PCI: imx6: Separate PERST# assertion from core reset functions

Browse source

The imx_pcie_assert_core_reset() and imx_pcie_deassert_core_reset()
functions are primarily intended to reset the RC controller itself, not
the remote PCIe endpoint devices. However, the PERST# GPIO control was
previously embedded within these functions, which conflates two distinct
reset operations.

Move the PERST# GPIO handling into a dedicated function
imx_pcie_assert_perst(). This makes the code more maintainable and
prepares for parsing the reset-gpios property according to the new
Root Port DT binding in subsequent patches.

No functional change is intended.

Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Richard Zhu <hongxing.zhu@nxp.com>
Link: https://patch.msgid.link/20260306030456.1032815-1-sherry.sun@nxp.com

...

This commit is contained in:

Sherry Sun 2026-03-06 11:04:56 +08:00 • committed by Manivannan Sadhasivam

parent 192b8a1bf8

commit 180ea823bb

1 changed files with 18 additions and 11 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

29

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

View file