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From: Peter Zijlstra <peterz@infradead.org>
To: dmitry.torokhov@gmail.com, linux-input@vger.kernel.org
Subject: Suspend/Resume (S3) issues with rmi_smbus
Date: Mon, 30 May 2022 10:48:06 +0200	[thread overview]
Message-ID: <YpSExunpPdgdjQCz@worktop.programming.kicks-ass.net> (raw)

Hi Dmitry,

My very aged x240 seems to require unloading and reloading of rmi_smbus
after every suspend cycle, otherwise the touchpad won't work again.

It seems to have started a few releases ago, but it used to be
occasional loss of touchpad, but now with 5.18 it is *every* suspend.

But the thing is, when I look at the git history of that file, it's not
been touched in 2 years or so, so I'm somewhat confused what's causing
this.

The relevant errors in dmesg are:

[26604.508618] rmi4_smbus 0-002c: failed to get SMBus version number!
[26604.508852] rmi4_physical rmi4-03: rmi_driver_reset_handler: Failed to read current IRQ mask.
[26604.509113] rmi4_f01 rmi4-03.fn01: Failed to restore normal operation: -6.
[26604.509117] rmi4_f01 rmi4-03.fn01: Resume failed with code -6.
[26604.509118] rmi4_physical rmi4-03: Failed to suspend functions: -6
[26604.509120] rmi4_smbus 0-002c: Failed to resume device: -6


Any clues where I should start poking? I'm not really familiar with this
part of the kernel.

             reply	other threads:[~2022-05-30  8:48 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-30  8:48 Peter Zijlstra [this message]
2022-05-30 19:15 ` Suspend/Resume (S3) issues with rmi_smbus Dmitry Torokhov
2022-05-31  8:54   ` Peter Zijlstra
2022-05-31 15:50     ` Dmitry Torokhov
2022-06-01 12:47       ` Jarkko Nikula
2022-06-01 17:02         ` Hugh Dickins
2022-06-01  6:40     ` Peter Zijlstra

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