Re: [PATCH v3 2/2] serial: 8250: of: Add new port type for MediaTek BTIF controller on MT7622/23 SoC

From: Arnd Bergmann
Date: Mon Aug 21 2017 - 05:50:45 EST


On Sun, Aug 20, 2017 at 7:17 PM, <sean.wang@xxxxxxxxxxxx> wrote:
> From: Sean Wang <sean.wang@xxxxxxxxxxxx>
>
> MediaTek BTIF controller is the serial interface similar to UART but it
> works only as the digital device which is mainly used to communicate with
> the connectivity module called CONNSYS inside the SoC which could be mostly
> found on those MediaTek SoCs with Bluetooth feature such as MT7622 and
> MT7623 SoCs.
>
> And the controller is made as being compatible with the 8250 register
> layout with extra registers such as DMA enablement so it tends to be
> integrated with reusing 8250 OF driver. However, DMA mode is not being
> supported yet in the current driver.
>
> Signed-off-by: Sean Wang <sean.wang@xxxxxxxxxxxx>
> Suggested-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>

Acked-by: Arnd Bergmann <arnd@xxxxxxxx>