462,13 +1729,6 @@ static int ab8500_probe(struct platform_device *pdev) 
	if (ret)

		return ret;



	if (is_ab9540(ab8500) || is_ab8505(ab8500))

		ret = mfd_add_devices(ab8500->dev, 0, ab9540_ab8505_devs,

				ARRAY_SIZE(ab9540_ab8505_devs), NULL,

				ab8500->irq_base, ab8500->domain);

	if (ret)

		return ret;



	if (!no_bm) {

		/* Add battery management devices */

		ret = mfd_add_devices(ab8500->dev, 0, ab8500_bm_devs,
@@ -1478,12 +1738,19 @@ static int ab8500_probe(struct platform_device *pdev) 
			dev_err(ab8500->dev, "error adding bm devices\n");

	}



	if (is_ab9540(ab8500))

	if (((is_ab8505(ab8500) || is_ab9540(ab8500)) &&

			ab8500->chip_id >= AB8500_CUT2P0) || is_ab8540(ab8500))

		ret = sysfs_create_group(&ab8500->dev->kobj,

					&ab9540_attr_group);

	else

		ret = sysfs_create_group(&ab8500->dev->kobj,

					&ab8500_attr_group);



	if ((is_ab8505(ab8500) || is_ab9540(ab8500)) &&

			ab8500->chip_id >= AB8500_CUT2P0)

		ret = sysfs_create_group(&ab8500->dev->kobj,

					 &ab8505_attr_group);



	if (ret)

		dev_err(ab8500->dev, "error creating sysfs entries\n");
@@ -1494,11 +1761,16 @@ static int ab8500_remove(struct platform_device *pdev) 
{

	struct ab8500 *ab8500 = platform_get_drvdata(pdev);



	if (is_ab9540(ab8500))

	if (((is_ab8505(ab8500) || is_ab9540(ab8500)) &&

			ab8500->chip_id >= AB8500_CUT2P0) || is_ab8540(ab8500))

		sysfs_remove_group(&ab8500->dev->kobj, &ab9540_attr_group);

	else

		sysfs_remove_group(&ab8500->dev->kobj, &ab8500_attr_group);



	if ((is_ab8505(ab8500) || is_ab9540(ab8500)) &&

			ab8500->chip_id >= AB8500_CUT2P0)

		sysfs_remove_group(&ab8500->dev->kobj, &ab8505_attr_group);



	mfd_remove_devices(ab8500->dev);



	return 0;

drivers/mfd/ab8500-debugfs.c

+2006 −553

File changed.

Preview size limit exceeded, changes collapsed.

drivers/mfd/ab8500-gpadc.c

+456 −103

File changed.

Preview size limit exceeded, changes collapsed.

drivers/mfd/ab8500-sysctrl.c

+87 −11
Original line number Diff line number Diff line
@@ -15,19 +15,30 @@ 
#include <linux/mfd/abx500/ab8500.h>

#include <linux/mfd/abx500/ab8500-sysctrl.h>



/* RtcCtrl bits */

#define AB8500_ALARM_MIN_LOW  0x08

#define AB8500_ALARM_MIN_MID 0x09

#define RTC_CTRL 0x0B

#define RTC_ALARM_ENABLE 0x4



static struct device *sysctrl_dev;



void ab8500_power_off(void)

{

	sigset_t old;

	sigset_t all;

	static char *pss[] = {"ab8500_ac", "ab8500_usb"};

	static char *pss[] = {"ab8500_ac", "pm2301", "ab8500_usb"};

	int i;

	bool charger_present = false;

	union power_supply_propval val;

	struct power_supply *psy;

	int ret;



	if (sysctrl_dev == NULL) {

		pr_err("%s: sysctrl not initialized\n", __func__);

		return;

	}



	/*

	 * If we have a charger connected and we're powering off,

	 * reboot into charge-only mode.
@@ -74,6 +85,63 @@ shutdown: 
	}

}



/*

 * Use the AB WD to reset the platform. It will perform a hard

 * reset instead of a soft reset. Write the reset reason to

 * the AB before reset, which can be read upon restart.

