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-rw-r--r--drivers/mfd/ab8500-core.c773
1 files changed, 634 insertions, 139 deletions
diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c
index f3d26fa9c34..e940c2e3f06 100644
--- a/drivers/mfd/ab8500-core.c
+++ b/drivers/mfd/ab8500-core.c
@@ -4,88 +4,83 @@
* License Terms: GNU General Public License v2
* Author: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
* Author: Rabin Vincent <rabin.vincent@stericsson.com>
+ * Author: Mattias Wallin <mattias.wallin@stericsson.com>
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/irq.h>
-#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/mfd/core.h>
+#include <linux/mfd/abx500.h>
#include <linux/mfd/ab8500.h>
+#include <linux/regulator/ab8500.h>
/*
* Interrupt register offsets
* Bank : 0x0E
*/
-#define AB8500_IT_SOURCE1_REG 0x0E00
-#define AB8500_IT_SOURCE2_REG 0x0E01
-#define AB8500_IT_SOURCE3_REG 0x0E02
-#define AB8500_IT_SOURCE4_REG 0x0E03
-#define AB8500_IT_SOURCE5_REG 0x0E04
-#define AB8500_IT_SOURCE6_REG 0x0E05
-#define AB8500_IT_SOURCE7_REG 0x0E06
-#define AB8500_IT_SOURCE8_REG 0x0E07
-#define AB8500_IT_SOURCE19_REG 0x0E12
-#define AB8500_IT_SOURCE20_REG 0x0E13
-#define AB8500_IT_SOURCE21_REG 0x0E14
-#define AB8500_IT_SOURCE22_REG 0x0E15
-#define AB8500_IT_SOURCE23_REG 0x0E16
-#define AB8500_IT_SOURCE24_REG 0x0E17
+#define AB8500_IT_SOURCE1_REG 0x00
+#define AB8500_IT_SOURCE2_REG 0x01
+#define AB8500_IT_SOURCE3_REG 0x02
+#define AB8500_IT_SOURCE4_REG 0x03
+#define AB8500_IT_SOURCE5_REG 0x04
+#define AB8500_IT_SOURCE6_REG 0x05
+#define AB8500_IT_SOURCE7_REG 0x06
+#define AB8500_IT_SOURCE8_REG 0x07
+#define AB8500_IT_SOURCE19_REG 0x12
+#define AB8500_IT_SOURCE20_REG 0x13
+#define AB8500_IT_SOURCE21_REG 0x14
+#define AB8500_IT_SOURCE22_REG 0x15
+#define AB8500_IT_SOURCE23_REG 0x16
+#define AB8500_IT_SOURCE24_REG 0x17
/*
* latch registers
*/
-#define AB8500_IT_LATCH1_REG 0x0E20
-#define AB8500_IT_LATCH2_REG 0x0E21
-#define AB8500_IT_LATCH3_REG 0x0E22
-#define AB8500_IT_LATCH4_REG 0x0E23
-#define AB8500_IT_LATCH5_REG 0x0E24
-#define AB8500_IT_LATCH6_REG 0x0E25
-#define AB8500_IT_LATCH7_REG 0x0E26
-#define AB8500_IT_LATCH8_REG 0x0E27
-#define AB8500_IT_LATCH9_REG 0x0E28
-#define AB8500_IT_LATCH10_REG 0x0E29
-#define AB8500_IT_LATCH19_REG 0x0E32
-#define AB8500_IT_LATCH20_REG 0x0E33
-#define AB8500_IT_LATCH21_REG 0x0E34
-#define AB8500_IT_LATCH22_REG 0x0E35
-#define AB8500_IT_LATCH23_REG 0x0E36
-#define AB8500_IT_LATCH24_REG 0x0E37
+#define AB8500_IT_LATCH1_REG 0x20
+#define AB8500_IT_LATCH2_REG 0x21
+#define AB8500_IT_LATCH3_REG 0x22
+#define AB8500_IT_LATCH4_REG 0x23
+#define AB8500_IT_LATCH5_REG 0x24
+#define AB8500_IT_LATCH6_REG 0x25
