Hi, A few small corrections... On 12/18/18 6:20 PM, Long Cheng wrote: > diff --git a/drivers/dma/mediatek/Kconfig b/drivers/dma/mediatek/Kconfig > index 27bac0b..2c082c9 100644 > --- a/drivers/dma/mediatek/Kconfig > +++ b/drivers/dma/mediatek/Kconfig > @@ -1,4 +1,15 @@ > > +config DMA_MTK_UART > + 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 using DMA, When to use DMA, > + you can enable the config. the DMA engine just only be used The DMA engine can only be used > + with MediaTek SoCs. > + cheers, -- ~Randy