linux-kernel - [PATCH v3 11/12] ARM: tegra: trimslice: Initialize PCIe from DT

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Message-Id: <1365000318-28256-12-git-send-email-thierry.reding@avionic-design.de>
Date:	Wed,  3 Apr 2013 16:45:17 +0200
From:	Thierry Reding <thierry.reding@...onic-design.de>
To:	Grant Likely <grant.likely@...retlab.ca>,
	Rob Herring <rob.herring@...xeda.com>,
	Stephen Warren <swarren@...dotorg.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>
Cc:	Russell King <linux@....linux.org.uk>,
	Andrew Murray <andrew.murray@....com>,
	Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
	Arnd Bergmann <arnd@...db.de>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	devicetree-discuss@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-tegra@...r.kernel.org,
	linux-pci@...r.kernel.org
Subject: [PATCH v3 11/12] ARM: tegra: trimslice: Initialize PCIe from DT

With the device tree support in place, probe the PCIe controller from
the device tree and remove the corresponding workaround in the board
file.

Signed-off-by: Thierry Reding <thierry.reding@...onic-design.de>
---
Changes in v2:
- add missing dummy regulator nodes by Stephen Warren
- rename port 0 DT node and disable unused port 1

 arch/arm/boot/dts/tegra20-trimslice.dts | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/arch/arm/boot/dts/tegra20-trimslice.dts b/arch/arm/boot/dts/tegra20-trimslice.dts
index 955bf49..dc081c3 100644
--- a/arch/arm/boot/dts/tegra20-trimslice.dts
+++ b/arch/arm/boot/dts/tegra20-trimslice.dts
@@ -300,6 +300,16 @@
 		};
 	};
 
+	pcie-controller {
+		status = "okay";
+		pex-clk-supply = <&pci_clk_reg>;
+		vdd-supply = <&pci_vdd_reg>;
+
+		pci@1,0 {
+			status = "okay";
+		};
+	};
+
 	usb@...00000 {
 		status = "okay";
 		nvidia,vbus-gpio = <&gpio 170 0>; /* gpio PV2 */
@@ -357,6 +367,24 @@
 			regulator-max-microvolt = <1800000>;
 			regulator-always-on;
 		};
+
+		pci_clk_reg: regulator@2 {
+			compatible = "regulator-fixed";
+			reg = <2>;
+			regulator-name = "pci_clk";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+		};
+
+		pci_vdd_reg: regulator@3 {
+			compatible = "regulator-fixed";
+			reg = <3>;
+			regulator-name = "pci_vdd";
+			regulator-min-microvolt = <1050000>;
+			regulator-max-microvolt = <1050000>;
+			regulator-always-on;
+		};
 	};
 
 	sound {
-- 
1.8.2

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