From: David Lechner <dlechner@baylibre.com>
To: "Conor Dooley" <conor@kernel.org>, "Nuno Sá" <noname.nuno@gmail.com>
Cc: "Mark Brown" <broonie@kernel.org>,
"Jonathan Cameron" <jic23@kernel.org>,
"Rob Herring" <robh@kernel.org>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Nuno Sá" <nuno.sa@analog.com>,
"Michael Hennerich" <Michael.Hennerich@analog.com>,
"Lars-Peter Clausen" <lars@metafoo.de>,
"David Jander" <david@protonic.nl>,
"Martin Sperl" <kernel@martin.sperl.org>,
linux-spi@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org
Subject: Re: [PATCH RFC v2 1/8] spi: dt-bindings: spi-peripheral-props: add spi-offloads property
Date: Thu, 30 May 2024 16:28:38 -0500 [thread overview]
Message-ID: <8ba46ea7-ad57-4ade-9a77-fc605710c14f@baylibre.com> (raw)
In-Reply-To: <20240530-petunia-genre-2731493dbd0f@spud>
On 5/30/24 2:18 PM, Conor Dooley wrote:
>
> If only we had another user... I suppose you lads are the market leader
> in these kinds of devices. If I did happen to know if Microchip was
> working on anything similar (which I don't, I work on FPGAs not these
> kinds of devices) I couldn't even tell you. I suppose I could ask around
> and see. Do you know if TI is doing anything along these lines?
>
I think the most popular use case for the performance improvements made
possible with a SPI offload unrelated to ADCs/DACs is for CAN controllers
(e.g. the discussion from David Jander a few years ago).
I think one of my colleagues was working on one in the last year that we
might still have lying around. But I don't know what we could use as the
SPI controller that would have offload support.
I suppose we could make something using e.g. the PRU in a BeagleBone, but
that would take lots of engineering resources and we could design it to fit
whatever interface we want, so I'm not sure that really helps much. If we
could find an off-the-shelf SPI controller with offload capabilities that
would be helpful, but I don't know of any.
next prev parent reply other threads:[~2024-05-30 21:28 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-11 0:44 [PATCH RFC v2 0/8] spi: axi-spi-engine: add offload support David Lechner
2024-05-11 0:44 ` [PATCH RFC v2 1/8] spi: dt-bindings: spi-peripheral-props: add spi-offloads property David Lechner
2024-05-13 16:46 ` Conor Dooley
2024-05-13 17:06 ` David Lechner
2024-05-14 18:46 ` Conor Dooley
2024-05-14 22:56 ` David Lechner
2024-05-16 21:32 ` Conor Dooley
2024-05-17 16:51 ` David Lechner
2024-05-19 12:53 ` Conor Dooley
2024-05-21 14:54 ` David Lechner
2024-05-22 18:24 ` Conor Dooley
2024-05-23 12:15 ` Nuno Sá
2024-05-23 12:45 ` Mark Brown
2024-05-23 14:31 ` Conor Dooley
2024-05-23 15:05 ` David Lechner
2024-05-26 15:42 ` Conor Dooley
2024-05-26 17:35 ` Conor Dooley
2024-05-29 8:07 ` Nuno Sá
2024-05-29 8:33 ` Conor Dooley
2024-05-30 19:18 ` Conor Dooley
2024-05-30 21:28 ` David Lechner [this message]
2024-05-31 12:47 ` Mark Brown
2024-05-31 7:39 ` Nuno Sá
2024-05-30 19:24 ` David Lechner
2024-05-31 7:33 ` Nuno Sá
2024-06-04 19:33 ` Conor Dooley
2024-06-04 19:39 ` David Lechner
2024-06-04 19:42 ` Conor Dooley
2024-06-04 20:04 ` David Lechner
2024-05-23 14:28 ` David Lechner
2024-05-23 14:57 ` Nuno Sá
2024-05-23 15:09 ` David Lechner
2024-05-23 15:30 ` Nuno Sá
2024-05-26 15:45 ` Conor Dooley
2024-05-29 20:10 ` David Lechner
2024-05-30 17:25 ` Conor Dooley
2024-05-30 18:42 ` Conor Dooley
2024-05-11 0:44 ` [PATCH RFC v2 2/8] spi: add basic support for SPI offloading David Lechner
2024-05-21 11:57 ` Nuno Sá
2024-05-11 0:44 ` [PATCH RFC v2 3/8] spi: add support for hardware triggered offload David Lechner
2024-05-11 16:51 ` Jonathan Cameron
2024-05-11 0:44 ` [PATCH RFC v2 4/8] spi: add offload xfer flags David Lechner
2024-05-11 0:44 ` [PATCH RFC v2 5/8] spi: dt-bindings: axi-spi-engine: document spi-offloads David Lechner
2024-05-11 0:44 ` [PATCH RFC v2 6/8] spi: axi-spi-engine: add offload support David Lechner
2024-05-21 12:31 ` Nuno Sá
2024-05-21 14:28 ` David Lechner
2024-05-22 12:08 ` Nuno Sá
2024-05-11 0:44 ` [PATCH RFC v2 7/8] dt-bindings: iio: adc: adi,ad7944: add SPI offload properties David Lechner
2024-05-11 0:44 ` [PATCH RFC v2 8/8] iio: adc: ad7944: add support for SPI offload David Lechner
2024-05-11 16:58 ` Jonathan Cameron
2024-05-11 18:41 ` David Lechner
2024-05-12 11:52 ` Jonathan Cameron
2024-05-13 15:15 ` David Lechner
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