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Commit 78827ec0 authored by Lucas Stach's avatar Lucas Stach Committed by Shawn Guo
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ARM: dts: imx6qdl-sabresd: add always on pcie regulator 



Everything in the PCI specification assumes devices to be
enumerable on startup. This is only possible if they have
power available.

A future improvement may allow this regulator to be switched
off for D3hot and D3cold power states, but there is a lot
of work to do the pcie host controller side for this to work.
To keep things simple always enable the regulator for now.

Signed-off-by: default avatarLucas Stach <l.stach@pengutronix.de>
Signed-off-by: default avatarShawn Guo <shawn.guo@freescale.com>
parent 10f34a13

arch/arm/boot/dts/imx6qdl-sabresd.dtsi

+19 −0
Original line number Diff line number Diff line
@@ -54,6 +54,19 @@ 
			gpio = <&gpio4 10 0>;

			enable-active-high;

		};



		reg_pcie: regulator@3 {

			compatible = "regulator-fixed";

			reg = <3>;

			pinctrl-names = "default";

			pinctrl-0 = <&pinctrl_pcie_reg>;

			regulator-name = "MPCIE_3V3";

			regulator-min-microvolt = <3300000>;

			regulator-max-microvolt = <3300000>;

			gpio = <&gpio3 19 0>;

			regulator-always-on;

			enable-active-high;

		};

	};



	gpio-keys {
@@ -400,6 +413,12 @@ 
			>;

		};



		pinctrl_pcie_reg: pciereggrp {

			fsl,pins = <

				MX6QDL_PAD_EIM_D19__GPIO3_IO19	0x1b0b0

			>;

		};



		pinctrl_pwm1: pwm1grp {

			fsl,pins = <

				MX6QDL_PAD_SD1_DAT3__PWM1_OUT		0x1b0b1