[PATCH v2 12/14] Documentation: mfd/regulator: s2mps11: Document the "op_mode" bindings
From: Krzysztof Kozlowski <hidden>
Date: 2014-02-13 09:17:07
Also in:
linux-samsung-soc, lkml
Subsystem:
multifunction devices (mfd), open firmware and flattened device tree bindings, the rest · Maintainers:
Lee Jones, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Document the "op_mode" properties parsed from DTS by s2mps11 driver. S2MPS11/S2MPS14 regulators support different modes of operation: - Always off; - On/Off controlled by pin/GPIO (PWREN/LDOEN/EMMCEN); - Always on; This is very similar to S5M8767 regulator driver which also supports opmodes (although S5M8767 have also low-power mode). Signed-off-by: Krzysztof Kozlowski <redacted> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Cc: Mark Brown <broonie@kernel.org> Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: Tomasz Figa <redacted> Cc: devicetree@vger.kernel.org Cc: Rob Herring <robh+dt@kernel.org> Cc: Pawel Moll <redacted> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Ian Campbell <redacted> Cc: Kumar Gala <redacted> --- Documentation/devicetree/bindings/mfd/s2mps11.txt | 46 +++++++++++++++++++++ 1 file changed, 46 insertions(+)
diff --git a/Documentation/devicetree/bindings/mfd/s2mps11.txt b/Documentation/devicetree/bindings/mfd/s2mps11.txt
index f69bec294f02..ffad6bfe2ebf 100644
--- a/Documentation/devicetree/bindings/mfd/s2mps11.txt
+++ b/Documentation/devicetree/bindings/mfd/s2mps11.txt@@ -54,6 +54,15 @@ BUCK[3, 4], and BUCK[7, 8, 10] The regulator constraints inside the regulator nodes use the standard regulator bindings which are documented elsewhere. +On S2MPS14 chipset the driver additionally supports "op_mode" properties for +each regulator. + - op_mode: describes the different operating modes of the regulators with + power mode change in SOC. The different possible values are, + 0 - always off mode + 1 - on in normal mode + 3 - suspend mode + (NOTE: value of 2 is reserved) + The following are the names of the regulators that the s2mps11 pmic block supports. Note: The 'n' in LDOn and BUCKn represents the LDO or BUCK number as per the datasheet of s2mps11.
@@ -112,3 +121,40 @@ Example: }; }; }; + + s2mps14_pmic@66 { + compatible = "samsung,s2mps14-pmic"; + reg = <0x66>; + + s2m_osc: clocks { + compatible = "samsung,s2mps14-clk"; + #clock-cells = 1; + clock-output-names = "xx", "", "zz"; + }; + + regulators { + ldo1_reg: LDO1 { + regulator-name = "VAP_ALIVE_1.0V"; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1000000>; + regulator-always-on; + op_mode = <1>; /* Normal Mode */ + }; + + ldo2_reg: LDO2 { + regulator-name = "VAP_M1_1.2V"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1200000>; + regulator-always-on; + op_mode = <1>; /* Normal Mode */ + }; + + buck1_reg: BUCK1 { + regulator-name = "VAP_MIF_1.0V"; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1000000>; + regulator-always-on; + op_mode = <3>; /* Standby Mode */ + }; + }; + };
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1.7.9.5