From: Stephen Boyd <sboyd-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
To: Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Bjorn Andersson
<bjorn.andersson-/MT0OVThwyLZJqsBc5GL+g@public.gmane.org>
Cc: Ian Campbell
<ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org>,
Kumar Gala <galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
Lee Jones <lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
Liam Girdwood <lgirdwood-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
Pawel Moll <pawel.moll-5wv7dgnIgG8@public.gmane.org>,
Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Andy Gross <agross-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
Chanwoo Choi <cw00.choi-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>,
Krzysztof Kozlowski
<k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>,
Srinivas Kandagatla
<srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
"devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [PATCH 4/4] regulator: qcom: Rework to single platform device
Date: Tue, 03 Mar 2015 16:01:43 -0800 [thread overview]
Message-ID: <54F64B67.9060608@codeaurora.org> (raw)
In-Reply-To: <20150303235209.GG21293-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
On 03/03/15 15:52, Mark Brown wrote:
> On Tue, Mar 03, 2015 at 02:32:35PM -0800, Bjorn Andersson wrote:
>> On Tue 03 Mar 14:09 PST 2015, Stephen Boyd wrote:
>>> How does this work for the case where we may not want to add all the
>>> regulators that a PMIC supports. I'm mostly thinking about the case
>>> where we want to use the pm8xxx-regulator driver for a few regulators
>>> and so we omit them from the DT for the RPM regulators.
>> An empty or non-existing regulator of_node will still be registered, but
>> without REGULATOR_CHANGE_STATUS nor REGULATOR_CHANGE_VOLTAGE; so any
>> operation on this regulator will fail with an -EPERM.
> ...but of course we'd never try any operations on it anyway as there
> would be no consumers.
Yes sounds fine. The only concern is that we're probably wasting memory
with things that won't ever "match" something in DT.
--
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a Linux Foundation Collaborative Project
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next prev parent reply other threads:[~2015-03-04 0:01 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-03 4:25 [PATCH 0/4] Refactor Qualcomm RPM regulator to single platform_device Bjorn Andersson
2015-03-03 4:25 ` [PATCH 1/4] mfd: devicetree: bindings: Add Qualcomm RPM regulator subnodes Bjorn Andersson
[not found] ` <1425356740-26285-2-git-send-email-bjorn.andersson-/MT0OVThwyLZJqsBc5GL+g@public.gmane.org>
2015-03-03 12:47 ` Mark Brown
[not found] ` <20150303124700.GN21293-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-03-03 16:02 ` Bjorn Andersson
2015-03-05 0:33 ` Mark Brown
2015-03-03 18:53 ` Stephen Boyd
2015-03-03 21:54 ` Bjorn Andersson
2015-03-03 22:02 ` Stephen Boyd
2015-03-03 22:17 ` Bjorn Andersson
2015-03-03 23:25 ` Stephen Boyd
2015-03-03 4:25 ` [PATCH 2/4] regulator: core: Expose init_data to of_parse_cb Bjorn Andersson
2015-03-03 12:50 ` Mark Brown
[not found] ` <20150303125033.GO21293-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-03-03 16:15 ` Bjorn Andersson
[not found] ` <20150303161541.GE26334-/MT0OVThwyLZJqsBc5GL+g@public.gmane.org>
2015-03-05 0:42 ` Mark Brown
2015-03-03 4:25 ` [PATCH 3/4] regulator: qcom: Refactor of-parsing code Bjorn Andersson
2015-03-03 14:13 ` Mark Brown
2015-03-03 16:26 ` Bjorn Andersson
2015-03-03 18:56 ` Stephen Boyd
2015-03-03 22:07 ` Bjorn Andersson
2015-03-03 4:25 ` [PATCH 4/4] regulator: qcom: Rework to single platform device Bjorn Andersson
2015-03-03 22:09 ` Stephen Boyd
2015-03-03 22:32 ` Bjorn Andersson
2015-03-03 23:52 ` Mark Brown
[not found] ` <20150303235209.GG21293-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-03-04 0:01 ` Stephen Boyd [this message]
2015-03-04 0:09 ` Mark Brown
2015-03-04 19:35 ` Stephen Boyd
2015-03-04 23:51 ` Bjorn Andersson
2015-03-05 0:56 ` Mark Brown
[not found] ` <54F75E8F.2070900-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2015-03-05 0:30 ` Mark Brown
2015-03-05 1:46 ` Stephen Boyd
2015-03-05 10:38 ` Mark Brown
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