]> git.itanic.dy.fi Git - linux-stable/commit
firmware: arm_scmi: Fix the asynchronous reset requests
authorCristian Marussi <cristian.marussi@arm.com>
Wed, 17 Aug 2022 17:27:30 +0000 (18:27 +0100)
committerSudeep Holla <sudeep.holla@arm.com>
Tue, 23 Aug 2022 11:21:37 +0000 (12:21 +0100)
commitb75c83d9b961fd3abf7310f8d36d5e6e9f573efb
treecbd842ac01cb40453b4439fc9c1bdcdba3a64b20
parente9076ffbcaed5da6c182b144ef9f6e24554af268
firmware: arm_scmi: Fix the asynchronous reset requests

SCMI Reset protocol specification allows the asynchronous reset request
only when an autonomous reset action is specified. Reset requests based
on explicit assert/deassert of signals should not be served
asynchronously.

Current implementation will instead issue an asynchronous request in any
case, as long as the reset domain had advertised to support asynchronous
resets.

Avoid requesting the asynchronous resets when the reset action is not
of the autonomous type, even if the target reset domain does, in general,
support the asynchronous requests.

Link: https://lore.kernel.org/r/20220817172731.1185305-6-cristian.marussi@arm.com
Fixes: 95a15d80aa0d ("firmware: arm_scmi: Add RESET protocol in SCMI v2.0")
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
drivers/firmware/arm_scmi/reset.c