Data abort was occurring when using "w1 bus" with a DS24B33 present.
The abort occurred in the ds24xxx_probe() because the struct w1_device
pointer was NULL. This is because that structure is allocated by
the parent device uclass (by .per_child_platdata_auto_alloc_size)
and thus the correct accessor is dev_get_parent_platdata() not
dev_get_platdata()
Signed-off-by: Martin Fuzzey <martin.fuzzey@flowbird.group>
---
drivers/w1-eeprom/ds24xxx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/w1-eeprom/ds24xxx.c b/drivers/w1-eeprom/ds24xxx.c
index 56186e5..0967acc 100644
--- a/drivers/w1-eeprom/ds24xxx.c
+++ b/drivers/w1-eeprom/ds24xxx.c
@@ -31,7 +31,7 @@ static int ds24xxx_probe(struct udevice *dev)
{
struct w1_device *w1;
- w1 = dev_get_platdata(dev);
+ w1 = dev_get_parent_platdata(dev);
w1->id = 0;
return 0;
}
--
1.9.1
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