diff options
| author | Laxman Dewangan <ldewangan@nvidia.com> | 2011-11-14 19:50:13 +0530 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:50:13 -0800 |
| commit | 0c5329891706a0860a7c597b0bb06f28797eb37a (patch) | |
| tree | 56b6275aadb6138495359e47d9493aeb86f01679 /drivers/mfd | |
| parent | d45ab1ba44d57ca3c08217c5dd1cf3db604301d9 (diff) | |
mfd: tps6591x: Acks the enabled interrupts only
Acknowledge the tps6591x interrupt by processor only
when it is enabled by client. The acknowledge is done
by writing 1 to INT_STS register.
bug 896151
Reviewed-on: http://git-master/r/64824
(cherry picked from commit 31fbb94516e5b600ad536e35c95e64b525b21f61)
Change-Id: I7f4328f6084f6e94884ac4a87c5c3a247f7fa99d
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: http://git-master/r/65453
Rebase-Id: R4803a1635b5404226679de09dc15260ff60d44e6
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/tps6591x.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/mfd/tps6591x.c b/drivers/mfd/tps6591x.c index 0831a034bed3..cc3ff239e24b 100644 --- a/drivers/mfd/tps6591x.c +++ b/drivers/mfd/tps6591x.c @@ -519,6 +519,7 @@ static irqreturn_t tps6591x_irq(int irq, void *data) struct tps6591x *tps6591x = data; int ret = 0; u8 tmp[3]; + u8 int_ack; u32 acks, mask = 0; int i; @@ -531,8 +532,10 @@ static irqreturn_t tps6591x_irq(int irq, void *data) return IRQ_NONE; } if (tmp[i]) { + /* Ack only those interrupts which are enabled */ + int_ack = tmp[i] & (~(tps6591x->mask_cache[i])); ret = tps6591x_write(tps6591x->dev, - TPS6591X_INT_STS + 2*i, tmp[i]); + TPS6591X_INT_STS + 2*i, int_ack); if (ret < 0) { dev_err(tps6591x->dev, "failed to write interrupt status\n"); |