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authorLucas Stach <l.stach@pengutronix.de>2014-07-23 19:29:11 +0200
committerShawn Guo <shawn.guo@freescale.com>2014-09-16 10:25:49 +0800
commit78827ec071ef4971a89e1da6349f2b73539639c3 (patch)
treeeea1a24741926a11e99921e83c62467692a82ff4
parent10f34a1341e374f372e3ff82f674e2475b262f9b (diff)
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: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
-rw-r--r--arch/arm/boot/dts/imx6qdl-sabresd.dtsi19
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
index ec43dde78525..07fb3020e1bf 100644
--- a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
@@ -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