From 1a9aab5ac627f1dc699e8cebad4b87c471710d42 Mon Sep 17 00:00:00 2001 From: Max Krummenacher Date: Thu, 4 Jul 2019 16:07:13 +0200 Subject: arm64: dts: fsl-imx8qm-apalis: spi: use pio mode If using DMA mode the chip select gets deasserted and asserted again with each word in a transmission. PIO mode on the other hand asserts at the beginning of a transmission and de-asserts at the end which for most use-cases is prefered. Related to: #51387 Signed-off-by: Max Krummenacher --- arch/arm64/boot/dts/freescale/fsl-imx8qm-apalis.dts | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/fsl-imx8qm-apalis.dts b/arch/arm64/boot/dts/freescale/fsl-imx8qm-apalis.dts index 36f1a71e9709..c974779def08 100644 --- a/arch/arm64/boot/dts/freescale/fsl-imx8qm-apalis.dts +++ b/arch/arm64/boot/dts/freescale/fsl-imx8qm-apalis.dts @@ -1265,6 +1265,7 @@ pinctrl-0 = <&pinctrl_lpspi0>; #address-cells = <1>; #size-cells = <0>; + dma-names = "no","no"; status = "okay"; spidev0: spi@0 { @@ -1280,6 +1281,7 @@ pinctrl-0 = <&pinctrl_lpspi2>; #address-cells = <1>; #size-cells = <0>; + dma-names = "no","no"; status = "okay"; spidev1: spi@0 { -- cgit v1.2.3