ALSA: hda - Adjust speaker HPF and add LED support for HP Spectre 13

[Takashi Iwai]

From: Takashi Iwai <tiwai@xxxxxxx>

commit 8b3dfdaf0c25a584cb31d04d2574115cf2d422ab upstream.

HP Spectre 13 has the IDT 92HD95 codec, and BIOS seems to set the
default high-pass filter in some "safer" range, which results in the
very soft tone from the built-in speakers in contrast to Windows.
Also, the mute LED control is missing, since 92HD95 codec still has no
HP-specific fixups for GPIO setups.

This patch adds these missing features: the HPF is adjusted by the
vendor-specific verb, and the LED is set up from a DMI string (but
with the default polarity = 0 assumption due to the incomplete BIOS on
the given machine).

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=74841
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
...
===============================================================================

This patch uses codec_dbg(), however, this macro is intrdocuded by the
following patch and it's not applied to these stable-tree yet.

===============================================================================
ommit 4e76a8833fac8dc1735aa5be7d1b3c92c65e209e
Author: Takashi Iwai <tiwai@xxxxxxx>
Date:   Tue Feb 25 12:21:03 2014 +0100

    ALSA: hda - Replace with standard printk

    Use dev_err() and co for messages from HD-audio controller and codec
    drivers.  The codec drivers are mostly bound with codec objects, so
    some helper macros, codec_err(), codec_info(), etc, are provided.
    They merely wrap the corresponding dev_xxx().

    There are a few places still calling snd_printk() and its variants
    as they are called without the codec or device context.

    Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
...
===============================================================================

Unfortunately I failed to apply this patch to 3.14.11-rc1 with the following
error log.

===============================================================================
$ git apply ~/src/test-linux-stable/extra_patch.txt 
error: patch failed: sound/pci/hda/hda_intel.c:897
error: sound/pci/hda/hda_intel.c: patch does not apply
error: sound/pci/hda/hda_sysfs.c: No such file or directory
===============================================================================

I'm not sure whether we should drop this patch or should apply extra patches
to remove this build failure. Any idea?

Thanks,
Satoru


> 
> ===============================================================================
> ...
> home/sat/src/test-linux-stable/linux-stable/sound/pci/hda/patch_sigmatel.c:4143:3: error: implicit declaration of function ¡codec_dbg¢ [-Werror=implicit-function-declaration]
>    codec_dbg(codec, "mute LED gpio %d polarity %d\n",
>    ^
>   LD [M]  sound/pci/echoaudio/snd-indigoio.o
>   LD [M]  sound/pci/echoaudio/snd-indigodj.o
>   LD [M]  sound/pci/echoaudio/snd-indigoiox.o
>   LD [M]  sound/pci/echoaudio/snd-indigodjx.o
>   CC [M]  sound/pci/hda/patch_via.o
>   LD      sound/pci/ice1712/built-in.o
>   CC [M]  sound/pci/ice1712/ice1712.o
> cc1: some warnings being treated as errors
> /home/sat/src/test-linux-stable/linux-stable/scripts/Makefile.build:308: recipe for target 'sound/pci/hda/patch_sigmatel.o' failed
> make[4]: *** [sound/pci/hda/patch_sigmatel.o] Error 1
> ...
>   CC      drivers/iommu/irq_remapping.o
> /home/sat/src/test-linux-stable/linux-stable/scripts/Makefile.build:455: recipe for target 'sound/pci/hda' failed
> make[3]: *** [sound/pci/hda] Error 2
> ...
> /home/sat/src/test-linux-stable/linux-stable/scripts/Makefile.build:455: recipe for target 'sound/pci' failed
> make[2]: *** [sound/pci] Error 2
> /home/sat/src/test-linux-stable/linux-stable/Makefile:841: recipe for target 'sound' failed
> make[1]: *** [sound] Error 2
> ...
> Makefile:133: recipe for target 'sub-make' failed
> make: *** [sub-make] Error 2
> FAILED!
> CRITICAL FAILURE... failed build
> ...
> ===============================================================================
> 
>  - Test Cases:
>    - Build this kernel.
>    - Boot this kernel.
>    - Build the latest mainline kernel with this kernel.
> 
>  - Test Tool:
>    https://github.com/satoru-takeuchi/test-linux-stable
> 
>  - Test Result (kernel .config, ktest config and test log):
>    http://satoru-takeuchi.org/test-linux-stable/results/<version>-<test datetime>.tar.xz
> 
>  - Build Environment:
>    - OS: Debian Jessy x86_64
>    - CPU: Intel(R) Core(TM) i5-2400 CPU @ 3.10GHz x 4
>    - memory: 8GB
> 
>  - Test Target Environment:
>    - Debian Jessy x86_64 (KVM guest on the Build Environment)
>    - # of vCPU: 2
>    - memory: 2GB
> 
> Thanks,
> Satoru
> 
> 
> > 
> > Guenter
> > 
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