 */

void ab8500_restart(char mode, const char *cmd)

{

	struct ab8500_platform_data *plat;

	struct ab8500_sysctrl_platform_data *pdata;

	u16 reason = 0;

	u8 val;



	if (sysctrl_dev == NULL) {

		pr_err("%s: sysctrl not initialized\n", __func__);

		return;

	}



	plat = dev_get_platdata(sysctrl_dev->parent);

	pdata = plat->sysctrl;

	if (pdata->reboot_reason_code)

		reason = pdata->reboot_reason_code(cmd);

	else

		pr_warn("[%s] No reboot reason set. Default reason %d\n",

			__func__, reason);



	/*

	 * Disable RTC alarm, just a precaution so that no alarm

	 * is running when WD reset is executed.

	 */

	abx500_get_register_interruptible(sysctrl_dev, AB8500_RTC,

		RTC_CTRL , &val);

	abx500_set_register_interruptible(sysctrl_dev, AB8500_RTC,

		RTC_CTRL , (val & ~RTC_ALARM_ENABLE));



	/*

	 * Android is not using the RTC alarm registers during reboot

	 * so we borrow them for writing the reason of reset

	 */



	/* reason[8 LSB] */

	val = reason & 0xFF;

	abx500_set_register_interruptible(sysctrl_dev, AB8500_RTC,

		AB8500_ALARM_MIN_LOW , val);



	/* reason[8 MSB] */

	val = (reason>>8) & 0xFF;

	abx500_set_register_interruptible(sysctrl_dev, AB8500_RTC,

		AB8500_ALARM_MIN_MID , val);



	/* Setting WD timeout to 0 */

	ab8500_sysctrl_write(AB8500_MAINWDOGTIMER, 0xFF, 0x0);



	/* Setting the parameters to AB8500 WD*/

	ab8500_sysctrl_write(AB8500_MAINWDOGCTRL, 0xFF, (AB8500_ENABLE_WD |

		AB8500_WD_RESTART_ON_EXPIRE | AB8500_KICK_WD));

}



static inline bool valid_bank(u8 bank)

{

	return ((bank == AB8500_SYS_CTRL1_BLOCK) ||
@@ -85,7 +153,7 @@ int ab8500_sysctrl_read(u16 reg, u8 *value) 
	u8 bank;



	if (sysctrl_dev == NULL)

		return -EAGAIN;

		return -EINVAL;



	bank = (reg >> 8);

	if (!valid_bank(bank))
@@ -101,7 +169,7 @@ int ab8500_sysctrl_write(u16 reg, u8 mask, u8 value) 
	u8 bank;



	if (sysctrl_dev == NULL)

		return -EAGAIN;

		return -EINVAL;



	bank = (reg >> 8);

	if (!valid_bank(bank))
@@ -114,21 +182,29 @@ EXPORT_SYMBOL(ab8500_sysctrl_write); 


static int ab8500_sysctrl_probe(struct platform_device *pdev)

{

	struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent);

	struct ab8500_platform_data *plat;

	struct ab8500_sysctrl_platform_data *pdata;



	sysctrl_dev = &pdev->dev;

	plat = dev_get_platdata(pdev->dev.parent);



	if (!(plat && plat->sysctrl))

		return -EINVAL;



	if (plat->pm_power_off)

		pm_power_off = ab8500_power_off;



	pdata = plat->sysctrl;



	if (pdata) {

		int ret, i, j;

		int last, ret, i, j;



		if (is_ab8505(ab8500))

			last = AB8500_SYSCLKREQ4RFCLKBUF;

		else

			last = AB8500_SYSCLKREQ8RFCLKBUF;



		for (i = AB8500_SYSCLKREQ1RFCLKBUF;

		     i <= AB8500_SYSCLKREQ8RFCLKBUF; i++) {

		for (i = AB8500_SYSCLKREQ1RFCLKBUF; i <= last; i++) {

			j = i - AB8500_SYSCLKREQ1RFCLKBUF;

			ret = ab8500_sysctrl_write(i, 0xff,

					pdata->initial_req_buf_config[j]);

drivers/power/Kconfig

+0 −7
Original line number Diff line number Diff line
@@ -353,13 +353,6 @@ config BATTERY_GOLDFISH 
	  Say Y to enable support for the battery and AC power in the

	  Goldfish emulator.



config CHARGER_PM2301

	bool "PM2301 Battery Charger Driver"

	depends on AB8500_BM

	help

	  Say Y to include support for PM2301 charger driver.

	  Depends on AB8500 battery management core.



source "drivers/power/reset/Kconfig"



endif # POWER_SUPPLY

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