From: Julian Calaby <julian.calaby@gmail.com>
To: Michal Suchanek <hramrach@gmail.com>
Cc: linux-sunxi <linux-sunxi@googlegroups.com>,
"Rob Herring" <robh+dt@kernel.org>,
"Pawel Moll" <pawel.moll@arm.com>,
"Mark Rutland" <mark.rutland@arm.com>,
"Ian Campbell" <ijc+devicetree@hellion.org.uk>,
"Kumar Gala" <galak@codeaurora.org>,
"David Woodhouse" <dwmw2@infradead.org>,
"Brian Norris" <computersforpeace@gmail.com>,
"Marek Vasut" <marex@denx.de>,
"Huang Shijie" <b32955@freescale.com>,
"Rafał Miłecki" <zajec5@gmail.com>,
"Ben Hutchings" <ben@decadent.org.uk>,
"Alison Chaiken" <alison_chaiken@mentor.com>,
"Mika Westerberg" <mika.westerberg@linux.intel.com>,
"Bean Huo 霍斌斌 (beanhuo)" <beanhuo@micron.com>,
"grmoore@altera.com" <grmoore@altera.com>,
devicetree <devicetree@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
linux-mtd@lists.infradead.org
Subject: Re: [linux-sunxi] [PATCH 3/3] MTD: m25p80: Add option to limit SPI transfer size.
Date: Fri, 1 May 2015 00:58:52 +1000 [thread overview]
Message-ID: <CAGRGNgXKrpJ8rc4h4BykgHsn3kfT5fuAssMK1bQJtxhVL=s2BA@mail.gmail.com> (raw)
In-Reply-To: <3b0c112672f364452e80c333048161eaffb655db.1430403750.git.hramrach@gmail.com>
Hi Michal,
On Thu, Apr 30, 2015 at 11:46 PM, Michal Suchanek <hramrach@gmail.com> wrote:
> My SPI driver does not support DMA so sizes larger than 64 bytes return
> an error. Add an option to limit transfer size so m25p80 can be used
> with reduced speed with such controller.
I suspect that this will be rejected as the maximum transfer size is a
property of the SPI controller, not the device and should be exported
to the device driver from the controller, not specified in the
device's binding.
Thanks,
--
Julian Calaby
Email: julian.calaby@gmail.com
Profile: http://www.google.com/profiles/julian.calaby/
next parent reply other threads:[~2015-04-30 14:59 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1430403750.git.hramrach@gmail.com>
[not found] ` <3b0c112672f364452e80c333048161eaffb655db.1430403750.git.hramrach@gmail.com>
2015-04-30 14:58 ` Julian Calaby [this message]
2015-05-20 23:27 ` [linux-sunxi] [PATCH 3/3] MTD: m25p80: Add option to limit SPI transfer size Brian Norris
2015-04-30 16:30 ` [PATCH 0/3] Using SPI NOR flah on sunxi Thomas.Betker
2015-04-30 16:56 ` Michal Suchanek
2015-04-30 18:34 ` Marek Vasut
2015-05-20 23:54 ` Brian Norris
[not found] ` <55132b4496e7fe73f949186c0f140f3e4fd4e2c7.1430403750.git.hramrach@gmail.com>
2015-04-30 18:43 ` [PATCH 1/3] MTD: m25p80: fix write return value Marek Vasut
2015-04-30 21:37 ` Michal Suchanek
[not found] ` <jwv4mnwfppf.fsf-monnier+gmane.comp.hardware.netbook.arm.sunxi@gnu.org>
2015-05-04 10:32 ` [linux-sunxi] Re: [PATCH 0/3] Using SPI NOR flah on sunxi Michal Suchanek
[not found] ` <50c40ef17ab6566f35ef5a4426bf23567f896db7.1430403750.git.hramrach@gmail.com>
2015-05-20 23:38 ` [PATCH 2/3] MTD: spi-nor: check for short writes in spi_nor_write Brian Norris
2015-05-21 8:39 ` Michal Suchanek
2015-05-21 10:28 ` Mark Brown
2015-05-22 7:17 ` Brian Norris
2015-05-22 7:25 ` Brian Norris
2015-05-22 9:37 ` Mark Brown
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