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regmap-irq: Add handle_mask_sync() callback

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Provide a public callback handle_mask_sync() that drivers can use when
they have more complex IRQ masking logic. The default implementation is
regmap_irq_handle_mask_sync(), used if the chip doesn't provide its own
callback.

Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Link: https://lore.kernel.org/r/e083474b3d467a86e6cb53da8072de4515bd6276.1669100542.git.william.gray@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
William Breathitt Gray 2022-11-22 02:10:59 -05:00 committed by Mark Brown
parent acdce7aa7a
commit 69af4bcaa0
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 36 additions and 13 deletions
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44
drivers/base/regmap/regmap-irq.c
View File

@ -115,12 +115,20 @@ static void regmap_irq_sync_unlock(struct irq_data *data)
*/
for (i = 0; i < d->chip->num_regs; i++) {
if (d->mask_base) {
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(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->unmask_base) {
@ -917,13 +925,23 @@ int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
d->mask_buf[i] = d->mask_buf_def[i];
if (d->mask_base) {
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(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;
}
}
}

5
include/linux/regmap.h
View File

@ -1580,6 +1580,8 @@ struct regmap_irq_chip_data;
* before regmap_irq_handler process the interrupts.
* @handle_post_irq: Driver specific callback to handle interrupt from device
* 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.
@ -1641,6 +1643,9 @@ struct regmap_irq_chip {
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,
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,