linux-kernel - Re: [PATCH] regulator: qcom-rpmh: Fix pm8010 pmic5

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Message-ID: <3851e21f-f8cb-487b-9ed4-9975949ff922@linaro.org>
Date: Wed, 14 Feb 2024 14:44:56 +0000
From: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
To: Mark Brown <broonie@...nel.org>,
 Bryan O'Donoghue <bryan.odonoghue@...aro.org>
Cc: andersson@...nel.org, konrad.dybcio@...aro.org, lgirdwood@...il.com,
 quic_fenglinw@...cinc.com, quic_collinsd@...cinc.com,
 linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] regulator: qcom-rpmh: Fix pm8010 pmic5_pldo502ln minimum
 voltage

On 14/02/2024 14:13, Mark Brown wrote:
> On Wed, Feb 14, 2024 at 02:07:13PM +0000, Bryan O'Donoghue wrote:
>> On 14/02/2024 13:25, Mark Brown wrote:
>>> On Wed, Feb 14, 2024 at 12:16:14PM +0000, Bryan O'Donoghue wrote:
> 
>>>>    	.voltage_ranges = (struct linear_range[]) {
>>>> -		REGULATOR_LINEAR_RANGE(1800000, 0,  2,  200000),
>>>> +		REGULATOR_LINEAR_RANGE(1808000, 0,  2,  200000),
> 
>>> This will also offset all other voltages that get set, is that expected
>>> and desired?
> 
>> Yep, looks typo in the original submission.
> 
>> ldo3, ldo4 and ldo6 should all be 1.808.
> 
> Not just that but also note that every voltage step in the range will
> have the 8mV offset added.

The documents I have just show sensors attached to ldo3, ldo4 and ldo6 
fixed at 1.808.

I don't think there's any better or different information than a 
+200000uV increment TBH.

---
bod