kernel/git/stable/linux.git/drivers/media/cec, branch linux-6.0.y

media: platform: cros-ec: Add Kuldax to the match table

2022-11-10T17:17:23+00:00

[ Upstream commit 594b6bdde2e7833a56413de5092b6e4188d33ff7 ] The Google Kuldax device uses the same approach as the Google Brask which enables the HDMI CEC via the cros-ec-cec driver. Signed-off-by: Rory Liu Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin

media: cros-ec-cec: limit msg.len to CEC_MAX_MSG_SIZE

2022-11-10T17:17:23+00:00

[ Upstream commit 2dc73b48665411a08c4e5f0f823dea8510761603 ] I expect that the hardware will have limited this to 16, but just in case it hasn't, check for this corner case. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin

media: s5p_cec: limit msg.len to CEC_MAX_MSG_SIZE

2022-11-10T17:17:23+00:00

[ Upstream commit 93f65ce036863893c164ca410938e0968964b26c ] I expect that the hardware will have limited this to 16, but just in case it hasn't, check for this corner case. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin

media: platform: cros-ec: Add kinox to the match table

2022-06-27T07:54:29+00:00

The Google Kinox device uses the same approach as the Google Brask which enables the HDMI CEC via the cros-ec-cec driver. Signed-off-by: Ajye Huang Reviewed-by: Guenter Roeck Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: platform: cros-ec: Add moli to the match table

2022-06-20T09:30:34+00:00

The Google Moli device uses the same approach as the Google Brask which enables the HDMI CEC via the cros-ec-cec driver. Signed-off-by: Scott Chao Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: cec-adap.c: log when claiming LA fails unexpectedly

2022-06-20T09:30:30+00:00

If there is a hardware problem such as someone pulling the CEC line low continuously, then the POLL message will fail with an error other than OK, NACK, ABORTED or TIMEOUT. Log the tx_status value in that case to help debug this. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: cec-adap.c: drop activate_cnt, use state info instead

2022-05-13T09:29:39+00:00

Using an activation counter to decide when the enable or disable the cec adapter is not the best approach and can lead to race conditions. Change this to determining the current status of the adapter, and enable or disable the adapter accordingly. It now only needs to be called whenever there is a chance that the state changes, and it can handle enabling/disabling monitoring as well if needed. This simplifies the code and it should be a more robust approach as well. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: cec-adap.c: reconfigure if the PA changes during configuration

2022-05-13T09:29:16+00:00

If the physical address changes (i.e. becomes invalid, then valid again) while the adapter is still claiming free logical addresses, then trigger a reconfiguration since any claimed LAs may now be stale. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: cec-adap.c: fix is_configuring state

2022-05-13T09:28:54+00:00

If an adapter is trying to claim a free logical address then it is in the 'is_configuring' state. If during that process the cable is disconnected (HPD goes low, which in turn invalidates the physical address), then cec_adap_unconfigure() is called, and that set the is_configuring boolean to false, even though the thread that's trying to claim an LA is still running. Don't touch the is_configuring bool in cec_adap_unconfigure(), it will eventually be cleared by the thread. By making that change the cec_config_log_addr() function also had to change: it was aborting if is_configuring became false (since that is what cec_adap_unconfigure() did), but that no longer works. Instead check if the physical address is invalid. That is a much more appropriate check anyway. This fixes a bug where the the adapter could be disabled even though the device was still configuring. This could cause POLL transmits to time out. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: cec-adap.c: stop trying LAs on CEC_TX_STATUS_TIMEOUT

2022-05-13T09:28:35+00:00

If, while trying to claim a free logical address, a POLL message times out, then abort this process. A CEC_TX_STATUS_TIMEOUT should be handled the same as a CEC_TX_STATUS_ABORTED. This avoids a situation where transmits time out due to a driver or hardware bug and it takes ages before the attempt to find available free logical addresses finishes. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab