diff options
Diffstat (limited to 'drivers/i2c/busses/i2c-pxa.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-pxa.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c index ab59b7e492ed..fa8dd2c634d9 100644 --- a/drivers/i2c/busses/i2c-pxa.c +++ b/drivers/i2c/busses/i2c-pxa.c @@ -956,11 +956,17 @@ static void i2c_pxa_irq_rxfull(struct pxa_i2c *i2c, u32 isr) writel(icr, _ICR(i2c)); } +#define VALID_INT_SOURCE (ISR_SSD | ISR_ALD | ISR_ITE | ISR_IRF | \ + ISR_SAD | ISR_BED) 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) + return IRQ_NONE; + if (i2c_debug > 2 && 0) { dev_dbg(&i2c->adap.dev, "%s: ISR=%08x, ICR=%08x, IBMR=%02x\n", __func__, isr, readl(_ICR(i2c)), readl(_IBMR(i2c))); @@ -975,7 +981,7 @@ static irqreturn_t i2c_pxa_handler(int this_irq, void *dev_id) /* * Always clear all pending IRQs. */ - writel(isr & (ISR_SSD|ISR_ALD|ISR_ITE|ISR_IRF|ISR_SAD|ISR_BED), _ISR(i2c)); + writel(isr, _ISR(i2c)); if (isr & ISR_SAD) i2c_pxa_slave_start(i2c, isr); @@ -1120,7 +1126,7 @@ static int i2c_pxa_probe(struct platform_device *dev) i2c->adap.algo = &i2c_pxa_pio_algorithm; } else { i2c->adap.algo = &i2c_pxa_algorithm; - ret = request_irq(irq, i2c_pxa_handler, IRQF_DISABLED, + ret = request_irq(irq, i2c_pxa_handler, IRQF_SHARED, i2c->adap.name, i2c); if (ret) goto ereqirq; |