From: James Hilliard <james.hilliard1@gmail.com>
To: "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Jiri Slaby" <jirislaby@kernel.org>,
"Rob Herring" <robh@kernel.org>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Andy Shevchenko" <andriy.shevchenko@linux.intel.com>,
"Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>,
"Chen-Yu Tsai" <wens@kernel.org>,
"Jernej Skrabec" <jernej.skrabec@gmail.com>,
"Samuel Holland" <samuel@sholland.org>
Cc: linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org,
devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-sunxi@lists.linux.dev,
James Hilliard <james.hilliard1@gmail.com>
Subject: [PATCH 3/3] arm64: dts: allwinner: h616: identify the UART integration
Date: Fri, 23 Oct 2026 01:33:51 -0600 [thread overview]
Message-ID: <20261023-submit-h616-uart-fifo-v1-v1-3-e4a3bae2eba8@gmail.com> (raw)
In-Reply-To: <20261023-submit-h616-uart-fifo-v1-v1-0-e4a3bae2eba8@gmail.com>
Use the H616 UART compatible for all six controllers so the driver can
select their fixed 256-byte FIFO configuration and register layout.
Retain the generic DesignWare compatible as a fallback for older kernels.
Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
---
arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
index 1598e86259ab..6905c9eaa249 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
@@ -538,7 +538,7 @@ mmc2: mmc@4022000 {
};
uart0: serial@5000000 {
- compatible = "snps,dw-apb-uart";
+ compatible = "allwinner,sun50i-h616-uart", "snps,dw-apb-uart";
reg = <0x05000000 0x400>;
interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
@@ -551,7 +551,7 @@ uart0: serial@5000000 {
};
uart1: serial@5000400 {
- compatible = "snps,dw-apb-uart";
+ compatible = "allwinner,sun50i-h616-uart", "snps,dw-apb-uart";
reg = <0x05000400 0x400>;
interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
@@ -564,7 +564,7 @@ uart1: serial@5000400 {
};
uart2: serial@5000800 {
- compatible = "snps,dw-apb-uart";
+ compatible = "allwinner,sun50i-h616-uart", "snps,dw-apb-uart";
reg = <0x05000800 0x400>;
interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
@@ -577,7 +577,7 @@ uart2: serial@5000800 {
};
uart3: serial@5000c00 {
- compatible = "snps,dw-apb-uart";
+ compatible = "allwinner,sun50i-h616-uart", "snps,dw-apb-uart";
reg = <0x05000c00 0x400>;
interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
@@ -590,7 +590,7 @@ uart3: serial@5000c00 {
};
uart4: serial@5001000 {
- compatible = "snps,dw-apb-uart";
+ compatible = "allwinner,sun50i-h616-uart", "snps,dw-apb-uart";
reg = <0x05001000 0x400>;
interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
@@ -603,7 +603,7 @@ uart4: serial@5001000 {
};
uart5: serial@5001400 {
- compatible = "snps,dw-apb-uart";
+ compatible = "allwinner,sun50i-h616-uart", "snps,dw-apb-uart";
reg = <0x05001400 0x400>;
interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
--
2.53.0
prev parent reply other threads:[~2026-10-23 7:34 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-23 7:33 [PATCH 0/3] serial: 8250_dw: describe the Allwinner H616 UART configuration James Hilliard
2026-10-23 7:33 ` [PATCH 1/3] dt-bindings: serial: snps-dw-apb-uart: add Allwinner H616 James Hilliard
2026-10-23 7:33 ` [PATCH 2/3] serial: 8250_dw: configure the Allwinner H616 UART James Hilliard
2026-10-23 8:44 ` Andy Shevchenko
2026-10-23 7:33 ` James Hilliard [this message]
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