[PATCH] mfd/ASoC: WM8400: select SND_SOC_WM8400 from MFD_WM8400
From: Piyush Patle
Date: Sun Mar 15 2026 - 16:21:39 EST
The MFD driver wm8400-core.c unconditionally registers a platform
device named 'wm8400-codec' via wm8400_register_codec(). The codec
driver in sound/soc/codecs/wm8400.c binds to this device by name,
but SND_SOC_WM8400 is a hidden symbol with no prompt and nothing
was selecting it in normal configurations, so the driver never built.
Fix this by adding 'select SND_SOC_WM8400' to MFD_WM8400, which
encodes the implicit dependency that already existed at runtime.
Also remove the FIXME comment that noted this gap.
Signed-off-by: Piyush Patle <piyushpatle228@xxxxxxxxx>
---
drivers/mfd/Kconfig | 1 +
sound/soc/codecs/Kconfig | 1 -
2 files changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 7192c9d1d268..d931612e0468 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -2127,6 +2127,7 @@ config MFD_WM8400
select MFD_CORE
depends on I2C=y
select REGMAP_I2C
+ select SND_SOC_WM8400
help
Support for the Wolfson Microelecronics WM8400 PMIC and audio
CODEC. This driver provides common support for accessing
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index adb3fb923be3..0e912f6ec89c 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -2496,7 +2496,6 @@ config SND_SOC_WM8350
config SND_SOC_WM8400
tristate
- # FIXME nothing selects SND_SOC_WM8400??
depends on MFD_WM8400
config SND_SOC_WM8510
--
2.34.1