Re: [PATCH 6/7] serial: 8250_dw: add em485 support

From: Andy Shevchenko
Date: Wed Mar 18 2020 - 11:15:09 EST


On Wed, Mar 18, 2020 at 03:26:39PM +0100, Heiko Stuebner wrote:
> From: Giulio Benetti <giulio.benetti@xxxxxxxxxxxxxxxx>
>
> Need to use rs485 transceiver so let's use existing em485 485 emulation
> layer on top of 8250.
>
> Add rs485_config callback to port.

Synopsys DesignWare UART is being supported in three modules right now:
8250_dw (platform driver), 8250_dwlib (some library functions for this driver)
and 8250_lpss (PCI driver).

Can we do in a way that both platform and PCI drivers will get advantage by the change?

> Signed-off-by: Giulio Benetti <giulio.benetti@xxxxxxxxxxxxxxxx>
> Signed-off-by: Heiko Stuebner <heiko.stuebner@xxxxxxxxxxxxxxxxxxxxx>
> ---
> drivers/tty/serial/8250/8250_dw.c | 31 +++++++++++++++++++++++++++++++
> 1 file changed, 31 insertions(+)

--
With Best Regards,
Andy Shevchenko