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From: Brian Norris <computersforpeace-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Julian Calaby <julian.calaby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: "Michal Suchanek"
	<hramrach-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	linux-sunxi <linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>,
	"Rob Herring" <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	"Pawel Moll" <pawel.moll-5wv7dgnIgG8@public.gmane.org>,
	"Mark Rutland" <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
	"Ian Campbell"
	<ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org>,
	"Kumar Gala" <galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
	"David Woodhouse" <dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
	"Marek Vasut" <marex-ynQEQJNshbs@public.gmane.org>,
	"Huang Shijie" <b32955-KZfg59tc24xl57MIdRCFDg@public.gmane.org>,
	"Rafał Miłecki" <zajec5-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	"Ben Hutchings" <ben-/+tVBieCtBitmTQ+vhA3Yw@public.gmane.org>,
	"Alison Chaiken"
	<alison_chaiken-nmGgyN9QBj3QT0dZR+AlfA@public.gmane.org>,
	"Mika Westerberg"
	<mika.westerberg-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
	"Bean Huo 霍斌斌 (beanhuo)"
	<beanhuo-AL4WhLSQfzjQT0dZR+AlfA@public.gmane.org>,
	"grmoore-EIB2kfCEclfQT0dZR+AlfA@public.gmane.org"
	<grmoore-EIB2kfCEclfQT0dZR+AlfA@public.gmane.org>,
	devicetree <devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	linux-mtd-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: Re: [PATCH 3/3] MTD: m25p80: Add option to limit SPI transfer size.
Date: Wed, 20 May 2015 16:27:59 -0700	[thread overview]
Message-ID: <20150520232759.GW11598@ld-irv-0074> (raw)
In-Reply-To: <CAGRGNgXKrpJ8rc4h4BykgHsn3kfT5fuAssMK1bQJtxhVL=s2BA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>

On Fri, May 01, 2015 at 12:58:52AM +1000, Julian Calaby wrote:
> On Thu, Apr 30, 2015 at 11:46 PM, Michal Suchanek <hramrach-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> 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.

Absolutely correct. This does not belong in the device tree.

Brian

  parent reply	other threads:[~2015-05-20 23:27 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-30 14:22 [PATCH 0/3] Using SPI NOR flah on sunxi Michal Suchanek
     [not found] ` <cover.1430403750.git.hramrach-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-04-30 13:33   ` [PATCH 1/3] MTD: m25p80: fix write return value Michal Suchanek
     [not found]     ` <55132b4496e7fe73f949186c0f140f3e4fd4e2c7.1430403750.git.hramrach-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-04-30 18:43       ` Marek Vasut
     [not found]         ` <201504302043.11118.marex-ynQEQJNshbs@public.gmane.org>
2015-04-30 21:37           ` Michal Suchanek
2015-04-30 13:38   ` [PATCH 2/3] MTD: spi-nor: check for short writes in spi_nor_write Michal Suchanek
     [not found]     ` <50c40ef17ab6566f35ef5a4426bf23567f896db7.1430403750.git.hramrach-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-05-20 23:38       ` Brian Norris
2015-05-21  8:39         ` Michal Suchanek
     [not found]           ` <CAOMqctTYqDWL51twOuGi+oXONXQ4B2-2BkdJNSpzZAXshZUN6g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-05-21 10:28             ` Mark Brown
     [not found]               ` <20150521102802.GS21577-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-05-22  7:17                 ` Brian Norris
2015-04-30 13:46   ` [PATCH 3/3] MTD: m25p80: Add option to limit SPI transfer size Michal Suchanek
     [not found]     ` <3b0c112672f364452e80c333048161eaffb655db.1430403750.git.hramrach-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-04-30 14:58       ` Julian Calaby
     [not found]         ` <CAGRGNgXKrpJ8rc4h4BykgHsn3kfT5fuAssMK1bQJtxhVL=s2BA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-05-20 23:27           ` Brian Norris [this message]
2015-04-30 16:30   ` [PATCH 0/3] Using SPI NOR flah on sunxi Thomas.Betker-Bf/A/FSCP0w3s4ca2cGeAgC/G2K4zDHf
2015-04-30 16:30 ` Thomas.Betker
2015-04-30 16:30 ` Thomas.Betker
2015-04-30 16:30 ` Thomas.Betker
     [not found]   ` <OF23B05612.4290AF80-ONC1257E37.00589292-C1257E37.005AB106-Bf/A/FSCP0w3s4ca2cGeAgC/G2K4zDHf@public.gmane.org>
2015-04-30 16:56     ` Michal Suchanek
     [not found]       ` <CAOMqctRLnCJfVCYGjsmhORYNk+HCf07wwSXnZv4oqDxbaQqKGw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-04-30 18:34         ` Marek Vasut
2015-05-20 23:54           ` Brian Norris
2015-05-01 12:27 ` Stefan Monnier
     [not found]   ` <jwv4mnwfppf.fsf-monnier+gmane.comp.hardware.netbook.arm.sunxi-mXXj517/zsQ@public.gmane.org>
2015-05-04 10:32     ` [linux-sunxi] " Michal Suchanek

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