1 From ff9071764e459f0ae477ca1121cb3d225bbab3f8 Mon Sep 17 00:00:00 2001
2 From: Martin Sperl <kernel@martin.sperl.org>
3 Date: Wed, 22 Jul 2015 08:34:41 +0000
4 Subject: [PATCH 159/203] dt-overlay to enable dma for spi driver
6 Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
8 arch/arm/boot/dts/overlays/Makefile | 1 +
9 arch/arm/boot/dts/overlays/spi-dma-overlay.dts | 20 ++++++++++++++++++++
10 2 files changed, 21 insertions(+)
11 create mode 100755 arch/arm/boot/dts/overlays/spi-dma-overlay.dts
13 --- a/arch/arm/boot/dts/overlays/Makefile
14 +++ b/arch/arm/boot/dts/overlays/Makefile
15 @@ -45,6 +45,7 @@ dtb-$(RPI_DT_OVERLAYS) += rpi-sense-over
16 dtb-$(RPI_DT_OVERLAYS) += sdhost-overlay.dtb
17 dtb-$(RPI_DT_OVERLAYS) += spi-bcm2708-overlay.dtb
18 dtb-$(RPI_DT_OVERLAYS) += spi-bcm2835-overlay.dtb
19 +dtb-$(RPI_DT_OVERLAYS) += spi-dma-overlay.dtb
20 dtb-$(RPI_DT_OVERLAYS) += tinylcd35-overlay.dtb
21 dtb-$(RPI_DT_OVERLAYS) += uart1-overlay.dtb
22 dtb-$(RPI_DT_OVERLAYS) += vga666-overlay.dtb
24 +++ b/arch/arm/boot/dts/overlays/spi-dma-overlay.dts
27 + * Device tree overlay for spi-bcm2835 to allow dma
34 + compatible = "brcm,bcm2835", "brcm,bcm2836", "brcm,bcm2708", "brcm,bcm2709";
39 + #address-cells = <1>;
41 + dmas = <&dma 6>, <&dma 7>;
42 + dma-names = "tx", "rx";