diff options
Diffstat (limited to '0001-i2c-bcm2835-Debug-test-for-curr_msg.patch')
| -rw-r--r-- | 0001-i2c-bcm2835-Debug-test-for-curr_msg.patch | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/0001-i2c-bcm2835-Debug-test-for-curr_msg.patch b/0001-i2c-bcm2835-Debug-test-for-curr_msg.patch new file mode 100644 index 000000000..4d4f0cb0f --- /dev/null +++ b/0001-i2c-bcm2835-Debug-test-for-curr_msg.patch @@ -0,0 +1,29 @@ +From 81c53729ee7c7f721c357ed3b531ebc97ca44051 Mon Sep 17 00:00:00 2001 +From: Eric Anholt <eric@anholt.net> +Date: Wed, 15 Feb 2017 11:57:57 -0800 +Subject: [PATCH] i2c-bcm2835: Debug test for curr_msg + +Signed-off-by: Eric Anholt <eric@anholt.net> +--- + drivers/i2c/busses/i2c-bcm2835.c | 5 ++++- + 1 file changed, 4 insertions(+), 1 deletion(-) + +diff --git a/drivers/i2c/busses/i2c-bcm2835.c b/drivers/i2c/busses/i2c-bcm2835.c +index c3436f627028..a75fab4dd660 100644 +--- a/drivers/i2c/busses/i2c-bcm2835.c ++++ b/drivers/i2c/busses/i2c-bcm2835.c +@@ -195,7 +195,10 @@ static irqreturn_t bcm2835_i2c_isr(int this_irq, void *data) + } + + if (val & BCM2835_I2C_S_DONE) { +- if (i2c_dev->curr_msg->flags & I2C_M_RD) { ++ if (!i2c_dev->curr_msg) { ++ dev_info(i2c_dev->dev, ++ "Processing DONE interrupt with no msg\n"); ++ } else if (i2c_dev->curr_msg->flags & I2C_M_RD) { + bcm2835_drain_rxfifo(i2c_dev); + val = bcm2835_i2c_readl(i2c_dev, BCM2835_I2C_S); + } +-- +2.11.0 + |