ARM: dts: socfpga: Add a 3.3V fixed regulator node

Without the 3.3V regulator node, the SDMMC driver will give these warnings:

dw_mmc ff704000.dwmmc0: No vmmc regulator found
dw_mmc ff704000.dwmmc0: No vqmmc regulator found

This patch adds the regulator node, and points the SD/MMC to the regulator.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
---
v3: Rename nodes to have schematic-name_regulator and remove "boot-on" and
    "always-on"
v2: Move the regulator nodes to their respective board dts file and
    correctly rename them to match the schematic

diff --git a/arch/arm/boot/dts/socfpga_arria5.dtsi b/arch/arm/boot/dts/socfpga_arria5.dtsi
index 03e8268..1907cc6 100644 (file)
--- a/arch/arm/boot/dts/socfpga_arria5.dtsi
+++ b/arch/arm/boot/dts/socfpga_arria5.dtsi
@@ -29,7 +29,7 @@
                        };
                };
 
-               dwmmc0@ff704000 {
+               mmc0: dwmmc0@ff704000 {
                        num-slots = <1>;
                        broken-cd;
                        bus-width = <4>;

diff --git a/arch/arm/boot/dts/socfpga_arria5_socdk.dts b/arch/arm/boot/dts/socfpga_arria5_socdk.dts
index 27d551c..ccaf417 100644 (file)
--- a/arch/arm/boot/dts/socfpga_arria5_socdk.dts
+++ b/arch/arm/boot/dts/socfpga_arria5_socdk.dts
@@ -37,6 +37,13 @@
                */
                ethernet0 = &gmac1;
        };
+
+       regulator_3_3v: 3-3-v-regulator {
+               compatible = "regulator-fixed";
+               regulator-name = "3.3V";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+       };
 };
 
 &gmac1 {
@@ -68,6 +75,11 @@
        };
 };
 
+&mmc0 {
+       vmmc-supply = <&regulator_3_3v>;
+       vqmmc-supply = <&regulator_3_3v>;
+};
+
 &usb1 {
        status = "okay";
 };

diff --git a/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts b/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts
index d91c943..258865d 100644 (file)
--- a/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts
+++ b/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts
@@ -37,6 +37,13 @@
                 */
                ethernet0 = &gmac1;
        };
+
+       regulator_3_3v: 3-3-v-regulator {
+               compatible = "regulator-fixed";
+               regulator-name = "3.3V";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+       };
 };
 
 &gmac1 {
@@ -74,6 +81,8 @@
 
 &mmc0 {
        cd-gpios = <&portb 18 0>;
+       vmmc-supply = <&regulator_3_3v>;
+       vqmmc-supply = <&regulator_3_3v>;
 };
 
 &usb1 {

diff --git a/arch/arm/boot/dts/socfpga_cyclone5_sockit.dts b/arch/arm/boot/dts/socfpga_cyclone5_sockit.dts
index d26f155..16ea6f5 100644 (file)
--- a/arch/arm/boot/dts/socfpga_cyclone5_sockit.dts
+++ b/arch/arm/boot/dts/socfpga_cyclone5_sockit.dts
@@ -37,6 +37,13 @@
                 */
                ethernet0 = &gmac1;
        };
+
+       regulator_3_3v: vcc3p3-regulator {
+               compatible = "regulator-fixed";
+               regulator-name = "VCC3P3";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+       };
 };
 
 &gmac1 {
@@ -53,6 +60,11 @@
        rxc-skew-ps = <2000>;
 };
 
+&mmc0 {
+       vmmc-supply = <&regulator_3_3v>;
+       vqmmc-supply = <&regulator_3_3v>;
+};
+
 &usb1 {
        status = "okay";
 };