[PATCH V6 6/9] ARM: mxs: Provide regulator to pwm-backlight

[Andrew Chew]

The pwm-backlight driver now takes a mandatory regulator that is gotten
during driver probe.  Initialize a dummy regulator to satisfy this
requirement.

Signed-off-by: Andrew Chew <ac...@nvidia.com>
Acked-by: Alexandre Courbot <acour...@nvidia.com>
Acked-by: Shawn Guo <shawn....@linaro.org>
---
 arch/arm/boot/dts/imx23-evk.dts      |  6 ++++++
 arch/arm/boot/dts/imx28-apf28dev.dts |  6 ++++++
 arch/arm/boot/dts/imx28-cfa10049.dts |  6 ++++++
 arch/arm/boot/dts/imx28-evk.dts      |  6 ++++++
 arch/arm/boot/dts/imx28-tx28.dts     | 11 +++++++++++
 5 files changed, 35 insertions(+)

diff --git a/arch/arm/boot/dts/imx23-evk.dts b/arch/arm/boot/dts/imx23-evk.dts
index 035c13f..ce5048e 100644
--- a/arch/arm/boot/dts/imx23-evk.dts
+++ b/arch/arm/boot/dts/imx23-evk.dts
@@ -95,6 +95,11 @@
                        regulator-max-microvolt = <3300000>;
                        gpio = <&gpio1 29 0>;
                };
+
+               reg_backlight_power: fixed-regulator {
+                       compatible = "regulator-fixed";
+                       regulator-name = "backlight-power";
+               };
        };
 
        backlight {
@@ -102,5 +107,6 @@
                pwms = <&pwm 2 5000000>;
                brightness-levels = <0 4 8 16 32 64 128 255>;
                default-brightness-level = <6>;
+               power-supply = <&reg_backlight_power>;
        };
 };
diff --git a/arch/arm/boot/dts/imx28-apf28dev.dts 
b/arch/arm/boot/dts/imx28-apf28dev.dts
index 6d8865b..e354dc5 100644
--- a/arch/arm/boot/dts/imx28-apf28dev.dts
+++ b/arch/arm/boot/dts/imx28-apf28dev.dts
@@ -132,6 +132,11 @@
                        regulator-max-microvolt = <5000000>;
                        gpio = <&gpio1 23 1>;
                };
+
+               reg_backlight_power: fixed-regulator {
+                       compatible = "regulator-fixed";
+                       regulator-name = "backlight-power";
+               };
        };
 
        leds {
@@ -150,5 +155,6 @@
                pwms = <&pwm 3 191000>;
                brightness-levels = <0 4 8 16 32 64 128 255>;
                default-brightness-level = <6>;
+               power-supply = <&reg_backlight_power>;
        };
 };
diff --git a/arch/arm/boot/dts/imx28-cfa10049.dts 
b/arch/arm/boot/dts/imx28-cfa10049.dts
index a0d3e9f..a6eddd6 100644
--- a/arch/arm/boot/dts/imx28-cfa10049.dts
+++ b/arch/arm/boot/dts/imx28-cfa10049.dts
@@ -205,6 +205,11 @@
                        regulator-max-microvolt = <5000000>;
                        gpio = <&gpio0 7 1>;
                };
+
+               reg_backlight_power: fixed-regulator {
+                       compatible = "regulator-fixed";
+                       regulator-name = "backlight-power";
+               };
        };
 
        ahb@80080000 {
@@ -304,5 +309,6 @@
                pwms = <&pwm 3 5000000>;
                brightness-levels = <0 4 8 16 32 64 128 255>;
                default-brightness-level = <6>;
+               power-supply = <&reg_backlight_power>;
        };
 };
diff --git a/arch/arm/boot/dts/imx28-evk.dts b/arch/arm/boot/dts/imx28-evk.dts
index 2da316e..7ba7216 100644
--- a/arch/arm/boot/dts/imx28-evk.dts
+++ b/arch/arm/boot/dts/imx28-evk.dts
@@ -285,6 +285,11 @@
                        gpio = <&gpio3 8 0>;
                        enable-active-high;
                };
+
+               reg_backlight_power: fixed-regulator {
+                       compatible = "regulator-fixed";
+                       regulator-name = "backlight-power";
+               };
        };
 
        sound {
@@ -312,5 +317,6 @@
                pwms = <&pwm 2 5000000>;
                brightness-levels = <0 4 8 16 32 64 128 255>;
                default-brightness-level = <6>;
+               power-supply = <&reg_backlight_power>;
        };
 };
diff --git a/arch/arm/boot/dts/imx28-tx28.dts b/arch/arm/boot/dts/imx28-tx28.dts
index 37be532..7fa5a44 100644
--- a/arch/arm/boot/dts/imx28-tx28.dts
+++ b/arch/arm/boot/dts/imx28-tx28.dts
@@ -97,6 +97,16 @@
                };
        };
 
+       regulators {
+               compatible = "simple-bus";
+
+               reg_backlight_power: fixed-regulator {
+                       compatible = "regulator-fixed";
+                       regulator-name = "backlight-power";
+               };
+       };
+
+
        leds {
                compatible = "gpio-leds";
 
@@ -112,5 +122,6 @@
                pwms = <&pwm 0 5000000>;
                brightness-levels = <0 4 8 16 32 64 128 255>;
                default-brightness-level = <6>;
+               power-supply = <&reg_backlight_power>;
        };
 };
-- 
1.8.1.5

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