ANDROID: GKI: Enable SERIAL_8250_DW
Enable support for designware quirks in the 8250 driver. This could be
built as a module, but if the 8250 earlycon driver is being used, doing
so causes problems at boot. When clk_unused_disable() disables the uart
clocks while the earlycon driver is using them, but before the full
driver loads to take over the clocks, the device will reboot.
This adds a relatively small amount of code to GKI so it should be
harmless, at least until a way is found to split the 8250 earlycon
support from the full driver.
Bug: 183963484
Change-Id: I6e54dfce347f546e954703af083a9c55cf2ddd88
Signed-off-by: Alistair Delva <adelva@google.com>
(cherry picked from commit 2c5e03c769614cd2a98e3bc22664b8766bc2b4c7)
Signed-off-by: Yongqin Liu <yongqin.liu@linaro.org>
diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index babcca3..0a6b52d 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -340,6 +340,7 @@
# CONFIG_SERIAL_8250_EXAR is not set
CONFIG_SERIAL_8250_NR_UARTS=32
CONFIG_SERIAL_8250_RUNTIME_UARTS=0
+CONFIG_SERIAL_8250_DW=y
CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_SERIAL_AMBA_PL011=y
CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
index 4ad7b8d..74b2ddb 100644
--- a/arch/x86/configs/gki_defconfig
+++ b/arch/x86/configs/gki_defconfig
@@ -309,6 +309,7 @@
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_NR_UARTS=32
CONFIG_SERIAL_8250_RUNTIME_UARTS=0
+CONFIG_SERIAL_8250_DW=y
CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_SERIAL_DEV_BUS=y
CONFIG_HW_RANDOM=y
