ARM: tegra: Add missing HDMI +5V regulator

Commit fb50a116bbbc ("drm/tegra: hdmi - Add connector supply support")
introduced a new supply for HDMI connectors that is used to control the
voltage on the +5V pin. Not all boards have had the corresponding supply
added to their device tree files, causing the following warning message
during boot:

	[    0.859698] 54280000.hdmi supply hdmi not found, using dummy regulator

Add such a regulator to the Seaboard DTS to enable the driver to control
this voltage and get rid of the warning.

Reported-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/arch/arm/boot/dts/tegra20-seaboard.dts b/arch/arm/boot/dts/tegra20-seaboard.dts
index e2fed27122497b6f330904f43de95739b6cbe6cb..aea8994b35f27db74aff4f4c33fe0c6b77aabadd 100644 (file)
--- a/arch/arm/boot/dts/tegra20-seaboard.dts
+++ b/arch/arm/boot/dts/tegra20-seaboard.dts
@@ -31,6 +31,7 @@
 
                        vdd-supply = <&hdmi_vdd_reg>;
                        pll-supply = <&hdmi_pll_reg>;
+                       hdmi-supply = <&vdd_hdmi>;
 
                        nvidia,ddc-i2c-bus = <&hdmi_ddc>;
                        nvidia,hpd-gpio = <&gpio TEGRA_GPIO(N, 7)
@@ -893,6 +894,17 @@
                        gpio = <&gpio TEGRA_GPIO(W, 0) GPIO_ACTIVE_HIGH>;
                        enable-active-high;
                };
+
+               vdd_hdmi: regulator@6 {
+                       compatible = "regulator-fixed";
+                       reg = <6>;
+                       regulator-name = "VDDIO_HDMI";
+                       regulator-min-microvolt = <5000000>;
+                       regulator-max-microvolt = <5000000>;
+                       gpio = <&gpio TEGRA_GPIO(V, 5) GPIO_ACTIVE_HIGH>;
+                       enable-active-high;
+                       vin-supply = <&vdd_5v0_reg>;
+               };
        };
 
        sound {