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OpenCloudOS-Kernel
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Merge remote-tracking branch 'regmap/topic/irq' into regmap-next

This commit is contained in:
Mark Brown 2013-08-31 19:25:12 +01:00
parent 4ff4eb9e8c 68622bdfef
commit 1801ceaf07
2 changed files with 32 additions and 3 deletions
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25
drivers/base/regmap/regmap-irq.c
View File

@ -418,6 +418,31 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
reg, ret);
goto err_alloc;
}
if (!chip->init_ack_masked)
continue;
/* Ack masked but set interrupts */
reg = chip->status_base +
(i * map->reg_stride * d->irq_reg_stride);
ret = regmap_read(map, reg, &d->status_buf[i]);
if (ret != 0) {
dev_err(map->dev, "Failed to read IRQ status: %d\n",
ret);
goto err_alloc;
}
if (d->status_buf[i] && chip->ack_base) {
reg = chip->ack_base +
(i * map->reg_stride * d->irq_reg_stride);
ret = regmap_write(map, reg,
d->status_buf[i] & d->mask_buf[i]);
if (ret != 0) {
dev_err(map->dev, "Failed to ack 0x%x: %d\n",
reg, ret);
goto err_alloc;
}
}
}
/* Wake is disabled by default */

10
include/linux/regmap.h
View File

@ -471,6 +471,9 @@ struct regmap_irq {
* @ack_base: Base ack address. If zero then the chip is clear on read.
* @wake_base: Base address for wake enables. If zero unsupported.
* @irq_reg_stride: Stride to use for chips where registers are not contiguous.
* @init_ack_masked: Ack all masked interrupts once during initalization.
* @mask_invert: Inverted mask register: cleared bits are masked out.
* @wake_invert: Inverted wake register: cleared bits are wake enabled.
* @runtime_pm: Hold a runtime PM lock on the device when accessing it.
*
* @num_regs: Number of registers in each control bank.
@ -486,9 +489,10 @@ struct regmap_irq_chip {
unsigned int ack_base;
unsigned int wake_base;
unsigned int irq_reg_stride;
unsigned int mask_invert;
unsigned int wake_invert;
bool runtime_pm;
bool init_ack_masked:1;
bool mask_invert:1;
bool wake_invert:1;
bool runtime_pm:1;
int num_regs;