+#define AB8500_IT_LATCH7_REG 0x26
+#define AB8500_IT_LATCH8_REG 0x27
+#define AB8500_IT_LATCH9_REG 0x28
+#define AB8500_IT_LATCH10_REG 0x29
+#define AB8500_IT_LATCH12_REG 0x2B
+#define AB8500_IT_LATCH19_REG 0x32
+#define AB8500_IT_LATCH20_REG 0x33
+#define AB8500_IT_LATCH21_REG 0x34
+#define AB8500_IT_LATCH22_REG 0x35
+#define AB8500_IT_LATCH23_REG 0x36
+#define AB8500_IT_LATCH24_REG 0x37
/*
* mask registers
*/
-#define AB8500_IT_MASK1_REG 0x0E40
-#define AB8500_IT_MASK2_REG 0x0E41
-#define AB8500_IT_MASK3_REG 0x0E42
-#define AB8500_IT_MASK4_REG 0x0E43
-#define AB8500_IT_MASK5_REG 0x0E44
-#define AB8500_IT_MASK6_REG 0x0E45
-#define AB8500_IT_MASK7_REG 0x0E46
-#define AB8500_IT_MASK8_REG 0x0E47
-#define AB8500_IT_MASK9_REG 0x0E48
-#define AB8500_IT_MASK10_REG 0x0E49
-#define AB8500_IT_MASK11_REG 0x0E4A
-#define AB8500_IT_MASK12_REG 0x0E4B
-#define AB8500_IT_MASK13_REG 0x0E4C
-#define AB8500_IT_MASK14_REG 0x0E4D
-#define AB8500_IT_MASK15_REG 0x0E4E
-#define AB8500_IT_MASK16_REG 0x0E4F
-#define AB8500_IT_MASK17_REG 0x0E50
-#define AB8500_IT_MASK18_REG 0x0E51
-#define AB8500_IT_MASK19_REG 0x0E52
-#define AB8500_IT_MASK20_REG 0x0E53
-#define AB8500_IT_MASK21_REG 0x0E54
-#define AB8500_IT_MASK22_REG 0x0E55
-#define AB8500_IT_MASK23_REG 0x0E56
-#define AB8500_IT_MASK24_REG 0x0E57
-
-#define AB8500_REV_REG 0x1080
+#define AB8500_IT_MASK1_REG 0x40
+#define AB8500_IT_MASK2_REG 0x41
+#define AB8500_IT_MASK3_REG 0x42
+#define AB8500_IT_MASK4_REG 0x43
+#define AB8500_IT_MASK5_REG 0x44
+#define AB8500_IT_MASK6_REG 0x45
+#define AB8500_IT_MASK7_REG 0x46
+#define AB8500_IT_MASK8_REG 0x47
+#define AB8500_IT_MASK9_REG 0x48
+#define AB8500_IT_MASK10_REG 0x49
+#define AB8500_IT_MASK12_REG 0x4B
+#define AB8500_IT_MASK19_REG 0x52
+#define AB8500_IT_MASK20_REG 0x53
+#define AB8500_IT_MASK21_REG 0x54
+#define AB8500_IT_MASK22_REG 0x55
+
+#define AB8500_REV_REG 0x80
+#define AB8500_SWITCH_OFF_STATUS 0x00
/*
* Map interrupt numbers to the LATCH and MASK register offsets, Interrupt
@@ -95,99 +90,138 @@
* offset 0.
*/
static const int ab8500_irq_regoffset[AB8500_NUM_IRQ_REGS] = {
- 0, 1, 2, 3, 4, 6, 7, 8, 9, 18, 19, 20, 21,
+ 0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21,
};
-static int __ab8500_write(struct ab8500 *ab8500, u16 addr, u8 data)
+static int ab8500_get_chip_id(struct device *dev)
+{
+ struct ab8500 *ab8500;
+ if (!dev)
+ return -EINVAL;
+ ab8500 = dev_get_drvdata(dev->parent);
+ return ab8500 ? (int)ab8500->chip_id : -EINVAL;
+}
+
+static int set_register_interruptible(struct ab8500 *ab8500, u8 bank,
+ u8 reg, u8 data)
{
int ret;
+ /*
+ * Put the u8 bank and u8 register together into a an u16.
+ * The bank on higher 8 bits and register in lower 8 bits.
