[PATCH] arm64: defconfig: Increase SERIAL_8250_NR_UARTS to 10

[Heiko Stuebner]

From: Heiko Stuebner <heiko.stuebner at cherry.de>

Boards using socs like the rk3588 can use up to 10 uarts, so the default
of 4 is way too low. Therefore increase the maximum number to 10.

SERIAL_8250_RUNTIME_UARTS on the other hand describes the number of uart
data structures to prepare before registering them. This option can stay
at its default value of 4 since for one it can be changed via a boot
parameter 8250.nr_uarts but also since
commit 9d86719f8769 ("serial: 8250: Allow using ports higher than SERIAL_8250_RUNTIME_UARTS")

the kernel can register uarts dynamically that are above the
SERIAL_8250_RUNTIME_UARTS threshold.

Signed-off-by: Heiko Stuebner <heiko.stuebner at cherry.de>
---
 arch/arm64/configs/defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index b60aa1f89343..69835dc43d24 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -448,6 +448,7 @@ CONFIG_SERIO_AMBAKMI=y
 CONFIG_LEGACY_PTY_COUNT=16
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_NR_UARTS=10
 CONFIG_SERIAL_8250_EXTENDED=y
 CONFIG_SERIAL_8250_SHARE_IRQ=y
 CONFIG_SERIAL_8250_BCM2835AUX=y
-- 
2.39.2