diff options
| author | Max Krummenacher <max.krummenacher@toradex.com> | 2019-07-04 16:07:13 +0200 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2020-02-12 11:05:58 +0100 |
| commit | 1a9aab5ac627f1dc699e8cebad4b87c471710d42 (patch) | |
| tree | 0b1be1f236f13ad1d8279cf43aba532d10a602d7 | |
| parent | b952231dd1321bf516466c89eac48f3a22e2b3c9 (diff) | |
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 <max.krummenacher@toradex.com>
| -rw-r--r-- | arch/arm64/boot/dts/freescale/fsl-imx8qm-apalis.dts | 2 |
1 files changed, 2 insertions, 0 deletions
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 { |