[PATCH 2/7] ASoC: Intel: Skylake: Select hda configuration permissively
Cezary Rojewski
cezary.rojewski at intel.com
Tue Mar 10 10:30:38 CET 2020
On 2020-03-09 18:03, Pierre-Louis Bossart wrote:
> On 3/9/20 8:47 AM, Cezary Rojewski wrote:
>> On 2020-03-06 21:57, Pierre-Louis Bossart wrote:
>>> On 3/5/20 8:53 AM, Cezary Rojewski wrote:
>>>> With _reset_link removed from the probe sequence, codec_mask at the
>>>> time
>>>> skl_find_hda_machine() is invoked will always be 0, so hda machine will
>>>> never be chosen. Rather than reorganizing boot flow, be permissive
>>>> about
>>>> invalid mask. codec_mask will be set to proper value during
>>>> probe_work -
>>>> before skl_codec_create() ever gets called.
>>>
>>> humm, what would happen e.g. if you have select the SKL driver but
>>> there is no ACPI information to select an I2S-based machine driver,
>>> and HDaudio/iDISP are disabled? You would have no error checks then?
>>>
>>
>> Laptops I've been testing this with have had Realtek + iDisp present
>> onboard. Now, if you disable Realtek + HDMI/DP modules within legacy
>> HDaudio Kconfig and HD audio support within Intel Skylake tree then
>> you end up with no required modules for said configuration at all.
>> Nothing will happen really: no warnings, no sound card either.
>
> I meant enable the HDaudio controller but disable HDaudio codecs/HDMI at
> the BIOS level. In that case the codec_mask will never be set.
>
Applying diff (better than BIOS options which are not even present on
some prod machines):
diff --git a/sound/hda/hdac_controller.c b/sound/hda/hdac_controller.c
index 7e7be8e4dcf9..b0e4579f26f6 100644
--- a/sound/hda/hdac_controller.c
+++ b/sound/hda/hdac_controller.c
@@ -421,7 +421,8 @@ int snd_hdac_bus_reset_link(struct hdac_bus *bus,
bool full_reset)
/* detect codecs */
if (!bus->codec_mask) {
- bus->codec_mask = snd_hdac_chip_readw(bus, STATESTS);
+ //bus->codec_mask = snd_hdac_chip_readw(bus, STATESTS);
+ bus->codec_mask = 0;
dev_dbg(bus->dev, "codec_mask = 0x%lx\n", bus->codec_mask);
}
---
Results:
- skl boots
- no machines present
- drv stays dormant
Dumping boot log below (notice the '[ 21.569291] snd_soc_skl
0000:00:1f.3: codec_mask = 0x0' message):
[ 21.462507] snd_soc_core:snd_soc_register_dai: snd-soc-dummy
snd-soc-dummy: ASoC: dynamically register DAI snd-soc-dummy
[ 21.462541] snd_soc_core:snd_soc_register_dai: snd-soc-dummy
snd-soc-dummy: ASoC: Registered DAI 'snd-soc-dummy-dai'
[ 21.536668] snd_soc_skl 0000:00:1f.3: DSP detected with PCI
class/subclass/prog-if info 0x040380
[ 21.542406] snd_hda_core:snd_hdac_bus_parse_capabilities: snd_soc_skl
0000:00:1f.3: Capability version: 0x0
[ 21.542412] snd_hda_core:snd_hdac_bus_parse_capabilities: snd_soc_skl
0000:00:1f.3: HDA capability ID: 0x2
[ 21.542416] snd_hda_core:snd_hdac_bus_parse_capabilities: snd_soc_skl
0000:00:1f.3: Found ML capability
[ 21.542421] snd_hda_core:snd_hdac_bus_parse_capabilities: snd_soc_skl
0000:00:1f.3: Capability version: 0x0
[ 21.542425] snd_hda_core:snd_hdac_bus_parse_capabilities: snd_soc_skl
0000:00:1f.3: HDA capability ID: 0x3
[ 21.542429] snd_hda_core:snd_hdac_bus_parse_capabilities: snd_soc_skl
0000:00:1f.3: Found PP capability offset=800
[ 21.542434] snd_hda_core:snd_hdac_bus_parse_capabilities: snd_soc_skl
0000:00:1f.3: Capability version: 0x0
[ 21.542438] snd_hda_core:snd_hdac_bus_parse_capabilities: snd_soc_skl
0000:00:1f.3: HDA capability ID: 0x1
[ 21.542443] snd_hda_core:snd_hdac_bus_parse_capabilities: snd_soc_skl
0000:00:1f.3: Found GTS capability offset=500
[ 21.542448] snd_hda_core:snd_hdac_bus_parse_capabilities: snd_soc_skl
0000:00:1f.3: Capability version: 0x0
[ 21.542451] snd_hda_core:snd_hdac_bus_parse_capabilities: snd_soc_skl
0000:00:1f.3: HDA capability ID: 0x5
[ 21.542455] snd_hda_core:snd_hdac_bus_parse_capabilities: snd_soc_skl
0000:00:1f.3: Found DRSM capability
[ 21.542460] snd_hda_core:snd_hdac_bus_parse_capabilities: snd_soc_skl
0000:00:1f.3: Capability version: 0x0
[ 21.542465] snd_hda_core:snd_hdac_bus_parse_capabilities: snd_soc_skl
0000:00:1f.3: HDA capability ID: 0x4
[ 21.542468] snd_hda_core:snd_hdac_bus_parse_capabilities: snd_soc_skl
0000:00:1f.3: Found SPB capability
[ 21.542672] snd_soc_skl:skl_first_init: snd_soc_skl 0000:00:1f.3:
chipset global capabilities = 0x9701
