From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755227AbdJIQKX (ORCPT ); Mon, 9 Oct 2017 12:10:23 -0400 Received: from esa3.microchip.iphmx.com ([68.232.153.233]:21180 "EHLO esa3.microchip.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755194AbdJIQKU (ORCPT ); Mon, 9 Oct 2017 12:10:20 -0400 X-IronPort-AV: E=Sophos;i="5.42,500,1500966000"; d="scan'208";a="7771969" From: Claudiu Beznea To: , , , , CC: , , , Claudiu Beznea Subject: [PATCH 15/15] ARM: dts: at91: at91sam9x5ek: use DMA for USART0 Date: Mon, 9 Oct 2017 19:09:37 +0300 Message-ID: <1507565377-1545-16-git-send-email-claudiu.beznea@microchip.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1507565377-1545-1-git-send-email-claudiu.beznea@microchip.com> References: <1507565377-1545-1-git-send-email-claudiu.beznea@microchip.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use DMA for USART0 (which is used as ttyS1) as we have enough channels and to show how to specify DMA use with serial nodes. Signed-off-by: Nicolas Ferre Signed-off-by: Claudiu Beznea --- arch/arm/boot/dts/at91sam9x5ek.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/at91sam9x5ek.dtsi b/arch/arm/boot/dts/at91sam9x5ek.dtsi index 9d2bbc41a7b0..a85eb51e6aa8 100644 --- a/arch/arm/boot/dts/at91sam9x5ek.dtsi +++ b/arch/arm/boot/dts/at91sam9x5ek.dtsi @@ -50,6 +50,8 @@ }; usart0: serial@f801c000 { + atmel,use-dma-rx; + atmel,use-dma-tx; status = "okay"; }; -- 2.7.4