diff options
| -rw-r--r-- | drivers/base/regmap/regmap-irq.c | 12 | ||||
| -rw-r--r-- | include/linux/regmap.h | 2 |
2 files changed, 12 insertions, 2 deletions
diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c index e65eec2e7def..8d16db533527 100644 --- a/drivers/base/regmap/regmap-irq.c +++ b/drivers/base/regmap/regmap-irq.c @@ -133,7 +133,11 @@ static void regmap_irq_sync_unlock(struct irq_data *data) if (d->mask_buf[i] && (d->chip->ack_base || d->chip->use_ack)) { reg = d->chip->ack_base + (i * map->reg_stride * d->irq_reg_stride); - ret = regmap_write(map, reg, d->mask_buf[i]); + /* some chips ack by write 0 */ + if (d->chip->ack_invert) + ret = regmap_write(map, reg, ~d->mask_buf[i]); + else + ret = regmap_write(map, reg, d->mask_buf[i]); if (ret != 0) dev_err(d->map->dev, "Failed to ack 0x%x: %d\n", reg, ret); @@ -470,7 +474,11 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags, if (d->status_buf[i] && (chip->ack_base || chip->use_ack)) { reg = chip->ack_base + (i * map->reg_stride * d->irq_reg_stride); - ret = regmap_write(map, reg, + if (chip->ack_invert) + ret = regmap_write(map, reg, + ~(d->status_buf[i] & d->mask_buf[i])); + else + 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", diff --git a/include/linux/regmap.h b/include/linux/regmap.h index f98fe9f5faa2..f36c9f96d32d 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -809,6 +809,7 @@ struct regmap_irq { * @init_ack_masked: Ack all masked interrupts once during initalization. * @mask_invert: Inverted mask register: cleared bits are masked out. * @use_ack: Use @ack register even if it is zero. + * @ack_invert: Inverted ack register: cleared bits for ack. * @wake_invert: Inverted wake register: cleared bits are wake enabled. * @runtime_pm: Hold a runtime PM lock on the device when accessing it. * @@ -829,6 +830,7 @@ struct regmap_irq_chip { bool init_ack_masked:1; bool mask_invert:1; bool use_ack:1; + bool ack_invert:1; bool wake_invert:1; bool runtime_pm:1; |