Hi I am writing to report a potential bug in the Linux kernel related to waking from suspend on a system(Laptop) with a Genesys Logic GL9755 SD Host Controller. Below are the details of the issue: Issue Description: After suspending the system, waking it up takes an extended amount of time, typically 1 to 2 minutes. The delay occurs consistently and is observed in the dmesg logs. System Information: - OS: Arch Linux x86_64 - Kernel: 6.7.5-arch1-1 and 6.7.6-arch1-1 - SD Host Controller: Genesys Logic GL9755 SD Host Controller (PCI ID: 17a0:9755) Observed Logs (dmesg): [ 642.483972] sdhci-pci 0000:2f:00.0: not ready 1023ms after resume; waiting [ 643.537370] sdhci-pci 0000:2f:00.0: not ready 2047ms after resume; waiting [ 645.724028] sdhci-pci 0000:2f:00.0: not ready 4095ms after resume; waiting [ 649.990655] sdhci-pci 0000:2f:00.0: not ready 8191ms after resume; waiting [ 658.310658] sdhci-pci 0000:2f:00.0: not ready 16383ms after resume; waiting [ 675.590673] sdhci-pci 0000:2f:00.0: not ready 32767ms after resume; waiting [ 709.723965] sdhci-pci 0000:2f:00.0: not ready 65535ms after resume; giving up [ 709.724183] sdhci-pci 0000:2f:00.0: Unable to change power state from D3cold to D0, device inaccessible [ 709.931501] mmc0: enable PCI MSI failed, error=-22 [ 710.031516] mmc0: Reset 0x1 never completed. [ 710.031519] mmc0: sdhci: ============ SDHCI REGISTER DUMP =========== [ 710.031522] mmc0: sdhci: Sys addr: 0xffffffff | Version: 0x0000ffff [ 710.031525] mmc0: sdhci: Blk size: 0x0000ffff | Blk cnt: 0x0000ffff [ 710.031527] mmc0: sdhci: Argument: 0xffffffff | Trn mode: 0x0000ffff [ 710.031529] mmc0: sdhci: Present: 0xffffffff | Host ctl: 0x000000ff [ 710.031532] mmc0: sdhci: Power: 0x000000ff | Blk gap: 0x000000ff [ 710.031534] mmc0: sdhci: Wake-up: 0x000000ff | Clock: 0x0000ffff [ 710.031536] mmc0: sdhci: Timeout: 0x000000ff | Int stat: 0xffffffff [ 710.031539] mmc0: sdhci: Int enab: 0xffffffff | Sig enab: 0xffffffff [ 710.031541] mmc0: sdhci: ACmd stat: 0x0000ffff | Slot int: 0x0000ffff [ 710.031543] mmc0: sdhci: Caps: 0xffffffff | Caps_1: 0xffffffff [ 710.031545] mmc0: sdhci: Cmd: 0x0000ffff | Max curr: 0xffffffff [ 710.031547] mmc0: sdhci: Resp[0]: 0xffffffff | Resp[1]: 0xffffffff [ 710.031549] mmc0: sdhci: Resp[2]: 0xffffffff | Resp[3]: 0xffffffff [ 710.031551] mmc0: sdhci: Host ctl2: 0x0000ffff [ 710.031554] mmc0: sdhci: ADMA Err: 0xffffffff | ADMA Ptr: 0xffffffffffffffff [ 710.031555] mmc0: sdhci: ============================================ [ 710.031558] sdhci-pci 0000:2f:00.0: PM: dpm_run_callback(): pci_pm_resume+0x0/0xf0 returns -22 [ 710.031567] sdhci-pci 0000:2f:00.0: PM: failed to resume async: error -22 ... [ 710.823719] random: crng reseeded on system resumption [ 710.829332] mmc0: 3.3V regulator output did not become stable [ 710.860354] PM: suspend exit [ 710.974677] mmc0: Controller never released inhibit bit(s). [ 710.974690] mmc0: sdhci: ============ SDHCI REGISTER DUMP =========== [ 710.974698] mmc0: sdhci: Sys addr: 0xffffffff | Version: 0x0000ffff [ 710.974709] mmc0: sdhci: Blk size: 0x0000ffff | Blk cnt: 0x0000ffff [ 710.974712] mmc0: sdhci: Argument: 0xffffffff | Trn mode: 0x0000ffff [ 710.974715] mmc0: sdhci: Present: 0xffffffff | Host ctl: 0x000000ff [ 710.974717] mmc0: sdhci: Power: 0x000000ff | Blk gap: 0x000000ff [ 710.974720] mmc0: sdhci: Wake-up: 0x000000ff | Clock: 0x0000ffff [ 710.974723] mmc0: sdhci: Timeout: 0x000000ff | Int stat: 0xffffffff [ 710.974725] mmc0: sdhci: Int enab: 0xffffffff | Sig enab: 0xffffffff [ 710.974728] mmc0: sdhci: ACmd stat: 0x0000ffff | Slot int: 0x0000ffff [ 710.974731] mmc0: sdhci: Caps: 0xffffffff | Caps_1: 0xffffffff [ 710.974733] mmc0: sdhci: Cmd: 0x0000ffff | Max curr: 0xffffffff [ 710.974736] mmc0: sdhci: Resp[0]: 0xffffffff | Resp[1]: 0xffffffff [ 710.974738] mmc0: sdhci: Resp[2]: 0xffffffff | Resp[3]: 0xffffffff [ 710.974740] mmc0: sdhci: Host ctl2: 0x0000ffff [ 710.974743] mmc0: sdhci: ADMA Err: 0xffffffff | ADMA Ptr: 0xffffffffffffffff [ 710.974744] mmc0: sdhci: ============================================ [ 711.074847] mmc0: Reset 0x2 never completed. ... Additional Information: - The delay persists even after attempting to blacklist the driver (sdhci_pci). Using modprobe or kernel parameters. - Secure boot and fast boot are disabled. - There are no additional sleep state or configuration options in the BIOS. - Output of `cat /sys/power/mem_sleep`: [s2idle] deep Hardware Details: 2f:00.0 SD Host controller [0805]: Genesys Logic, Inc GL9755 SD Host Controller [17a0:9755] (rev 01) Subsystem: ASUSTeK Computer Inc. GL9755 SD Host Controller [1043:202f] Kernel driver in use: sdhci-pci Kernel modules: sdhci_pci Please let me know if there is any additional information needed from my side to diagnose or resolve this issue. I am willing to provide any log files or assist in testing patches. Thank you for your attention to this matter. Sincerely, Mathias
