diff options
| author | Laxman Dewangan <ldewangan@nvidia.com> | 2013-01-28 17:57:41 +0530 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2013-09-14 12:51:52 -0700 |
| commit | 36ed5d838510ccaf67a5b1f9b119a156ec2bf086 (patch) | |
| tree | be7dc1790b43abd340926817b81bf5310631ed4d /drivers/base | |
| parent | 64cc92b3650cb5fcafbb868d45cf707f903ef4d6 (diff) | |
regmap-irq: do not write mask register if mask_base is zero
If client have not provided the mask base register then do not
write into the mask register.
(Cherrypicked commit 0705142a8736f2e2eae3af0e912feff4685a08e4)
Reviewed-on: http://git-master/r/194662
Change-Id: Ic581de65277b2301d9105a235a3b65a935ba82dd
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: http://git-master/r/196741
GVS: Gerrit_Virtual_Submit
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/regmap/regmap-irq.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c index 3f5b8915ff19..69454e37f966 100644 --- a/drivers/base/regmap/regmap-irq.c +++ b/drivers/base/regmap/regmap-irq.c @@ -80,6 +80,9 @@ static void regmap_irq_sync_unlock(struct irq_data *data) * suppress pointless writes. */ for (i = 0; i < d->chip->num_regs; i++) { + if (!d->chip->mask_base) + continue; + reg = d->chip->mask_base + (i * map->reg_stride * d->irq_reg_stride); if (d->chip->mask_invert) @@ -471,6 +474,9 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags, /* Mask all the interrupts by default */ for (i = 0; i < chip->num_regs; i++) { d->mask_buf[i] = d->mask_buf_def[i]; + if (!chip->mask_base) + continue; + reg = chip->mask_base + (i * map->reg_stride * d->irq_reg_stride); if (chip->mask_invert) |