Re: [PATCH 1/2] mfd: micon: Add Buffalo Kurobox Pro, Terastation II Pro/Live driver

From: Lee Jones
Date: Thu Jan 05 2017 - 02:41:28 EST


On Wed, 04 Jan 2017, Florian Fainelli wrote:

> Le 01/04/17 Ã 03:22, Lee Jones a Ãcrit :
> > On Wed, 28 Dec 2016, Florian Fainelli wrote:
> >
> >> This driver is currently only used to reboot the devices, but the
> >> microcontroller hanging off UART1 on the Buffalo Kurobox Pro and
> >> Terastation II Pro/Live is capable of a lot more than that, which we
> >> will support in subsequent patches. For now, just add the reboot
> >> functionality to make the kernel reboot correctly.
> >
> > This is not an MFD driver. You have written a UART driver.
> >
> > Please relocate it to drivers/char/tty/serial.
>
> Not that simple, and as explained in the cover letter the UART attached
> micro controller can do a lot more than just reboot the machine, but

That's fine. This is precisely why we have MFD. But the core (MFD)
driver should only conduct set-up of shared resources, registration of
child devices and maybe some shared functionality required by >1 child
device. All child device (i.e. UART) capability should be handled by
the child drivers.

> someone else is working on the driver, so this patch series can be ignored.

Okay.

--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org â Open source software for ARM SoCs
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