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From: Mark Brown <broonie@kernel.org>
To: Jonathan Richardson <jonathar@broadcom.com>
Cc: Scott Branden <sbranden@broadcom.com>,
	Dmitry Torokhov <dtor@google.com>,
	Anatol Pomazau <anatol@google.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>,
	linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org,
	bcm-kernel-feedback-list <bcm-kernel-feedback-list@broadcom.com>,
	devicetree@vger.kernel.org
Subject: Re: [PATCH 2/2] spi: bcm-mspi: Add support for Broadcom MSPI driver.
Date: Thu, 14 May 2015 21:12:21 +0100	[thread overview]
Message-ID: <20150514201221.GX2761@sirena.org.uk> (raw)
In-Reply-To: <5554FDB4.50809@broadcom.com>

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On Thu, May 14, 2015 at 12:55:32PM -0700, Jonathan Richardson wrote:
> On 15-05-14 12:08 PM, Mark Brown wrote:

> > All it takes is one hardware engineer who sees a SPI controller and a
> > GPIO they can use for chip select; I wouldn't be so sure that nobody
> > ever fixed this up locally (or happened to use a device that only needed
> > single duplex).

> Hi Mark. Would it help if we just set the flags to half duplex using
> SPI_MASTER_HALF_DUPLEX when we register the master?

That would deal with the data corruption issues, yes.  Though it seems
like there are some people who want full duplex support here - I don't
know if any of them can point you at suitable hardware to test?

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  reply	other threads:[~2015-05-14 20:12 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-12 17:38 [PATCH 0/2] Add Broadcom MSPI driver Jonathan Richardson
2015-05-12 17:38 ` [PATCH 1/2] ARM: dts: Add binding for " Jonathan Richardson
     [not found]   ` <1431452293-16697-2-git-send-email-jonathar-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
2015-05-12 18:38     ` Florian Fainelli
2015-05-12 17:38 ` [PATCH 2/2] spi: bcm-mspi: Add support " Jonathan Richardson
     [not found]   ` <1431452293-16697-3-git-send-email-jonathar-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
2015-05-12 18:46     ` Florian Fainelli
2015-05-12 19:17     ` Mark Brown
     [not found]       ` <20150512191718.GW3066-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-05-13 23:49         ` Jonathan Richardson
     [not found]           ` <5553E31A.8060309-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
2015-05-14  0:19             ` Scott Branden
2015-05-14 10:31               ` Mark Brown
     [not found]                 ` <20150514103144.GO2761-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-05-14 18:19                   ` Scott Branden
     [not found]                     ` <5554E715.7070203-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
2015-05-14 18:28                       ` Florian Fainelli
     [not found]                         ` <5554E957.3030809-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-05-14 18:36                           ` Scott Branden
     [not found]                             ` <5554EB49.9020601-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
2015-05-14 18:55                               ` Jonathan Richardson
2015-05-14 19:08                       ` Mark Brown
     [not found]                         ` <20150514190823.GR2761-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-05-14 19:55                           ` Jonathan Richardson
2015-05-14 20:12                             ` Mark Brown [this message]
     [not found]                               ` <20150514201221.GX2761-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-05-14 21:43                                 ` Florian Fainelli

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