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-rw-r--r--drivers/base/regmap/regmap-irq.c267
-rw-r--r--drivers/base/regmap/regmap-mmio.c2
-rw-r--r--drivers/gpio/gpio-104-dio-48e.c37
-rw-r--r--include/linux/regmap.h33
4 files changed, 73 insertions, 266 deletions
diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c
index b99bb2369fff..330da5d6c8c3 100644
--- a/drivers/base/regmap/regmap-irq.c
+++ b/drivers/base/regmap/regmap-irq.c
@@ -30,9 +30,6 @@ struct regmap_irq_chip_data {
int irq;
int wake_count;
- unsigned int mask_base;
- unsigned int unmask_base;
-
void *status_reg_buf;
unsigned int *main_status_buf;
unsigned int *status_buf;
@@ -41,7 +38,6 @@ struct regmap_irq_chip_data {
unsigned int *wake_buf;
unsigned int *type_buf;
unsigned int *type_buf_def;
- unsigned int **virt_buf;
unsigned int **config_buf;
unsigned int irq_reg_stride;
@@ -114,25 +110,22 @@ static void regmap_irq_sync_unlock(struct irq_data *data)
* suppress pointless writes.
*/
for (i = 0; i < d->chip->num_regs; i++) {
- if (d->mask_base) {
- if (d->chip->handle_mask_sync)
- d->chip->handle_mask_sync(d->map, i,
- d->mask_buf_def[i],
- d->mask_buf[i],
- d->chip->irq_drv_data);
- else {
- reg = d->get_irq_reg(d, d->mask_base, i);
- ret = regmap_update_bits(d->map, reg,
- d->mask_buf_def[i],
- d->mask_buf[i]);
- if (ret)
- dev_err(d->map->dev, "Failed to sync masks in %x\n",
- reg);
- }
+ if (d->chip->handle_mask_sync)
+ d->chip->handle_mask_sync(i, d->mask_buf_def[i],
+ d->mask_buf[i],
+ d->chip->irq_drv_data);
+
+ if (d->chip->mask_base && !d->chip->handle_mask_sync) {
+ reg = d->get_irq_reg(d, d->chip->mask_base, i);
+ ret = regmap_update_bits(d->map, reg,
+ d->mask_buf_def[i],
+ d->mask_buf[i]);
+ if (ret)
+ dev_err(d->map->dev, "Failed to sync masks in %x\n", reg);
}
- if (d->unmask_base) {
- reg = d->get_irq_reg(d, d->unmask_base, i);
+ if (d->chip->unmask_base && !d->chip->handle_mask_sync) {
+ reg = d->get_irq_reg(d, d->chip->unmask_base, i);
ret = regmap_update_bits(d->map, reg,
d->mask_buf_def[i], ~d->mask_buf[i]);
if (ret)
@@ -183,34 +176,6 @@ static void regmap_irq_sync_unlock(struct irq_data *data)
}
}
- /* Don't update the type bits if we're using mask bits for irq type. */
- if (!d->chip->type_in_mask) {
- for (i = 0; i < d->chip->num_type_reg; i++) {
- if (!d->type_buf_def[i])
- continue;
- reg = d->get_irq_reg(d, d->chip->type_base, i);
- ret = regmap_update_bits(d->map, reg,
- d->type_buf_def[i], d->type_buf[i]);
- if (ret != 0)
- dev_err(d->map->dev, "Failed to sync type in %x\n",
- reg);
- }
- }
-
- if (d->chip->num_virt_regs) {
- for (i = 0; i < d->chip->num_virt_regs; i++) {
- for (j = 0; j < d->chip->num_regs; j++) {
- reg = d->get_irq_reg(d, d->chip->virt_reg_base[i],
- j);
- ret = regmap_write(map, reg, d->virt_buf[i][j]);
- if (ret != 0)
- dev_err(d->map->dev,
