linux-kernel - [PATCHv2 0/2] regulator: of: Add support for pasing regulator suspend state

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Message-id: <1402447283-11356-1-git-send-email-cw00.choi@samsung.com>
Date:	Wed, 11 Jun 2014 09:41:21 +0900
From:	Chanwoo Choi <cw00.choi@...sung.com>
To:	broonie@...nel.org, lgirdwood@...il.com, grant.likely@...aro.org,
	robh+dt@...nel.org
Cc:	myungjoo.ham@...sung.com, kyungmin.park@...sung.com,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	Chanwoo Choi <cw00.choi@...sung.com>
Subject: [PATCHv2 0/2] regulator: of: Add support for pasing regulator suspend
 state

The regulators would set different state/mode according to the kind of suspend
state. So regulation_constraints structure has already regulator suspend state filed.
This patch parse regulator suspend state from devicetree file.

For example:

	ldoX_reg: LDOx {
		regulator-name = "VAP_XXX_1.2V";
		regulator-min-microvolt = <1200000>;
		regulator-max-microvolt = <1200000>;
		regulator-always-on;

		regulator-initial-state = <3>;	/* PM_SUSPEND_MEM */
		regulator-state-standby {
			regulator-volt = <1200000>;
			regulator-mode = <0x2>;	/* REGULATOR_MODE_NORMAL */
		};

		regulator-state-mem {
			regulator-volt = <1200000>;
			regulator-mode = <0x8>;	/* REGULATOR_MODE_STANDBY */
			regulator-off-in-suspend;
		};

		regulator-state-disk {
			regulator-volt = <1200000>;
			regulator-mode = <0x2>;	/* REGULATOR_MODE_NORMAL */
			regulator-on-in-suspend;
		};
	};

Changes from v1:
- Check whether regulator-initial-state and regulator-mode is correct or not
- Add more detailed description about regulator-initial-state, regulator-mode
  and regulator-state-[standby/mem/disk] for devicetree bindings
- Modify example of regulator suspend state in bindings documentation

Chanwoo Choi (2):
  regulator: of: Add support for parsing regulator_state for suspend state
  dt-bindings: regulator: Add regulator suspend state for PM state

 .../devicetree/bindings/regulator/regulator.txt    | 32 +++++++++
 drivers/regulator/of_regulator.c                   | 76 +++++++++++++++++++++-
 2 files changed, 106 insertions(+), 2 deletions(-)

-- 
1.8.0

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