linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Fabrice Gasnier <fabrice.gasnier@st.com>
To: <jic23@kernel.org>, <linux@armlinux.org.uk>, <robh+dt@kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Cc: <linux-iio@vger.kernel.org>, <mark.rutland@arm.com>,
	<mcoquelin.stm32@gmail.com>, <alexandre.torgue@st.com>,
	<lars@metafoo.de>, <knaack.h@gmx.de>, <pmeerw@pmeerw.net>,
	<fabrice.gasnier@st.com>, <benjamin.gaignard@linaro.org>,
	<benjamin.gaignard@st.com>, <linus.walleij@linaro.org>,
	<amelie.delaunay@st.com>
Subject: [PATCH 0/4] Add STM32H7 DAC driver
Date: Fri, 31 Mar 2017 13:45:03 +0200	[thread overview]
Message-ID: <1490960707-22422-1-git-send-email-fabrice.gasnier@st.com> (raw)

This patchset adds support for the STM32H7 DAC controller

It's a 12-bit, voltage output digital-to-analog converter. It has two
output channels, each with its own converter, trigger sources and
waveform generator.

Each channel can be used independently, so common resources are managed
in stm32-dac-core driver (e.g. clock, reset, regulator, registers).
One IIO device is instantiated per DAC output channel, in stm32-dac
driver, so each channel can have its own trigger.

Please find bellow basic examples, using this driver to:
- generate DC voltage output on channel1
- generate a triangle waveform on channel2

# set max DC voltage / enable / min DC voltage / disable on out1:
cd /sys/bus/iio/devices/iio\:device0
echo 4095 > out_voltage1_raw 
echo 1 > out_voltage1_en
echo 0 > out_voltage1_raw
echo 0 > out_voltage1_en

# configure timer trigger, and set triangle waveform with max
# amplitude on out2:
cd /sys/bus/iio/devices/trigger9
cat name
tim2_trgo
echo 10000 > sampling_frequency

cd /sys/bus/iio/devices/iio\:device1
echo triangle > wave
echo 11 > mamp
echo tim2_trgo > trigger/current_trigger
echo 1 > out_voltage2_en

Fabrice Gasnier (4):
  dt-bindings: iio: stm32-dac: Add support for STM32 DAC
  iio: dac: add support for stm32 DAC
  iio: dac: stm32: add support for trigger events
  iio: dac: stm32: add support for waveform generator

 Documentation/ABI/testing/sysfs-bus-iio-dac-stm32  |  32 ++
 .../devicetree/bindings/iio/dac/st,stm32-dac.txt   |  56 +++
 drivers/iio/dac/Kconfig                            |  18 +
 drivers/iio/dac/Makefile                           |   2 +
 drivers/iio/dac/stm32-dac-core.c                   | 180 +++++++
 drivers/iio/dac/stm32-dac-core.h                   |  63 +++
 drivers/iio/dac/stm32-dac.c                        | 538 +++++++++++++++++++++
 7 files changed, 889 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-dac-stm32
 create mode 100644 Documentation/devicetree/bindings/iio/dac/st,stm32-dac.txt
 create mode 100644 drivers/iio/dac/stm32-dac-core.c
 create mode 100644 drivers/iio/dac/stm32-dac-core.h
 create mode 100644 drivers/iio/dac/stm32-dac.c

-- 
1.9.1

             reply	other threads:[~2017-03-31 11:46 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-31 11:45 Fabrice Gasnier [this message]
2017-03-31 11:45 ` [PATCH 1/4] dt-bindings: iio: stm32-dac: Add support for STM32 DAC Fabrice Gasnier
2017-04-02 11:16   ` Jonathan Cameron
2017-04-05 14:47     ` Fabrice Gasnier
2017-04-03 16:42   ` Rob Herring
2017-04-05 14:48     ` Fabrice Gasnier
2017-03-31 11:45 ` [PATCH 2/4] iio: dac: add support for stm32 DAC Fabrice Gasnier
2017-04-01 12:34   ` Peter Meerwald-Stadler
2017-04-05 14:55     ` Fabrice Gasnier
2017-04-02 11:32   ` Jonathan Cameron
2017-04-05 15:48     ` Fabrice Gasnier
2017-04-08 17:13       ` Jonathan Cameron
2017-03-31 11:45 ` [PATCH 3/4] iio: dac: stm32: add support for trigger events Fabrice Gasnier
2017-04-02 11:45   ` Jonathan Cameron
2017-04-02 12:21     ` Jonathan Cameron
2017-04-05 16:44       ` Fabrice Gasnier
2017-04-08 17:19         ` Jonathan Cameron
2017-03-31 11:45 ` [PATCH 4/4] iio: dac: stm32: add support for waveform generator Fabrice Gasnier
2017-04-02 12:19   ` Jonathan Cameron
2017-04-05 16:46     ` Fabrice Gasnier
2017-04-08 17:21       ` Jonathan Cameron

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1490960707-22422-1-git-send-email-fabrice.gasnier@st.com \
    --to=fabrice.gasnier@st.com \
    --cc=alexandre.torgue@st.com \
    --cc=amelie.delaunay@st.com \
    --cc=benjamin.gaignard@linaro.org \
    --cc=benjamin.gaignard@st.com \
    --cc=devicetree@vger.kernel.org \
    --cc=jic23@kernel.org \
    --cc=knaack.h@gmx.de \
    --cc=lars@metafoo.de \
    --cc=linus.walleij@linaro.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-iio@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux@armlinux.org.uk \
    --cc=mark.rutland@arm.com \
    --cc=mcoquelin.stm32@gmail.com \
    --cc=pmeerw@pmeerw.net \
    --cc=robh+dt@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).