diff options
| author | Richard Zhu <hongxing.zhu@nxp.com> | 2025-10-24 10:31:47 +0300 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2025-11-12 04:57:41 +0300 |
| commit | caf08e2d494ec9790abe4f65130327c38eeb9d83 (patch) | |
| tree | dcf3d03716d4f028e6113a7d25ba366929edce9c | |
| parent | 55a79e599aa8fef6b2b268fb9357722d080b9730 (diff) | |
| download | linux-caf08e2d494ec9790abe4f65130327c38eeb9d83.tar.xz | |
arm64: dts: imx8mp-evk: 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.MX8MP EVK 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/imx8mp-evk.dts | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts index 523bf4aeff31..f0762ba60c8c 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts @@ -710,6 +710,7 @@ pinctrl-0 = <&pinctrl_pcie0>; reset-gpio = <&gpio2 7 GPIO_ACTIVE_LOW>; vpcie-supply = <®_pcie0>; + vpcie3v3aux-supply = <®_pcie0>; supports-clkreq; status = "okay"; }; |