| Message ID | 20220429211418.4546-2-lyude@redhat.com (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Headers | show |
| Series | Fix detection of 2nd fan on X1C9 | expand |
Hi Lyude On 4/29/22 17:14, Lyude Paul wrote: > The new method of probing dual fan support introduced in: > > bf779aaf56ea ("platform/x86: thinkpad_acpi: Add dual fan probe") > > While this commit says this works on the X1 Carbon 9th Gen, it actually > just results in hiding the second fan on my local machine. Additionally, > I'm fairly sure this machine powers on quite often without either of the > two fans spinning. > > So let's fix this by adding back the dual fan quirk for the X1 Carbon 9th > Gen. > > Signed-off-by: Lyude Paul <lyude@redhat.com> > Fixes: bf779aaf56ea ("platform/x86: thinkpad_acpi: Add dual fan probe") > Cc: Mark Pearson <markpearson@lenovo.com> > Cc: Hans de Goede <hdegoede@redhat.com> > Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br> > Cc: Mark Gross <markgross@kernel.org> > Cc: ibm-acpi-devel@lists.sourceforge.net > Cc: platform-driver-x86@vger.kernel.org > --- > drivers/platform/x86/thinkpad_acpi.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c > index c568fae56db2..9067fd0a945c 100644 > --- a/drivers/platform/x86/thinkpad_acpi.c > +++ b/drivers/platform/x86/thinkpad_acpi.c > @@ -8699,6 +8699,7 @@ static const struct tpacpi_quirk fan_quirk_table[] __initconst = { > TPACPI_Q_LNV3('N', '2', 'E', TPACPI_FAN_2CTL), /* P1 / X1 Extreme (1st gen) */ > TPACPI_Q_LNV3('N', '2', 'O', TPACPI_FAN_2CTL), /* P1 / X1 Extreme (2nd gen) */ > TPACPI_Q_LNV3('N', '3', '0', TPACPI_FAN_2CTL), /* P15 (1st gen) / P15v (1st gen) */ > + TPACPI_Q_LNV3('N', '3', '2', TPACPI_FAN_2CTL), /* X1 Carbon (9th gen) */ > TPACPI_Q_LNV3('N', '3', '7', TPACPI_FAN_2CTL), /* T15g (2nd gen) */ > TPACPI_Q_LNV3('N', '1', 'O', TPACPI_FAN_NOFAN), /* X1 Tablet (2nd gen) */ > }; I just double checked this on my X1C9 - and it's working correctly. 2nd fan is detected correctly. I'd rather understand why it's not working on your setup then just re-introduce the quirk. What happens on your system when the res = fan2_get_speed(&speed); is called? If that is failing it means your 2nd fan isn't responding and that's not supposed to happen. Could you let me know if you get an error code, if it happens every boot, etc I assume when the function is called later it works successfully? Also please confirm which BIOS and EC version you have. Thanks Mark
Hi Mark, On 2022-04-29 21:25-0400, Mark Pearson wrote: > Hi Lyude > > On 4/29/22 17:14, Lyude Paul wrote: > > The new method of probing dual fan support introduced in: > > > > bf779aaf56ea ("platform/x86: thinkpad_acpi: Add dual fan probe") > > > > While this commit says this works on the X1 Carbon 9th Gen, it actually > > just results in hiding the second fan on my local machine. Additionally, > > I'm fairly sure this machine powers on quite often without either of the > > two fans spinning. > > > > So let's fix this by adding back the dual fan quirk for the X1 Carbon 9th > > Gen. > > > [..] > > I just double checked this on my X1C9 - and it's working correctly. 