- "Failed to write virt 0x%x: %d\n",
- reg, ret);
- }
- }
- }
-
for (i = 0; i < d->chip->num_config_bases; i++) {
for (j = 0; j < d->chip->num_config_regs; j++) {
reg = d->get_irq_reg(d, d->chip->config_base[i], j);
@@ -289,41 +254,9 @@ static int regmap_irq_set_type(struct irq_data *data, unsigned int type)
reg = t->type_reg_offset / map->reg_stride;
- if (t->type_reg_mask)
- d->type_buf[reg] &= ~t->type_reg_mask;
- else
- d->type_buf[reg] &= ~(t->type_falling_val |
- t->type_rising_val |
- t->type_level_low_val |
- t->type_level_high_val);
- switch (type) {
- case IRQ_TYPE_EDGE_FALLING:
- d->type_buf[reg] |= t->type_falling_val;
- break;
-
- case IRQ_TYPE_EDGE_RISING:
- d->type_buf[reg] |= t->type_rising_val;
- break;
-
- case IRQ_TYPE_EDGE_BOTH:
- d->type_buf[reg] |= (t->type_falling_val |
- t->type_rising_val);
- break;
-
- case IRQ_TYPE_LEVEL_HIGH:
- d->type_buf[reg] |= t->type_level_high_val;
- break;
-
- case IRQ_TYPE_LEVEL_LOW:
- d->type_buf[reg] |= t->type_level_low_val;
- break;
- default:
- return -EINVAL;
- }
-
- if (d->chip->set_type_virt) {
- ret = d->chip->set_type_virt(d->virt_buf, type, data->hwirq,
- reg);
+ if (d->chip->type_in_mask) {
+ ret = regmap_irq_set_type_config_simple(&d->type_buf, type,
+ irq_data, reg, d->chip->irq_drv_data);
if (ret)
return ret;
}
@@ -390,15 +323,8 @@ static inline int read_sub_irq_data(struct regmap_irq_chip_data *data,
unsigned int offset = subreg->offset[i];
unsigned int index = offset / map->reg_stride;
- if (chip->not_fixed_stride)
- ret = regmap_read(map,
- chip->status_base + offset,
- &data->status_buf[b]);
- else
- ret = regmap_read(map,
- chip->status_base + offset,
- &data->status_buf[index]);
-
+ ret = regmap_read(map, chip->status_base + offset,
+ &data->status_buf[index]);
if (ret)
break;
}
@@ -453,17 +379,7 @@ static irqreturn_t regmap_irq_thread(int irq, void *d)
* sake of simplicity. and add bulk reads only if needed
*/
for (i = 0; i < chip->num_main_regs; i++) {
- /*
- * For not_fixed_stride, don't use ->get_irq_reg().
- * It would produce an incorrect result.
- */
- if (data->chip->not_fixed_stride)
- reg = chip->main_status +
- i * map->reg_stride * data->irq_reg_stride;
- else
- reg = data->get_irq_reg(data,
- chip->main_status, i);
-
+ reg = data->get_irq_reg(data, chip->main_status, i);
ret = regmap_read(map, reg, &data->main_status_buf[i]);
if (ret) {
dev_err(map->dev,
@@ -629,20 +545,8 @@ static const struct irq_domain_ops regmap_domain_ops = {
unsigned int regmap_irq_get_irq_reg_linear(struct regmap_irq_chip_data *data,
unsigned int base, int index)
{
- const struct regmap_irq_chip *chip = data->chip;
struct regmap *map = data->map;
- /*
- * FIXME: This is for backward compatibility and should be removed
- * when not_fixed_stride is dropped (it's only used by qcom-pm8008).
