From: "Jakub Kiciński" <moorray3@wp.pl>
To: Eddie Huang <eddie.huang@mediatek.com>
Cc: "Mark Brown" <broonie@kernel.org>,
"Leilk Liu (刘磊) " <Leilk.Liu@mediatek.com>,
"Mark Rutland" <mark.rutland@arm.com>,
"Matthias Brugger" <matthias.bgg@gmail.com>,
"Rob Herring" <robh+dt@kernel.org>,
"Pawel Moll" <pawel.moll@arm.com>,
"Ian Campbell" <ijc+devicetree@hellion.org.uk>,
"Kumar Gala" <galak@codeaurora.org>,
"Catalin Marinas" <catalin.marinas@arm.com>,
"Will Deacon" <will.deacon@arm.com>,
"HongZhou Yang" <hongzhou.yang@mediatek.com>,
"Sascha Hauer" <s.hauer@pengutronix.de>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org\" "
<linux-arm-kernel@lists.infradead.org>,
"linux-spi@vger.kernel.org" <linux-spi@vger.kernel.org>,
"linux-mediatek@lists.infradead.org\" "
<linux-mediatek@lists.infradead.org>,
srv_heupstream <srv_heupstream@mediatek.com>
Subject: Re: [PATCH 2/3] spi: mediatek: Add spi bus for Mediatek MT8173
Date: Wed, 17 Jun 2015 18:10:13 +0200 [thread overview]
Message-ID: <20150617181013.2688d08f@north> (raw)
In-Reply-To: <1434550251.23617.38.camel@mtksdaap41>
On Wed, 17 Jun 2015 22:10:51 +0800, Eddie Huang wrote:
> If tx scatterlist per list data size are 128, 4096, 256. rx scatterlist
> per list data size are 128, 4096, 256. So we need to go through above
> steps three times. If tx scatterlists per list data size are 128, 4096,
> 256. rx scatterlists per list data size are 256, 4096, 128. If we start
> sending first entry, tx size is 128, rx size is 256, this will cause
> hardware malfunction because tx, rx data length are not the same.
You can just use min(next_rx_len, next_tx_len) as transfer size.
Am I missing something? For your 128, 4096, 256 vs 256, 4096, 128
example you could do: 128, 128, 3968, 128, 128.
next prev parent reply other threads:[~2015-06-17 16:10 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-08 8:55 Add Mediatek SPI driver leilk.liu-NuS5LvNUpcJWk0Htik3J/w
2015-05-08 8:55 ` leilk.liu
2015-05-08 8:55 ` leilk.liu at mediatek.com
2015-05-08 8:55 ` leilk.liu-NuS5LvNUpcJWk0Htik3J/w
[not found] ` <1431075343-7887-1-git-send-email-leilk.liu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
2015-05-08 8:55 ` [PATCH 1/3] dt-bindings: ARM: Mediatek: Document devicetree bindings for spi bus leilk.liu-NuS5LvNUpcJWk0Htik3J/w
2015-05-08 8:55 ` leilk.liu
2015-05-08 8:55 ` leilk.liu at mediatek.com
2015-05-08 8:55 ` leilk.liu-NuS5LvNUpcJWk0Htik3J/w
2015-05-08 8:55 ` [PATCH 3/3] arm64: dts: Add spi bus dts leilk.liu-NuS5LvNUpcJWk0Htik3J/w
2015-05-08 8:55 ` leilk.liu
2015-05-08 8:55 ` leilk.liu at mediatek.com
2015-05-08 8:55 ` leilk.liu-NuS5LvNUpcJWk0Htik3J/w
2015-05-08 8:55 ` [PATCH 2/3] spi: mediatek: Add spi bus for Mediatek MT8173 leilk.liu
2015-05-08 8:55 ` leilk.liu at mediatek.com
2015-05-08 8:55 ` leilk.liu
[not found] ` <1431075343-7887-3-git-send-email-leilk.liu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
