diff options
| author | Vasily Khoruzhick <anarsoul@gmail.com> | 2011-03-13 15:53:29 +0200 |
|---|---|---|
| committer | Ben Dooks <ben-linux@fluff.org> | 2011-03-21 23:00:12 +0000 |
| commit | 97491ba3f64c2137101efdfe7593305d692d7d63 (patch) | |
| tree | d8f8a075497b63f2386f3b358d96e46a0a48799c | |
| parent | a0774f4511371319418f959ce838f81d47a3fd56 (diff) | |
i2c-pxa2xx: Don't clear isr bits too early
isr is passed later into i2c_pxa_irq_txempty and
i2c_pxa_irq_rxfull and they may use some other bits
than irq sources.
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| -rw-r--r-- | drivers/i2c/busses/i2c-pxa.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c index b914184748c..f59224a5c76 100644 --- a/drivers/i2c/busses/i2c-pxa.c +++ b/drivers/i2c/busses/i2c-pxa.c @@ -966,8 +966,7 @@ static irqreturn_t i2c_pxa_handler(int this_irq, void *dev_id) struct pxa_i2c *i2c = dev_id; u32 isr = readl(_ISR(i2c)); - isr &= VALID_INT_SOURCE; - if (!isr) + if (!(isr & VALID_INT_SOURCE)) return IRQ_NONE; if (i2c_debug > 2 && 0) { @@ -984,7 +983,7 @@ static irqreturn_t i2c_pxa_handler(int this_irq, void *dev_id) /* * Always clear all pending IRQs. */ - writel(isr, _ISR(i2c)); + writel(isr & VALID_INT_SOURCE, _ISR(i2c)); if (isr & ISR_SAD) i2c_pxa_slave_start(i2c, isr); |