- */
- if (chip->not_fixed_stride && chip->sub_reg_offsets) {
- struct regmap_irq_sub_irq_map *subreg;
-
- subreg = &chip->sub_reg_offsets[0];
- return base + subreg->offset[0];
- }
-
return base + index * map->reg_stride * data->irq_reg_stride;
}
EXPORT_SYMBOL_GPL(regmap_irq_get_irq_reg_linear);
@@ -730,8 +634,6 @@ int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
struct regmap_irq_chip_data *d;
int i;
int ret = -ENOMEM;
- int num_type_reg;
- int num_regs;
u32 reg;
if (chip->num_regs <= 0)
@@ -740,6 +642,9 @@ int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
if (chip->clear_on_unmask && (chip->ack_base || chip->use_ack))
return -EINVAL;
+ if (chip->mask_base && chip->unmask_base && !chip->mask_unmask_non_inverted)
+ return -EINVAL;
+
for (i = 0; i < chip->num_irqs; i++) {
if (chip->irqs[i].reg_offset % map->reg_stride)
return -EINVAL;
@@ -748,20 +653,6 @@ int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
return -EINVAL;
}
- if (chip->not_fixed_stride) {
- dev_warn(map->dev, "not_fixed_stride is deprecated; use ->get_irq_reg() instead");
-
- for (i = 0; i < chip->num_regs; i++)
- if (chip->sub_reg_offsets[i].num_regs != 1)
- return -EINVAL;
- }
-
- if (chip->num_type_reg)
- dev_warn(map->dev, "type registers are deprecated; use config registers instead");
-
- if (chip->num_virt_regs || chip->virt_reg_base || chip->set_type_virt)
- dev_warn(map->dev, "virtual registers are deprecated; use config registers instead");
-
if (irq_base) {
irq_base = irq_alloc_descs(irq_base, 0, chip->num_irqs, 0);
if (irq_base < 0) {
@@ -806,43 +697,17 @@ int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
goto err_alloc;
}
- /*
- * Use num_config_regs if defined, otherwise fall back to num_type_reg
- * to maintain backward compatibility.
- */
- num_type_reg = chip->num_config_regs ? chip->num_config_regs
- : chip->num_type_reg;
- num_regs = chip->type_in_mask ? chip->num_regs : num_type_reg;
- if (num_regs) {
- d->type_buf_def = kcalloc(num_regs,
+ if (chip->type_in_mask) {
+ d->type_buf_def = kcalloc(chip->num_regs,
sizeof(*d->type_buf_def), GFP_KERNEL);
if (!d->type_buf_def)
goto err_alloc;
- d->type_buf = kcalloc(num_regs, sizeof(*d->type_buf),
- GFP_KERNEL);
+ d->type_buf = kcalloc(chip->num_regs, sizeof(*d->type_buf), GFP_KERNEL);
if (!d->type_buf)
goto err_alloc;
}
- if (chip->num_virt_regs) {
- /*
- * Create virt_buf[chip->num_extra_config_regs][chip->num_regs]
- */
- d->virt_buf = kcalloc(chip->num_virt_regs, sizeof(*d->virt_buf),
- GFP_KERNEL);
- if (!d->virt_buf)
- goto err_alloc;
-
- for (i = 0; i < chip->num_virt_regs; i++) {
- d->virt_buf[i] = kcalloc(chip->num_regs,
- sizeof(**d->virt_buf),
- GFP_KERNEL);
- if (!d->virt_buf[i])
- goto err_alloc;
- }
- }
-
if (chip->num_config_bases && chip->num_config_regs) {
/*
* Create config_buf[num_config_bases][num_config_regs]
@@ -868,28 +733,6 @@ int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
d->chip = chip;
d->irq_base = irq_base;
- if (chip->mask_base && chip->unmask_base &&
- !chip->mask_unmask_non_inverted) {
- /*
- * Chips that specify both mask_base and unmask_base used to
- * get inverted mask behavior by default, with no way to ask
- * for the normal, non-inverted behavior. This "inverted by
- * default" behavior is deprecated, but we have to support it
- * until existing drivers have been fixed.
- *
- * Existing drivers should be updated by swapping mask_base
- * and unmask_base and setting mask_unmask_non_inverted=true.
- * New drivers should always set the flag.
