On Tue, 14 Nov 2023, Ville Syrjälä <[email protected]> wrote:
> On Mon, Oct 02, 2023 at 09:38:44PM +0200, [email protected] 
> wrote:
>> From: Maarten Lankhorst <[email protected]>
>> 
>> Now that we can use -EPROBE_DEFER, it's no longer required to spin off
>> the snd_hdac_i915_init into a workqueue.
>> 
>> Use the -EPROBE_DEFER mechanism instead, which must be returned in the
>> probe function.
>
> This completely broke i915 audio!
>
> I also can't see any trace of this stuff ever being posted to 
> intel-gfx so it never went through the CI.
>
> Please fix or revert ASAP.

Cc: Jani, Suresh

Ville, please file a bug at gitlab so we can track this, thanks.

BR,
Jani.



>
>> 
>> Signed-off-by: Maarten Lankhorst <[email protected]>
>> Reviewed-by: Kai Vehmanen <[email protected]>
>> Reviewed-by: Pierre-Louis Bossart <[email protected]>
>> Signed-off-by: Maarten Lankhorst <[email protected]>
>> ---
>>  sound/pci/hda/hda_intel.c | 54 +++++++++++++++++++--------------------
>>  1 file changed, 27 insertions(+), 27 deletions(-)
>> 
>> diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
>> index e42ad0e816e1..9dad3607596a 100644
>> --- a/sound/pci/hda/hda_intel.c
>> +++ b/sound/pci/hda/hda_intel.c
>> @@ -2135,6 +2135,33 @@ static int azx_probe(struct pci_dev *pci,
>>  
>>      pci_set_drvdata(pci, card);
>>  
>> +#ifdef CONFIG_SND_HDA_I915
>> +    /* bind with i915 if needed */
>> +    if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT) {
>> +            err = snd_hdac_i915_init(azx_bus(chip), false);
>> +            if (err < 0) {
>> +                    /* if the controller is bound only with HDMI/DP
>> +                     * (for HSW and BDW), we need to abort the probe;
>> +                     * for other chips, still continue probing as other
>> +                     * codecs can be on the same link.
>> +                     */
>> +                    if (HDA_CONTROLLER_IN_GPU(pci)) {
>> +                            goto out_free;
>> +                    } else {
>> +                            /* don't bother any longer */
>> +                            chip->driver_caps &= ~AZX_DCAPS_I915_COMPONENT;
>> +                    }
>> +            }
>> +
>> +            /* HSW/BDW controllers need this power */
>> +            if (HDA_CONTROLLER_IN_GPU(pci))
>> +                    hda->need_i915_power = true;
>> +    }
>> +#else
>> +    if (HDA_CONTROLLER_IN_GPU(pci))
>> +            dev_err(card->dev, "Haswell/Broadwell HDMI/DP must build in 
>> CONFIG_SND_HDA_I915\n");
>> +#endif
>> +
>>      err = register_vga_switcheroo(chip);
>>      if (err < 0) {
>>              dev_err(card->dev, "Error registering vga_switcheroo client\n");
>> @@ -2162,11 +2189,6 @@ static int azx_probe(struct pci_dev *pci,
>>      }
>>  #endif /* CONFIG_SND_HDA_PATCH_LOADER */
>>  
>> -#ifndef CONFIG_SND_HDA_I915
>> -    if (HDA_CONTROLLER_IN_GPU(pci))
>> -            dev_err(card->dev, "Haswell/Broadwell HDMI/DP must build in 
>> CONFIG_SND_HDA_I915\n");
>> -#endif
>> -
>>      if (schedule_probe)
>>              schedule_delayed_work(&hda->probe_work, 0);
>>  
>> @@ -2264,28 +2286,6 @@ static int azx_probe_continue(struct azx *chip)
>>      to_hda_bus(bus)->bus_probing = 1;
>>      hda->probe_continued = 1;
>>  
>> -    /* bind with i915 if needed */
>> -    if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT) {
>> -            err = snd_hdac_i915_init(bus, true);
>> -            if (err < 0) {
>> -                    /* if the controller is bound only with HDMI/DP
>> -                     * (for HSW and BDW), we need to abort the probe;
>> -                     * for other chips, still continue probing as other
>> -                     * codecs can be on the same link.
>> -                     */
>> -                    if (HDA_CONTROLLER_IN_GPU(pci)) {
>> -                            goto out_free;
>> -                    } else {
>> -                            /* don't bother any longer */
>> -                            chip->driver_caps &= ~AZX_DCAPS_I915_COMPONENT;
>> -                    }
>> -            }
>> -
>> -            /* HSW/BDW controllers need this power */
>> -            if (HDA_CONTROLLER_IN_GPU(pci))
>> -                    hda->need_i915_power = true;
>> -    }
>> -
>>      /* Request display power well for the HDA controller or codec. For
>>       * Haswell/Broadwell, both the display HDA controller and codec need
>>       * this power. For other platforms, like Baytrail/Braswell, only the
>> -- 
>> 2.40.1

-- 
Jani Nikula, Intel

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