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* PM8916 RPM regulator supply names too long
@ 2017-12-12 15:11 Will Newton
  2017-12-13  0:15 ` Bjorn Andersson
  0 siblings, 1 reply; 2+ messages in thread
From: Will Newton @ 2017-12-12 15:11 UTC (permalink / raw)
  To: linux-arm-msm

Hi,

I noticed that in drivers/regulator/qcom_smd-regulator.c there are
supply names such as:

"vdd_l8_l9_l10_l11_l12_l13_l14_l15_l16_l17_l18"

This gets looked up in the DT (with the string "-supply" appended) but
this will always fail due to the name exceeding the 32 character
maximum of a DT attribute and getting truncated. Is this a known
issue? I'm curious as to why MSM8916 users are not finding this a
problem in practice.

^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: PM8916 RPM regulator supply names too long
  2017-12-12 15:11 PM8916 RPM regulator supply names too long Will Newton
@ 2017-12-13  0:15 ` Bjorn Andersson
  0 siblings, 0 replies; 2+ messages in thread
From: Bjorn Andersson @ 2017-12-13  0:15 UTC (permalink / raw)
  To: Will Newton; +Cc: linux-arm-msm

On Tue 12 Dec 07:11 PST 2017, Will Newton wrote:

> Hi,
> 
> I noticed that in drivers/regulator/qcom_smd-regulator.c there are
> supply names such as:
> 
> "vdd_l8_l9_l10_l11_l12_l13_l14_l15_l16_l17_l18"
> 
> This gets looked up in the DT (with the string "-supply" appended) but
> this will always fail due to the name exceeding the 32 character
> maximum of a DT attribute and getting truncated.

That's not good, I guess we have to game the system and rename this
"vdd_l8-l18" or something like that.

> Is this a known issue? I'm curious as to why MSM8916 users are not
> finding this a problem in practice.

I haven't heard anyone complain about this before.

The reason why we haven't this this issue is because at least on db410c
the supply is vph_pwr which is an always on, fixed, 3.7V line, which we
don't describe in DT (but probably should for completeness).

Regards,
Bjorn

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2017-12-12 15:11 PM8916 RPM regulator supply names too long Will Newton
2017-12-13  0:15 ` Bjorn Andersson

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