+ * */
+ u16 addr = ((u16)bank) << 8 | reg;
dev_vdbg(ab8500->dev, "wr: addr %#x <= %#x\n", addr, data);
+ ret = mutex_lock_interruptible(&ab8500->lock);
+ if (ret)
+ return ret;
+
ret = ab8500->write(ab8500, addr, data);
if (ret < 0)
dev_err(ab8500->dev, "failed to write reg %#x: %d\n",
addr, ret);
+ mutex_unlock(&ab8500->lock);
return ret;
}
-/**
- * ab8500_write() - write an AB8500 register
- * @ab8500: device to write to
- * @addr: address of the register
- * @data: value to write
- */
-int ab8500_write(struct ab8500 *ab8500, u16 addr, u8 data)
+static int ab8500_set_register(struct device *dev, u8 bank,
+ u8 reg, u8 value)
{
- int ret;
+ struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
- mutex_lock(&ab8500->lock);
- ret = __ab8500_write(ab8500, addr, data);
- mutex_unlock(&ab8500->lock);
-
- return ret;
+ return set_register_interruptible(ab8500, bank, reg, value);
}
-EXPORT_SYMBOL_GPL(ab8500_write);
-static int __ab8500_read(struct ab8500 *ab8500, u16 addr)
+static int get_register_interruptible(struct ab8500 *ab8500, u8 bank,
+ u8 reg, u8 *value)
{
int ret;
+ /* put the u8 bank and u8 reg together into a an u16.
+ * bank on higher 8 bits and reg in lower */
+ u16 addr = ((u16)bank) << 8 | reg;
+
+ ret = mutex_lock_interruptible(&ab8500->lock);
+ if (ret)
+ return ret;
ret = ab8500->read(ab8500, addr);
if (ret < 0)
dev_err(ab8500->dev, "failed to read reg %#x: %d\n",
addr, ret);
+ else
+ *value = ret;
+ mutex_unlock(&ab8500->lock);
dev_vdbg(ab8500->dev, "rd: addr %#x => data %#x\n", addr, ret);
return ret;
}
-/**
- * ab8500_read() - read an AB8500 register
- * @ab8500: device to read from
- * @addr: address of the register
- */
-int ab8500_read(struct ab8500 *ab8500, u16 addr)
+static int ab8500_get_register(struct device *dev, u8 bank,
+ u8 reg, u8 *value)
{
- int ret;
-
- mutex_lock(&ab8500->lock);
- ret = __ab8500_read(ab8500, addr);
- mutex_unlock(&ab8500->lock);
+ struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
- return ret;
+ return get_register_interruptible(ab8500, bank, reg, value);
}
-EXPORT_SYMBOL_GPL(ab8500_read);
-
-/**
- * ab8500_set_bits() - set a bitfield in an AB8500 register
- * @ab8500: device to read from
- * @addr: address of the register
- * @mask: mask of the bitfield to modify
- * @data: value to set to the bitfield
- */
-int ab8500_set_bits(struct ab8500 *ab8500, u16 addr, u8 mask, u8 data)
+
+static int mask_and_set_register_interruptible(struct ab8500 *ab8500, u8 bank,
+ u8 reg, u8 bitmask, u8 bitvalues)
{
int ret;
+ u8 data;
+ /* put the u8 bank and u8 reg together into a an u16.
+ * bank on higher 8 bits and reg in lower */
+ u16 addr = ((u16)bank) << 8 | reg;
- mutex_lock(&ab8500->lock);
+ ret = mutex_lock_interruptible(&ab8500->lock);
+ if (ret)
+ return ret;
- ret = __ab8500_read(ab8500, addr);
- if (ret < 0)
+ ret = ab8500->read(ab8500, addr);
+ if (ret < 0) {
+ dev_err(ab8500->dev, "failed to read reg %#x: %d\n",
+ addr, ret);
goto out;
+ }
- ret &= ~mask;
- ret |= data;
+ data = (u8)ret;
+ data = (~bitmask & data) | (bitmask & bitvalues);
- ret = __ab8500_write(ab8500, addr, ret);
+ ret = ab8500->write(ab8500, addr, data);
+ if (ret < 0)
+ dev_err(ab8500->dev, "failed to write reg %#x: %d\n",
+ addr, ret);
+ dev_vdbg(ab8500->dev, "mask: addr %#x => data %#x\n", addr, data);
