linux-kernel - Re: [PATCH v2 1/4] dt-bindings: pinctrl: add a 'drive-strength-uA' property

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Message-ID: <7d1743ca-f45a-133f-6130-c77059d27de2@baylibre.com>
Date:   Tue, 30 Apr 2019 17:24:16 +0200
From:   guillaume La Roque <glaroque@...libre.com>
To:     Rob Herring <robh@...nel.org>
Cc:     linus.walleij@...aro.org, mark.rutland@....com,
        khilman@...libre.com, linux-gpio@...r.kernel.org,
        devicetree@...r.kernel.org, linux-amlogic@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/4] dt-bindings: pinctrl: add a 'drive-strength-uA'
 property

Hi Rob,


On 4/30/19 5:12 PM, Rob Herring wrote:
> On Thu, Apr 18, 2019 at 02:47:55PM +0200, Guillaume La Roque wrote:
>> This property allow drive-strength parameter in uA instead of mA.
>>
>> Signed-off-by: Guillaume La Roque <glaroque@...libre.com>
>> ---
>>  Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt | 3 +++
>>  1 file changed, 3 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
>> index cef2b5855d60..fc7018459aa2 100644
>> --- a/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
>> +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
>> @@ -258,6 +258,7 @@ drive-push-pull		- drive actively high and low
>>  drive-open-drain	- drive with open drain
>>  drive-open-source	- drive with open source
>>  drive-strength		- sink or source at most X mA
>> +drive-strength-uA	- sink or source at most X uA
>>  input-enable		- enable input on pin (no effect on output, such as
>>  			  enabling an input buffer)
>>  input-disable		- disable input on pin (no effect on output, such as
>> @@ -326,6 +327,8 @@ arguments are described below.
>>  
>>  - drive-strength takes as argument the target strength in mA.
>>  
>> +- drive-strength-uA takes as argument the target strength in uA.
>> +
> We have standard unit suffixes defined in bindings/property-units.txt. 
> Use them please.


thanks for your feedback and sorry i don't see this doc.

According to it i will update patch series with drive-strength-microamp


> Rob
Guillaume