Re: [PATCH v2 6/6] regulator: qcom-spmi: Add vendor specific configuration

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On Thu, Jun 11, 2015 at 8:13 PM, Rob Herring <robherring2@xxxxxxxxx> wrote:
> On Thu, Jun 11, 2015 at 7:37 PM, Stephen Boyd <sboyd@xxxxxxxxxxxxxx> wrote:
>> Add support for over current protection (OCP), pin control
>> selection, soft start and soft start strength, auto-mode, input
>> current limiting, and pull down.
>>
>> Cc: <devicetree@xxxxxxxxxxxxxxx>
>> Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxxxxxx>
>> ---
>>
>> Changes from v1:
>> * New patch split from original SPMI regulator driver
>>
>>  .../bindings/regulator/qcom,spmi-regulator.txt     |  62 +++++
>>  drivers/regulator/qcom_spmi-regulator.c            | 298 ++++++++++++++++++++-
>>  2 files changed, 358 insertions(+), 2 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt b/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt
>> index 75b4604bad07..ab01a152e930 100644
>> --- a/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt
>> +++ b/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt
>> @@ -99,6 +99,68 @@ see regulator.txt - with additional custom properties described below:
>>                     soft start are active all the time. 0 = Set initial mode to
>>                     low power mode (LPM).
>>
>> +- qcom,auto-mode-enable:
>
> Auto regulator modes are fairly common. Can't we have a common property here?
>

I went with a similar set of booleans for mode selection in the
initial rpm driver for family A, but Kumar objected to this. So there
I ended up with "qcom,force-mode" - taking an enum - instead (see
mfd/qcom-rpm.txt). It would be nice if the various regulator drivers
have similar bindings...

>> +       Usage: optional
>> +       Value type: <u32>
>
> This can be bool. Unless we want to have a mode property with "auto"
> being one possible value.
>
>> +       Description: 1 = Enable automatic hardware selection of regulator
>> +                        mode (HPM vs LPM); not available on boost type
>> +                        regulators. 0 = Disable auto mode selection.
>> +

Regards,
Bjorn
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