On Tue, 23 May 2023 13:22:03 +0200,
Ding, Shenghao wrote:
>
> > + [ALC287_FIXUP_TAS2781_I2C_2] = {
> > + .type = HDA_FIXUP_FUNC,
> > + .v.func = tas2781_fixup_i2c,
> > + .chained = true,
> > + .chain_id = ALC269_FIXUP_THINKPAD_ACPI,
> > + },
> > + [ALC287_FIXUP_TAS2781_I2C_4] = {
> > + .type = HDA_FIXUP_FUNC,
> > + .v.func = tas2781_fixup_i2c,
> > + .chained = true,
> > + .chain_id = ALC269_FIXUP_THINKPAD_ACPI,
> > + },
>
> What's a difference between *_2 and *_4?
> Combine them into ALC287_FIXUP_TAS2781_I2C
Hm, so there is no difference in stereo and quad speakers?
> > +static int tas2781_save_calibration(struct tasdevice_priv *tas_priv)
> > +{
> > + efi_guid_t efi_guid = EFI_GUID(0x02f9af02, 0x7734, 0x4233, 0xb4, 0x3d,
> > + 0x93, 0xfe, 0x5a, 0xa3, 0x5d, 0xb3);
> > + static efi_char16_t efi_name[] = L"CALI_DATA";
> > + struct hda_codec *codec = tas_priv->codec;
> > + unsigned int subid = codec->core.subsystem_id & 0xFFFF;
> > + struct tm *tm = &tas_priv->tm;
> > + unsigned int attr, crc;
> > + unsigned int *tmp_val;
> > + efi_status_t status;
> > + int ret = 0;
> > +
> > + //Lenovo devices
> > + if ((subid == 0x387d) || (subid == 0x387e) || (subid == 0x3881)
> > + || (subid == 0x3884) || (subid == 0x3886) || (subid == 0x38a7)
> > + || (subid == 0x38a8) || (subid == 0x38ba) || (subid == 0x38bb)
> > + || (subid == 0x38be) || (subid == 0x38bf) || (subid == 0x38c3)
> > + || (subid == 0x38cb) || (subid == 0x38cd))
> > + efi_guid = EFI_GUID(0x1f52d2a1, 0xbb3a, 0x457d, 0xbc, 0x09,
> > + 0x43, 0xa3, 0xf4, 0x31, 0x0a, 0x92);
>
> Here can be a problem: the device ID is embedded here, and it's hard to find out. You'd better to make it some quirk flag that is set in a common place and check the flag here instead of checking ID at each place.
>
> Do you have example of the solution? I found some quirk flag is static in the patch_realtek.c, can't be accessed outside that file.
You may store some values in struct hda_component, I suppose?
BTW, please try to fix your mailer to do citation more correctly...
thanks,
Takashi
