regulator: pwm-regulator: Remove obsoleted property

In "[3d7ef30] regulator: pwm-regulator: Simplify voltage to duty-cycle
call" we stopped using max_duty_cycle, so we can retire it from device
data and DT.

There is no need to deprecate this property, as it hasn't hit Mainline
yet.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

2 files changed, 4 insertions, 16 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:
diff --git a/drivers/regulator/pwm-regulator.c b/drivers/regulator/pwm-regulator.c
index cb482089050b..d92e66772ec0 100644
--- a/drivers/regulator/pwm-regulator.c
+++ b/drivers/regulator/pwm-regulator.c
@@ -30,7 +30,6 @@ struct pwm_regulator_data {
         int state;
 
         /* Continuous voltage */
-        u32 max_duty_cycle;
         int volt_uV;
 };
 
@@ -201,14 +200,6 @@ static int pwm_regulator_init_continuous(struct platform_device *pdev,
                                          struct pwm_regulator_data *drvdata)
 {
         struct device_node *np = pdev->dev.of_node;
-        int ret;
-
-        ret = of_property_read_u32(np, "max-duty-cycle",
-                                   &drvdata->max_duty_cycle);
-        if (ret) {
-                dev_err(&pdev->dev, "Failed to read \"pwm-max-value\"\n");
-                return ret;
-        }
 
         pwm_regulator_desc.ops = &pwm_regulator_voltage_continuous_ops;
         pwm_regulator_desc.continuous_voltage_range = true;