#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
#define AB8500_TURN_ON_STATUS 0x00
+#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);
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
};
static const char ab8500_version_str[][7] = {
.mask_and_set_register = ab8500_mask_and_set_register,
.event_registers_startup_state_get = NULL,
.startup_irq_enabled = NULL,
+ .dump_all_banks = ab8500_dump_all_banks,
};
static void ab8500_irq_lock(struct irq_data *data)
int mask = 1 << (offset % 8);
ab8500->mask[index] |= mask;
+
+ /* The AB8500 GPIOs have two interrupts each (rising & falling). */
+ if (offset >= AB8500_INT_GPIO6R && offset <= AB8500_INT_GPIO41R)
+ ab8500->mask[index + 2] |= mask;
+ if (offset >= AB9540_INT_GPIO50R && offset <= AB9540_INT_GPIO54R)
+ ab8500->mask[index + 1] |= mask;
+ if (offset == AB8540_INT_GPIO43R || offset == AB8540_INT_GPIO44R)
+ /* Here the falling IRQ is one bit lower */
+ ab8500->mask[index] |= (mask << 1);
}
static void ab8500_irq_unmask(struct irq_data *data)
{
struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
+ unsigned int type = irqd_get_trigger_type(data);
int offset = data->hwirq;
int index = offset / 8;
int mask = 1 << (offset % 8);
- ab8500->mask[index] &= ~mask;
+ if (type & IRQ_TYPE_EDGE_RISING)
+ ab8500->mask[index] &= ~mask;
+
+ /* The AB8500 GPIOs have two interrupts each (rising & falling). */
+ if (type & IRQ_TYPE_EDGE_FALLING) {
+ if (offset >= AB8500_INT_GPIO6R && offset <= AB8500_INT_GPIO41R)
+ ab8500->mask[index + 2] &= ~mask;
+ else if (offset >= AB9540_INT_GPIO50R && offset <= AB9540_INT_GPIO54R)
+ ab8500->mask[index + 1] &= ~mask;
+ else if (offset == AB8540_INT_GPIO43R || offset == AB8540_INT_GPIO44R)
+ /* Here the falling IRQ is one bit lower */
+ ab8500->mask[index] &= ~(mask << 1);
+ else
+ ab8500->mask[index] &= ~mask;
+ } else {
+ /* Satisfies the case where type is not set. */
+ ab8500->mask[index] &= ~mask;
+ }
+}
+
+static int ab8500_irq_set_type(struct irq_data *data, unsigned int type)
+{
+ return 0;
}
static struct irq_chip ab8500_irq_chip = {
.irq_mask = ab8500_irq_mask,
.irq_disable = ab8500_irq_mask,
.irq_unmask = ab8500_irq_unmask,
+ .irq_set_type = ab8500_irq_set_type,
};
static int ab8500_handle_hierarchical_line(struct ab8500 *ab8500,
line = (i << 3) + int_bit;
latch_val &= ~(1 << int_bit);
+ /*
+ * This handles the falling edge hwirqs from the GPIO
+ * lines. Route them back to the line registered for the
+ * rising IRQ, as this is merely a flag for the same IRQ
+ * in linux terms.
+ */
+ if (line >= AB8500_INT_GPIO6F && line <= AB8500_INT_GPIO41F)
+ line -= 16;
+ if (line >= AB9540_INT_GPIO50F && line <= AB9540_INT_GPIO54F)
+ line -= 8;
+ if (line == AB8540_INT_GPIO43F || line == AB8540_INT_GPIO44F)
+ line += 1;
+
handle_nested_irq(ab8500->irq_base + line);
} while (latch_val);
int virq = ab8500_irq_get_virq(ab8500, line);
handle_nested_irq(virq);
+ ab8500_debug_register_interrupt(line);
value &= ~(1 << bit);
} while (value);
static struct resource ab8500_temp_resources[] = {
{
- .name = "AB8500_TEMP_WARM",
+ .name = "ABX500_TEMP_WARM",
.start = AB8500_INT_TEMP_WARM,
.end = AB8500_INT_TEMP_WARM,
.flags = IORESOURCE_IRQ,
.of_compatible = "stericsson,ab8500-denc",
},
{
- .name = "ab8500-temp",
- .of_compatible = "stericsson,ab8500-temp",
+ .name = "abx500-temp",
+ .of_compatible = "stericsson,abx500-temp",
.num_resources = ARRAY_SIZE(ab8500_temp_resources),
.resources = ab8500_temp_resources,
},
static struct mfd_cell ab8500_devs[] = {
{
- .name = "ab8500-gpio",
+ .name = "pinctrl-ab8500",
.of_compatible = "stericsson,ab8500-gpio",
},
{
static struct mfd_cell ab9540_devs[] = {
{
- .name = "ab8500-gpio",
+ .name = "pinctrl-ab9540",
+ .of_compatible = "stericsson,ab9540-gpio",
},
{
.name = "ab9540-usb",
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
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);
}
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++) {
projects / mirror_ubuntu-bionic-kernel.git / blobdiff