Merge tag 'media/v4.8-6' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...

[cascardo/linux.git] / Documentation / devicetree / bindings / regulator / pwm-regulator.txt

diff --git a/Documentation/devicetree/bindings/regulator/pwm-regulator.txt b/Documentation/devicetree/bindings/regulator/pwm-regulator.txt
index dd6f59c..3aeba9f 100644 (file)
--- a/Documentation/devicetree/bindings/regulator/pwm-regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/pwm-regulator.txt
@@ -34,6 +34,18 @@ Only required for Voltage Table Mode:
                            First cell is voltage in microvolts (uV)
                            Second cell is duty-cycle in percent (%)
 
+Optional properties for Continuous mode:
+- pwm-dutycycle-unit:  Integer value encoding the duty cycle unit. If not
+                       defined, <100> is assumed, meaning that
+                       pwm-dutycycle-range contains values expressed in
+                       percent.
+
+- pwm-dutycycle-range: Should contain 2 entries. The first entry is encoding
+                       the dutycycle for regulator-min-microvolt and the
+                       second one the dutycycle for regulator-max-microvolt.
+                       Duty cycle values are expressed in pwm-dutycycle-unit.
+                       If not defined, <0 100> is assumed.
+
 NB: To be clear, if voltage-table is provided, then the device will be used
 in Voltage Table Mode.  If no voltage-table is provided, then the device will
 be used in Continuous Voltage Mode.
@@ -53,6 +65,13 @@ Continuous Voltage With Enable GPIO Example:
                regulator-min-microvolt = <1016000>;
                regulator-max-microvolt = <1114000>;
                regulator-name = "vdd_logic";
+               /* unit == per-mille */
+               pwm-dutycycle-unit = <1000>;
+               /*
+                * Inverted PWM logic, and the duty cycle range is limited
+                * to 30%-70%.
+                */
+               pwm-dutycycle-range <700 300>; /* */
        };
 
 Voltage Table Example: