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ANDROID: GKI: Enable CONFIG_SERIAL_8250_RUNTIME_UARTS=0

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8250_core registers 4 ISA uart ports by default, which can cause
problems on some devices which don't have them. This change doesn't
break earlycon=uart8250, but it will cause the 8250_of and 8250_pci sub
drivers to be unable to register ports. Boards that really need the full
8250 driver to take over from earlycon can use the "8250.nr_uarts=X"
kernel command line option to restore the ports allocation.

Bug: 216312411
Signed-off-by: Alistair Delva <adelva@google.com>
Change-Id: I04715394b32bd98544657101de4537df34554ea9
This commit is contained in:
Alistair Delva
2022-02-10 11:20:10 -08:00
parent ad03707057
commit 727bc3e38a
2 changed files with 2 additions and 0 deletions
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1
arch/arm64/configs/gki_defconfig
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@@ -371,6 +371,7 @@ CONFIG_SERIAL_8250=y
# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
CONFIG_SERIAL_8250_CONSOLE=y
# CONFIG_SERIAL_8250_EXAR is not set
CONFIG_SERIAL_8250_RUNTIME_UARTS=0
CONFIG_SERIAL_8250_DW=y
CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_SERIAL_AMBA_PL011=y

1
arch/x86/configs/gki_defconfig
View File

@@ -342,6 +342,7 @@ CONFIG_INPUT_UINPUT=y
CONFIG_SERIAL_8250=y
# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_RUNTIME_UARTS=0
CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_SERIAL_SAMSUNG=y
CONFIG_SERIAL_SAMSUNG_CONSOLE=y