2nd > fan is detected correctly. > > I'd rather understand why it's not working on your setup then just > re-introduce the quirk. > > What happens on your system when the > res = fan2_get_speed(&speed); > is called? If that is failing it means your 2nd fan isn't responding and > that's not supposed to happen. Could you let me know if you get an error > code, if it happens every boot, etc > I assume when the function is called later it works successfully? I have the same issue. To me it looks like this: Probing for the second fan calls fan2_get_speed(), this calls fan_select_fan2() which in turn checks that tp_features.second_fan is set. But at this point in the tp_features.second_fan can not yet be set because it is either set from quirks or *after* the probing. Maybe some of the matches for the quirk TPACPI_FAN_2FAN should also have matched this device? It doesn't do so on my device. > Also please confirm which BIOS and EC version you have. Linux: 5.17.5 BIOS Revision: 1.51 Firmware Revision: 1.32 Thomas
On 4/30/22 08:13, Thomas Weißschuh wrote: > Hi Mark, > > On 2022-04-29 21:25-0400, Mark Pearson wrote: >> Hi Lyude >> >> On 4/29/22 17:14, Lyude Paul wrote: >>> The new method of probing dual fan support introduced in: >>> >>> bf779aaf56ea ("platform/x86: thinkpad_acpi: Add dual fan probe") >>> >>> While this commit says this works on the X1 Carbon 9th Gen, it actually >>> just results in hiding the second fan on my local machine. Additionally, >>> I'm fairly sure this machine powers on quite often without either of the >>> two fans spinning. >>> >>> So let's fix this by adding back the dual fan quirk for the X1 Carbon 9th >>> Gen. >>> >> [..] >> >> I just double checked this on my X1C9 - and it's working correctly. 2nd >> fan is detected correctly. >> >> I'd rather understand why it's not working on your setup then just >> re-introduce the quirk. >> >> What happens on your system when the >> res = fan2_get_speed(&speed); >> is called? If that is failing it means your 2nd fan isn't responding and >> that's not supposed to happen. Could you let me know if you get an error >> code, if it happens every boot, etc >> I assume when the function is called later it works successfully? > > I have the same issue. > > To me it looks like this: > > Probing for the second fan calls fan2_get_speed(), this calls > fan_select_fan2() which in turn checks that tp_features.second_fan is set. > But at this point in the tp_features.second_fan can not yet be set because it > is either set from quirks or *after* the probing. > > Maybe some of the matches for the quirk TPACPI_FAN_2FAN should also have > matched this device? > It doesn't do so on my device. > >> Also please confirm which BIOS and EC version you have. > > Linux: 5.17.5 > BIOS Revision: 1.51 > Firmware Revision: 1.32 > Thanks Thomas, I'll go do some more digging on my system and see what I've missed. Mark
Some answers/comments down below On Fri, 2022-04-29 at 21:25 -0400, Mark Pearson wrote: > Hi Lyude > > On 4/29/22 17:14, Lyude Paul wrote: > > The new method of probing dual fan support introduced in: > > > > bf779aaf56ea ("platform/x86: thinkpad_acpi: Add dual fan probe") > > > > While this commit says this works on the X1 Carbon 9th Gen, it actually > > just results in hiding the second fan on my local machine. Additionally, > > I'm fairly sure this machine powers on quite often without either of the > > two fans spinning. > > > > So let's fix this by adding back the dual fan quirk for the X1 Carbon 9th > > Gen. > > > > Signed-off-by: Lyude Paul <lyude@redhat.com> > > Fixes: bf779aaf56ea ("platform/x86: thinkpad_acpi: Add dual fan probe") > > Cc: Mark Pearson <markpearson@lenovo.com> > > Cc: Hans de Goede <hdegoede@redhat.com> > > Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br> > > Cc: