admin/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2025-12-07 20:06:24 +00:00
Code Issues Packages Projects Releases Wiki Activity

arm64: dts: imx8qxp-mek: Add vpcie3v3aux regulator for PCIe M.2 connector

Browse Source 
Refer to PCI Express M.2 Specification r5.1 sec3.1.1 Power Sources and
Grounds.

PCI Express M.2 Socket 1 utilizes a 3.3 V power source. The voltage
source, 3.3 V, is expected to be available during the system’s
stand-by/suspend state to support wake event processing on the
communications card.

Add vpcie3v3aux regulator to let this 3.3 V power source always on for
PCIe M.2 Key E connector on i.MX8QXP MEK board.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Richard Zhu
2025-10-24 15:31:50 +08:00
committed by Shawn Guo
parent f4303fa035
commit b64620022d
1 changed files with 1 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
arch/arm64/boot/dts/freescale/imx8qxp-mek.dts
View File

@@ -640,6 +640,7 @@
pinctrl-names = "default";
reset-gpios = <&lsio_gpio4 0 GPIO_ACTIVE_LOW>;
vpcie-supply = <&reg_pcieb>;
vpcie3v3aux-supply = <&reg_pcieb>;
supports-clkreq;
status = "okay";
};