PCI: imx6: Enable the Vaux supply if available

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[ Upstream commit c221cbf8dc ]

When the 3.3Vaux supply is present, fetch it at the probe time and keep it
enabled for the entire PCIe controller lifecycle so that the link can enter
L2 state and the devices can signal wakeup using either Beacon or WAKE#
mechanisms.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
[mani: reworded the subject, description and error message]
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20250820022328.2143374-1-hongxing.zhu@nxp.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Richard Zhu 2025-08-20 10:23:28 +08:00 • committed by Greg Kroah-Hartman

parent 73cd60aaba

commit 598e9fc58a

1 changed files with 4 additions and 0 deletions

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drivers/pci/controller/dwc/pci-imx6.c

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