Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2188822
Upstream Status: cdce67099117ece371582f706c6eff7d3a65326d
commit cdce67099117ece371582f706c6eff7d3a65326d
Author: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Date: Fri Mar 10 21:34:58 2023 +0900
PCI: dwc: Fix PORT_LINK_CONTROL update when CDM check enabled
If CDM_CHECK is enabled (by the DT "snps,enable-cdm-check" property), 'val'
is overwritten by PCIE_PL_CHK_REG_CONTROL_STATUS initialization. Commit
ec7b952f453c ("PCI: dwc: Always enable CDM check if "snps,enable-cdm-check"
exists") did not account for further usage of 'val', so we wrote improper
values to PCIE_PORT_LINK_CONTROL when the CDM check is enabled.
Move the PCIE_PORT_LINK_CONTROL update to be completely after the
PCIE_PL_CHK_REG_CONTROL_STATUS register initialization.
[bhelgaas: commit log adapted from Serge's version]
Fixes: ec7b952f453c ("PCI: dwc: Always enable CDM check if "snps,enable-cdm-check" exists")
Link: https://lore.kernel.org/r/20230310123510.675685-2-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Myron Stowe <mstowe@redhat.com>
267eda472c