linux-kernel - Re: [RFC] spi: dw: support setting tmode dynamically

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Message-ID: <20151223121512.GV16023@sirena.org.uk>
Date:	Wed, 23 Dec 2015 12:15:12 +0000
From:	Mark Brown <broonie@...nel.org>
To:	Jisheng Zhang <jszhang@...vell.com>
Cc:	linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC] spi: dw: support setting tmode dynamically

On Wed, Dec 23, 2015 at 07:23:38PM +0800, Jisheng Zhang wrote:

> Currently the spi-dw tmode is fixed to SPI_TMOD_TR if cs_control is NULL, but we
> need to set it as SPI_TMOD_EPROMREAD to read nor flash, my solution is to add and
> export one functions to set the tmode, then the nor flash driver call it
> before reading and set back to SPI_TMOD_TR after done.

What does this mean - what is TMOD and why do we need to set it to read
NOR flash?  I've no information on this controller...

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