From: Dmitry Osipenko <digetx@gmail.com>
To: Nick Dyer <nick@shmanahar.org>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Rob Herring <robh+dt@kernel.org>,
Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Linus Walleij <linus.walleij@linaro.org>,
Jiada Wang <jiada_wang@mentor.com>
Cc: linux-input@vger.kernel.org, devicetree@vger.kernel.org,
linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v4 0/3] Support wakeup methods of Atmel maXTouch controllers
Date: Fri, 22 Jan 2021 23:06:56 +0300 [thread overview]
Message-ID: <20210122200659.7404-1-digetx@gmail.com> (raw)
Some Atmel maXTouch controllers, like mXT1386 and mXT3432S1 for example,
have a WAKE line that needs to be asserted in order to wake controller
from a deep sleep, otherwise it will be unusable. This series implements
support for the wakeup methods in accordance to the mXT1386 datasheet [1],
see page 29 (chapter "5.8 WAKE Line").
The mXT1386 is a widely used controller found on many older Android tablet
devices. Touchscreen on Acer A500 tablet now works properly after this
series.
This patchset is a continuation of the work originally started by
Jiada Wang [2].
[1] https://ww1.microchip.com/downloads/en/DeviceDoc/mXT1386_1vx_Datasheet_LX.pdf
[2] https://patchwork.kernel.org/project/linux-input/list/?series=357875
Changelog:
v4: - Improved commit message of the DT binding patch. No code changes.
v3: - Added "default: 0" to the atmel,wakeup-method property in the binding.
- Added r-b from Linus Walleij to the binding patch.
- The wake-GPIO is now toggled on touchscreen's start/stop in order to
allow it to sleep during suspend. Suggested by Linus Walleij.
v2: - Fixed copy-paste bug in the code.
Dmitry Osipenko (3):
dt-bindings: input: atmel_mxt_ts: Document atmel,wakeup-method and
WAKE line GPIO
Input: atmel_mxt_ts - support wakeup methods
ARM: tegra: acer-a500: Add atmel,wakeup-method property
.../bindings/input/atmel,maxtouch.yaml | 29 +++++++
.../boot/dts/tegra20-acer-a500-picasso.dts | 3 +
drivers/input/touchscreen/atmel_mxt_ts.c | 78 +++++++++++++++++++
include/dt-bindings/input/atmel-maxtouch.h | 10 +++
4 files changed, 120 insertions(+)
create mode 100644 include/dt-bindings/input/atmel-maxtouch.h
--
2.29.2
next reply other threads:[~2021-01-22 21:59 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-22 20:06 Dmitry Osipenko [this message]
2021-01-22 20:06 ` [PATCH v4 1/3] dt-bindings: input: atmel_mxt_ts: Document atmel,wakeup-method and WAKE line GPIO Dmitry Osipenko
2021-02-05 23:16 ` Rob Herring
2021-01-22 20:06 ` [PATCH v4 2/3] Input: atmel_mxt_ts - support wakeup methods Dmitry Osipenko
2021-01-23 22:59 ` Linus Walleij
2021-01-22 20:06 ` [PATCH v4 3/3] ARM: tegra: acer-a500: Add atmel,wakeup-method property Dmitry Osipenko
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=20210122200659.7404-1-digetx@gmail.com \
--to=digetx@gmail.com \
--cc=devicetree@vger.kernel.org \
--cc=dmitry.torokhov@gmail.com \
--cc=jiada_wang@mentor.com \
--cc=jonathanh@nvidia.com \
--cc=linus.walleij@linaro.org \
--cc=linux-input@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-tegra@vger.kernel.org \
--cc=nick@shmanahar.org \
--cc=robh+dt@kernel.org \
--cc=thierry.reding@gmail.com \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.