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authorTomasz Figa <tomasz.figa@gmail.com>2014-09-19 20:27:36 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-09-22 15:57:40 +0200
commitaa42240ab2544a8bcb2efb400193826f57f3175e (patch)
tree00ce21c5dfdf974340f0e0921dd1a91bc77f3292 /kernel/power
parent86f1e15f5646b4855bd77025c950239650c4843e (diff)
downloadlinux-aa42240ab2544a8bcb2efb400193826f57f3175e.tar.bz2
PM / Domains: Add generic OF-based PM domain look-up
This patch introduces generic code to perform PM domain look-up using device tree and automatically bind devices to their PM domains. Generic device tree bindings are introduced to specify PM domains of devices in their device tree nodes. Backwards compatibility with legacy Samsung-specific PM domain bindings is provided, but for now the new code is not compiled when CONFIG_ARCH_EXYNOS is selected to avoid collision with legacy code. This will change as soon as the Exynos PM domain code gets converted to use the generic framework in further patch. This patch was originally submitted by Tomasz Figa when he was employed by Samsung. Link: http://marc.info/?l=linux-pm&m=139955349702152&w=2 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Rob Herring <robh@kernel.org> Tested-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'kernel/power')
-rw-r--r--kernel/power/Kconfig4
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig
index e4e4121fa327..897619b11fb2 100644
--- a/kernel/power/Kconfig
+++ b/kernel/power/Kconfig
@@ -302,6 +302,10 @@ config PM_GENERIC_DOMAINS_RUNTIME
def_bool y
depends on PM_RUNTIME && PM_GENERIC_DOMAINS
+config PM_GENERIC_DOMAINS_OF
+ def_bool y
+ depends on PM_GENERIC_DOMAINS && OF && !ARCH_EXYNOS
+
config CPU_PM
bool
depends on SUSPEND || CPU_IDLE