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authorMartin Blumenstingl <martin.blumenstingl@googlemail.com>2021-06-04 19:08:44 +0200
committerNeil Armstrong <narmstrong@baylibre.com>2021-06-14 10:00:50 +0200
commit7db3cde5123e2acdd65ff7458628a9835c804b27 (patch)
tree5c83eef69706a2402465d3f7f3129964a36b6978
parentLinux 5.13-rc1 (diff)
downloadlinux-7db3cde5123e2acdd65ff7458628a9835c804b27.tar.xz
linux-7db3cde5123e2acdd65ff7458628a9835c804b27.zip
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 <martin.blumenstingl@googlemail.com> Acked-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Link: https://lore.kernel.org/r/20210604170844.2201229-1-martin.blumenstingl@googlemail.com
-rw-r--r--arch/arm/boot/dts/meson.dtsi1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi
index 8bae6ed0abb2..bd0e864964e9 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 = <GIC_SPI 26 IRQ_TYPE_EDGE_RISING>;
+ fifo-size = <128>;
status = "disabled";
};