out:
mutex_unlock(&ab8500->lock);
return ret;
}
-EXPORT_SYMBOL_GPL(ab8500_set_bits);
+
+static int ab8500_mask_and_set_register(struct device *dev,
+ u8 bank, u8 reg, u8 bitmask, u8 bitvalues)
+{
+ struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
+
+ return mask_and_set_register_interruptible(ab8500, bank, reg,
+ bitmask, bitvalues);
+
+}
+
+static struct abx500_ops ab8500_ops = {
+ .get_chip_id = ab8500_get_chip_id,
+ .get_register = ab8500_get_register,
+ .set_register = ab8500_set_register,
+ .get_register_page = NULL,
+ .set_register_page = NULL,
+ .mask_and_set_register = ab8500_mask_and_set_register,
+ .event_registers_startup_state_get = NULL,
+ .startup_irq_enabled = NULL,
+};
static void ab8500_irq_lock(unsigned int irq)
{
@@ -209,12 +243,16 @@ static void ab8500_irq_sync_unlock(unsigned int irq)
if (new == old)
continue;
+ /* Interrupt register 12 doesn't exist prior to version 2.0 */
+ if (ab8500_irq_regoffset[i] == 11 &&
+ ab8500->chip_id < AB8500_CUT2P0)
+ continue;
+
ab8500->oldmask[i] = new;
reg = AB8500_IT_MASK1_REG + ab8500_irq_regoffset[i];
- ab8500_write(ab8500, reg, new);
+ set_register_interruptible(ab8500, AB8500_INTERRUPT, reg, new);
}
-
mutex_unlock(&ab8500->irq_lock);
}
@@ -243,6 +281,7 @@ static struct irq_chip ab8500_irq_chip = {
.bus_lock = ab8500_irq_lock,
.bus_sync_unlock = ab8500_irq_sync_unlock,
.mask = ab8500_irq_mask,
+ .disable = ab8500_irq_mask,
.unmask = ab8500_irq_unmask,
};
@@ -256,20 +295,25 @@ static irqreturn_t ab8500_irq(int irq, void *dev)
for (i = 0; i < AB8500_NUM_IRQ_REGS; i++) {
int regoffset = ab8500_irq_regoffset[i];
int status;
+ u8 value;
+
+ /* Interrupt register 12 doesn't exist prior to version 2.0 */
+ if (regoffset == 11 && ab8500->chip_id < AB8500_CUT2P0)
+ continue;
- status = ab8500_read(ab8500, AB8500_IT_LATCH1_REG + regoffset);
- if (status <= 0)
+ status = get_register_interruptible(ab8500, AB8500_INTERRUPT,
+ AB8500_IT_LATCH1_REG + regoffset, &value);
+ if (status < 0 || value == 0)
continue;
do {
- int bit = __ffs(status);
+ int bit = __ffs(value);
int line = i * 8 + bit;
handle_nested_irq(ab8500->irq_base + line);
- status &= ~(1 << bit);
- } while (status);
+ value &= ~(1 << bit);
+ } while (value);
}
-
return IRQ_HANDLED;
}
@@ -307,7 +351,16 @@ static void ab8500_irq_remove(struct ab8500 *ab8500)
}
}
-static struct resource ab8500_gpadc_resources[] = {
+static struct resource __devinitdata ab8500_gpio_resources[] = {
+ {
+ .name = "GPIO_INT6",
+ .start = AB8500_INT_GPIO6R,
+ .end = AB8500_INT_GPIO41F,
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+static struct resource __devinitdata ab8500_gpadc_resources[] = {
{
.name = "HW_CONV_END",
.start = AB8500_INT_GP_HW_ADC_CONV_END,
@@ -322,7 +375,7 @@ static struct resource ab8500_gpadc_resources[] = {
},
};
-static struct resource ab8500_rtc_resources[] = {
+static struct resource __devinitdata ab8500_rtc_resources[] = {
{
.name = "60S",
.start = AB8500_INT_RTC_60S,
@@ -337,7 +390,312 @@ static struct resource ab8500_rtc_resources[] = {
},
};
-static struct mfd_cell ab8500_devs[] = {
+static struct resource __devinitdata ab8500_poweronkey_db_resources[] = {
+ {
+ .name = "ONKEY_DBF",
+ .start = AB8500_INT_PON_KEY1DB_F,
+ .end = AB8500_INT_PON_KEY1DB_F,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "ONKEY_DBR",