- */
- dev_warn(map->dev, "mask_base and unmask_base are inverted, please fix it");
-
- d->mask_base = chip->unmask_base;
- d->unmask_base = chip->mask_base;
- } else {
- d->mask_base = chip->mask_base;
- d->unmask_base = chip->unmask_base;
- }
-
if (chip->irq_reg_stride)
d->irq_reg_stride = chip->irq_reg_stride;
else
@@ -918,29 +761,28 @@ int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
for (i = 0; i < chip->num_regs; i++) {
d->mask_buf[i] = d->mask_buf_def[i];
- if (d->mask_base) {
- if (chip->handle_mask_sync) {
- ret = chip->handle_mask_sync(d->map, i,
- d->mask_buf_def[i],
- d->mask_buf[i],
- chip->irq_drv_data);
- if (ret)
- goto err_alloc;
- } else {
- reg = d->get_irq_reg(d, d->mask_base, i);
- ret = regmap_update_bits(d->map, reg,
- d->mask_buf_def[i],
- d->mask_buf[i]);
- if (ret) {
- dev_err(map->dev, "Failed to set masks in 0x%x: %d\n",
- reg, ret);
- goto err_alloc;
- }
+ if (chip->handle_mask_sync) {
+ ret = chip->handle_mask_sync(i, d->mask_buf_def[i],
+ d->mask_buf[i],
+ chip->irq_drv_data);
+ if (ret)
+ goto err_alloc;
+ }
+
+ if (chip->mask_base && !chip->handle_mask_sync) {
+ reg = d->get_irq_reg(d, chip->mask_base, i);
+ ret = regmap_update_bits(d->map, reg,
+ d->mask_buf_def[i],
+ d->mask_buf[i]);
+ if (ret) {
+ dev_err(map->dev, "Failed to set masks in 0x%x: %d\n",
+ reg, ret);
+ goto err_alloc;
}
}
- if (d->unmask_base) {
- reg = d->get_irq_reg(d, d->unmask_base, i);
+ if (chip->unmask_base && !chip->handle_mask_sync) {
+ reg = d->get_irq_reg(d, chip->unmask_base, i);
ret = regmap_update_bits(d->map, reg,
d->mask_buf_def[i], ~d->mask_buf[i]);
if (ret) {
@@ -1014,20 +856,6 @@ int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
}
}
- if (chip->num_type_reg && !chip->type_in_mask) {
- for (i = 0; i < chip->num_type_reg; ++i) {
- reg = d->get_irq_reg(d, d->chip->type_base, i);
-
- ret = regmap_read(map, reg, &d->type_buf_def[i]);
-
- if (ret) {
- dev_err(map->dev, "Failed to get type defaults at 0x%x: %d\n",
- reg, ret);
- goto err_alloc;
- }
- }
- }
-
if (irq_base)
d->domain = irq_domain_create_legacy(fwnode, chip->num_irqs,
irq_base, 0,
@@ -1064,11 +892,6 @@ err_alloc:
kfree(d->mask_buf);
kfree(d->status_buf);
kfree(d->status_reg_buf);
- if (d->virt_buf) {
- for (i = 0; i < chip->num_virt_regs; i++)
- kfree(d->virt_buf[i]);
- kfree(d->virt_buf);
- }
if (d->config_buf) {
for (i = 0; i < chip->num_config_bases; i++)
kfree(d->config_buf[i]);
diff --git a/drivers/base/regmap/regmap-mmio.c b/drivers/base/regmap/regmap-mmio.c
index 3ccdd86a97e7..8132b5c101c4 100644
--- a/drivers/base/regmap/regmap-mmio.c
+++ b/drivers/base/regmap/regmap-mmio.c
@@ -448,7 +448,7 @@ static struct regmap_mmio_context *regmap_mmio_gen_context(struct device *dev,
if (min_stride < 0)
return ERR_PTR(min_stride);
- if (config->reg_stride < min_stride)
+ if (config->reg_stride && config->reg_stride < min_stride)
return ERR_PTR(-EINVAL);
if (config->use_relaxed_mmio && config->io_port)
diff --git a/drivers/gpio/gpio-104-dio-48e.c b/drivers/gpio/gpio-104-dio-48e.c
index f2253fd5ab4b..8ff5f4ff5958 100644
--- a/drivers/gpio/gpio-104-dio-48e.c
+++ b/drivers/gpio/gpio-104-dio-48e.c
@@ -100,13 +100,23 @@ static const struct regmap_irq dio48e_regmap_irqs[] = {
DIO48E_REGMAP_IRQ(0), DIO48E_REGMAP_IRQ(1),
};
-static int dio48e_handle_mask_sync(struct regmap *const map, const int index,
+/**
+ * struct dio48e_gpio - GPIO device private data structure
