linux-kernel - [PATCH 3/3] arm64: dts: meson: set 128bytes FIFO size on uart A

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Message-Id: <20210315083459.359773-4-narmstrong@baylibre.com>
Date:   Mon, 15 Mar 2021 09:34:59 +0100
From:   Neil Armstrong <narmstrong@...libre.com>
To:     gregkh@...uxfoundation.org
Cc:     devicetree@...r.kernel.org, linux-serial@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Neil Armstrong <narmstrong@...libre.com>
Subject: [PATCH 3/3] arm64: dts: meson: set 128bytes FIFO size on uart A

The first UART controller in "Everything-Else" power domain, usually used
for Bluetooth HCI has 128bytes FIFO depth.

Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
---
 arch/arm64/boot/dts/amlogic/meson-axg.dtsi        | 1 +
 arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi | 1 +
 arch/arm64/boot/dts/amlogic/meson-gx.dtsi         | 1 +
 3 files changed, 3 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
index d945c84ab697..571383c12855 100644
--- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
@@ -1872,6 +1872,7 @@ uart_A: serial@...00 {
 				status = "disabled";
 				clocks = <&xtal>, <&clkc CLKID_UART0>, <&xtal>;
 				clock-names = "xtal", "pclk", "baud";
+				amlogic,uart-fifosize = <128>;
 			};
 		};
 
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
index b858c5e43cc8..9e898479f118 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
@@ -2311,6 +2311,7 @@ uart_A: serial@...00 {
 				clocks = <&xtal>, <&clkc CLKID_UART0>, <&xtal>;
 				clock-names = "xtal", "pclk", "baud";
 				status = "disabled";
+				amlogic,uart-fifosize = <128>;
 			};
 		};
 
diff --git a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
index 0edd137151f8..bd0b049787fd 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
@@ -295,6 +295,7 @@ uart_A: serial@...0 {
 				reg = <0x0 0x84c0 0x0 0x18>;
 				interrupts = <GIC_SPI 26 IRQ_TYPE_EDGE_RISING>;
 				status = "disabled";
+				amlogic,uart-fifosize = <128>;
 			};
 
 			uart_B: serial@...c {
-- 
2.25.1