2015-05-08 17:53 ` Mark Brown
2015-05-08 17:53 ` Mark Brown
2015-05-08 17:53 ` Mark Brown
2015-05-12 12:39 ` leilk liu
2015-05-12 12:39 ` leilk liu
2015-05-12 12:39 ` leilk liu
2015-05-12 16:05 ` Mark Brown
2015-05-12 16:05 ` Mark Brown
[not found] ` <20150512160540.GB3066-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-05-13 9:26 ` Yingjoe Chen
2015-05-13 9:26 ` Yingjoe Chen
2015-05-13 9:26 ` Yingjoe Chen
2015-05-13 9:26 ` Yingjoe Chen
2015-05-13 11:10 ` Mark Brown
2015-05-13 11:10 ` Mark Brown
2015-05-13 11:10 ` Mark Brown
2015-05-13 13:58 ` Yingjoe Chen
2015-05-13 13:58 ` Yingjoe Chen
2015-05-13 13:58 ` Yingjoe Chen
2015-05-15 7:38 ` leilk liu
2015-05-15 7:38 ` leilk liu
2015-05-15 7:38 ` leilk liu
2015-05-15 7:38 ` leilk liu
2015-05-15 9:25 ` Mark Brown
2015-05-15 9:25 ` Mark Brown
2015-05-15 9:25 ` Mark Brown
[not found] ` <20150515092543.GY2761-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-06-08 10:15 ` Eddie Huang
2015-06-08 10:15 ` Eddie Huang
2015-06-08 10:15 ` Eddie Huang
2015-06-08 17:59 ` Mark Brown
2015-06-08 17:59 ` Mark Brown
2015-06-08 17:59 ` Mark Brown
[not found] ` <20150608175927.GO14071-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-06-09 10:05 ` Eddie Huang
2015-06-09 10:05 ` Eddie Huang
2015-06-09 10:05 ` Eddie Huang
2015-06-09 10:39 ` Mark Brown
2015-06-09 10:39 ` Mark Brown
2015-06-09 10:39 ` Mark Brown
[not found] ` <20150609103951.GA14071-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-06-10 8:06 ` Eddie Huang
2015-06-10 8:06 ` Eddie Huang
2015-06-10 8:06 ` Eddie Huang
2015-06-17 9:08 ` Eddie Huang
2015-06-17 9:08 ` Eddie Huang
2015-06-17 9:08 ` Eddie Huang
2015-06-17 12:47 ` Mark Brown
2015-06-17 12:47 ` Mark Brown
2015-06-17 12:47 ` Mark Brown
[not found] ` <20150617124758.GE3214-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-06-17 14:10 ` Eddie Huang
2015-06-17 14:10 ` Eddie Huang
2015-06-17 14:10 ` Eddie Huang
2015-06-17 16:10 ` Jakub Kiciński [this message]
2015-06-17 16:35 ` Mark Brown
2015-06-17 16:35 ` Mark Brown
[not found] ` <20150617163531.GU14071-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-06-18 8:11 ` Eddie Huang
2015-06-18 8:11 ` Eddie Huang
2015-06-18 8:11 ` Eddie Huang
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20150617181013.2688d08f@north \
--to=moorray3@wp.pl \
--cc=Leilk.Liu@mediatek.com \
--cc=broonie@kernel.org \
--cc=catalin.marinas@arm.com \
--cc=devicetree@vger.kernel.org \
--cc=eddie.huang@mediatek.com \
--cc=galak@codeaurora.org \
--cc=hongzhou.yang@mediatek.com \
--cc=ijc+devicetree@hellion.org.uk \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mediatek@lists.infradead.org \
--cc=linux-spi@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=matthias.bgg@gmail.com \
--cc=pawel.moll@arm.com \
--cc=robh+dt@kernel.org \
--cc=s.hauer@pengutronix.de \
--cc=srv_heupstream@mediatek.com \
--cc=will.deacon@arm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.