linux-kernel - Re: [PATCH 3/5] arm64: boot: dts: ti: k3-am68-sk-base-board: Add LP8733 and TPS6287 nodes

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Date: Wed, 8 May 2024 12:18:53 +0530
From: Neha Malcom Francis <n-francis@...com>
To: "Kumar, Udit" <u-kumar1@...com>, <robh@...nel.org>, <conor+dt@...nel.org>,
        <krzk+dt@...nel.org>, <kristo@...nel.org>, <vigneshr@...com>,
        <nm@...com>, <broonie@...nel.org>, <lgirdwood@...il.com>
CC: <marten.lindahl@...s.com>, <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/5] arm64: boot: dts: ti: k3-am68-sk-base-board: Add
 LP8733 and TPS6287 nodes

Hi Udit

On 08/05/24 10:25, Kumar, Udit wrote:
> Hi Neha
> 
> On 5/7/2024 5:51 PM, Neha Malcom Francis wrote:
>> Add DTS node for LP87334E PMIC and two TPS6287x high current buck
>> converters.
>>
>> LP87334E is responsible for supplying power to the MCU and MAIN domains
>> as well as to LPDDR4. The two TPS6287x supply power to the MAIN
>> domain for AVS and other core supplies.
>>
>> Signed-off-by: Neha Malcom Francis <n-francis@...com>
>> Link: https://www.ti.com/lit/pdf/slda060
>> ---
>> [..]
>> +    tps62873b: tps62873@43 {
>> +        compatible = "ti,tps6287x";
>> +        bootph-pre-ram;
> 
> I think,  we don;t need bootph-pre-ram for fixed regulator,
> 
> Please check once, if really bootph-pre-ram needed here
> 

Yeah, there's no need for the bootloader needing this regulator at present. Will 
make the change, thanks!

> 
>> +        reg = <0x43>;
>> +        regulator-name = "VDD_CORE_0V8";
>> +        regulator-min-microvolt = <800000>;
>> +        regulator-max-microvolt = <800000>;
>> +        regulator-boot-on;
>> +        regulator-always-on;
>> +    };
>> +};
>> +
>>   &mcu_uart0 {
>>       status = "okay";
>>       pinctrl-names = "default";

-- 
Thanking You
Neha Malcom Francis