From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eugen Hristev Subject: [PATCH 1/3] Documentation: dt: iio: at91-sama5d2_adc: add optional dma property Date: Thu, 10 Aug 2017 15:34:57 +0300 Message-ID: <1502368499-6739-2-git-send-email-eugen.hristev@microchip.com> References: <1502368499-6739-1-git-send-email-eugen.hristev@microchip.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1502368499-6739-1-git-send-email-eugen.hristev@microchip.com> Sender: linux-kernel-owner@vger.kernel.org To: nicolas.ferre@microchip.com, ludovic.desroches@microchip.com, linux-iio@vger.kernel.org, jic23@kernel.org, alexandre.belloni@free-electrons.com, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, lars@metafoo.de Cc: eugen.hristev@microchip.com List-Id: devicetree@vger.kernel.org Added property for DMA configuration of the device. Signed-off-by: Eugen Hristev --- Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt b/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt index 552e7a8..5f94d47 100644 --- a/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt +++ b/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt @@ -17,6 +17,11 @@ Required properties: This property uses the IRQ edge types values: IRQ_TYPE_EDGE_RISING , IRQ_TYPE_EDGE_FALLING or IRQ_TYPE_EDGE_BOTH +Optional properties: + - dmas: Phandle to dma channel for the ADC. + See ../../dma/dma.txt for details. + - dma-names: Must be "rx" when dmas property is being used. + Example: adc: adc@fc030000 { @@ -31,4 +36,6 @@ adc: adc@fc030000 { vddana-supply = <&vdd_3v3_lp_reg>; vref-supply = <&vdd_3v3_lp_reg>; atmel,trigger-edge-type = ; + dmas = <&dma0 (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) | AT91_XDMAC_DT_PERID(25))>; + dma-names = "rx"; } -- 2.7.4