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ARM: tegra: apalis/colibri t30: fix on-module 5v0 supplies

PATCH New Stephen Warren 2 participants 2 messages Aug 22, 2014 – Aug 24, 2014

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Device tree bindings Tegra architecture support
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Stephen Warren

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PATCH 1/1 ARM: tegra: apalis/colibri t30: fix on-module 5v0 supplies

From: Marcel Ziswiler <[email protected]>

Working on Gigabit/PCIe support in U-Boot for Apalis T30 I realised that the current device tree source includes for our modules only happen to work due to referencing the on-carrier 5v0 supply from USB which is not at all available on-module. The modules actually contain TPS60150 charge pumps to generate the PMIC required 5 volts from the one and only 3.3 volt module supply. This patch fixes this.

(Note: When back-porting this to v3.16 stable releases, simply drop the change to tegra30-apalis.dtsi; that file was added in v3.17)

Cc <[email protected]> #v3.16+
Signed-off-by Marcel Ziswiler <[email protected]>
Signed-off-by Stephen Warren <[email protected]>
---
 arch/arm/boot/dts/tegra30-apalis.dtsi  | 11 ++++++++++-
 arch/arm/boot/dts/tegra30-colibri.dtsi | 11 ++++++++++-
 2 files changed, 20 insertions(+), 2 deletions(-)
arch/arm/boot/dts/tegra30-apalis.dtsi +10 -1
index 8adaa7871dd3..a5446cba9804 100644
@@ -423,7 +423,7 @@
 			vcc4-supply = <&sys_3v3_reg>;
 			vcc5-supply = <&sys_3v3_reg>;
 			vcc6-supply = <&vio_reg>;
-			vcc7-supply = <&sys_5v0_reg>;
+			vcc7-supply = <&charge_pump_5v0_reg>;
 			vccio-supply = <&sys_3v3_reg>;
 
 			regulators {

@@ -674,5 +674,14 @@
 			regulator-max-microvolt = <3300000>;
 			regulator-always-on;
 		};
+
+		charge_pump_5v0_reg: regulator at 101 {
+			compatible = "regulator-fixed";
+			reg = <101>;
+			regulator-name = "5v0";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			regulator-always-on;
+		};
 	};
 };
arch/arm/boot/dts/tegra30-colibri.dtsi +10 -1
index bf16f8e65627..c4ed1bec4d92 100644
@@ -201,7 +201,7 @@
 			vcc4-supply = <&sys_3v3_reg>;
 			vcc5-supply = <&sys_3v3_reg>;
 			vcc6-supply = <&vio_reg>;
-			vcc7-supply = <&sys_5v0_reg>;
+			vcc7-supply = <&charge_pump_5v0_reg>;
 			vccio-supply = <&sys_3v3_reg>;
 
 			regulators {

@@ -373,5 +373,14 @@
 			regulator-max-microvolt = <3300000>;
 			regulator-always-on;
 		};
+
+		charge_pump_5v0_reg: regulator at 101 {
+			compatible = "regulator-fixed";
+			reg = <101>;
+			regulator-name = "5v0";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			regulator-always-on;
+		};
 	};
 };
Signature · 1 line
1.9.1
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#1 lore raw

PATCH 1/1 ARM: tegra: apalis/colibri t30: fix on-module 5v0 supplies

Quoted 9 lines · Stephen Warren

From: Marcel Ziswiler <[email protected]>

Working on Gigabit/PCIe support in U-Boot for Apalis T30 I realised that the current device tree source includes for our modules only happen to work due to referencing the on-carrier 5v0 supply from USB which is not at all available on-module. The modules actually contain TPS60150 charge pumps to generate the PMIC required 5 volts from the one and only 3.3 volt module supply. This patch fixes this.

Quoted 6 lines

(Note: When back-porting this to v3.16 stable releases, simply drop the change to tegra30-apalis.dtsi; that file was added in v3.17)

Cc <[email protected]> #v3.16+
Signed-off-by Marcel Ziswiler <[email protected]>
Signed-off-by Stephen Warren <[email protected]>

Applied, thanks.

-Olof