+ .start = AB8500_INT_PON_KEY1DB_R,
+ .end = AB8500_INT_PON_KEY1DB_R,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource __devinitdata ab8500_av_acc_detect_resources[] = {
+ {
+ .name = "ACC_DETECT_1DB_F",
+ .start = AB8500_INT_ACC_DETECT_1DB_F,
+ .end = AB8500_INT_ACC_DETECT_1DB_F,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "ACC_DETECT_1DB_R",
+ .start = AB8500_INT_ACC_DETECT_1DB_R,
+ .end = AB8500_INT_ACC_DETECT_1DB_R,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "ACC_DETECT_21DB_F",
+ .start = AB8500_INT_ACC_DETECT_21DB_F,
+ .end = AB8500_INT_ACC_DETECT_21DB_F,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "ACC_DETECT_21DB_R",
+ .start = AB8500_INT_ACC_DETECT_21DB_R,
+ .end = AB8500_INT_ACC_DETECT_21DB_R,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "ACC_DETECT_22DB_F",
+ .start = AB8500_INT_ACC_DETECT_22DB_F,
+ .end = AB8500_INT_ACC_DETECT_22DB_F,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "ACC_DETECT_22DB_R",
+ .start = AB8500_INT_ACC_DETECT_22DB_R,
+ .end = AB8500_INT_ACC_DETECT_22DB_R,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource __devinitdata ab8500_charger_resources[] = {
+ {
+ .name = "MAIN_CH_UNPLUG_DET",
+ .start = AB8500_INT_MAIN_CH_UNPLUG_DET,
+ .end = AB8500_INT_MAIN_CH_UNPLUG_DET,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "MAIN_CHARGE_PLUG_DET",
+ .start = AB8500_INT_MAIN_CH_PLUG_DET,
+ .end = AB8500_INT_MAIN_CH_PLUG_DET,
+ .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 = "USB_LINK_STATUS",
+ .start = AB8500_INT_USB_LINK_STATUS,
+ .end = AB8500_INT_USB_LINK_STATUS,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "USB_CHARGE_DET_DONE",
+ .start = AB8500_INT_USB_CHG_DET_DONE,
+ .end = AB8500_INT_USB_CHG_DET_DONE,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "VBUS_OVV",
+ .start = AB8500_INT_VBUS_OVV,
+ .end = AB8500_INT_VBUS_OVV,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "USB_CH_TH_PROT_R",
+ .start = AB8500_INT_USB_CH_TH_PROT_R,
+ .end = AB8500_INT_USB_CH_TH_PROT_R,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "USB_CH_TH_PROT_F",
+ .start = AB8500_INT_USB_CH_TH_PROT_F,
+ .end = AB8500_INT_USB_CH_TH_PROT_F,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "MAIN_EXT_CH_NOT_OK",
+ .start = AB8500_INT_MAIN_EXT_CH_NOT_OK,
+ .end = AB8500_INT_MAIN_EXT_CH_NOT_OK,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "MAIN_CH_TH_PROT_R",
+ .start = AB8500_INT_MAIN_CH_TH_PROT_R,
+ .end = AB8500_INT_MAIN_CH_TH_PROT_R,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "MAIN_CH_TH_PROT_F",
+ .start = AB8500_INT_MAIN_CH_TH_PROT_F,
+ .end = AB8500_INT_MAIN_CH_TH_PROT_F,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "USB_CHARGER_NOT_OKR",
+ .start = AB8500_INT_USB_CHARGER_NOT_OK,
+ .end = AB8500_INT_USB_CHARGER_NOT_OK,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "USB_CHARGER_NOT_OKF",
+ .start = AB8500_INT_USB_CHARGER_NOT_OKF,
+ .end = AB8500_INT_USB_CHARGER_NOT_OKF,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "CH_WD_EXP",
+ .start = AB8500_INT_CH_WD_EXP,
+ .end = AB8500_INT_CH_WD_EXP,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource __devinitdata ab8500_btemp_resources[] = {
+ {
+ .name = "BAT_CTRL_INDB",
+ .start = AB8500_INT_BAT_CTRL_INDB,
