linux-kernel - [PATCH] ASoC: intel: fix unmet dependencies on GPIOLIB for SND_SOC_DMIC and SND_SOC

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Message-Id: <20220117045254.66037-1-julianbraha@gmail.com>
Date:   Sun, 16 Jan 2022 23:52:54 -0500
From:   Julian Braha <julianbraha@...il.com>
To:     broonie@...nel.org, cezary.rojewski@...el.com,
        pierre-louis.bossart@...ux.intel.com,
        liam.r.girdwood@...ux.intel.com, yang.jie@...ux.intel.com,
        perex@...ex.cz, tiwai@...e.com, brent.lu@...el.com,
        kai.vehmanen@...ux.intel.com, mac.chiang@...el.com
Cc:     alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        fazilyildiran@...il.com
Subject: [PATCH] ASoC: intel: fix unmet dependencies on GPIOLIB for SND_SOC_DMIC and SND_SOC_MAX98357A

When SND_SOC_INTEL_SOF_CS42L42_MACH is selected,
and GPIOLIB is not selected,
Kbuild gives the following warnings:

WARNING: unmet direct dependencies detected for SND_SOC_MAX98357A
  Depends on [n]: SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && GPIOLIB [=n]
  Selected by [y]:
  - SND_SOC_INTEL_SOF_CS42L42_MACH [=y] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_SOC_INTEL_MACH [=y] && (SND_SOC_SOF_HDA_LINK [=y] || SND_SOC_SOF_BAYTRAIL [=y]) && I2C [=y] && ACPI [=y] && SND_HDA_CODEC_HDMI [=y] && SND_SOC_SOF_HDA_AUDIO_CODEC [=y] && (MFD_INTEL_LPSS [=y] || COMPILE_TEST [=n])

WARNING: unmet direct dependencies detected for SND_SOC_DMIC
  Depends on [n]: SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && GPIOLIB [=n]
  Selected by [y]:
  - SND_SOC_INTEL_SOF_CS42L42_MACH [=y] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_SOC_INTEL_MACH [=y] && (SND_SOC_SOF_HDA_LINK [=y] || SND_SOC_SOF_BAYTRAIL [=y]) && I2C [=y] && ACPI [=y] && SND_HDA_CODEC_HDMI [=y] && SND_SOC_SOF_HDA_AUDIO_CODEC [=y] && (MFD_INTEL_LPSS [=y] || COMPILE_TEST [=n])

This is because SND_SOC_INTEL_SOF_CS42L42_MACH
selects SND_SOC_MAX98357A and SND_SOC_DMIC without
selecting or depending on GPIOLIB, despite these
config options depending on GPIOLIB.

These unmet dependency bugs were detected by Kismet,
a static analysis tool for Kconfig. Please advise
if this is not the appropriate solution.

Signed-off-by: Julian Braha <julianbraha@...il.com>
---
 sound/soc/intel/boards/Kconfig | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sound/soc/intel/boards/Kconfig b/sound/soc/intel/boards/Kconfig
index 34ccefcc30c7..6309a37789c7 100644
--- a/sound/soc/intel/boards/Kconfig
+++ b/sound/soc/intel/boards/Kconfig
@@ -279,6 +279,7 @@ endif ## SND_SOC_INTEL_SKL
 
 config SND_SOC_INTEL_DA7219_MAX98357A_GENERIC
 	tristate
+	depends on GPIOLIB
 	select SND_SOC_DA7219
 	select SND_SOC_MAX98357A
 	select SND_SOC_MAX98390
@@ -288,6 +289,7 @@ config SND_SOC_INTEL_DA7219_MAX98357A_GENERIC
 
 config SND_SOC_INTEL_BXT_DA7219_MAX98357A_COMMON
 	tristate
+	depends on GPIOLIB
 	select SND_SOC_INTEL_DA7219_MAX98357A_GENERIC
 
 if SND_SOC_INTEL_APL
@@ -485,7 +487,7 @@ config SND_SOC_INTEL_SOF_RT5682_MACH
 
 config SND_SOC_INTEL_SOF_CS42L42_MACH
 	tristate "SOF with cs42l42 codec in I2S Mode"
-	depends on I2C && ACPI
+	depends on I2C && ACPI && GPIOLIB
 	depends on ((SND_HDA_CODEC_HDMI && SND_SOC_SOF_HDA_AUDIO_CODEC) &&\
 		    (MFD_INTEL_LPSS || COMPILE_TEST))
 	select SND_SOC_CS42L42
-- 
2.32.0