From: Martin Blumenstingl Date: Fri, 4 Jun 2021 17:08:44 +0000 (+0200) Subject: ARM: dts: meson: Set the fifo-size of uart_A to 128 bytes X-Git-Tag: accepted/tizen/unified/20230118.172025~6845^2~10^2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7db3cde5123e2acdd65ff7458628a9835c804b27;p=platform%2Fkernel%2Flinux-rpi.git ARM: dts: meson: Set the fifo-size of uart_A to 128 bytes The first UART controller in the "Everything-Else" power domain is called uart_A. Unlike all other UARTs (which use a 64 byte fifo-size in hardware) uart_A has a fifo-size of 128 bytes. This UART controller is typically used for Bluetooth HCI. The fifo-size of 128 bytes is valid from all SoCs from Meson6 (or possibly even earlier) all the way up to the latest 64-bit ones. Signed-off-by: Martin Blumenstingl Acked-by: Neil Armstrong Signed-off-by: Neil Armstrong Link: https://lore.kernel.org/r/20210604170844.2201229-1-martin.blumenstingl@googlemail.com --- diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi index 8bae6ed..bd0e864 100644 --- a/arch/arm/boot/dts/meson.dtsi +++ b/arch/arm/boot/dts/meson.dtsi @@ -50,6 +50,7 @@ compatible = "amlogic,meson6-uart", "amlogic,meson-uart"; reg = <0x84c0 0x18>; interrupts = ; + fifo-size = <128>; status = "disabled"; };