[PATCH v4 02/25] coresight: etm4x: Skip accessing TRCPDCR in save/restore

[Suzuki K Poulose]

On 11/27/20 6:55 PM, Mathieu Poirier wrote:
> On Thu, Nov 19, 2020 at 04:45:24PM +0000, Suzuki K Poulose wrote:
>> When the ETM is affected by Qualcomm errata, modifying the
>> TRCPDCR could cause the system hang. Even though this is
>> taken care of during enable/disable ETM, the ETM state
>> save/restore could still access the TRCPDCR. Make sure
>> we skip the access during the save/restore.
>>
>> Found by code inspection.
>>
>> Fixes: commit 02510a5aa78df45 ("coresight: etm4x: Add support to skip trace unit power up")
> 
> https://elixir.bootlin.com/linux/v5.10-rc5/source/Documentation/process/submitting-patches.rst#L121

Thanks, I will remove the "commit".

Suzuki