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Add patch to work around crash on RPi3

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Peter Robinson 2017-02-16 10:00:34 +00:00
parent f43646ce1a
commit 8f1aa901ec
2 changed files with 34 additions and 0 deletions
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29
0001-i2c-bcm2835-Debug-test-for-curr_msg.patch Normal file
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@ -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

5
kernel.spec
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@ -530,6 +530,10 @@ Patch432: bcm283x-VEC.patch
# http://www.spinics.net/lists/dri-devel/msg132235.html
Patch433: drm-vc4-Fix-OOPSes-from-trying-to-cache-a-partially-constructed-BO..patch
# Fix RPi3 from crashing. Nowhere near a final fix but provides breathing room while that is sorted
# https://github.com/anholt/linux/issues/89
Patch434: 0001-i2c-bcm2835-Debug-test-for-curr_msg.patch
# http://www.spinics.net/lists/arm-kernel/msg552554.html
Patch438: arm-imx6-hummingboard2.patch
@ -2174,6 +2178,7 @@ fi
%changelog
* Wed Feb 15 2017 Peter Robinson <pbrobinson@fedoraproject.org>
- Enable PWRSEQ_SIMPLE module (fixes rhbz 1377816)
- Add patch to work around crash on RPi3
* Tue Feb 14 2017 Justin M. Forbes <jforbes@fedoraproject.org> - 4.10.0-0.rc8.git0.2
- Reenable debugging options.