| From: |
| Angelo Dureghello <adureghello-AT-baylibre.com> |
| To: |
| Nuno Sá <nuno.sa-AT-analog.com>, Jonathan Cameron <jic23-AT-kernel.org>, Lars-Peter Clausen <lars-AT-metafoo.de>, Jonathan Corbet <corbet-AT-lwn.net>, Olivier Moysan <olivier.moysan-AT-foss.st.com>, Michael Hennerich <Michael.Hennerich-AT-analog.com> |
| Subject: |
| [PATCH v2 0/5] iio: ad3552r-hs: add support for internal ramp generator |
| Date: |
| Mon, 31 Mar 2025 21:02:43 +0200 |
| Message-ID: |
| <20250331-wip-bl-ad3552r-fixes-v2-0-cdedb430497e@baylibre.com> |
| Cc: |
| linux-iio-AT-vger.kernel.org, linux-doc-AT-vger.kernel.org, linux-kernel-AT-vger.kernel.org, Angelo Dureghello <adureghello-AT-baylibre.com> |
| Archive-link: |
| Article |
Add support to enable the HDL IP core internal ramp generator,
actually managed by the adi-axi-dac backend.
It works this way:
/sys/bus/iio/devices/iio:device0# echo 1 > buffer0/out_voltage0_en
/sys/bus/iio/devices/iio:device0# echo 1 > buffer0/out_voltage1_en
/sys/bus/iio/devices/iio:device0# echo 1 > buffer0/enable
Activating ramp generator:
/sys/kernel/debug/iio/iio:device0# echo -n backend-ramp-generator > data_source
Deactivating:
/sys/kernel/debug/iio/iio:device0# echo -n iio-buffer > data_source
Signed-off-by: Angelo Dureghello <adureghello@baylibre.com>
---
Changes in v2:
- doc, add few words for generic spi driver version,
- axi-dac, add a separate patch to check cntrl chan validity,
- axi-dac, return EIO on a wrong source on get,
- add a lock on debugfs file access,
- use const strings and strlen on file access.
- Link to v1: https://lore.kernel.org/r/20250321-wip-bl-ad3552r-fixes-v...
---
Angelo Dureghello (5):
iio: dac: adi-axi-dac: add cntrl chan check
docs: iio: add documentation for ad3552r driver
iio: backend: add support for data source get
iio: dac: adi-axi-dac: add data source get
iio: dac: ad3552r-hs: add support for internal ramp
Documentation/iio/ad3552r.rst | 72 ++++++++++++++++++++++
Documentation/iio/index.rst | 1 +
MAINTAINERS | 1 +
drivers/iio/dac/ad3552r-hs.c | 122 +++++++++++++++++++++++++++++++++++--
drivers/iio/dac/adi-axi-dac.c | 54 ++++++++++++++++
drivers/iio/industrialio-backend.c | 28 +++++++++
include/linux/iio/backend.h | 5 ++
7 files changed, 277 insertions(+), 6 deletions(-)
---
base-commit: eb870a5af7db1e5ca59330875125230b28e630f9
change-id: 20250321-wip-bl-ad3552r-fixes-4a386944c170
Best regards,
--
Angelo Dureghello <adureghello@baylibre.com>
