From: Marek Szyprowski <m.szyprowski@samsung.com>
Date: Mon, 16 Nov 2015 14:36:54 +0000 (+0100)
Subject: ARM: dts: exynos4210-universal_c210: Disable DMA for UARTs
X-Git-Tag: v4.5-rc1~43^2~6^2~4
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=e8d761b85e37bac136dc14e70bf871fd5fbf4443;p=linux.git

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 81b7ec7b3e31..4f5d37920c8d 100644
--- a/arch/arm/boot/dts/exynos4210-universal_c210.dts
+++ b/arch/arm/boot/dts/exynos4210-universal_c210.dts
@@ -560,16 +560,24 @@ &sdhci_2 {
 
 &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;
 };