MLK-13178-1 arm: imx6qp: turn on vgen3 power up pcie ext osc

On imx6qp sabresd rev b board, there is a standalone
external oscilator, used to provided the clks for
imx6qp pcie.
Add one regulator into pcie node, let the ext osc work.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Signed-off-by: Arulpandiyan Vadivel <arulpandiyan_vadivel@mentor.com>
Signed-off-by: Srikanth Krishnakar <Srikanth_Krishnakar@mentor.com>

diff --git a/arch/arm/boot/dts/imx6qp-sabresd.dts b/arch/arm/boot/dts/imx6qp-sabresd.dts
index aa8bc7e..ab27f02 100644 (file)
--- a/arch/arm/boot/dts/imx6qp-sabresd.dts
+++ b/arch/arm/boot/dts/imx6qp-sabresd.dts
@@ -119,6 +119,7 @@
 };
 
 &pcie {
+       pcie-bus-supply = <&vgen3_reg>; /* 1.8v pwr up pcie ext osc on revb */
        reset-gpio = <&gpio7 12 0>;
        status = "okay";
 };