linux-kernel - Re: [PATCH 1/4] dt-bindings: regulator: Add labibb regulator

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Date:   Tue, 18 Jun 2019 11:22:45 +0530
From:   Nisha Kumari <nishakumari@...eaurora.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     broonie@...nel.org, robh+dt@...nel.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        agross@...nel.org, lgirdwood@...il.com, mark.rutland@....com,
        david.brown@...aro.org, linux-kernel@...r.kernel.org,
        kgunda@...eaurora.org, rnayak@...eaurora.org
Subject: Re: [PATCH 1/4] dt-bindings: regulator: Add labibb regulator


On 6/13/2019 9:58 PM, Bjorn Andersson wrote:
> On Wed 12 Jun 04:00 PDT 2019, Nisha Kumari wrote:
>
>> Adding the devicetree binding for labibb regulator.
>>
>> Signed-off-by: Nisha Kumari <nishakumari@...eaurora.org>
>> ---
>>   .../bindings/regulator/qcom-labibb-regulator.txt   | 57 ++++++++++++++++++++++
>>   1 file changed, 57 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/regulator/qcom-labibb-regulator.txt
>>
>> diff --git a/Documentation/devicetree/bindings/regulator/qcom-labibb-regulator.txt b/Documentation/devicetree/bindings/regulator/qcom-labibb-regulator.txt
>> new file mode 100644
>> index 0000000..79aad6f4
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/regulator/qcom-labibb-regulator.txt
>> @@ -0,0 +1,57 @@
>> +Qualcomm's LAB(LCD AMOLED Boost)/IBB(Inverting Buck Boost) Regulator
>> +
>> +LAB can be used as a positive boost power supply and IBB can be used as a negative
>> +boost power supply for display panels.
>> +
>> +Main node required properties:
>> +
>> +- compatible:			Must be:
>> +				"qcom,lab-ibb-regulator"
> In order to handle variations in future LABIBB implementations, make
> this "qcom,pmi8998-lab-ibb";
Sure, i will do that.
>
>> +- #address-cells:		Must be 1
>> +- #size-cells:			Must be 0
>> +
>> +LAB subnode required properties:
>> +
>> +- reg:				Specifies the SPMI address and size for this peripheral.
>> +- regulator-name:		A string used to describe the regulator.
>> +- interrupts:			Specify the interrupts as per the interrupt
>> +				encoding.
>> +- interrupt-names:		Interrupt names to match up 1-to-1 with
>> +				the interrupts specified in 'interrupts'
>> +				property.
>> +
>> +IBB subnode required properties:
>> +
>> +- reg:				Specifies the SPMI address and size for this peripheral.
>> +- regulator-name:		A string used to describe the regulator.
>> +- interrupts:			Specify the interrupts as per the interrupt
>> +				encoding.
>> +- interrupt-names:		Interrupt names to match up 1-to-1 with
>> +				the interrupts specified in 'interrupts'
>> +				property.
>> +
>> +Example:
>> +	pmi8998_lsid1: pmic@3 {
>> +		qcom-labibb-regulator {
> We typically want to use generic names here, but as the spmi regulator
> binding suggest the use of "regulators" without a unit address that
> wouldn't work.
>
> But you can shorten this to either "labibb" or at least
> "labibb-regulator".
Sure, i will do that.
>> +			compatible = "qcom,lab-ibb-regulator";
>> +			#address-cells = <1>;
>> +			#size-cells = <0>;
>> +
>> +			lab_regulator: qcom,lab@...0 {
> Don't use "qcom," in the node names.
ok
>
>> +				reg = <0xde00>;
> Please follow the spmi-regulator and hide these in the driver.
ok
>> +				regulator-name = "lab_reg";
> We know it's a regulator, so no need for _reg, which means that if you
> drop "qcom," from the node name and use the node name as the default
> regulator name you don't need this.
Sure, i will do that.
>
>> +
>> +				interrupts = <0x3 0xde 0x0 IRQ_TYPE_EDGE_RISING>;
>> +				interrupt-names = "lab-sc-err";
>> +			};
>> +
>> +			ibb_regulator: qcom,ibb@...0 {
>> +				reg = <0xdc00>;
>> +				regulator-name = "ibb_reg";
>> +
>> +				interrupts = <0x3 0xdc 0x2 IRQ_TYPE_EDGE_RISING>;
>> +				interrupt-names = "ibb-sc-err";
>> +			};
>> +
>> +		};
>> +	};
> Regards,
> Bjorn