+ .end = AB8500_INT_BAT_CTRL_INDB,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "BTEMP_LOW",
+ .start = AB8500_INT_BTEMP_LOW,
+ .end = AB8500_INT_BTEMP_LOW,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "BTEMP_HIGH",
+ .start = AB8500_INT_BTEMP_HIGH,
+ .end = AB8500_INT_BTEMP_HIGH,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "BTEMP_LOW_MEDIUM",
+ .start = AB8500_INT_BTEMP_LOW_MEDIUM,
+ .end = AB8500_INT_BTEMP_LOW_MEDIUM,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "BTEMP_MEDIUM_HIGH",
+ .start = AB8500_INT_BTEMP_MEDIUM_HIGH,
+ .end = AB8500_INT_BTEMP_MEDIUM_HIGH,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource __devinitdata ab8500_fg_resources[] = {
+ {
+ .name = "NCONV_ACCU",
+ .start = AB8500_INT_CCN_CONV_ACC,
+ .end = AB8500_INT_CCN_CONV_ACC,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "BATT_OVV",
+ .start = AB8500_INT_BATT_OVV,
+ .end = AB8500_INT_BATT_OVV,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "LOW_BAT_F",
+ .start = AB8500_INT_LOW_BAT_F,
+ .end = AB8500_INT_LOW_BAT_F,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "LOW_BAT_R",
+ .start = AB8500_INT_LOW_BAT_R,
+ .end = AB8500_INT_LOW_BAT_R,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "CC_INT_CALIB",
+ .start = AB8500_INT_CC_INT_CALIB,
+ .end = AB8500_INT_CC_INT_CALIB,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource __devinitdata ab8500_chargalg_resources[] = {};
+
+static struct resource __devinitdata ab8500_debug_resources[] = {
+ {
+ .name = "IRQ_FIRST",
+ .start = AB8500_INT_MAIN_EXT_CH_NOT_OK,
+ .end = AB8500_INT_MAIN_EXT_CH_NOT_OK,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "IRQ_LAST",
+ .start = AB8500_INT_USB_CHARGER_NOT_OKF,
+ .end = AB8500_INT_USB_CHARGER_NOT_OKF,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource __devinitdata ab8500_usb_resources[] = {
+ {
+ .name = "ID_WAKEUP_R",
+ .start = AB8500_INT_ID_WAKEUP_R,
+ .end = AB8500_INT_ID_WAKEUP_R,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "ID_WAKEUP_F",
+ .start = AB8500_INT_ID_WAKEUP_F,
+ .end = AB8500_INT_ID_WAKEUP_F,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "VBUS_DET_F",
+ .start = AB8500_INT_VBUS_DET_F,
+ .end = AB8500_INT_VBUS_DET_F,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "VBUS_DET_R",
+ .start = AB8500_INT_VBUS_DET_R,
+ .end = AB8500_INT_VBUS_DET_R,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "USB_LINK_STATUS",
+ .start = AB8500_INT_USB_LINK_STATUS,
+ .end = AB8500_INT_USB_LINK_STATUS,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "USB_ADP_PROBE_PLUG",
+ .start = AB8500_INT_ADP_PROBE_PLUG,
+ .end = AB8500_INT_ADP_PROBE_PLUG,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "USB_ADP_PROBE_UNPLUG",
+ .start = AB8500_INT_ADP_PROBE_UNPLUG,
+ .end = AB8500_INT_ADP_PROBE_UNPLUG,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource __devinitdata ab8500_temp_resources[] = {
+ {
+ .name = "AB8500_TEMP_WARM",
+ .start = AB8500_INT_TEMP_WARM,
+ .end = AB8500_INT_TEMP_WARM,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct mfd_cell __devinitdata ab8500_devs[] = {
+#ifdef CONFIG_DEBUG_FS
+ {
+ .name = "ab8500-debug",
+ .num_resources = ARRAY_SIZE(ab8500_debug_resources),
+ .resources = ab8500_debug_resources,
+ },
+#endif
+ {
+ .name = "ab8500-sysctrl",
+ },
+ {
+ .name = "ab8500-regulator",
