From: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
To: David Lechner <dlechner@baylibre.com>
Cc: "Mark Brown" <broonie@kernel.org>,
"Jonathan Cameron" <jic23@kernel.org>,
"Rob Herring" <robh+dt@kernel.org>,
"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Michael Hennerich" <michael.hennerich@analog.com>,
"Nuno Sá" <nuno.sa@analog.com>,
"Frank Rowand" <frowand.list@gmail.com>,
"Thierry Reding" <thierry.reding@gmail.com>,
"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
"Jonathan Corbet" <corbet@lwn.net>,
linux-spi@vger.kernel.org, linux-iio@vger.kernel.org,
devicetree@vger.kernel.org, linux-doc@vger.kernel.org,
linux-pwm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 06/13] iio: buffer: add hardware triggered buffer support
Date: Fri, 12 Jan 2024 12:37:11 +0000 [thread overview]
Message-ID: <20240112123711.0000422a@Huawei.com> (raw)
In-Reply-To: <20240109-axi-spi-engine-series-3-v1-6-e42c6a986580@baylibre.com>
On Wed, 10 Jan 2024 13:49:47 -0600
David Lechner <dlechner@baylibre.com> wrote:
> This adds a new mode INDIO_HW_BUFFER_TRIGGERED to the IIO subsystem.
>
> This mode is essentially the hardware version of INDIO_BUFFER_TRIGGERED
> where the trigger has the semantics of INDIO_HARDWARE_TRIGGERED and the
> buffer has the semantics of INDIO_BUFFER_HARDWARE.
>
> So basically INDIO_HW_BUFFER_TRIGGERED is the same as
> INDIO_BUFFER_HARDWARE except that it also enables the trigger when the
> buffer is enabled.
If the trigger isn't routeable to multiple devices we normally don't
make it visible at all.
I'm not yet understanding what a trigger actually means in this case.
Why do you need it to be userspace configurable?
J
next prev parent reply other threads:[~2024-01-12 12:37 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-10 19:49 [PATCH 00/13] spi: axi-spi-engine: add offload support David Lechner
2024-01-10 19:49 ` [PATCH 01/13] spi: add core support for controllers with offload capabilities David Lechner
2024-01-10 21:36 ` Mark Brown
2024-01-11 20:54 ` David Lechner
2024-01-11 21:32 ` David Lechner
2024-01-11 21:49 ` Mark Brown
2024-01-12 9:03 ` David Jander
2024-01-12 20:09 ` David Lechner
2024-03-04 23:21 ` David Lechner
2024-03-05 18:50 ` Mark Brown
2024-03-09 17:54 ` Jonathan Cameron
2024-01-11 8:49 ` Nuno Sá
2024-01-11 13:33 ` Mark Brown
2024-01-11 14:11 ` Nuno Sá
2024-01-11 15:41 ` Mark Brown
2024-01-12 7:26 ` Nuno Sá
2024-01-10 19:49 ` [PATCH 02/13] scripts: dtc: checks: don't warn on SPI non-peripheral child nodes David Lechner
2024-01-11 22:03 ` Rob Herring
2024-01-10 19:49 ` [PATCH 03/13] spi: do not attempt to register DT nodes without @ in name David Lechner
2024-01-10 21:37 ` Mark Brown
2024-01-10 19:49 ` [PATCH 04/13] spi: dt-bindings: adi,axi-spi-engine: add offload bindings David Lechner
2024-01-10 23:14 ` Rob Herring
2024-01-11 0:06 ` David Lechner
2024-01-11 9:14 ` Nuno Sá
2024-01-11 9:07 ` Nuno Sá
2024-01-10 19:49 ` [PATCH 05/13] spi: axi-spi-engine: add SPI offload support David Lechner
2024-01-10 21:39 ` Mark Brown
2024-01-10 22:31 ` David Lechner
2024-01-11 13:00 ` Mark Brown
2024-01-11 17:57 ` David Lechner
2024-01-10 19:49 ` [PATCH 06/13] iio: buffer: add hardware triggered buffer support David Lechner
2024-01-12 12:37 ` Jonathan Cameron [this message]
2024-01-12 15:42 ` David Lechner
2024-01-12 16:50 ` Nuno Sá
2024-01-10 19:49 ` [PATCH 07/13] iio: buffer: dmaengine: add INDIO_HW_BUFFER_TRIGGERED flag David Lechner
2024-01-10 19:49 ` [PATCH 08/13] iio: buffer: add new hardware triggered buffer driver David Lechner
2024-01-11 9:24 ` Nuno Sá
2024-01-10 19:49 ` [PATCH 09/13] bus: auxiliary: increase AUXILIARY_NAME_SIZE David Lechner
2024-01-10 19:49 ` [PATCH 10/13] iio: buffer: dmaengine: export devm_iio_dmaengine_buffer_alloc() David Lechner
2024-01-12 12:37 ` Jonathan Cameron
2024-01-12 14:55 ` David Lechner
2024-01-10 19:49 ` [PATCH 11/13] dt-bindings: iio: offload: add binding for PWM/DMA triggered buffer David Lechner
2024-01-10 21:25 ` Rob Herring
2024-01-10 22:56 ` Rob Herring
2024-01-10 19:49 ` [PATCH 12/13] iio: offload: add new PWM triggered DMA buffer driver David Lechner
2024-01-11 9:31 ` Nuno Sá
2024-01-11 14:59 ` Nuno Sá
2024-01-12 12:51 ` Jonathan Cameron
2024-01-12 13:19 ` Nuno Sá
2024-01-12 12:45 ` Jonathan Cameron
2024-01-10 19:49 ` [PATCH 13/13] iio: adc: ad7380: add SPI offload support David Lechner
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