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From: Karol Wrona <>
Cc: "Rafael J. Wysocki" <>,
	Amit Daniel Kachhap <>,
	Ulf Hansson <>,
	Bartlomiej Zolnierkiewicz <>,
	Kyungmin Park <>,
	Karol Wrona <>,
	Karol Wrona <>
Subject: [RFC PATCH 0/1] PM / domains: Add support for virtual power domains
Date: Thu, 29 Jan 2015 19:12:55 +0100	[thread overview]
Message-ID: <> (raw)


This patch adds virtual power domain handling.  Some comments are needed if
such approach has any sense.  The goal is to know the state of devices
residing in domain which is never gated or are gated only during sleep.
I.e. in Exynos3250 SoC there is one domain which is only put into retention
in LPD state and to enter it some devices (i.e. mmc host controller) have
to be inactive.  Using domains and runtime PM it would be able to give
an information to PM core that the SoC is ready for deeper power state.

TODO: binding doc, add child-parent hierarchy 


Karol Wrona (1):
  PM / domains: Add support for virtual power domains

 drivers/base/power/Makefile          |    3 +-
 drivers/base/power/pm_domains_virt.c |   54 ++++++++++++++++++++++++++++++++++
 2 files changed, 56 insertions(+), 1 deletion(-)
 create mode 100644 drivers/base/power/pm_domains_virt.c


             reply	other threads:[~2015-01-29 18:13 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-29 18:12 Karol Wrona [this message]
2015-01-29 18:12 ` [RFC PATCH 1/1] " Karol Wrona
2015-01-30  8:43   ` amit daniel kachhap
2015-01-30 11:57     ` Lorenzo Pieralisi
2015-02-02 12:14       ` Karol Wrona

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