+ * @map: Regmap for the device
+ * @irq_mask: Current IRQ mask state on the device
+ */
+struct dio48e_gpio {
+ struct regmap *map;
+ unsigned int irq_mask;
+};
+
+static int dio48e_handle_mask_sync(const int index,
const unsigned int mask_buf_def,
const unsigned int mask_buf,
void *const irq_drv_data)
{
- unsigned int *const irq_mask = irq_drv_data;
- const unsigned int prev_mask = *irq_mask;
+ struct dio48e_gpio *const dio48egpio = irq_drv_data;
+ const unsigned int prev_mask = dio48egpio->irq_mask;
int err;
unsigned int val;
@@ -115,19 +125,19 @@ static int dio48e_handle_mask_sync(struct regmap *const map, const int index,
return 0;
/* remember the current mask for the next mask sync */
- *irq_mask = mask_buf;
+ dio48egpio->irq_mask = mask_buf;
/* if all previously masked, enable interrupts when unmasking */
if (prev_mask == mask_buf_def) {
- err = regmap_write(map, DIO48E_CLEAR_INTERRUPT, 0x00);
+ err = regmap_write(dio48egpio->map, DIO48E_CLEAR_INTERRUPT, 0x00);
if (err)
return err;
- return regmap_write(map, DIO48E_ENABLE_INTERRUPT, 0x00);
+ return regmap_write(dio48egpio->map, DIO48E_ENABLE_INTERRUPT, 0x00);
}
/* if all are currently masked, disable interrupts */
if (mask_buf == mask_buf_def)
- return regmap_read(map, DIO48E_DISABLE_INTERRUPT, &val);
+ return regmap_read(dio48egpio->map, DIO48E_DISABLE_INTERRUPT, &val);
return 0;
}
@@ -168,7 +178,7 @@ static int dio48e_probe(struct device *dev, unsigned int id)
struct regmap *map;
int err;
struct regmap_irq_chip *chip;
- unsigned int irq_mask;
+ struct dio48e_gpio *dio48egpio;
struct regmap_irq_chip_data *chip_data;
if (!devm_request_region(dev, base[id], DIO48E_EXTENT, name)) {
@@ -186,12 +196,14 @@ static int dio48e_probe(struct device *dev, unsigned int id)
return dev_err_probe(dev, PTR_ERR(map),
"Unable to initialize register map\n");
- chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL);
- if (!chip)
+ dio48egpio = devm_kzalloc(dev, sizeof(*dio48egpio), GFP_KERNEL);
+ if (!dio48egpio)
return -ENOMEM;
- chip->irq_drv_data = devm_kzalloc(dev, sizeof(irq_mask), GFP_KERNEL);
- if (!chip->irq_drv_data)
+ dio48egpio->map = map;
+
+ chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL);
+ if (!chip)
return -ENOMEM;
chip->name = name;
@@ -202,6 +214,7 @@ static int dio48e_probe(struct device *dev, unsigned int id)
chip->irqs = dio48e_regmap_irqs;
chip->num_irqs = ARRAY_SIZE(dio48e_regmap_irqs);
chip->handle_mask_sync = dio48e_handle_mask_sync;
+ chip->irq_drv_data = dio48egpio;
/* Initialize to prevent spurious interrupts before we're ready */
err = dio48e_irq_init_hw(map);
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index c2b9cc5db824..8fc0b3ebce44 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -1528,9 +1528,6 @@ struct regmap_irq_chip_data;
* status_base. Should contain num_regs arrays.
* Can be provided for chips with more complex mapping than
* 1.st bit to 1.st sub-reg, 2.nd bit to 2.nd sub-reg, ...
- * When used with not_fixed_stride, each one-element array
- * member contains offset calculated as address from each
- * peripheral to first peripheral.
* @num_main_regs: Number of 'main status' irq registers for chips which have
* main_status set.
*
@@ -1542,10 +1539,6 @@ struct regmap_irq_chip_data;
* @ack_base: Base ack address. If zero then the chip is clear on read.
* Using zero value is possible with @use_ack bit.
* @wake_base: Base address for wake enables. If zero unsupported.
