[PATCH] mfd: cs42l43: Fix Kconfig dependency

[Woody Zhang]

MFD_CS42L43 depends on REGMAP_IRQ as it uses devm_regmap_add_irq_chip.
Otherwise the build may fail with following log.

  AR      drivers/built-in.a
  AR      built-in.a
  AR      vmlinux.a
  LD      vmlinux.o
  OBJCOPY modules.builtin.modinfo
  GEN     modules.builtin
  MODPOST Module.symvers
ERROR: modpost: "devm_regmap_add_irq_chip" [drivers/mfd/cs42l43.ko] undefined!

Fixes: ace6d1448138 ("mfd: cs42l43: Add support for cs42l43 core driver")
Signed-off-by: Woody Zhang <woodylab@xxxxxxxxxxx>
---
 drivers/mfd/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index aea95745c73f..90ce58fd629e 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -241,6 +241,7 @@ config MFD_CS42L43
 	tristate
 	select MFD_CORE
 	select REGMAP
+	select REGMAP_IRQ
 
 config MFD_CS42L43_I2C
 	tristate "Cirrus Logic CS42L43 (I2C)"
-- 
2.39.2