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regmap: irq: Support wake IRQ mask inversion

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Support devices which have an enable rather than mask register for wake
sources.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown 2013-01-04 16:35:07 +00:00
parent 33be49324f
commit 9442490a02
2 changed files with 18 additions and 4 deletions
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21
drivers/base/regmap/regmap-irq.c
View File

@ -92,8 +92,14 @@ static void regmap_irq_sync_unlock(struct irq_data *data)
reg = d->chip->wake_base +
(i * map->reg_stride * d->irq_reg_stride);
if (d->wake_buf) {
ret = regmap_update_bits(d->map, reg,
d->mask_buf_def[i], d->wake_buf[i]);
if (d->chip->wake_invert)
ret = regmap_update_bits(d->map, reg,
d->mask_buf_def[i],
~d->wake_buf[i]);
else
ret = regmap_update_bits(d->map, reg,
d->mask_buf_def[i],
d->wake_buf[i]);
if (ret != 0)
dev_err(d->map->dev,
"Failed to sync wakes in %x: %d\n",
@ -419,8 +425,15 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
d->wake_buf[i] = d->mask_buf_def[i];
reg = chip->wake_base +
(i * map->reg_stride * d->irq_reg_stride);
ret = regmap_update_bits(map, reg, d->wake_buf[i],
d->wake_buf[i]);
if (chip->wake_invert)
ret = regmap_update_bits(map, reg,
d->mask_buf_def[i],
0);
else
ret = regmap_update_bits(map, reg,
d->mask_buf_def[i],
d->wake_buf[i]);
if (ret != 0) {
dev_err(map->dev, "Failed to set masks in 0x%x: %d\n",
reg, ret);

1
include/linux/regmap.h
View File

@ -381,6 +381,7 @@ struct regmap_irq_chip {
unsigned int wake_base;
unsigned int irq_reg_stride;
unsigned int mask_invert;
unsigned int wake_invert;
bool runtime_pm;
int num_regs;