[PATCH] soundwire: add back ACPI dependency

[Arnd Bergmann]

Soundwire gained a warning for randconfig builds without
CONFIG_ACPI during the linux-5.3-rc cycle:

drivers/soundwire/slave.c:16:12: error: unused function 'sdw_slave_add' [-Werror,-Wunused-function]

Add the CONFIG_ACPI dependency at the top level now.

Fixes: 8676b3ca4673 ("soundwire: fix regmap dependencies and align with other serial links")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
 drivers/soundwire/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/soundwire/Kconfig b/drivers/soundwire/Kconfig
index f518273cfbe3..c73bfbaa2659 100644
--- a/drivers/soundwire/Kconfig
+++ b/drivers/soundwire/Kconfig
@@ -5,6 +5,7 @@
 
 menuconfig SOUNDWIRE
 	tristate "SoundWire support"
+	depends on ACPI
 	help
 	  SoundWire is a 2-Pin interface with data and clock line ratified
 	  by the MIPI Alliance. SoundWire is used for transporting data
-- 
2.20.0