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authorNico Huber <nico.h@gmx.de>2022-08-01 19:32:37 +0200
committerFelix Held <felix-coreboot@felixheld.de>2022-08-03 20:55:14 +0000
commit51a35764b31d987b624c60dab7a86b355998a184 (patch)
tree5efa09160ad5066c1d8751c0ae0221ac0bdf62a2
parent245fe4bd2933f43b9203f0c602bf59d3bf98ce21 (diff)
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dev/i2c_bus: Fix `count` argument in i2c_dev_detect()
We actually want the bus driver to process the 1 zero-length write we are passing. So set the count to 1. Change-Id: I5a41abb68c27a83715b6baec91ece9fa90b66a8c Signed-off-by: Nico Huber <nico.h@gmx.de> Tested-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/66337 Reviewed-by: Matt DeVillier <matt.devillier@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Crawford <tcrawford@system76.com>
-rw-r--r--src/device/i2c_bus.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/device/i2c_bus.c b/src/device/i2c_bus.c
index bccd9a8c973..8368c247b8d 100644
--- a/src/device/i2c_bus.c
+++ b/src/device/i2c_bus.c
@@ -9,7 +9,7 @@
bool i2c_dev_detect(struct device *dev, unsigned int addr)
{
struct i2c_msg seg = { .flags = 0, .slave = addr, .buf = NULL, .len = 0 };
- return dev->ops->ops_i2c_bus->transfer(dev, &seg, 0) == 0;
+ return dev->ops->ops_i2c_bus->transfer(dev, &seg, 1) == 0;
}
struct bus *i2c_link(const struct device *const dev)