ARM: dts: logicpd-torpedo: Disable Bluetooth Serial DMA

The default serial driver for omap2plus is the 8250_omap driver.
Unfortunately, this driver does not yet appear to have fully
functional DMA on OMAP3630/DM3730 which causes some timeouts and
frame errors.

This patch removes the DMA entry from the device tree which allow
the UART to operate without Bluetooth frame errors. If/when DMA
is working on OMAP3630, this should be reverted.

Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
index c34ba0ef8b4d763e4fd9e0e1f87c936e3f47d119..79d56bc14e880b2d6fc9135d6d38df199eddb8dc 100644 (file)
--- a/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
+++ b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
@@ -51,6 +51,7 @@
 };
 
 &uart2 {
+       /delete-property/dma-names;
        bluetooth {
                compatible = "ti,wl1283-st";
                enable-gpios = <&gpio6 2 GPIO_ACTIVE_HIGH>; /* gpio 162 */