linux-kernel - Re: [PATCH 7/7] [v2] drivers/misc: introduce Freescale hypervisor management driver

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Date:	Tue, 7 Jun 2011 21:34:24 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Timur Tabi <timur@...escale.com>
Cc:	Chris Metcalf <cmetcalf@...era.com>, linuxppc-dev@...ts.ozlabs.org,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	kumar.gala@...escale.com, linux-kernel@...r.kernel.org,
	akpm@...nel.org, Deepak Saxena <dsaxena@...aro.org>,
	linux-console@...r.kernel.org, greg@...ah.com
Subject: Re: [PATCH 7/7] [v2] drivers/misc: introduce Freescale hypervisor management driver

On Tuesday 07 June 2011 21:20:50 Timur Tabi wrote:
> Arnd Bergmann wrote:
> > For the spi flash driver that goes through the hypervisor abstraction,
> > I think drivers/virt/tile would be better than driver/platform/tile,
> > but we should really have a new "abstract flash character driver" subsystem
> > for that.
> 
> Why should it matter that the SPI flash driver goes through the hypervisor
> abstration?  One of the patches in this patchset is a TTY driver that goes
> through the Freescale hypervisor.  I put the drivers in drivers/tty.

The driver in question is for a hypervisor that abstracts the flash memory
using a read/write interface. There is no way you can represent that as
a SPI host driver.

	Arnd
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