From mboxrd@z Thu Jan 1 00:00:00 1970 From: Baolin Wang Subject: [PATCH v2 2/3] dt-bindings: spi: Add the DMA properties for the SPI dma mode Date: Wed, 13 Feb 2019 15:36:10 +0800 Message-ID: <2be9d6de92507e5886433fb2cd55117c63b63d72.1550043082.git.baolin.wang@linaro.org> References: <11e55b5f9b0d83649a5b81c7e3fdb667cd3ddc5b.1550043082.git.baolin.wang@linaro.org> Cc: orsonzhai@gmail.com, zhang.lyra@gmail.com, lanqing.liu@unisoc.com, baolin.wang@linaro.org, linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org To: broonie@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com Return-path: In-Reply-To: <11e55b5f9b0d83649a5b81c7e3fdb667cd3ddc5b.1550043082.git.baolin.wang@linaro.org> In-Reply-To: <11e55b5f9b0d83649a5b81c7e3fdb667cd3ddc5b.1550043082.git.baolin.wang@linaro.org> References: <11e55b5f9b0d83649a5b81c7e3fdb667cd3ddc5b.1550043082.git.baolin.wang@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-spi.vger.kernel.org From: Lanqing Liu Add the DMA properties for the SPI dma mode. Signed-off-by: Lanqing Liu Signed-off-by: Baolin Wang --- Changes from v1: - Remove sprd,dma-slave-ids property. --- Documentation/devicetree/bindings/spi/spi-sprd.txt | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/spi/spi-sprd.txt b/Documentation/devicetree/bindings/spi/spi-sprd.txt index bad211a..3c7eacc 100644 --- a/Documentation/devicetree/bindings/spi/spi-sprd.txt +++ b/Documentation/devicetree/bindings/spi/spi-sprd.txt @@ -14,6 +14,11 @@ Required properties: address on the SPI bus. Should be set to 1. - #size-cells: Should be set to 0. +Optional properties: +dma-names: Should contain names of the SPI used DMA channel. +dmas: Should contain DMA channels and DMA slave ids which the SPI used + sorted in the same order as the dma-names property. + Example: spi0: spi@70a00000{ compatible = "sprd,sc9860-spi"; @@ -21,6 +26,8 @@ spi0: spi@70a00000{ interrupts = ; clock-names = "spi", "source","enable"; clocks = <&clk_spi0>, <&ext_26m>, <&clk_ap_apb_gates 5>; + dma-names = "rx_chn", "tx_chn"; + dmas = <&apdma 11 11>, <&apdma 12 12>; #address-cells = <1>; #size-cells = <0>; }; -- 1.7.9.5