From: Mark Brown <broonie@kernel.org>
To: Vignesh R <vigneshr@ti.com>
Cc: Benoit Cousson <bcousson@baylibre.com>,
Tony Lindgren <tony@atomide.com>,
Russell King <linux@arm.linux.org.uk>,
David Woodhouse <dwmw2@infradead.org>,
Brian Norris <computersforpeace@gmail.com>,
hramrach@gmail.com, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-mtd@lists.infradead.org, linux-spi@vger.kernel.org
Subject: Re: [PATCH 1/5] spi: introduce mmap read support for spi flash devices
Date: Mon, 14 Sep 2015 19:37:44 +0100 [thread overview]
Message-ID: <20150914183744.GF12027@sirena.org.uk> (raw)
In-Reply-To: <1441355402-6837-2-git-send-email-vigneshr@ti.com>
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On Fri, Sep 04, 2015 at 01:59:58PM +0530, Vignesh R wrote:
> In addition to providing direct access to SPI bus, some spi controller
> hardwares (like ti-qspi) provide special memory mapped port
> to accesses SPI flash devices in order to increase read performance.
> This means the controller can automatically send the SPI signals
> required to read data from the SPI flash device.
Sorry, also meant to say here: as I kind of indicated in response to the
flash patch I'd expect to see the SPI core know something about this and
export an API for this which is integrated with things like the existing
message queue.
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next prev parent reply other threads:[~2015-09-14 18:37 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-04 8:29 [PATCH 0/5] Add memory mapped read support for ti-qspi Vignesh R
2015-09-04 8:29 ` [PATCH 1/5] spi: introduce mmap read support for spi flash devices Vignesh R
[not found] ` <1441355402-6837-2-git-send-email-vigneshr-l0cyMroinI0@public.gmane.org>
2015-09-04 11:25 ` Jagan Teki
[not found] ` <CAD6G_RT8Q+Uyp1ZjzHf54Tno1wHm0SmLKEwRAe2gkdp772FD9A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-09-14 18:35 ` Mark Brown
2015-09-16 10:07 ` Vignesh R
[not found] ` <20150914183553.GE12027-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-09-16 12:46 ` Jagan Teki
[not found] ` <CAD6G_RQOazkS7KHrG75wgMXx1cH_pKjx43Mve6fz1qOJGPpq9w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-09-16 15:24 ` Mark Brown
2015-09-16 15:30 ` Michal Suchanek
2015-09-14 18:37 ` Mark Brown [this message]
2015-09-16 10:08 ` Vignesh R
[not found] ` <55F93F89.7060708-l0cyMroinI0@public.gmane.org>
2015-09-16 10:56 ` Mark Brown
2015-09-18 12:10 ` Vignesh R
2015-09-04 8:29 ` [PATCH 2/5] spi: spi-ti-qspi: add mmap mode read support Vignesh R
2015-09-14 18:26 ` Mark Brown
2015-09-16 10:07 ` Vignesh R
2015-09-04 8:30 ` [PATCH 3/5] mtd: devices: m25p80: add support for mmap read request Vignesh R
[not found] ` <1441355402-6837-4-git-send-email-vigneshr-l0cyMroinI0@public.gmane.org>
2015-09-14 18:27 ` Mark Brown
2015-09-16 10:07 ` Vignesh R
[not found] ` <1441355402-6837-1-git-send-email-vigneshr-l0cyMroinI0@public.gmane.org>
2015-09-04 8:30 ` [PATCH 4/5] ARM: dts: DRA7: add entry for qspi mmap region Vignesh R
2015-09-04 8:30 ` [PATCH 5/5] ARM: dts: AM4372: " Vignesh R
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