1 From ed5a728f2593fbd3950c5c17ab7143bafc295e57 Mon Sep 17 00:00:00 2001
2 From: popcornmix <popcornmix@gmail.com>
3 Date: Thu, 13 Jun 2013 16:46:54 +0100
4 Subject: [PATCH 067/196] Avoid responding to unexpected I2C interrupts
7 drivers/i2c/busses/i2c-bcm2708.c | 6 ++++++
8 1 file changed, 6 insertions(+)
10 diff --git a/drivers/i2c/busses/i2c-bcm2708.c b/drivers/i2c/busses/i2c-bcm2708.c
11 index edc90c0..33f4e7d 100644
12 --- a/drivers/i2c/busses/i2c-bcm2708.c
13 +++ b/drivers/i2c/busses/i2c-bcm2708.c
14 @@ -175,6 +175,11 @@ static irqreturn_t bcm2708_i2c_interrupt(int irq, void *dev_id)
18 + /* we may see camera interrupts on the "other" I2C channel
19 + Just return if we've not sent anything */
20 + if (!bi->nmsgs || !bi->msg )
23 s = bcm2708_rd(bi, BSC_S);
25 if (s & (BSC_S_CLKT | BSC_S_ERR)) {
26 @@ -208,6 +213,7 @@ static irqreturn_t bcm2708_i2c_interrupt(int irq, void *dev_id)
31 spin_unlock(&bi->lock);
33 return handled ? IRQ_HANDLED : IRQ_NONE;