xen/char: default HAS_NS16550 to y only for X86 and ARM

Defaulting to yes only for X86 and ARM reduces the requirements
for a minimal build when porting new architectures.

Signed-off-by: Connor Davis <connojdavis@gmail.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>

diff --git a/xen/drivers/char/Kconfig b/xen/drivers/char/Kconfig
index b57230565751ef760879c0bc2c31a3ed214065e4..2ff5b288e2a5e4c3dae99531d353ad49fdc13655 100644 (file)
--- a/xen/drivers/char/Kconfig
+++ b/xen/drivers/char/Kconfig
@@ -1,5 +1,6 @@
 config HAS_NS16550
        bool "NS16550 UART driver" if ARM
+       default n if RISCV
        default y
        help
          This selects the 16550-series UART support. For most systems, say Y.