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authorNicolas Ferre <nicolas.ferre@atmel.com>2013-01-30 15:32:26 +0100
committerNicolas Ferre <nicolas.ferre@atmel.com>2013-02-05 10:55:11 +0100
commitc3f0f282d950a1e87496a2633ed9e924e275ff8c (patch)
treeae7f8b52321c569a97df4f7e8a5b4b3fe87de53f /arch/arm/boot/dts/at91sam9n12.dtsi
parent7d4cfece23f535b60496d88a717a3d7bfca50187 (diff)
downloadlinux-linaro-stable-c3f0f282d950a1e87496a2633ed9e924e275ff8c.tar.gz
ARM: at91/DT: remove atmel,use-dma-* from 9x5 and 9n12 USART nodes
Fix the use of USART on both at91sam9x5 and at91sam9n12. In DTS, the atmel,use-dma-[rx|tx] property is present but a DMA channel cannot be used. Indeed the connexion between the DMA engine and the slave is not implemented yet in Device Tree. Note however that this property is also used for PDC (private DMA) on older SoCs. This is why the driver alone cannot determine the validity of this property. Reported-by: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: stable <stable@vger.kernel.org> [3.8+]
Diffstat (limited to 'arch/arm/boot/dts/at91sam9n12.dtsi')
-rw-r--r--arch/arm/boot/dts/at91sam9n12.dtsi8
1 files changed, 0 insertions, 8 deletions
diff --git a/arch/arm/boot/dts/at91sam9n12.dtsi b/arch/arm/boot/dts/at91sam9n12.dtsi
index 80e29c605d4e..4801717566dd 100644
--- a/arch/arm/boot/dts/at91sam9n12.dtsi
+++ b/arch/arm/boot/dts/at91sam9n12.dtsi
@@ -324,8 +324,6 @@
compatible = "atmel,at91sam9260-usart";
reg = <0xf801c000 0x4000>;
interrupts = <5 4 5>;
- atmel,use-dma-rx;
- atmel,use-dma-tx;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usart0>;
status = "disabled";
@@ -335,8 +333,6 @@
compatible = "atmel,at91sam9260-usart";
reg = <0xf8020000 0x4000>;
interrupts = <6 4 5>;
- atmel,use-dma-rx;
- atmel,use-dma-tx;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usart1>;
status = "disabled";
@@ -346,8 +342,6 @@
compatible = "atmel,at91sam9260-usart";
reg = <0xf8024000 0x4000>;
interrupts = <7 4 5>;
- atmel,use-dma-rx;
- atmel,use-dma-tx;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usart2>;
status = "disabled";
@@ -357,8 +351,6 @@
compatible = "atmel,at91sam9260-usart";
reg = <0xf8028000 0x4000>;
interrupts = <8 4 5>;
- atmel,use-dma-rx;
- atmel,use-dma-tx;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usart3>;
status = "disabled";