[akakum-qualcomm]

FROMLIST: clk: qcom: gcc-qcs8300: clk: qcom: gcc-qcs8300: Fix suspend/resume issues for USB and PCIe

The USB subsystem does not expect to lose its state on suspend:

  xhci-hcd xhci-hcd.1.auto: xHC error in resume, USBSTS 0x401, Reinit
  usb usb1: root hub lost power or was reset

To maintain state during suspend, the relevant GDSCs need to stay in
retention mode, like they do on other similar SoCs. Change the mode to
PWRSTS_RET_ON to fix.

Fixes: 95eeb2ffce73 ("clk: qcom: Add support for Global Clock Controller on QCS8300")
Link: https://lore.kernel.org/all/20260629-monza-suspend-v1-2-b601d8a2f2f8@oss.qualcomm.com/
Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Signed-off-by: Akash Kumar <akakum@qti.qualcomm.com>

CR-Fixed: 4710067
CR-Fixed: 4645099

[Tingwei Zhang (quic-tingweiz)]

This is a WA change. Please provide approved JIRA. Has this been merged on qcom-next? Has it been verified on Ubuntu Kernel?

[pareekpa]

This is a WA change. Please provide approved JIRA. Has this been merged on qcom-next? Has it been verified on Ubuntu Kernel?

I've checked with the Image team. The corresponding PR is older than JIRA exception work flow was established.
QLI 2.0 PR: qualcomm-linux/kernel#281

[Tingwei Zhang (quic-tingweiz)]

WA is supposed to be temporary, and it should be replaced by formal fix. If the WA is there for so long, I doubt we can still carry this WA. Please seek the approval from JIRA.

[akakum-qualcomm]

WA is supposed to be temporary, and it should be replaced by formal fix. If the WA is there for so long, I doubt we can still carry this WA. Please seek the approval from JIRA.

this is approved change in upstteam and merged QLI2.0
so changed tag to FROMLIST.

lore link: https://lore.kernel.org/all/20260629-monza-suspend-v1-0-b601d8a2f2f8@oss.qualcomm.com/
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/clk/qcom/gcc-qcs8300.c?h=v7.3

[akakum-qualcomm]

validated No issue seen on Rb4 after suspend resume.
Please help merge change.