PCI: imx6: Add 'skip_pwrctrl_off' flag support

Browse source

Use 'dw_pcie_rp->skip_pwrctrl_off' to avoid powering off devices during
suspend to preserve wakeup capability of the devices and also not to
power on the devices in the init path.

This allows controller power-off to be skipped when some devices (e.g.
M.2 Key E cards without auxiliary power) need to support PCIe L2 link
state and wake-up mechanisms.

Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260713023435.235765-3-sherry.sun@oss.nxp.com

...

This commit is contained in:

Sherry Sun 2026-07-13 10:34:33 +08:00 • committed by Manivannan Sadhasivam

parent 2c5768344f

commit f26b1c697a

1 changed files with 10 additions and 6 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

16

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

View file