[ 21.556416] snd_soc_skl:skl_nhlt_update_topology_bin: snd_soc_skl
0000:00:1f.3: oem_id LENOVO, oem_table_id TP-N23 oem_revision 4880
[ 21.557053] snd_soc_skl:skl_find_machine: snd_soc_skl 0000:00:1f.3:
No matching I2S machine driver found
[ 21.557650] snd_soc_skl:skl_init_dsp: snd_soc_skl 0000:00:1f.3: dsp
registration status=0
[ 21.557658] snd_hda_ext_core:snd_hdac_ext_bus_get_ml_capabilities:
snd_soc_skl 0000:00:1f.3: In snd_hdac_ext_bus_get_ml_capabilities Link
count: 2
[ 21.558254] snd_soc_skl 0000:00:1f.3: bound 0000:00:02.0 (ops
i915_audio_component_bind_ops [i915])
[ 21.558259] snd_hda_core:snd_hdac_display_power: snd_soc_skl
0000:00:1f.3: display power enable
[ 21.558272] snd_hda_core:snd_hdac_set_codec_wakeup: snd_soc_skl
0000:00:1f.3: enable codec wakeup
[ 21.561088] snd_hda_core:snd_hdac_set_codec_wakeup: snd_soc_skl
0000:00:1f.3: disable codec wakeup
[ 21.562606] snd_soc_skl:skl_init_pci: snd_soc_skl 0000:00:1f.3:
Clearing TCSEL
[ 21.562617] snd_hda_core:snd_hdac_set_codec_wakeup: snd_soc_skl
0000:00:1f.3: enable codec wakeup
[ 21.569291] snd_soc_skl 0000:00:1f.3: codec_mask = 0x0
[ 21.569306] snd_hda_core:snd_hdac_set_codec_wakeup: snd_soc_skl
0000:00:1f.3: disable codec wakeup
[ 21.570856] snd_soc_skl 0000:00:1f.3: no hda codecs found!
[ 21.570901] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: dynamically register DAI 0000:00:1f.3
[ 21.570923] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: Registered DAI 'SSP0 Pin'
[ 21.570927] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: dynamically register DAI 0000:00:1f.3
[ 21.570947] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: Registered DAI 'SSP1 Pin'
[ 21.570951] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: dynamically register DAI 0000:00:1f.3
[ 21.570971] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: Registered DAI 'SSP2 Pin'
[ 21.570976] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: dynamically register DAI 0000:00:1f.3
[ 21.570996] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: Registered DAI 'SSP3 Pin'
[ 21.571000] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: dynamically register DAI 0000:00:1f.3
[ 21.571020] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: Registered DAI 'SSP4 Pin'
[ 21.571024] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: dynamically register DAI 0000:00:1f.3
[ 21.571044] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: Registered DAI 'SSP5 Pin'
[ 21.571048] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: dynamically register DAI 0000:00:1f.3
[ 21.571067] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: Registered DAI 'iDisp1 Pin'
[ 21.571077] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: dynamically register DAI 0000:00:1f.3
[ 21.571099] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: Registered DAI 'iDisp2 Pin'
[ 21.571103] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: dynamically register DAI 0000:00:1f.3
[ 21.571125] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: Registered DAI 'iDisp3 Pin'
[ 21.571129] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: dynamically register DAI 0000:00:1f.3
[ 21.571148] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: Registered DAI 'DMIC01 Pin'
[ 21.571153] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: dynamically register DAI 0000:00:1f.3
[ 21.571172] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: Registered DAI 'DMIC16k Pin'
[ 21.571176] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: dynamically register DAI 0000:00:1f.3
[ 21.571209] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: Registered DAI 'Analog CPU DAI'
[ 21.571213] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: dynamically register DAI 0000:00:1f.3
[ 21.571230] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: Registered DAI 'Alt Analog CPU DAI'
[ 21.571233] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: dynamically register DAI 0000:00:1f.3
[ 21.571250] snd_soc_core:snd_soc_register_dai: snd_soc_skl
0000:00:1f.3: ASoC: Registered DAI 'Digital CPU DAI'
[ 21.571566] snd_hda_core:snd_hdac_display_power: snd_soc_skl
0000:00:1f.3: display power disable
[ 21.571585] snd_soc_skl:skl_runtime_suspend: snd_soc_skl
0000:00:1f.3: in skl_runtime_suspend
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