+ },
+ {
+ .name = "ab8500-regulator-debug",
+ },
+ {
+ .name = "ab8500-gpio",
+ .num_resources = ARRAY_SIZE(ab8500_gpio_resources),
+ .resources = ab8500_gpio_resources,
+ },
{
.name = "ab8500-gpadc",
.num_resources = ARRAY_SIZE(ab8500_gpadc_resources),
@@ -348,10 +706,113 @@ static struct mfd_cell ab8500_devs[] = {
.num_resources = ARRAY_SIZE(ab8500_rtc_resources),
.resources = ab8500_rtc_resources,
},
- { .name = "ab8500-charger", },
- { .name = "ab8500-audio", },
- { .name = "ab8500-usb", },
- { .name = "ab8500-pwm", },
+ {
+ .name = "ab8500-charger",
+ .num_resources = ARRAY_SIZE(ab8500_charger_resources),
+ .resources = ab8500_charger_resources,
+ },
+ {
+ .name = "ab8500-btemp",
+ .num_resources = ARRAY_SIZE(ab8500_btemp_resources),
+ .resources = ab8500_btemp_resources,
+ },
+ {
+ .name = "ab8500-fg",
+ .num_resources = ARRAY_SIZE(ab8500_fg_resources),
+ .resources = ab8500_fg_resources,
+ },
+ {
+ .name = "ab8500-chargalg",
+ .num_resources = ARRAY_SIZE(ab8500_chargalg_resources),
+ .resources = ab8500_chargalg_resources,
+ },
+ {
+ .name = "ab8500-acc-det",
+ .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
+ .resources = ab8500_av_acc_detect_resources,
+ },
+ {
+ .name = "ab8500-codec",
+ },
+ {
+ .name = "ab8500-usb",
+ .num_resources = ARRAY_SIZE(ab8500_usb_resources),
+ .resources = ab8500_usb_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-pwm",
+ .id = 2,
+ },
+ {
+ .name = "ab8500-pwm",
+ .id = 3,
+ },
+ { .name = "ab8500-leds", },
+ {
+ .name = "ab8500-denc",
+ },
+ {
+ .name = "ab8500-temp",
+ .num_resources = ARRAY_SIZE(ab8500_temp_resources),
+ .resources = ab8500_temp_resources,
+ },
+};
+
+static ssize_t show_chip_id(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct ab8500 *ab8500;
+
+ ab8500 = dev_get_drvdata(dev);
+ return sprintf(buf, "%#x\n", ab8500 ? ab8500->chip_id : -EINVAL);
+}
+
+/*
+ * ab8500 has switched off due to (SWITCH_OFF_STATUS):
+ * 0x01 Swoff bit programming
+ * 0x02 Thermal protection activation
+ * 0x04 Vbat lower then BattOk falling threshold
+ * 0x08 Watchdog expired
+ * 0x10 Non presence of 32kHz clock
+ * 0x20 Battery level lower than power on reset threshold
+ * 0x40 Power on key 1 pressed longer than 10 seconds
+ * 0x80 DB8500 thermal shutdown
+ */
+static ssize_t show_switch_off_status(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_RTC,
+ AB8500_SWITCH_OFF_STATUS, &value);
+ if (ret < 0)
+ return ret;
+ return sprintf(buf, "%#x\n", value);
+}
+
+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 struct attribute *ab8500_sysfs_entries[] = {
+ &dev_attr_chip_id.attr,
+ &dev_attr_switch_off_status.attr,
+ NULL,
+};
+
+static struct attribute_group ab8500_attr_group = {
+ .attrs = ab8500_sysfs_entries,
};
int __devinit ab8500_init(struct ab8500 *ab8500)
@@ -359,6 +820,7 @@ int __devinit ab8500_init(struct ab8500 *ab8500)
struct ab8500_platform_data *plat = dev_get_platdata(ab8500->dev);
int ret;
int i;
+ u8 value;
if (plat)
ab8500->irq_base = plat->irq_base;
@@ -366,37 +828,64 @@ int __devinit ab8500_init(struct ab8500 *ab8500)
mutex_init(&ab8500->lock);
mutex_init(&ab8500->irq_lock);
- ret = ab8500_read(ab8500, AB8500_REV_REG);
+ ret = get_register_interruptible(ab8500, AB8500_MISC,
+ AB8500_REV_REG, &value);
if (ret < 0)
return ret;
- /*
- * 0x0 - Early Drop