Mark Gross <markgross@kernel.org> > > Cc: ibm-acpi-devel@lists.sourceforge.net > > Cc: platform-driver-x86@vger.kernel.org > > --- > > drivers/platform/x86/thinkpad_acpi.c | 1 + > > 1 file changed, 1 insertion(+) > > > > diff --git a/drivers/platform/x86/thinkpad_acpi.c > > b/drivers/platform/x86/thinkpad_acpi.c > > index c568fae56db2..9067fd0a945c 100644 > > --- a/drivers/platform/x86/thinkpad_acpi.c > > +++ b/drivers/platform/x86/thinkpad_acpi.c > > @@ -8699,6 +8699,7 @@ static const struct tpacpi_quirk fan_quirk_table[] > > __initconst = { > > TPACPI_Q_LNV3('N', '2', 'E', TPACPI_FAN_2CTL), /* P1 / X1 Extreme > > (1st gen) */ > > TPACPI_Q_LNV3('N', '2', 'O', TPACPI_FAN_2CTL), /* P1 / X1 Extreme > > (2nd gen) */ > > TPACPI_Q_LNV3('N', '3', '0', TPACPI_FAN_2CTL), /* P15 (1st gen) / > > P15v (1st gen) */ > > + TPACPI_Q_LNV3('N', '3', '2', TPACPI_FAN_2CTL), /* X1 Carbon (9th > > gen) */ > > TPACPI_Q_LNV3('N', '3', '7', TPACPI_FAN_2CTL), /* T15g (2nd gen) > > */ > > TPACPI_Q_LNV3('N', '1', 'O', TPACPI_FAN_NOFAN), /* X1 Tablet (2nd > > gen) */ > > }; > I just double checked this on my X1C9 - and it's working correctly. 2nd > fan is detected correctly. > > I'd rather understand why it's not working on your setup then just > re-introduce the quirk. Of course! I figured as much, it's just easy to start conversations with a revert :P > > What happens on your system when the > res = fan2_get_speed(&speed); > is called? If that is failing it means your 2nd fan isn't responding and > that's not supposed to happen. Could you let me know if you get an error > code, if it happens every boot, etc > I assume when the function is called later it works successfully? It definitely seems to happen every boot, not sure about the error code it returns. I will check and get you this info asap > > Also please confirm which BIOS and EC version you have. BIOS version N32ET75W (1.51) release date 12/02/2021, embedded controller is 0.1.32 > > Thanks > Mark >
On 5/2/22 13:42, Lyude Paul wrote: > Some answers/comments down below > > On Fri, 2022-04-29 at 21:25 -0400, Mark Pearson wrote: >> Hi Lyude >> >> On 4/29/22 17:14, Lyude Paul wrote: >>> The new method of probing dual fan support introduced in: >>> >>> bf779aaf56ea ("platform/x86: thinkpad_acpi: Add dual fan probe") >>> >>> While this commit says this works on the X1 Carbon 9th Gen, it actually >>> just results in hiding the second fan on my local machine. Additionally, >>> I'm fairly sure this machine powers on quite often without either of the >>> two fans spinning. >>> >>> So let's fix this by adding back the dual fan quirk for the X1 Carbon 9th >>> Gen. >>> >>> Signed-off-by: Lyude Paul <lyude@redhat.com> >>> Fixes: bf779aaf56ea ("platform/x86: thinkpad_acpi: Add dual fan probe") >>> Cc: Mark Pearson <markpearson@lenovo.com> >>> Cc: Hans de Goede <hdegoede@redhat.com> >>> Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br> >>> Cc: Mark Gross <markgross@kernel.org> >>> Cc: ibm-acpi-devel@lists.sourceforge.net >>> Cc: platform-driver-x86@vger.kernel.org >>> --- >>> drivers/platform/x86/thinkpad_acpi.c | 1 + >>> 1 file changed, 1 insertion(+) >>> >>> diff --git a/drivers/platform/x86/thinkpad_acpi.c >>> b/drivers/platform/x86/thinkpad_acpi.c >>> index c568fae56db2..9067fd0a945c 100644 >>> --- a/drivers/platform/x86/thinkpad_acpi.c >>> +++ b/drivers/platform/x86/thinkpad_acpi.c >>> @@ -8699,6 +8699,7 @@ static const struct tpacpi_quirk fan_quirk_table[] >>> __initconst = { >>> TPACPI_Q_LNV3('N', '2', 'E', TPACPI_FAN_2CTL), /* P1 / X1 Extreme >>> (1st gen) */ >>> TPACPI_Q_LNV3('N', '2', 'O', TPACPI_FAN_2CTL), /* P1 / X1 Extreme >>> (2nd gen) */ >>> TPACPI_Q_LNV3('N', '3', '0', TPACPI_FAN_2CTL), /* P15 (1st gen) / >>> P15v (1st gen) */ >>> + TPACPI_Q_LNV3('N', '3', '2', TPACPI_FAN_2CTL), /* X1 Carbon (9th >>> gen) */ >>> TPACPI_Q_LNV3('N', '3', '7', TPACPI_FAN_2CTL), /* T15g (2nd gen) >>> */ >>> TPACPI_Q_LNV3('N', '1', 'O', TPACPI_FAN_NOFAN), /* X1 Tablet (2nd >>> gen) */ >>> }; >> I just double checked this on my X1C9 - and it's working correctly. 2nd >> fan is detected correctly. >> >> I'd rather understand why it's not working on your setup then just >> re-introduce the quirk. > > Of course! I figured as much, it's just easy to start conversations with a > revert :P > >> >> What happens on your system when the >> res = fan2_get_speed(&speed); >> is called? If that is failing it means your 2nd fan isn't responding and >> that's not supposed to happen. Could you let me know if you get an error >> code, if it happens every boot, etc >> I assume when the function is called later it works successfully? > > It definitely seems to happen every boot, not sure about the error code it > returns. I will check and get you this info asap > >> >> Also please confirm which BIOS and EC version you have. > > BIOS version N32ET75W (1.51) release date 12/02/2021, embedded controller is > 0.1.32 > > Thanks! Along with Thomas' notes I think I've found the problem (though still bemused why I don't see the problem on my X1C9 and I tested on multiple platforms previously...so it is somewhat weird). Working on a fix - will try and have that out for review later today or tomorrow. Mark
On 5/2/22 13:44, Mark Pearson wrote: > > > On 5/2/22 13:42, Lyude Paul wrote: >> Some answers/comments down below >> >> On Fri, 2022-04-29 at 21:25 -0400, Mark Pearson wrote: >>> Hi Lyude >>> >>> On 4/29/22 17:14, Lyude Paul wrote: >>>> The new method of probing dual fan support introduced in: >>>> >>>> bf779aaf56ea ("platform/x86: thinkpad_acpi: Add dual fan probe") >>>> >>>> While this commit says this works on the X1 Carbon 9th Gen, it actually >>>> just results in hiding the second fan on my local machine. Additionally, >>>> I'm fairly sure this machine powers on quite often without either of the >>>> two fans spinning. >>>> >>>> So let's fix this by adding back the dual fan quirk for the X1 Carbon 9th >>>> Gen. >>>> >>>> Signed-off-by: Lyude Paul <lyude@redhat.com> >>>> Fixes: bf779aaf56ea ("platform/x86: thinkpad_acpi: Add dual fan probe") >>>> Cc: Mark Pearson <markpearson@lenovo.com> >>>> Cc: Hans de Goede <hdegoede@redhat.com> >>>> Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br> >>>> Cc: Mark Gross <markgross@kernel.org> >>>> Cc: ibm-acpi-devel@lists.sourceforge.net >>>> Cc: platform-driver-x86@vger.kernel.org >>>> --- >>>> drivers/platform/x86/thinkpad_acpi.c | 1 + >>>> 1 file changed, 1 insertion(+) >>>> >>>> diff --git a/drivers/platform/x86/thinkpad_acpi.c >>>> b/drivers/platform/x86/thinkpad_acpi.c >>>> index c568fae56db2..9067fd0a945c 100644 >>>> --- a/drivers/platform/x86/thinkpad_acpi.c >>>> +++ b/drivers/platform/x86/thinkpad_acpi.c >>>> @@ -8699,6 +8699,7 @@ static const struct tpacpi_quirk fan_quirk_table[] >>>> __initconst = { >>>> TPACPI_Q_LNV3('N', '2', 'E', TPACPI_FAN_2CTL), /* P1 / X1 Extreme >>>> (1st gen) */ >>>> TPACPI_Q_LNV3('N', '2', 'O', TPACPI_FAN_2CTL), /* P1 / X1 Extreme >>>> (2nd gen) */ >>>> TPACPI_Q_LNV3('N', '3', '0', TPACPI_FAN_2CTL), /* P15 (1st gen) / >>>> P15v (1st gen) */ >>>> + TPACPI_Q_LNV3('N', '3', '2', TPACPI_FAN_2CTL), /* X1 Carbon (9th >>>> gen) */ >>>> TPACPI_Q_LNV3('N', '3', '7', TPACPI_FAN_2CTL), /* T15g (2nd gen) >>>> */ >>>> TPACPI_Q_LNV3('N', '1', 'O', TPACPI_FAN_NOFAN), /* X1 Tablet (2nd >>>> gen) */ >>>> }; >>> I just double checked this on my X1C9 - and it's working correctly. 