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Date: Mon, 10 Nov 2014 14:43:51 +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 v6 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 v6: - Remove assumptions about implementation details and don't overspecify. Suggested by Mark Brown. 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 | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/regulator/regulator.txt b/Documentation/devicetree/bindings/regulator/regulator.txt index 4e7ed76..abb26b5 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 -- 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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