diff options
| author | Sudeep Holla <sudeep.holla@arm.com> | 2016-04-22 16:18:02 +0100 |
|---|---|---|
| committer | Tao Huang <huangtao@rock-chips.com> | 2018-12-13 18:08:05 +0800 |
| commit | 7f344087401dbf17b802a41202dc9e832e5935f6 (patch) | |
| tree | cda11064a418aefe52826bbff3bfbf2661b38cde /Documentation | |
| parent | 1c6ad43bbcc025f029db4a06cc83b578c25f22ae (diff) | |
UPSTREAM: drivers: firmware: psci: unify enable-method binding on ARM {64,32}-bit systems
Currently ARM CPUs DT bindings allows different enable-method value for
PSCI based systems. On ARM 64-bit this property is required and must be
"psci" while on ARM 32-bit systems this property is optional and must
be "arm,psci" if present.
However, "arm,psci" has always been the compatible string for the PSCI
node, and was never intended to be the enable-method. So this is a bug
in the binding and not a deliberate attempt at specifying 32-bit
differently.
This is problematic if 32-bit OS is run on 64-bit system which has
"psci" as enable-method rather than the expected "arm,psci".
So let's unify the value into "psci" and remove support for "arm,psci"
before it finds any users.
Reported-by: Soby Mathew <Soby.Mathew@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
(cherry picked from commit 978fa436231a834dc686292efc7d944d9013e035)
Change-Id: Ie75091185d9236595c564081083ffc202f9ba178
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/arm/cpus.txt | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/arm/cpus.txt b/Documentation/devicetree/bindings/arm/cpus.txt index 5bc78b665bc8..5348af9ea6bd 100644 --- a/Documentation/devicetree/bindings/arm/cpus.txt +++ b/Documentation/devicetree/bindings/arm/cpus.txt @@ -190,7 +190,6 @@ nodes to be present and contain the properties described below. can be one of: "allwinner,sun6i-a31" "allwinner,sun8i-a23" - "arm,psci" "brcm,brahma-b15" "marvell,armada-375-smp" "marvell,armada-380-smp" |