From: Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Barry Song <21cnbao-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Barry Song <Barry.Song-kQvG35nSl+M@public.gmane.org>,
Qipan Li <Qipan.Li-kQvG35nSl+M@public.gmane.org>,
Barry Song <Baohua.Song-kQvG35nSl+M@public.gmane.org>,
DL-SHA-WorkGroupLinux
<workgroup.linux-kQvG35nSl+M@public.gmane.org>,
"linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>,
linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH 8/8] spi: sirf: make DMA transfer mode optional
Date: Sat, 6 Sep 2014 14:55:50 +0100 [thread overview]
Message-ID: <20140906135550.GD2601@sirena.org.uk> (raw)
In-Reply-To: <CAGsJ_4ysw0vy93N4evG_Aq2mMuymVXY6ig2U0EQBwQmz3uMyNA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
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On Fri, Sep 05, 2014 at 04:14:17PM +0800, Barry Song wrote:
> i have no strong technical reason for this as the benefit is not
> always technical. you know....the commit log has provided the reason
> for this patch.
> the difficulty for me is maintaining the difference between mainline
> and local codes, but if we have to maintain two copies, we can.
OK, well I think that's best though it would be better if we were able
to understand what benefit your customers believe they are seeing here
and hopefully address it in a better way. Doing this sort of thing with
Kconfig options is not great, especially when you start trying to build
kernels that work with more than one board.
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From: broonie@kernel.org (Mark Brown)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 8/8] spi: sirf: make DMA transfer mode optional
Date: Sat, 6 Sep 2014 14:55:50 +0100 [thread overview]
Message-ID: <20140906135550.GD2601@sirena.org.uk> (raw)
In-Reply-To: <CAGsJ_4ysw0vy93N4evG_Aq2mMuymVXY6ig2U0EQBwQmz3uMyNA@mail.gmail.com>
On Fri, Sep 05, 2014 at 04:14:17PM +0800, Barry Song wrote:
> i have no strong technical reason for this as the benefit is not
> always technical. you know....the commit log has provided the reason
> for this patch.
> the difficulty for me is maintaining the difference between mainline
> and local codes, but if we have to maintain two copies, we can.
OK, well I think that's best though it would be better if we were able
to understand what benefit your customers believe they are seeing here
and hopefully address it in a better way. Doing this sort of thing with
Kconfig options is not great, especially when you start trying to build
kernels that work with more than one board.
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next prev parent reply other threads:[~2014-09-06 13:55 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-02 9:02 [PATCH 5/8] spi: sirf: add fifo reset/start for cmd transfer Barry Song
2014-09-02 9:02 ` Barry Song
[not found] ` <1409648557-5470-1-git-send-email-Barry.Song-kQvG35nSl+M@public.gmane.org>
2014-09-02 9:02 ` [PATCH 6/8] spi: sirf: set default spi frequency if it is not set Barry Song
2014-09-02 9:02 ` Barry Song
[not found] ` <1409648557-5470-2-git-send-email-Barry.Song-kQvG35nSl+M@public.gmane.org>
2014-09-04 22:39 ` Mark Brown
2014-09-04 22:39 ` Mark Brown
[not found] ` <20140904223913.GU29327-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2014-09-05 7:57 ` Barry Song
2014-09-05 7:57 ` Barry Song
2014-09-02 9:02 ` [PATCH 7/8] spi: sirf: cleanup the indentation of marcos Barry Song
2014-09-02 9:02 ` Barry Song
[not found] ` <1409648557-5470-3-git-send-email-Barry.Song-kQvG35nSl+M@public.gmane.org>
2014-09-04 22:39 ` Mark Brown
2014-09-04 22:39 ` Mark Brown
2014-09-02 9:02 ` [PATCH 8/8] spi: sirf: make DMA transfer mode optional Barry Song
2014-09-02 9:02 ` Barry Song
[not found] ` <1409648557-5470-4-git-send-email-Barry.Song-kQvG35nSl+M@public.gmane.org>
2014-09-04 22:41 ` Mark Brown
2014-09-04 22:41 ` Mark Brown
[not found] ` <20140904224132.GW29327-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2014-09-05 8:14 ` Barry Song
2014-09-05 8:14 ` Barry Song
[not found] ` <CAGsJ_4ysw0vy93N4evG_Aq2mMuymVXY6ig2U0EQBwQmz3uMyNA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-09-06 13:55 ` Mark Brown [this message]
2014-09-06 13:55 ` Mark Brown
[not found] ` <20140906135550.GD2601-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2014-09-07 0:55 ` Barry Song
2014-09-07 0:55 ` Barry Song
2014-09-04 22:37 ` [PATCH 5/8] spi: sirf: add fifo reset/start for cmd transfer Mark Brown
2014-09-04 22:37 ` Mark Brown
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