linux-kernel - [PATCH] ARM: dts: at91: Enable DMA on sama5d2

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Message-Id: <20170119220539.19011-1-alexandre.belloni@free-electrons.com>
Date:   Thu, 19 Jan 2017 23:05:39 +0100
From:   Alexandre Belloni <alexandre.belloni@...e-electrons.com>
To:     Nicolas Ferre <nicolas.ferre@...el.com>
Cc:     Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
        Kevin Hilman <khilman@...libre.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
        "stable #v4 . 3+" <stable@...r.kernel.org>
Subject: [PATCH] ARM: dts: at91: Enable DMA on sama5d2_xplained console

Enable DMA on uart1 to get a more reliable console.

Cc: stable <stable@...r.kernel.org> #v4.3+
Signed-off-by: Alexandre Belloni <alexandre.belloni@...e-electrons.com>
---
 arch/arm/boot/dts/at91-sama5d2_xplained.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/at91-sama5d2_xplained.dts b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
index 0b9a59d5fdac..30fac04289a5 100644
--- a/arch/arm/boot/dts/at91-sama5d2_xplained.dts
+++ b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
@@ -148,6 +148,8 @@
 			uart1: serial@...20000 {
 				pinctrl-names = "default";
 				pinctrl-0 = <&pinctrl_uart1_default>;
+				atmel,use-dma-rx;
+				atmel,use-dma-tx;
 				status = "okay";
 			};
 
-- 
2.11.0