If a reset comes while the SMBus device is not in its idle state, it's
possible for it to get confused on valid transactions post-reset.
Signed-off-by: Joe Komlodi <koml...@google.com>
---
hw/i2c/smbus_slave.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/hw/i2c/smbus_slave.c b/hw/i2c/smbus_slave.c
index feb3ec6333..7b9d8780ae 100644
--- a/hw/i2c/smbus_slave.c
+++ b/hw/i2c/smbus_slave.c
@@ -197,10 +197,19 @@ static int smbus_i2c_send(I2CSlave *s, uint8_t data)
return 0;
}
+static void smbus_device_enter_reset(Object *obj, ResetType type)
+{
+ SMBusDevice *dev = SMBUS_DEVICE(obj);
+ dev->mode = SMBUS_IDLE;
+ dev->data_len = 0;
+}
+
static void smbus_device_class_init(ObjectClass *klass, void *data)
{
I2CSlaveClass *sc = I2C_SLAVE_CLASS(klass);
+ ResettableClass *rc = RESETTABLE_CLASS(klass);
+ rc->phases.enter = smbus_device_enter_reset;
sc->event = smbus_i2c_event;
sc->recv = smbus_i2c_recv;
sc->send = smbus_i2c_send;
--
2.40.0.rc2.332.ga46443480c-goog
