[PATCH] ASoC: improve RT5514 dependencies

[PATCH] ASoC: improve RT5514 dependencies

[Arnd Bergmann]

With SND_SOC_RT5514_SPI=m and SND_SOC_RT5514=y, we get this link error:

sound/soc/codecs/rt5514.o: In function `rt5514_dsp_voice_wake_up_put':
rt5514.c:(.text+0x2068): undefined reference to `rt5514_spi_burst_write'
rt5514.c:(.text+0x20c8): undefined reference to `rt5514_spi_burst_write'

This adds another Kconfig symbol to work around the link error, forcing
the main driver to be a loadable module as well if some other driver
selects the I2C side to be built-in.

Fixes: 2a18483a7fb4 ("ASoC: Intel: Add Kabylake machine driver for RT5514, RT5663 and MAX98927")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
This can now lead to a configuration with
SND_SOC_INTEL_KBL_RT5663_RT5514_MAX98927_MACH=y and SND_SOC_RT5514=m. I
don't know if that is a problem or not.

An alternative approach would be to flip the dependency between
rt5514_spi.ko and rt5514.ko and avoid having the rt5514_spi_burst_write
symbol exported.
---
 sound/soc/codecs/Kconfig   | 7 ++++++-
 sound/soc/intel/Kconfig    | 2 +-
 sound/soc/mediatek/Kconfig | 2 +-
 sound/soc/rockchip/Kconfig | 1 -
 4 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 024ddc9938ed..115c6144ca2a 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -117,7 +117,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_RT274 if I2C
 	select SND_SOC_RT286 if I2C
 	select SND_SOC_RT298 if I2C
-	select SND_SOC_RT5514 if I2C
+	select SND_SOC_RT5514_I2C if I2C
 	select SND_SOC_RT5616 if I2C
 	select SND_SOC_RT5631 if I2C
 	select SND_SOC_RT5640 if I2C
@@ -738,6 +738,11 @@ config SND_SOC_RT298
 
 config SND_SOC_RT5514
 	tristate
+	default m if SND_SOC_RT5514_SPI=m
+	default SND_SOC_RT5514_I2C || SND_SOC_RT5514_SPI
+
+config SND_SOC_RT5514_I2C
+	tristate
 
 config SND_SOC_RT5514_SPI
 	tristate
diff --git a/sound/soc/intel/Kconfig b/sound/soc/intel/Kconfig
index b301bfff1c09..f5ef912190ed 100644
--- a/sound/soc/intel/Kconfig
+++ b/sound/soc/intel/Kconfig
@@ -259,7 +259,7 @@ config SND_SOC_INTEL_KBL_RT5663_RT5514_MAX98927_MACH
         select SND_SOC_INTEL_SST
         select SND_SOC_INTEL_SKYLAKE
         select SND_SOC_RT5663
-        select SND_SOC_RT5514
+        select SND_SOC_RT5514_I2C
         select SND_SOC_MAX98927
         select SND_SOC_HDAC_HDMI
         help
diff --git a/sound/soc/mediatek/Kconfig b/sound/soc/mediatek/Kconfig
index 5c68797f36c4..6ccf73ae77ca 100644
--- a/sound/soc/mediatek/Kconfig
+++ b/sound/soc/mediatek/Kconfig
@@ -67,7 +67,7 @@ config SND_SOC_MT8173_RT5650_RT5514
 	tristate "ASoC Audio driver for MT8173 with RT5650 RT5514 codecs"
 	depends on SND_SOC_MT8173 && I2C
 	select SND_SOC_RT5645
-	select SND_SOC_RT5514
+	select SND_SOC_RT5514_I2C
 	help
 	  This adds ASoC driver for Mediatek MT8173 boards
 	  with the RT5650 and RT5514 codecs.
diff --git a/sound/soc/rockchip/Kconfig b/sound/soc/rockchip/Kconfig
index c84487805876..c1139aecdfbe 100644
--- a/sound/soc/rockchip/Kconfig
+++ b/sound/soc/rockchip/Kconfig
@@ -65,7 +65,6 @@ config SND_SOC_RK3399_GRU_SOUND
 	depends on SND_SOC_ROCKCHIP && I2C && GPIOLIB && CLKDEV_LOOKUP && SPI
 	select SND_SOC_ROCKCHIP_I2S
 	select SND_SOC_MAX98357A
-	select SND_SOC_RT5514
 	select SND_SOC_DA7219
 	select SND_SOC_RT5514_SPI
 	help
-- 
2.9.0

Re: [PATCH] ASoC: improve RT5514 dependencies

[Takashi Iwai]

On Mon, 31 Jul 2017 10:30:55 +0200,
Arnd Bergmann wrote:
> 
> With SND_SOC_RT5514_SPI=m and SND_SOC_RT5514=y, we get this link error:
> 
> sound/soc/codecs/rt5514.o: In function `rt5514_dsp_voice_wake_up_put':
> rt5514.c:(.text+0x2068): undefined reference to `rt5514_spi_burst_write'
> rt5514.c:(.text+0x20c8): undefined reference to `rt5514_spi_burst_write'
> 
> This adds another Kconfig symbol to work around the link error, forcing
> the main driver to be a loadable module as well if some other driver
> selects the I2C side to be built-in.
> 
> Fixes: 2a18483a7fb4 ("ASoC: Intel: Add Kabylake machine driver for RT5514, RT5663 and MAX98927")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
> This can now lead to a configuration with
> SND_SOC_INTEL_KBL_RT5663_RT5514_MAX98927_MACH=y and SND_SOC_RT5514=m. I
> don't know if that is a problem or not.
> 
> An alternative approach would be to flip the dependency between
> rt5514_spi.ko and rt5514.ko and avoid having the rt5514_spi_burst_write
> symbol exported.

The current usage of 
  #if defined(CONFIG_SND_SOC_RT5514_SPI)
in rt5514_dsp_voice_wake_up_put() is already broken.  We need the fix
in anyway.

IMO, flipping the dependency looks saner to me.  The SPI function call
is a kind of add-on, after all.


thanks,

Takashi

Re: [PATCH] ASoC: improve RT5514 dependencies

[Arnd Bergmann]

On Mon, Jul 31, 2017 at 11:15 AM, Takashi Iwai <tiwai@suse.de> wrote:
> On Mon, 31 Jul 2017 10:30:55 +0200,
> Arnd Bergmann wrote:
>>
>> With SND_SOC_RT5514_SPI=m and SND_SOC_RT5514=y, we get this link error:
>>
>> sound/soc/codecs/rt5514.o: In function `rt5514_dsp_voice_wake_up_put':
>> rt5514.c:(.text+0x2068): undefined reference to `rt5514_spi_burst_write'
>> rt5514.c:(.text+0x20c8): undefined reference to `rt5514_spi_burst_write'
>>
>> This adds another Kconfig symbol to work around the link error, forcing
>> the main driver to be a loadable module as well if some other driver
>> selects the I2C side to be built-in.
>>
>> Fixes: 2a18483a7fb4 ("ASoC: Intel: Add Kabylake machine driver for RT5514, RT5663 and MAX98927")
>> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
>> ---
>> This can now lead to a configuration with
>> SND_SOC_INTEL_KBL_RT5663_RT5514_MAX98927_MACH=y and SND_SOC_RT5514=m. I
>> don't know if that is a problem or not.
>>
>> An alternative approach would be to flip the dependency between
>> rt5514_spi.ko and rt5514.ko and avoid having the rt5514_spi_burst_write
>> symbol exported.
>
> The current usage of
>   #if defined(CONFIG_SND_SOC_RT5514_SPI)
> in rt5514_dsp_voice_wake_up_put() is already broken.  We need the fix
> in anyway.
>
> IMO, flipping the dependency looks saner to me.  The SPI function call
> is a kind of add-on, after all.

Ok. I'll leave that up to the maintainers of the codec driver then.

        Arnd

Re: [PATCH] ASoC: improve RT5514 dependencies

[Mark Brown]

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On Mon, Jul 31, 2017 at 11:15:57AM +0200, Takashi Iwai wrote:

> IMO, flipping the dependency looks saner to me.  The SPI function call
> is a kind of add-on, after all.

Yes, that's definitely the intention of the code.

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Re: [PATCH] ASoC: improve RT5514 dependencies

[Arnd Bergmann]

On Tue, Aug 1, 2017 at 4:21 PM, Mark Brown <broonie@kernel.org> wrote:
> On Mon, Jul 31, 2017 at 11:15:57AM +0200, Takashi Iwai wrote:
>
>> IMO, flipping the dependency looks saner to me.  The SPI function call
>> is a kind of add-on, after all.
>
> Yes, that's definitely the intention of the code.

I just ran into the same problem again on randconfig testing, after
the bug had been
gone before my vacation:

    sound/soc/codecs/rt5514.o: In function `rt5514_dsp_voice_wake_up_put':
    rt5514.c:(.text+0x2068): undefined reference to `rt5514_spi_burst_write'
    rt5514.c:(.text+0x20c8): undefined reference to `rt5514_spi_burst_write'

Is anyone looking into this? My original patch
(https://patchwork.kernel.org/patch/9871255/) still fixes it but needs a
minor change to apply now. When I last looked into changing
the dependency in the code, I couldn't quite figure out how to
do it there.

         Arnd