| Message ID | 20191009192053.30255-1-aford173@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | ARM: dts: logicpd-torpedo: Disable Bluetooth Serial DMA | expand |
* Adam Ford <aford173@gmail.com> [191009 12:21]: > 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. Applying into omap-for-v5.5/dt thanks. Tony
diff --git a/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts index c34ba0ef8b4d..79d56bc14e88 100644 --- 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 */
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>