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Message-ID: <20150514201221.GX2761@sirena.org.uk>
Date: Thu, 14 May 2015 21:12:21 +0100
From: Mark Brown <broonie@...nel.org>
To: Jonathan Richardson <jonathar@...adcom.com>
Cc: Scott Branden <sbranden@...adcom.com>,
Dmitry Torokhov <dtor@...gle.com>,
Anatol Pomazau <anatol@...gle.com>,
Rob Herring <robh+dt@...nel.org>,
Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Kumar Gala <galak@...eaurora.org>,
linux-kernel@...r.kernel.org, linux-spi@...r.kernel.org,
bcm-kernel-feedback-list <bcm-kernel-feedback-list@...adcom.com>,
devicetree@...r.kernel.org
Subject: Re: [PATCH 2/2] spi: bcm-mspi: Add support for Broadcom MSPI driver.
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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