ENGR00299939-1 ARM: dts: imx6sl:Add dummy LDO2p5 regulator to support vbus wakeup

LDO2p5 cannot be disabled in low power idle mode when the USB driver
enables VBUS wakeup. To identify when LDO2p5 can be disabled add a dummy
regulator that the USB driver will enable when VBUS wakeup is required.
This patch adds the dummy regulator to the dts files.

Signed-off-by: Ranjani Vaidyanathan <Ranjani.Vaidyanathan@freescale.com>

diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi
index 08da767635bb6bf6fbdf4724faa73bd0bc62a217..1e4a2e72efb6fe5ed1e2938f49246132492eca59 100644 (file)
--- a/arch/arm/boot/dts/imx6sl.dtsi
+++ b/arch/arm/boot/dts/imx6sl.dtsi
@@ -89,6 +89,10 @@
                compatible = "fsl,imx6-dummy-pureg"; /* only used in ldo-bypass */
        };
 
+       reg_vbus_wakeup: usb_vbus_wakeup {
+               compatible = "fsl,imx6-dummy-ldo2p5";
+       };
+
        mxs_viim {
                compatible = "fsl,mxs_viim";
                reg = <0x02098000 0x1000>, /* GPT base */
@@ -738,6 +742,7 @@
                                compatible = "fsl,imx6sl-usbmisc", "fsl,imx6q-usbmisc";
                                reg = <0x02184800 0x200>;
                                clocks = <&clks IMX6SL_CLK_USBOH3>;
+                               vbus-wakeup-supply = <&reg_vbus_wakeup>;
                        };
 
                        fec: ethernet@02188000 {