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media: cec: core: don't set last_initiator if tx in progress

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[ Upstream commit 73af6c7511038249cad3d5f3b44bf8d78ac0f499 ]

When a message was received the last_initiator is set to 0xff.
This will force the signal free time for the next transmit
to that for a new initiator. However, if a new transmit is
already in progress, then don't set last_initiator, since
that's the initiator of the current transmit. Overwriting
this would cause the signal free time of a following transmit
to be that of the new initiator instead of a next transmit.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Hans Verkuil 2023-04-24 16:07:28 +01:00 committed by Greg Kroah-Hartman
parent a69a15a1e7
commit c32b39d070
1 changed files with 2 additions and 1 deletions
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drivers/media/cec/cec-adap.c
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@ -1077,7 +1077,8 @@ void cec_received_msg_ts(struct cec_adapter *adap,
mutex_lock(&adap->lock);
dprintk(2, "%s: %*ph\n", __func__, msg->len, msg->msg);
adap->last_initiator = 0xff;
if (!adap->transmit_in_progress)
adap->last_initiator = 0xff;
/* Check if this message was for us (directed or broadcast). */
if (!cec_msg_is_broadcast(msg))