2nd >>> fan is detected correctly. >>> >>> I'd rather understand why it's not working on your setup then just >>> re-introduce the quirk. >> >> Of course! I figured as much, it's just easy to start conversations with a >> revert :P >> >>> >>> What happens on your system when the >>> res = fan2_get_speed(&speed); >>> is called? If that is failing it means your 2nd fan isn't responding and >>> that's not supposed to happen. Could you let me know if you get an error >>> code, if it happens every boot, etc >>> I assume when the function is called later it works successfully? >> >> It definitely seems to happen every boot, not sure about the error code it >> returns. I will check and get you this info asap >> >>> >>> Also please confirm which BIOS and EC version you have. >> >> BIOS version N32ET75W (1.51) release date 12/02/2021, embedded controller is >> 0.1.32 >> >> > Thanks! > > Along with Thomas' notes I think I've found the problem (though still > bemused why I don't see the problem on my X1C9 and I tested on multiple > platforms previously...so it is somewhat weird). > > Working on a fix - will try and have that out for review later today or > tomorrow. > Not sure exactly what the etiquette here is for the mailing list but I just posted an updated patch "platform/x86: thinkpad_acpi: Correct dual fan probe" that I think addresses all the issues raised in this patch sequence. Please let me know any feedback or concerns. And thanks for raising this! Mark
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index c568fae56db2..9067fd0a945c 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -8699,6 +8699,7 @@ static const struct tpacpi_quirk fan_quirk_table[] __initconst = { TPACPI_Q_LNV3('N', '2', 'E', TPACPI_FAN_2CTL), /* P1 / X1 Extreme (1st gen) */ TPACPI_Q_LNV3('N', '2', 'O', TPACPI_FAN_2CTL), /* P1 / X1 Extreme (2nd gen) */ TPACPI_Q_LNV3('N', '3', '0', TPACPI_FAN_2CTL), /* P15 (1st gen) / P15v (1st gen) */ + TPACPI_Q_LNV3('N', '3', '2', TPACPI_FAN_2CTL), /* X1 Carbon (9th gen) */ TPACPI_Q_LNV3('N', '3', '7', TPACPI_FAN_2CTL), /* T15g (2nd gen) */ TPACPI_Q_LNV3('N', '1', 'O', TPACPI_FAN_NOFAN), /* X1 Tablet (2nd gen) */ };
The new method of probing dual fan support introduced in: bf779aaf56ea ("platform/x86: thinkpad_acpi: Add dual fan probe") While this commit says this works on the X1 Carbon 9th Gen, it actually just results in hiding the second fan on my local machine. Additionally, I'm fairly sure this machine powers on quite often without either of the two fans spinning. So let's fix this by adding back the dual fan quirk for the X1 Carbon 9th Gen. Signed-off-by: Lyude Paul <lyude@redhat.com> Fixes: bf779aaf56ea ("platform/x86: thinkpad_acpi: Add dual fan probe") Cc: Mark Pearson <markpearson@lenovo.com> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Cc: Mark Gross <markgross@kernel.org> Cc: ibm-acpi-devel@lists.sourceforge.net Cc: platform-driver-x86@vger.kernel.org --- drivers/platform/x86/thinkpad_acpi.c | 1 + 1 file changed, 1 insertion(+)