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regmap: irq: Add support to clear ack registers

Browse source 
WCD937x codec requires clear registers to be written '1' and
'0' for clearing interrupts. Add this support in regmap irq
inorder to clear ack registers.

Change-Id: I399592fc0ee7f3a01a32267684a9be340076ffb1
Signed-off-by: Laxminath Kasam <lkasam@codeaurora.org>
This commit is contained in:
Laxminath Kasam 2020-07-27 12:35:12 +05:30
commit 94f60f500c
2 changed files with 18 additions and 0 deletions
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15
drivers/base/regmap/regmap-irq.c
View file

@ -168,6 +168,11 @@ static void regmap_irq_sync_unlock(struct irq_data *data)
ret = regmap_write(map, reg, ~d->mask_buf[i]);
else
ret = regmap_write(map, reg, d->mask_buf[i]);
#ifdef CONFIG_AUDIO_QGKI
/* some chips needs to clear ack reg after ack */
if (d->chip->clear_ack)
ret = regmap_write(map, reg, 0x0);
#endif
if (ret != 0)
dev_err(d->map->dev, "Failed to ack 0x%x: %d\n",
reg, ret);
@ -494,6 +499,11 @@ static irqreturn_t regmap_irq_thread(int irq, void *d)
reg = chip->ack_base +
(i * map->reg_stride * data->irq_reg_stride);
ret = regmap_write(map, reg, data->status_buf[i]);
#ifdef CONFIG_AUDIO_QGKI
/* some chips needs to clear ack reg after ack */
if (chip->clear_ack)
ret = regmap_write(map, reg, 0x0);
#endif
if (ret != 0)
dev_err(map->dev, "Failed to ack 0x%x: %d\n",
reg, ret);
@ -719,6 +729,11 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
else
ret = regmap_write(map, reg,
d->status_buf[i] & d->mask_buf[i]);
#ifdef CONFIG_AUDIO_QGKI
/* some chips needs to clear ack reg after ack */
if (chip->clear_ack)
ret = regmap_write(map, reg, 0x0);
#endif
if (ret != 0) {
dev_err(map->dev, "Failed to ack 0x%x: %d\n",
reg, ret);

3
include/linux/regmap.h
View file

@ -1241,6 +1241,9 @@ struct regmap_irq_chip {
bool mask_invert:1;
bool use_ack:1;
bool ack_invert:1;
#ifdef CONFIG_AUDIO_QGKI
bool clear_ack:1;
#endif
bool wake_invert:1;
bool runtime_pm:1;
bool type_invert:1;