How to disable a regulator of TPS65910

Nick Mortensen

Other Parts Discussed in Thread: TPS65910

Hi all

We are working with a custom board based in am335x-evm, using SDK 1.0 and kernel 3.14.

We have a TPS65910 PMIC in our board and I wonder how to disable some of the regulators we do not use.

Let's say we do not need VDIG1 regulator. I have read that by using Device Tree I can set min and max microvolts and configure and external sleep control. But, can I disable this regulator using the Device Tree or do I need to touch kernel code?

Regards.

over 9 years ago

0 Biser Gatchev-XID over 9 years ago

TI__Guru**** 393215 points

Hi,

I will ask the software team to comment.

0 Yordan Kovachev over 9 years ago

TI__Guru**** 161600 points

Hi Julio,

You should modify the tps65910.c driver. Use the I2C calls to write 00 in VDIG1_REG[1:0]ST, this should set the state of VDIG1 LDO to OFF.
You can find the TPS65910 document here: www.ti.com/.../tps65910.pdf

Best Regards,
Yordan

0 Nick Mortensen over 9 years ago in reply to Yordan Kovachev

Prodigy 70 points

Thank you Yordan.

That was the information we were looking for.

Regards.

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How to disable a regulator of TPS65910