Add properties for regmap to the regulator-fixed device tree binding:
* Reference the regmap phandle
* Specify the enable offset and enable mask
* Reuse enable-active-high for regmap

This is required for Broadcom BCM63xx SoCs that enable power to
individual peripherals by clearing a bit in the miscIddqCtrl register.

Signed-off-by: Simon Arlott <[email protected]>
---
 .../bindings/regulator/fixed-regulator.txt          | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/regulator/fixed-regulator.txt 
b/Documentation/devicetree/bindings/regulator/fixed-regulator.txt
index 4fae41d..b499a65 100644
--- a/Documentation/devicetree/bindings/regulator/fixed-regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/fixed-regulator.txt
@@ -5,13 +5,18 @@ Required properties:
 
 Optional properties:
 - gpio: gpio to use for enable control
+- regmap: regmap phandle to use for enable control
+- regmap-offset: register offset when using regmap for enable control
+- regmap-mask: register enable mask when using regmap for enable control
 - startup-delay-us: startup time in microseconds
-- enable-active-high: Polarity of GPIO is Active high
+- enable-active-high: Polarity of GPIO/regmap is Active high
 If this property is missing, the default assumed is Active low.
 - gpio-open-drain: GPIO is open drain type.
   If this property is missing then default assumption is false.
 -vin-supply: Input supply name.
 
+Only one of gpio/regmap should be specified.
+
 Any property defined as part of the core regulator
 binding, defined in regulator.txt, can also be used.
 However a fixed voltage regulator is expected to have the
@@ -32,3 +37,17 @@ Example:
                gpio-open-drain;
                vin-supply = <&parent_reg>;
        };
+
+       xyz: fixedregulator@1 {
+               compatible = "regulator-fixed";
+               regulator-name = "fixed-supply";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <1800000>;
+               regmap = <&syscon>;
+               regmap-offset = <0x4>;
+               regmap-mask = <0x200>;
+               startup-delay-us = <70000>;
+               enable-active-high;
+               regulator-boot-on;
+               vin-supply = <&parent_reg>;
+       };
-- 
2.1.4

-- 
Simon Arlott
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to