From 9135408c3ace4f7201407b1ef79079c30340743e Mon Sep 17 00:00:00 2001 From: Long Cheng Date: Sat, 27 Apr 2019 11:36:30 +0800 Subject: dmaengine: mediatek: Add MediaTek UART APDMA support Add 8250 UART APDMA to support MediaTek UART. If MediaTek UART is enabled by SERIAL_8250_MT6577, and we can enable this driver to offload the UART device moving bytes. Signed-off-by: Long Cheng Signed-off-by: Sean Wang Signed-off-by: Vinod Koul --- drivers/dma/mediatek/Kconfig | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers/dma/mediatek/Kconfig') diff --git a/drivers/dma/mediatek/Kconfig b/drivers/dma/mediatek/Kconfig index 680fc0572d87..ac49eb6c235e 100644 --- a/drivers/dma/mediatek/Kconfig +++ b/drivers/dma/mediatek/Kconfig @@ -24,3 +24,14 @@ config MTK_CQDMA This controller provides the channels which is dedicated to memory-to-memory transfer to offload from CPU. + +config MTK_UART_APDMA + tristate "MediaTek SoCs APDMA support for UART" + depends on OF && SERIAL_8250_MT6577 + select DMA_ENGINE + select DMA_VIRTUAL_CHANNELS + help + Support for the UART DMA engine found on MediaTek MTK SoCs. + When SERIAL_8250_MT6577 is enabled, and if you want to use DMA, + you can enable the config. The DMA engine can only be used + with MediaTek SoCs. -- cgit