From mboxrd@z Thu Jan 1 00:00:00 1970 From: Esben Haabendal Subject: [PATCH v3 3/3] arm: dts: ls1021a: Enable I2C DMA support Date: Thu, 9 Aug 2018 14:32:07 +0200 Message-ID: <20180809123207.9732-4-esben.haabendal@gmail.com> References: <20180809123207.9732-1-esben.haabendal@gmail.com> Return-path: In-Reply-To: <20180809123207.9732-1-esben.haabendal@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: linux-i2c@vger.kernel.org Cc: Esben Haabendal , Shawn Guo , kernel@pengutronix.de, NXP Linux Team , Rob Herring , Mark Rutland , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: devicetree@vger.kernel.org From: Esben Haabendal Gives substantial performance improvement for transfers larger than 16 bytes (DMA_THRESHOLD). Smaller transfers are unaffected. Signed-off-by: Esben Haabendal --- arch/arm/boot/dts/ls1021a.dtsi | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm/boot/dts/ls1021a.dtsi b/arch/arm/boot/dts/ls1021a.dtsi index c55d479971cc..1e5640701c65 100644 --- a/arch/arm/boot/dts/ls1021a.dtsi +++ b/arch/arm/boot/dts/ls1021a.dtsi @@ -363,6 +363,8 @@ interrupts = ; clock-names = "i2c"; clocks = <&clockgen 4 1>; + dma-names = "tx", "rx"; + dmas = <&edma0 1 39>, <&edma0 1 38>; status = "disabled"; }; @@ -374,6 +376,8 @@ interrupts = ; clock-names = "i2c"; clocks = <&clockgen 4 1>; + dma-names = "tx", "rx"; + dmas = <&edma0 1 37>, <&edma0 1 36>; status = "disabled"; }; @@ -385,6 +389,8 @@ interrupts = ; clock-names = "i2c"; clocks = <&clockgen 4 1>; + dma-names = "tx", "rx"; + dmas = <&edma0 1 35>, <&edma0 1 34>; status = "disabled"; }; -- 2.18.0