diff options
| author | Richard Zhu <hongxing.zhu@nxp.com> | 2025-10-24 10:31:48 +0300 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2025-11-12 04:57:44 +0300 |
| commit | 6fa16090efbca3a9ae74847e720f3c84ea18ce3d (patch) | |
| tree | 02dbc1a5052748066274634060476df6e5ec9b01 | |
| parent | caf08e2d494ec9790abe4f65130327c38eeb9d83 (diff) | |
| download | linux-6fa16090efbca3a9ae74847e720f3c84ea18ce3d.tar.xz | |
arm64: dts: imx8mq-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.MX8MQ 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/imx8mq-evk.dts | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts index 852992b915a3..d48f901487d4 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts @@ -398,6 +398,7 @@ <&clk IMX8MQ_CLK_PCIE2_PHY>, <&clk IMX8MQ_CLK_PCIE2_AUX>; vpcie-supply = <®_pcie1>; + vpcie3v3aux-supply = <®_pcie1>; vph-supply = <&vgen5_reg>; supports-clkreq; status = "okay"; |