Mark Brown [off-list ref] 於 2020年8月25日 週二 上午3:49寫道：

On Mon, Aug 24, 2020 at 03:21:57PM +0800, Gene Chen wrote:

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On Thu, Aug 20, 2020 at 03:53:42PM +0800, Gene Chen wrote:

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+  LDO_VIN3-supply:
+    description: Input supply phandle(s) for LDO3

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Only LDO3 needs a supply?

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LDO_VIN1/LDO_VIN2 is real MT6360 pin supply from VSYS to LDO1/2/3/5
LDO_VIN3 is also real pin supply from BUCK2 to LDO6/7

So shouldn't there be a documented LDO_VIN1/2 then?

LDO_VINx is HW design layout, so actually it can't be changed by device tree.
LDO_VIN1/LDO_VIN2 supply from VSYS, not regulator, so I think usually
not to show the supply from in device tree.
or I should declare a dummy reference to system power like "*-supply =
<&system_power>;"?