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mounty1
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 Posted: Sat May 14, 2016 10:45 pm Post subject: Unable to select Haswell audio in kernel configuration |
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This is a screen dump of make nconfig with a search for substring haswell: | Code: | .config - Linux/x86 4.5.2-gentoo Kernel Configuration
┌── ALSA for SoC audio support ───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│ │
│ --- ALSA for SoC audio support │
│ < > AMD Audio Coprocessor support │
│ < > SoC Audio for the Atmel System-on-Chip │
│ < > Synopsys I2S Device Driver │
│ SoC Audio for Freescale CPUs ---> │
│ [ ] Audio support for Imagination Technologies designs │
│ < > ASoC Audio driver for Intel Baytrail and Baytrail-CR with RT5640 codec │
│ < > ASoC Audio driver for Intel Baytrail and Baytrail-CR with RT5651 codec │
┌── Search Results ───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│ │
│ Symbol: SND_SOC_INTEL_HASWELL [=n] │
│ Type : tristate │
│ Defined at sound/soc/intel/Kconfig:42 │
│ Depends on: SOUND [=m] && !M68K && !UML && SND [=m] && SND_SOC [=m] │
│ Selected by: SND_SOC_INTEL_HASWELL_MACH [=n] && SOUND [=m] && !M68K && !UML && SND [=m] && SND_SOC [=m] && X86_INTEL_LPSS [=y] && I2C [=y] && I2C_DESIGNWARE_PLATFORM [=m] && DW_DMAC_CORE [=m]=y || SND_SOC_INTEL_BROADWELL_MACH [=n] && SOUND [=m] &│
│ │
│ │
│ Symbol: SND_SOC_INTEL_HASWELL_MACH [=n] │
│ Type : tristate │
│ Prompt: ASoC Audio DSP support for Intel Haswell Lynxpoint │
│ Location: │
│ -> Device Drivers │
│ -> Sound card support (SOUND [=m]) │
│ -> Advanced Linux Sound Architecture (SND [=m]) │
│ -> ALSA for SoC audio support (SND_SOC [=m]) │
│ Defined at sound/soc/intel/Kconfig:48 │
│ Depends on: SOUND [=m] && !M68K && !UML && SND [=m] && SND_SOC [=m] && X86_INTEL_LPSS [=y] && I2C [=y] && I2C_DESIGNWARE_PLATFORM [=m] && DW_DMAC_CORE [=m]=y │
│ Selects: SND_SOC_INTEL_SST [=n] && SND_SOC_INTEL_HASWELL [=n] && SND_SOC_RT5640 [=n] │
│ │
│ │
│ │
│ <OK> │
└─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
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└F1Help─F2SymInfo─F3Help 2─F4ShowAll─F5Back─F6Save─F7Load─F8SymSearch─F9Exit──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘ |
I don't understand why symbol SND_SOC_INTEL_HASWELL_MACH isn't selectable, since all the dependencies are met. In particular, I confirm that neither M68K nor UML are defined. Any ideas?
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Michael Mounteney |
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skiwarz
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| Posted: Sun May 15, 2016 8:23 am Post subject: |
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| I don't know if it will do anything... but what if you manually edit the .config and change the "[=n]" to "[=y]"? |
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Buffoon
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| Posted: Sun May 15, 2016 10:21 am Post subject: |
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| Use arrow right to see all dependencies. |
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mounty1
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| Posted: Sun May 15, 2016 10:41 am Post subject: |
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| Buffoon wrote: | | Use arrow right to see all dependencies. |
I appreciate your wish to help, but look at the nconfig screen: SND_SOC_INTEL_HASWELL depends on SND_SOC_INTEL_HASWELL_MACH; i.e., SND_SOC_INTEL_HASWELL_MACH is the blocker, and all its dependencies are on-screen.
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mounty1
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| Posted: Sun May 15, 2016 10:43 am Post subject: |
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| skiwarz wrote: | | I don't know if it will do anything... but what if you manually edit the .config and change the "[=n]" to "[=y]"? |
That's a really dodgy thing to do, but in any case, no _HASWELL_ symbol appears in .config.
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Michael Mounteney |
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skiwarz
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| Posted: Sun May 15, 2016 6:42 pm Post subject: |
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| It's possible that option isn't even defined anymore. I searched through /usr/src/linux-4.5/arch/x86/configs (which I'm pretty sure is the "defaults" config directory) and didn't find any _HASWELL_ symbols. I didn't look at change logs, but is it possible they re-arranged the config for it? |
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Buffoon
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| Posted: Sun May 15, 2016 7:12 pm Post subject: |
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| The option is there alright, but I'm wondering what is the meaning of this: !M68K && !UML |
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mounty1
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| Posted: Sun May 15, 2016 8:02 pm Post subject: |
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| skiwarz wrote: | | It's possible that option isn't even defined anymore. |
It's possible, but the kernel still supports 80486s and if you search case-folding for haswell (no underscores), there are plenty of references.
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