linux-kernel - [PATCH] ASoC: tas2781: fix Kconfig dependencies

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Message-Id: <20230622101205.3180938-1-arnd@kernel.org>
Date:   Thu, 22 Jun 2023 12:11:23 +0200
From:   Arnd Bergmann <arnd@...nel.org>
To:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>
Cc:     Arnd Bergmann <arnd@...db.de>, Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Richard Fitzgerald <rf@...nsource.cirrus.com>,
        Shenghao Ding <13916275206@....com>,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: [PATCH] ASoC: tas2781: fix Kconfig dependencies

From: Arnd Bergmann <arnd@...db.de>

The new driver has two modules that both get enabled for build testing
when all codecs are selected. The comlib part has an i2c dependency,
so this remains disabled on builds without i2c, but then the other
one fails to link:

ERROR: modpost: "tasdevice_dev_bulk_write" [sound/soc/codecs/snd-soc-tas2781-fmwlib.ko] undefined!
ERROR: modpost: "tasdevice_dev_update_bits" [sound/soc/codecs/snd-soc-tas2781-fmwlib.ko] undefined!
ERROR: modpost: "tasdevice_dev_bulk_read" [sound/soc/codecs/snd-soc-tas2781-fmwlib.ko] undefined!
ERROR: modpost: "tasdevice_dev_read" [sound/soc/codecs/snd-soc-tas2781-fmwlib.ko] undefined!
ERROR: modpost: "tasdevice_dev_write" [sound/soc/codecs/snd-soc-tas2781-fmwlib.ko] undefined!

There are many ways to address this, adding an explicit dependency seems
to be the clearest method that keeps the structure of the driver otherwise
unchanged.

Fixes: ef3bcde75d06d ("ASoC: tas2781: Add tas2781 driver")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 sound/soc/codecs/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index f481f02a35710..2a62dbd5339e4 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -1741,6 +1741,7 @@ config SND_SOC_TAS2781_COMLIB
 	tristate

 config SND_SOC_TAS2781_FMWLIB
+	depends on SND_SOC_TAS2781_COMLIB
 	tristate
 	default n

-- 
2.39.2