On 01/08/14 06:21, Mark Rutland wrote:
> On Tue, Dec 24, 2013 at 12:39:45AM +0000, Stephen Boyd wrote:
>> From: Rohit Vaswani <[email protected]>
>>
>> Scorpion and Krait don't use the spin-table enable-method.
>> Instead they rely on mmio register accesses to enable power and
>> clocks to bring CPUs out of reset. Document their enable-methods.
>>
>> Cc: <[email protected]>
>> Signed-off-by: Rohit Vaswani <[email protected]>
>> [sboyd: Split off into separate patch, renamed methods to
>> match compatible nodes]
>> Signed-off-by: Stephen Boyd <[email protected]>
>> ---
>>  Documentation/devicetree/bindings/arm/cpus.txt | 25 
>> ++++++++++++++++++++++++-
>>  1 file changed, 24 insertions(+), 1 deletion(-)
>>
>> diff --git a/Documentation/devicetree/bindings/arm/cpus.txt 
>> b/Documentation/devicetree/bindings/arm/cpus.txt
>> index 9130435..333f4ae 100644
>> --- a/Documentation/devicetree/bindings/arm/cpus.txt
>> +++ b/Documentation/devicetree/bindings/arm/cpus.txt
>> @@ -180,7 +180,11 @@ nodes to be present and contain the properties 
>> described below.
>>                        be one of:
>>                           "spin-table"
>>                           "psci"
>> -                    # On ARM 32-bit systems this property is optional.
>> +                    # On ARM 32-bit systems this property is optional and
>> +                      can be one of:
>> +                        "qcom,gcc-msm8660"
>> +                        "qcom,kpss-acc-v1"
>> +                        "qcom,kpss-acc-v2"
> It would be nice to document "psci" here as valid for 32-bit.
>
> Currently the PSCI code doesn't inspect the enable-method and assumes it
> if there's a psci node, but KVM tool and others set enable-method to
> "psci", and if we change the way the PSCI code probes it will require
> enable-method to be set for PSCI to work.

Sure. I'll squash it in if I resend, or send a follow-up patch later on.

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