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Date: Fri, 7 Nov 2014 14:00:01 +0100 From: Javier Martinez Canillas <javier.martinez@...labora.co.uk> To: Mark Brown <broonie@...nel.org> Cc: Kukjin Kim <kgene.kim@...sung.com>, Chanwoo Choi <cw00.choi@...sung.com>, Olof Johansson <olof@...om.net>, Chris Zhong <zyw@...k-chips.com>, Krzysztof Kozlowski <k.kozlowski@...sung.com>, Abhilash Kesavan <kesavan.abhilash@...il.com>, linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, Javier Martinez Canillas <javier.martinez@...labora.co.uk> Subject: [PATCH v5 1/5] 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@...labora.co.uk> --- Changes in v5: None Changes in v4: None Changes in v3: - Rebased on top of regulator suspend voltage series Documentation/devicetree/bindings/regulator/regulator.txt | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/Documentation/devicetree/bindings/regulator/regulator.txt b/Documentation/devicetree/bindings/regulator/regulator.txt index 4e7ed76..3fffa3b 100644 --- a/Documentation/devicetree/bindings/regulator/regulator.txt +++ b/Documentation/devicetree/bindings/regulator/regulator.txt @@ -30,6 +30,20 @@ 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. + The "regulator-mode" property only takes effect if the regulator is + enabled for the given suspend state using "regulator-on-in-suspend". + If the regulator has not been explicitly disabled for the given state + with "regulator-off-in-suspend", then setting the operating mode + will also have no effect. +- regulator-initial-mode: initial operating mode. The set of possible operating + modes is the same used for the regulator-mode property and the device binding + documentation explains which property each regulator supports. +If no mode is defined, then the OS will not manage the modes and the hardware +default values will be used instead. Deprecated properties: - regulator-compatible: If a regulator chip contains multiple -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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