Re: [PATCH 0/3] 8250: Split Fintek PCIE to UART to independent file

From: Andy Shevchenko
Date: Tue Jan 19 2016 - 08:21:20 EST


On Tue, 2016-01-19 at 12:33 +0000, One Thousand Gnomes wrote:
> > The architecture of 8250_pci.c is good for PCIE device with 8250
> > compatible serial ports. We want to implement all functions of
> > F81504/508/512, but it'll make 8250_pci.c bloated and complex if we
> > implement GPIOLIB in 8250_pci.c
>
> Your device is multi-function. Create an MFD driver for it. Make the
> 8250 driver bind to the MFD, and provide your own baud rate methods
> within the standard 8250 layer

Ouch, somehow I missed this one!

Peter, Alan's suggestion is really worth to try.

>
> Implement the GPIO lines in a GPIO driver that also binds to the MFD
> and
> lives in drivers/gpio
>
> All the needed pieces already exist to implement it cleanly this way
> without duplicating a ton of code.
>
> Alan

--
Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Intel Finland Oy