]> git.baikalelectronics.ru Git - kernel.git/commit
cpuidle: psci: Fail cpuidle registration if set OSI mode failed
authorUlf Hansson <ulf.hansson@linaro.org>
Tue, 7 Jul 2020 12:58:01 +0000 (14:58 +0200)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Wed, 29 Jul 2020 16:38:30 +0000 (18:38 +0200)
commit2a98641e152f8b9f65ae5d21860d1386ea417b13
tree544db595bd41cb3f69a4492255fe72c01b882a1c
parent0b9f3104be530d9122de4d45e5e82a85b842652d
cpuidle: psci: Fail cpuidle registration if set OSI mode failed

Currently we allow the cpuidle driver registration to succeed, even if we
failed to enable the OSI mode when the hierarchical DT layout is used. This
means running in a degraded mode, by using the available idle states per
CPU, while also preventing the domain idle states.

Moving forward, this behaviour looks quite questionable to maintain, as
complexity seems to grow around it, especially when trying to add support
for deferred probe, for example.

Therefore, let's make the cpuidle driver registration to fail in this
situation, thus relying on the default architectural cpuidle backend for
WFI to be used.

Reviewed-by: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
drivers/cpuidle/cpuidle-psci-domain.c