diff options
| author | Richard Zhu <hongxing.zhu@nxp.com> | 2025-10-24 10:31:49 +0300 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2025-11-12 04:57:47 +0300 |
| commit | f4303fa035539e8a30920545b92d90251001fc83 (patch) | |
| tree | 8d2bb179e2b15cb0a603c8e1fc512325d984635b | |
| parent | 6fa16090efbca3a9ae74847e720f3c84ea18ce3d (diff) | |
| download | linux-f4303fa035539e8a30920545b92d90251001fc83.tar.xz | |
arm64: dts: imx8qm-mek: Add vpcie3v3aux regulator for PCIe M.2 connector
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.MX8QM 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>
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8qm-mek.dts | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8qm-mek.dts b/arch/arm64/boot/dts/freescale/imx8qm-mek.dts index 0bf2ee33618e..09b01e56ea00 100644 --- a/arch/arm64/boot/dts/freescale/imx8qm-mek.dts +++ b/arch/arm64/boot/dts/freescale/imx8qm-mek.dts @@ -784,6 +784,7 @@ pinctrl-names = "default"; reset-gpio = <&lsio_gpio4 29 GPIO_ACTIVE_LOW>; vpcie-supply = <®_pciea>; + vpcie3v3aux-supply = <®_pciea>; supports-clkreq; status = "okay"; }; |