[PATCH] mips: econet: fix unmet dependencies for ECONET

[Julian Braha <julianbraha@gmail.com>]

ECONET selects EARLY_PRINTK_8250, SERIAL_OF_PLATFORM, and SERIAL_8250
without ensuring their dependencies, EARLY_PRINTK and TTY are met. This
causes unmet dependencies:

WARNING: unmet direct dependencies detected for SERIAL_8250
  Depends on [n]: TTY [=n] && HAS_IOMEM [=y] && !S390
  Selected by [y]:
  - ECONET [=y]

WARNING: unmet direct dependencies detected for EARLY_PRINTK_8250
  Depends on [n]: EARLY_PRINTK [=n] && USE_GENERIC_EARLY_PRINTK_8250 [=y]
  Selected by [y]:
  - ECONET [=y]

WARNING: unmet direct dependencies detected for SERIAL_OF_PLATFORM
  Depends on [n]: TTY [=n] && HAS_IOMEM [=y] && SERIAL_8250 [=y] && OF [=y]
  Selected by [y]:
  - ECONET [=y]

Let's select the necessary dependencies, TTY and EARLY_PRINTK, as other
similar architecture options do.

These unmet dependencies were found by kconfirm, a static analysis tool for
Kconfig.

Fixes: 79ee1d20e37c ("mips: econet: Fix incorrect Kconfig dependencies")
Fixes: 35fb26f94dfa ("mips: Add EcoNet MIPS platform support")
Signed-off-by: Julian Braha <julianbraha@gmail.com>
---
 arch/mips/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index a06f24317306..2423a6050088 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -397,8 +397,10 @@ config ECONET
 	select BOOT_RAW
 	select CPU_BIG_ENDIAN
 	select DEBUG_ZBOOT if DEBUG_KERNEL
+	select EARLY_PRINTK
 	select EARLY_PRINTK_8250
 	select ECONET_EN751221_TIMER
+	select TTY
 	select SERIAL_8250
 	select SERIAL_OF_PLATFORM
 	select SYS_SUPPORTS_BIG_ENDIAN
-- 
2.55.0