lkml.org 
[lkml]   [2014]   [Feb]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH v2 12/14] Documentation: mfd/regulator: s2mps11: Document the "op_mode" bindings
    Date
    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 <k.kozlowski@samsung.com>
    Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
    Cc: Mark Brown <broonie@kernel.org>
    Cc: Liam Girdwood <lgirdwood@gmail.com>
    Cc: Tomasz Figa <t.figa@samsung.com>
    Cc: devicetree@vger.kernel.org
    Cc: Rob Herring <robh+dt@kernel.org>
    Cc: Pawel Moll <pawel.moll@arm.com>
    Cc: Mark Rutland <mark.rutland@arm.com>
    Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
    Cc: Kumar Gala <galak@codeaurora.org>
    ---
    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 */
    + };
    + };
    + };
    --
    1.7.9.5


    \
     
     \ /
      Last update: 2014-02-13 10:41    [W:2.457 / U:0.024 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site