diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/regulator/pwm-regulator.txt | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/Documentation/devicetree/bindings/regulator/pwm-regulator.txt b/Documentation/devicetree/bindings/regulator/pwm-regulator.txt index 23b47720b2e4..ed936f0f34f2 100644 --- a/Documentation/devicetree/bindings/regulator/pwm-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/pwm-regulator.txt @@ -29,15 +29,14 @@ Required properties: - pwms: PWM specification (See: ../pwm/pwm.txt) -One of these must be provided: +Only required for Voltage Table Mode: - voltage-table: Voltage and Duty-Cycle table consisting of 2 cells First cell is voltage in microvolts (uV) Second cell is duty-cycle in percent (%) -- max-duty-cycle: Maximum Duty-Cycle value -- this will normally be - 255 (0xff) for an 8 bit PWM device - -If both are provided, the current default is voltage-table mode. +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. Any property defined as part of the core regulator binding can also be used. (See: ../regulator/regulator.txt) @@ -49,8 +48,6 @@ Continuous Voltage Example: regulator-min-microvolt = <1016000>; regulator-max-microvolt = <1114000>; regulator-name = "vdd_logic"; - - max-duty-cycle = <255>; /* 8bit PWM */ }; Voltage Table Example: |