[PATCH 07/11] ARM: dts: sunxi: Add dtsi file for AXP809 PMIC

On Tue, Feb 9, 2016 at 12:22 AM, Mark Brown [off-list ref] wrote:

On Mon, Feb 08, 2016 at 10:56:05PM +0800, Chen-Yu Tsai wrote:

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On Mon, Feb 8, 2016 at 10:53 PM, Mark Brown [off-list ref] wrote:

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On Sat, Feb 06, 2016 at 08:42:24PM +0800, Chen-Yu Tsai wrote:

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Mark, may I assume you are OK with this DTS include listing
the regulators, even if their sections are empty?

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If it has no content why have it?

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I'd like the regulator core to disable any unused ones. The core
considers regulators that don't have nodes as not having constraints,
and won't touch them.

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Any other ways to do this? Or am I going about this the wrong way?

The whole point with constraints is that they describe what is safe on a
given board.  This includes powering off unused regulators - it should
be something that the system integrator configures, not something that
they get as default.

OK. So how should one describe a regulator as unused? Just leave it out
since it's not wired to anything? Or have an empty node at the board
level? One of the regulators involved on my board is by (hardware)
default on.

Thanks
ChenYu