Re: [PATCH v8 3/3] regulator: axp20x: Add support for AXP313a variant

From: Shengyu Qu
Date: Sat Feb 18 2023 - 05:08:39 EST


Hi Martin,

On Sat, Jan 21, 2023 at 2:45 AM Martin Botka
<martin.botka@xxxxxxxxxxxxxx> wrote:
The AXP313a is your typical I2C controlled PMIC, although in a lighter
fashion compared to the other X-Powers PMICs: it has only three DCDC
rails, three LDOs, and no battery charging support.

The AXP313a datasheet does not describe a register to change the DCDC
switching frequency, and talks of it being fixed at 3 MHz. The BSP
driver hints at a register being able to change that, but we haven't
verified that, so leave that one out. It can be added later, if needed
and/or required.
The datasheet released by MangoPi says this isn't configurable. The
thing that is configurable is spread-spectrum operation, and mode
switching between fixed PWM and hybrid PFM/PWM. So just drop the
DCDC frequency stuff and use the default code path.

You could get full datasheet of AXP313A here:

https://github.com/YuzukiHD/YuzukiChameleon/blob/master/Datasheet/AXP313A_Datasheet_V1.0_cn.pdf

Btw I'm working on AXP15060 support mostly based on your series.


Best regards,

Shengyu

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