linux-kernel - [PATCH 3/5] ARM: dts: microchip: sama7d65: add dma properties to usart6

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Message-ID: <20260102170135.70717-4-nicolas.ferre@microchip.com>
Date: Fri, 2 Jan 2026 18:01:32 +0100
From: <nicolas.ferre@...rochip.com>
To: <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>
CC: Alexandre Belloni <alexandre.belloni@...tlin.com>, Claudiu Beznea
	<claudiu.beznea@...on.dev>, Balamanikandan Gunasundar
	<balamanikandan.gunasundar@...rochip.com>, Ryan Wanner
	<ryan.wanner@...rochip.com>, Conor Dooley <conor.dooley@...rochip.com>,
	Nicolas Ferre <nicolas.ferre@...rochip.com>
Subject: [PATCH 3/5] ARM: dts: microchip: sama7d65: add dma properties to usart6

From: Nicolas Ferre <nicolas.ferre@...rochip.com>

Add the dma property and associated dma activation for usart6 as part of
flx6 node.
Is useful for usual default console on this product.

Signed-off-by: Nicolas Ferre <nicolas.ferre@...rochip.com>
---
 arch/arm/boot/dts/microchip/sama7d65.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/microchip/sama7d65.dtsi b/arch/arm/boot/dts/microchip/sama7d65.dtsi
index 868045c650a7..92d92228f0a5 100644
--- a/arch/arm/boot/dts/microchip/sama7d65.dtsi
+++ b/arch/arm/boot/dts/microchip/sama7d65.dtsi
@@ -617,6 +617,11 @@ uart6: serial@200 {
 				interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&pmc PMC_TYPE_PERIPHERAL 40>;
 				clock-names = "usart";
+				dmas = <&dma1 AT91_XDMAC_DT_PERID(18)>,
+				       <&dma1 AT91_XDMAC_DT_PERID(17)>;
+				dma-names = "tx", "rx";
+				atmel,use-dma-rx;
+				atmel,use-dma-tx;
 				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
 				atmel,fifo-size = <32>;
 				status = "disabled";
-- 
2.43.0