- * 0x10 - Cut 1.0
- * 0x11 - Cut 1.1
- */
- if (ret == 0x0 || ret == 0x10 || ret == 0x11) {
- ab8500->revision = ret;
- dev_info(ab8500->dev, "detected chip, revision: %#x\n", ret);
- } else {
- dev_err(ab8500->dev, "unknown chip, revision: %#x\n", ret);
+ switch (value) {
+ case AB8500_CUTEARLY:
+ case AB8500_CUT1P0:
+ case AB8500_CUT1P1:
+ case AB8500_CUT2P0:
+ case AB8500_CUT3P0:
+ dev_info(ab8500->dev, "detected chip, revision: %#x\n", value);
+ break;
+ default:
+ dev_err(ab8500->dev, "unknown chip, revision: %#x\n", value);
return -EINVAL;
}
+ ab8500->chip_id = value;
+
+ /*
+ * ab8500 has switched off due to (SWITCH_OFF_STATUS):
+ * 0x01 Swoff bit programming
+ * 0x02 Thermal protection activation
+ * 0x04 Vbat lower then BattOk falling threshold
+ * 0x08 Watchdog expired
+ * 0x10 Non presence of 32kHz clock
+ * 0x20 Battery level lower than power on reset threshold
+ * 0x40 Power on key 1 pressed longer than 10 seconds
+ * 0x80 DB8500 thermal shutdown
+ */
+
+ ret = get_register_interruptible(ab8500, AB8500_RTC,
+ AB8500_SWITCH_OFF_STATUS, &value);
+ if (ret < 0)
+ return ret;
+ dev_info(ab8500->dev, "switch off status: %#x", value);
if (plat && plat->init)
plat->init(ab8500);
/* Clear and mask all interrupts */
- for (i = 0; i < 10; i++) {
- ab8500_read(ab8500, AB8500_IT_LATCH1_REG + i);
- ab8500_write(ab8500, AB8500_IT_MASK1_REG + i, 0xff);
- }
+ for (i = 0; i < AB8500_NUM_IRQ_REGS; i++) {
+ /* Interrupt register 12 doesn't exist prior to version 2.0 */
+ if (ab8500_irq_regoffset[i] == 11 &&
+ ab8500->chip_id < AB8500_CUT2P0)
+ continue;
- for (i = 18; i < 24; i++) {
- ab8500_read(ab8500, AB8500_IT_LATCH1_REG + i);
- ab8500_write(ab8500, AB8500_IT_MASK1_REG + i, 0xff);
+ get_register_interruptible(ab8500, AB8500_INTERRUPT,
+ AB8500_IT_LATCH1_REG + ab8500_irq_regoffset[i],
+ &value);
+ set_register_interruptible(ab8500, AB8500_INTERRUPT,
+ AB8500_IT_MASK1_REG + ab8500_irq_regoffset[i], 0xff);
}
+ ret = abx500_register_ops(ab8500->dev, &ab8500_ops);
+ if (ret)
+ return ret;
+
for (i = 0; i < AB8500_NUM_IRQ_REGS; i++)
ab8500->mask[i] = ab8500->oldmask[i] = 0xff;
@@ -406,17 +895,22 @@ int __devinit ab8500_init(struct ab8500 *ab8500)
return ret;
ret = request_threaded_irq(ab8500->irq, NULL, ab8500_irq,
- IRQF_ONESHOT, "ab8500", ab8500);
+ IRQF_ONESHOT | IRQF_NO_SUSPEND,
+ "ab8500", ab8500);
if (ret)
goto out_removeirq;
}
- ret = mfd_add_devices(ab8500->dev, -1, ab8500_devs,
+ ret = mfd_add_devices(ab8500->dev, 0, ab8500_devs,
ARRAY_SIZE(ab8500_devs), NULL,
ab8500->irq_base);
if (ret)
goto out_freeirq;
+ ret = sysfs_create_group(&ab8500->dev->kobj, &ab8500_attr_group);
+ if (ret)
+ dev_err(ab8500->dev, "error creating sysfs entries\n");
+
return ret;
out_freeirq:
@@ -430,6 +924,7 @@ out_removeirq:
int __devexit ab8500_exit(struct ab8500 *ab8500)
{
+ sysfs_remove_group(&ab8500->dev->kobj, &ab8500_attr_group);
mfd_remove_devices(ab8500->dev);
if (ab8500->irq_base) {
free_irq(ab8500->irq, ab8500);
@@ -439,6 +934,6 @@ int __devexit ab8500_exit(struct ab8500 *ab8500)
return 0;
}
-MODULE_AUTHOR("Srinidhi Kasagar, Rabin Vincent");
+MODULE_AUTHOR("Mattias Wallin, Srinidhi Kasagar, Rabin Vincent");
MODULE_DESCRIPTION("AB8500 MFD core");
MODULE_LICENSE("GPL v2");
generated by cgit v1.2.3 (git 2.39.1) at 2025-07-05 01:33:16 +0000