From: Stefan Eichenberger <eichest@gmail.com>
To: nick@shmanahar.org, dmitry.torokhov@gmail.com,
robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
conor+dt@kernel.org, nicolas.ferre@microchip.com,
alexandre.belloni@bootlin.com, claudiu.beznea@tuxon.dev,
linus.walleij@linaro.org
Cc: linux-input@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Stefan Eichenberger <stefan.eichenberger@toradex.com>
Subject: [PATCH v1 0/2] Add a property to turn off the max touch controller in suspend mode
Date: Thu, 7 Dec 2023 12:12:58 +0100 [thread overview]
Message-ID: <20231207111300.80581-1-eichest@gmail.com> (raw)
From: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Our hardware has a shared regulator that powers various peripherals such
as the display, touch, USB hub, etc. Since the Maxtouch controller
doesn't currently allow it to be turned off, this regulator has to stay
on in suspend mode. This increases the overall power consumption. In
order to turn off the controller when the system goes into suspend mode,
this series adds a device tree property to the maxtouch driver that
allows the controller to be turned off completely and ensurs that it can
resume from the power off state.
Stefan Eichenberger (2):
dt-bindings: input: atmel,maxtouch: add power-off-in-suspend property
Input: atmel_mxt_ts - support power off in suspend
.../bindings/input/atmel,maxtouch.yaml | 6 ++
drivers/input/touchscreen/atmel_mxt_ts.c | 72 ++++++++++++++-----
2 files changed, 61 insertions(+), 17 deletions(-)
--
2.40.1
next reply other threads:[~2023-12-07 11:13 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-07 11:12 Stefan Eichenberger [this message]
2023-12-07 11:12 ` [PATCH v1 1/2] dt-bindings: input: atmel,maxtouch: add poweroff-in-suspend property Stefan Eichenberger
2023-12-07 16:59 ` Krzysztof Kozlowski
2023-12-08 12:37 ` Stefan Eichenberger
2023-12-08 12:47 ` Krzysztof Kozlowski
2023-12-08 12:54 ` Linus Walleij
2023-12-08 13:11 ` Stefan Eichenberger
2023-12-08 14:23 ` Linus Walleij
2023-12-08 15:05 ` Stefan Eichenberger
2023-12-08 23:37 ` Dmitry Torokhov
2023-12-09 10:57 ` Conor Dooley
2023-12-07 11:13 ` [PATCH v1 2/2] Input: atmel_mxt_ts - support poweroff in suspend Stefan Eichenberger
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