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authorJavier Martinez Canillas <javier.martinez@collabora.co.uk>2014-11-10 16:43:51 +0300
committerMark Brown <broonie@kernel.org>2014-11-26 21:58:14 +0300
commit218094c975e03b3b202663901a3bbf91041fdd20 (patch)
treec3bfc8cbf3f182f6f19bd0c15ebfba98a3e761da /Documentation
parent8cbcaea89cfc4603c954f50aaddc3172446961d1 (diff)
downloadlinux-218094c975e03b3b202663901a3bbf91041fdd20.tar.xz
regulator: Document binding for initial and suspend modes
Some regulators can run on different operating modes (opmodes). This allows systems to choose the most efficient opmode for each regulator. This patch builds on top of (291d761 regulator: Document binding for regulator suspend state for PM state) adding a regulator-initial-mode DT property to configure at startup the operating mode for regulators that support changing its mode during normal operation and a property regulator-mode to be used in the regulator-state-[mem/disk] nodes for regulators that supports changing its operating mode when the system enters in a suspend state. The set of possible modes that a regulator can operate depends on the hardware capabilities so a list of generic operating modes can't be provided. Instead, each hardware binding should define the list of valid operating modes for the regulators found on that device. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/regulator/regulator.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/regulator/regulator.txt b/Documentation/devicetree/bindings/regulator/regulator.txt
index 4e7ed762b3bb..abb26b58c83e 100644
--- a/Documentation/devicetree/bindings/regulator/regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/regulator.txt
@@ -30,6 +30,13 @@ Optional properties:
- regulator-off-in-suspend: regulator should be off in suspend state.
- regulator-suspend-microvolt: regulator should be set to this voltage
in suspend.
+ - regulator-mode: operating mode in the given suspend state.
+ The set of possible operating modes depends on the capabilities of
+ every hardware so the valid modes are documented on each regulator
+ device tree binding document.
+- regulator-initial-mode: initial operating mode. The set of possible operating
+ modes depends on the capabilities of every hardware so each device binding
+ documentation explains which values the regulator supports.
Deprecated properties:
- regulator-compatible: If a regulator chip contains multiple