ARM: dts: exynos4210-universal_c210: Disable DMA for UARTs

PDMA for UART devices seems not to be working properly on Exynos 4210
revision 0 used in Universal C210 boards, so disable it to let one to
use UART devices (driver defaults to PIO mode if DMA is not present).

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>

diff --git a/arch/arm/boot/dts/exynos4210-universal_c210.dts b/arch/arm/boot/dts/exynos4210-universal_c210.dts
index 81b7ec7..4f5d379 100644 (file)
--- a/arch/arm/boot/dts/exynos4210-universal_c210.dts
+++ b/arch/arm/boot/dts/exynos4210-universal_c210.dts
@@ -560,16 +560,24 @@
 
 &serial_0 {
        status = "okay";
+       /delete-property/dmas;
+       /delete-property/dma-names;
 };
 
 &serial_1 {
        status = "okay";
+       /delete-property/dmas;
+       /delete-property/dma-names;
 };
 
 &serial_2 {
        status = "okay";
+       /delete-property/dmas;
+       /delete-property/dma-names;
 };
 
 &serial_3 {
        status = "okay";
+       /delete-property/dmas;
+       /delete-property/dma-names;
 };