From: Padma Venkat <padma.kvr@gmail.com>
To: Mark Brown <broonie@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org, linux-spi@vger.kernel.org,
Kukjin Kim <kgene.kim@samsung.com>
Subject: Re: [PATCH] spi: s3c64xx: add support for exynos7 SPI controller
Date: Mon, 10 Nov 2014 10:20:27 +0530 [thread overview]
Message-ID: <CAAgF-Bd=S7-PoA7GZoy87W9Dem3OXVhc1tL-eyWEAHvF0LPTKQ@mail.gmail.com> (raw)
In-Reply-To: <20141107101310.GA8509@sirena.org.uk>
Hi Mark,
On 11/7/14, Mark Brown <broonie@kernel.org> wrote:
> On Fri, Nov 07, 2014 at 02:01:57PM +0530, Padma Venkat wrote:
>
>> CS can also be controlled automatically by setting AUTO_N_MANUAL to 1
>> in CS_CFG. When it is auto CS automatically toggles between packet to
>> packet. NCS_TIME_COUNT in CS_CFG controls the inactive period. The
>> driver by default uses manual mode. But on exynos7 the manual mode is
>> removed.
>
> OK, but what's a packet here?
Packet is either 1 byte or 4 bytes size depends on width of the SPI channel.
>
>> I tested the driver with wm5110 codec.
>
> Did you try firmware downloads or something else that generates multiple
> transfers in a message? Normal register writes will use a single
> transfer so I'd expect them to just work.
>
OK. I don't have provision to test on this board. I will try to test
on older boards by disabling manual mode.
Thanks
padma
next prev parent reply other threads:[~2014-11-10 4:50 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-06 9:51 [PATCH] spi: s3c64xx: add support for exynos7 SPI controller Padmavathi Venna
2014-11-06 10:26 ` Mark Brown
[not found] ` <20141106102636.GT8509-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2014-11-07 8:31 ` Padma Venkat
2014-11-07 10:13 ` Mark Brown
2014-11-10 4:50 ` Padma Venkat [this message]
[not found] ` <CAAgF-Bd=S7-PoA7GZoy87W9Dem3OXVhc1tL-eyWEAHvF0LPTKQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-11-14 11:16 ` Padma Venkat
[not found] ` <CAAgF-BcARoRZv=BPqQWyp6rJQQ=CE0FEUz_2vgQSpeZyLwbkBw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-11-21 7:08 ` Padma Venkat
2014-11-25 3:07 ` Padma Venkat
[not found] ` <1415267509-16653-1-git-send-email-padma.v-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2014-11-26 19:01 ` Mark Brown
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