- * @type_base: Base address for irq type. If zero unsupported. Deprecated,
- * use @config_base instead.
- * @virt_reg_base: Base addresses for extra config regs. Deprecated, use
- * @config_base instead.
* @config_base: Base address for IRQ type config regs. If null unsupported.
* @irq_reg_stride: Stride to use for chips where registers are not contiguous.
* @init_ack_masked: Ack all masked interrupts once during initalization.
@@ -1571,11 +1564,6 @@ struct regmap_irq_chip_data;
* registers before unmasking interrupts to clear any bits
* set when they were masked.
* @runtime_pm: Hold a runtime PM lock on the device when accessing it.
- * @not_fixed_stride: Used when chip peripherals are not laid out with fixed
- * stride. Must be used with sub_reg_offsets containing the
- * offsets to each peripheral. Deprecated; the same thing
- * can be accomplished with a @get_irq_reg callback, without
- * the need for a @sub_reg_offsets table.
* @no_status: No status register: all interrupts assumed generated by device.
*
* @num_regs: Number of registers in each control bank.
@@ -1583,12 +1571,6 @@ struct regmap_irq_chip_data;
* @irqs: Descriptors for individual IRQs. Interrupt numbers are
* assigned based on the index in the array of the interrupt.
* @num_irqs: Number of descriptors.
- *
- * @num_type_reg: Number of type registers. Deprecated, use config registers
- * instead.
- * @num_virt_regs: Number of non-standard irq configuration registers.
- * If zero unsupported. Deprecated, use config registers
- * instead.
* @num_config_bases: Number of config base registers.
* @num_config_regs: Number of config registers for each config base register.
*
@@ -1598,15 +1580,12 @@ struct regmap_irq_chip_data;
* after handling the interrupts in regmap_irq_handler().
* @handle_mask_sync: Callback used to handle IRQ mask syncs. The index will be
* in the range [0, num_regs)
- * @set_type_virt: Driver specific callback to extend regmap_irq_set_type()
- * and configure virt regs. Deprecated, use @set_type_config
- * callback and config registers instead.
* @set_type_config: Callback used for configuring irq types.
* @get_irq_reg: Callback for mapping (base register, index) pairs to register
* addresses. The base register will be one of @status_base,
* @mask_base, etc., @main_status, or any of @config_base.
* The index will be in the range [0, num_main_regs[ for the
- * main status base, [0, num_type_settings[ for any config
+ * main status base, [0, num_config_regs[ for any config
* register base, and [0, num_regs[ for any other base.
* If unspecified then regmap_irq_get_irq_reg_linear() is used.
* @irq_drv_data: Driver specific IRQ data which is passed as parameter when
@@ -1629,8 +1608,6 @@ struct regmap_irq_chip {
unsigned int unmask_base;
unsigned int ack_base;
unsigned int wake_base;
- unsigned int type_base;
- unsigned int *virt_reg_base;
const unsigned int *config_base;
unsigned int irq_reg_stride;
unsigned int init_ack_masked:1;
@@ -1643,7 +1620,6 @@ struct regmap_irq_chip {
unsigned int type_in_mask:1;
unsigned int clear_on_unmask:1;
unsigned int runtime_pm:1;
- unsigned int not_fixed_stride:1;
unsigned int no_status:1;
int num_regs;
@@ -1651,18 +1627,13 @@ struct regmap_irq_chip {
const struct regmap_irq *irqs;
int num_irqs;
- int num_type_reg;
- int num_virt_regs;
int num_config_bases;
int num_config_regs;
int (*handle_pre_irq)(void *irq_drv_data);
int (*handle_post_irq)(void *irq_drv_data);
- int (*handle_mask_sync)(struct regmap *map, int index,
- unsigned int mask_buf_def,
+ int (*handle_mask_sync)(int index, unsigned int mask_buf_def,
unsigned int mask_buf, void *irq_drv_data);
- int (*set_type_virt)(unsigned int **buf, unsigned int type,
- unsigned long hwirq, int reg);
int (*set_type_config)(unsigned int **buf, unsigned int type,
const struct regmap_irq *irq_data, int idx,
void *irq_drv_data);