[alsa-devel] Build regressions/improvements in v4.20-rc1 (sound/pci/hda/patch_ca0132.c)

[Geert Uytterhoeven]

Hi Pierre,

On Tue, Nov 6, 2018 at 3:56 PM Pierre-Louis Bossart
<pierre-louis.bossart at linux.intel.com> wrote:
> >>>>
> >>>> *** ERRORS ***
> >>>>
> >>>>    + /kisskb/src/sound/pci/hda/patch_ca0132.c: error: implicit declaration of function 'pci_iomap' [-Werror=implicit-function-declaration]:  => 8799:3
> >>> sh4-all{mod,yes}config
> >>>
> >>> Looks like d9b84a15892c0233 ("ALSA: hda: Fix implicit definition of
> >>> pci_iomap() on SH")
> >>> is not sufficient?
> >> Different problem.  This is about "select":
> >>
> >> config SND_SOC_ALL_CODECS
> >>          tristate "Build all ASoC CODEC drivers"
> >>
> >> That enables (sets):
> >>          select SND_SOC_HDAC_HDA
> >> which selects SND_HDA even though CONFIG_PCI is not enabled.
> >>
> >> After SND_HDA is selected (above), the Kconfig symbols in
> >> sound/pci/hda/Kconfig are available for enabling, so
> >> SND_HDA_CODEC_CA0132 is enabled but will not build.
> > Thanks for looking into this!
> >
> >> One simple solution (but possibly too naive) is:
> >>
> >> ---
> >>   sound/soc/codecs/Kconfig |    2 +-
> >>   1 file changed, 1 insertion(+), 1 deletion(-)
> >>
> >> --- lnx-420-rc1.orig/sound/soc/codecs/Kconfig
> >> +++ lnx-420-rc1/sound/soc/codecs/Kconfig
> >> @@ -82,7 +82,7 @@ config SND_SOC_ALL_CODECS
> >>          select SND_SOC_ES7241
> >>          select SND_SOC_GTM601
> >>          select SND_SOC_HDAC_HDMI
> >> -       select SND_SOC_HDAC_HDA
> >> +       select SND_SOC_HDAC_HDA if PCI
> >>          select SND_SOC_ICS43432
> >>          select SND_SOC_INNO_RK3036
> >>          select SND_SOC_ISABELLE if I2C
> > I guess that will work. There are already plenty of "select foo if bar" lines.
> > However, looking at what else can enable SND_HDA, I think it should be
> >
> >      select SND_SOC_HDAC_HDA if SND_PCI || ARCH_TEGRA
>
> This codec can only be used by the Skylake driver (and the upcoming SOF
> one). For Tegra this module will never be used unless they follow the
> same path of enabling ASoC to deal with the HDaudio codecs instead of
> the legacy.
>
> Likewise HDAC_HDMI will only work on Intel platforms for now.
>
> >
> > That still leaves the issue that pci_iomap() on SH should be an empty stub if
> > PCI is not available, like on other architectures.
>
> I thought Mark Brown provided a fix to SH maintainers?

Indeed, https://patchwork.kernel.org/patch/10597409/

As usual, no response from the J^HSH maintainers :-(

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds