Re: [regression] Resume broken on T14s Gen1 (AMD) due to "Input: psmouse - add delay when deactivating for SMBus mode"

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On 27.09.23 19:23, Thorsten Leemhuis wrote:
> On 27.09.23 17:55, Jeffery Miller wrote:
>> On Wed, Sep 27, 2023 at 10:43 AM Jeffery Miller
>> <jefferymiller@xxxxxxxxxx> wrote:
>>> On Wed, Sep 27, 2023 at 3:54 AM Thorsten Leemhuis <linux@xxxxxxxxxxxxx> wrote:
>>>>
>>>> My dmesg from a kernel with the revert:
>>>> https://www.leemhuis.info/files/misc/dmesg
> 
> Thx for looking into this!
> 
>>> In this dmesg output it shows that this is an elantech smbus device:
>>> ```
>>> [    4.260415] psmouse serio1: elantech: assuming hardware version 4 (with firmware version 0x7f3001)
>>> [    4.279297] psmouse serio1: elantech: Synaptics capabilities query result 0x90, 0x18, 0x0f.
>>> [    4.292788] psmouse serio1: elantech: Elan sample query result 00, 80, c9
>>> [    4.319184] psmouse serio1: elantech: Elan ic body: 0x10, current fw version: 0x3
>>> ...
>>> [    4.346951] psmouse serio1: elantech: Trying to set up SMBus access
>>> [    4.346986] psmouse serio1: elantech: SMbus companion is not ready yet
>>> [    4.369993] input: ETPS/2 Elantech TrackPoint as /devices/platform/i8042/serio1/input/input7
>>> [    4.376200] systemd[1]: bpf-lsm: LSM BPF program attached
>>> [    4.385192] input: ETPS/2 Elantech Touchpad as /devices/platform/i8042/serio1/input/input5
>>> ```
>>> The change in 92e24e0e57f72e shouldn't affect the elantouch device as  elantech_setup_smbus
>>> initializes `psmouse_smbus_init` with need_deactivate = false.
> 
> Hmmm. Wondering if I should warm up the compiler again to recheck my
> result one more time[1].

Just did that. Ran "make clean" and compiled mainline as of now
(633b47cb009d) and the machine does never resume from s2idle; then I
reverted 92e24e0e57f7 and compiled again (for completeness: without
running "make clean" beforehand) and with that kernel s2idle resume
works perfectly fine.

Wondering if I or the compiler is doing something stupid here -- or if
we missed some small but important detail somewhere.

Ciao, Thorsten

>>> Did you store dmesg logs from boot without the applied patch?
>> I intended to ask if you have logs from a boot without 92e24e0e57f72e reverted.
> 
> https://www.leemhuis.info/files/misc/dmesg-6.6-rc3-vanilla
> 
>>> If the delay was being applied the timestamps should show the 30ms delay between
>>> `psmouse serio1: elantech: Trying to set up SMBus access`
>>> and
>>> `psmouse serio1: elantech: SMbus companion is not ready yet`
> 
> Unless I missed something there is not difference. :-/
> 
> Ciao, Thorsten
> 
> [1] FWIW, this is my bisect log
> 
> """
>> git bisect start
>> # status: waiting for both good and bad commits
>> # bad: [6465e260f48790807eef06b583b38ca9789b6072] Linux 6.6-rc3
>> git bisect bad 6465e260f48790807eef06b583b38ca9789b6072
>> # status: waiting for good commit(s), bad commit known
>> # good: [2dde18cd1d8fac735875f2e4987f11817cc0bc2c] Linux 6.5
>> git bisect good 2dde18cd1d8fac735875f2e4987f11817cc0bc2c
>> # good: [4fb0dacb78c6a041bbd38ddd998df806af5c2c69] Merge tag 'sound-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
>> git bisect good 4fb0dacb78c6a041bbd38ddd998df806af5c2c69
>> # good: [307d59039fb26212a84a9aa6a134a7d2bdea34ca] Merge tag 'media/v6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
>> git bisect good 307d59039fb26212a84a9aa6a134a7d2bdea34ca
>> # bad: [4a0fc73da97efd23a383ca839e6fe86410268f6b] Merge tag 's390-6.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
>> git bisect bad 4a0fc73da97efd23a383ca839e6fe86410268f6b
>> # good: [e4f1b8202fb59c56a3de7642d50326923670513f] Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
>> git bisect good e4f1b8202fb59c56a3de7642d50326923670513f
>> # good: [5eea5820c7340d39e56e169e1b87199391105f6b] Merge tag 'mm-stable-2023-09-04-14-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
>> git bisect good 5eea5820c7340d39e56e169e1b87199391105f6b
>> # good: [65d6e954e37872fd9afb5ef3fc0481bb3c2f20f4] Merge tag 'gfs2-v6.5-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
>> git bisect good 65d6e954e37872fd9afb5ef3fc0481bb3c2f20f4
>> # bad: [744a759492b5c57ff24a6e8aabe47b17ad8ee964] Merge tag 'input-for-v6.6-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
>> git bisect bad 744a759492b5c57ff24a6e8aabe47b17ad8ee964
>> # good: [dbce1a7d5dce7318d8465b1e0d052ef1d2202237] Input: Explicitly include correct DT includes
>> git bisect good dbce1a7d5dce7318d8465b1e0d052ef1d2202237
>> # good: [29057cc5bddc785ea0a11534d7ad2546fa0872d3] Merge tag 'linux-watchdog-6.6-rc1' of git://www.linux-watchdog.org/linux-watchdog
>> git bisect good 29057cc5bddc785ea0a11534d7ad2546fa0872d3
>> # bad: [3e4bb047b23375a34dbf5885709ac3729d9cfb22] Input: qt2160 - convert to use devm_* api
>> git bisect bad 3e4bb047b23375a34dbf5885709ac3729d9cfb22
>> # good: [e175eae16c1bf92062f1f431a95f476a61a77c48] Input: mcs-touchkey - convert to use devm_* api
>> git bisect good e175eae16c1bf92062f1f431a95f476a61a77c48
>> # bad: [92e24e0e57f72e06c2df87116557331fd2d4dda2] Input: psmouse - add delay when deactivating for SMBus mode
>> git bisect bad 92e24e0e57f72e06c2df87116557331fd2d4dda2
>> # good: [8362bf82fb5441613aac7c6c9dbb6b83def6ad3b] Input: mcs-touchkey - fix uninitialized use of error in mcs_touchkey_probe()
>> git bisect good 8362bf82fb5441613aac7c6c9dbb6b83def6ad3b
>> # first bad commit: [92e24e0e57f72e06c2df87116557331fd2d4dda2] Input: psmouse - add delay when deactivating for SMBus mode
> """
> 
> 



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