From: Joao Paulo Goncalves <jpaulo.silvagoncalves@gmail.com>
To: eichest@gmail.com
Cc: alexandre.belloni@bootlin.com, claudiu.beznea@tuxon.dev,
conor+dt@kernel.org, devicetree@vger.kernel.org,
dmitry.torokhov@gmail.com, krzysztof.kozlowski+dt@linaro.org,
linus.walleij@linaro.org, linux-arm-kernel@lists.infradead.org,
linux-input@vger.kernel.org, linux-kernel@vger.kernel.org,
nick@shmanahar.org, nicolas.ferre@microchip.com, robh@kernel.org,
Joao Paulo Goncalves <joao.goncalves@toradex.com>
Subject: RE: [PATCH v4 0/4] Add a property to turn off the max touch controller if not used
Date: Wed, 17 Apr 2024 08:12:30 -0300 [thread overview]
Message-ID: <20240417111230.785623-1-jpaulo.silvagoncalves@gmail.com> (raw)
In-Reply-To: <20240417090527.15357-1-eichest@gmail.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 when not used. This increases the overall power consumption. In order
> to turn off the controller when the system does not use it, 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.
>
> Changes since v3:
> - Move the power on part to mxt_start and the power off part to
> mxt_stop. This allows to turn the touch controller off even when not
> in use and not only when being suspended (Dmitry)
>
> Changes since v2:
> - Add Reviewed-by tags from Linus and Krzysztof to the dt-bindings patch
>
> Changes since v1:
> - Rename the property and change the description (Krzysztof, Linus,
> Dmitry, Conor)
>
> Stefan Eichenberger (4):
> Input: atmel_mxt_ts - add power off and power on functions
> Input: atmel_mxt_ts - move calls to register the input device to
> separate function
> dt-bindings: input: atmel,maxtouch: add poweroff-sleep property
> Input: atmel_mxt_ts - add support for poweroff-sleep
>
> .../bindings/input/atmel,maxtouch.yaml | 6 +
> drivers/input/touchscreen/atmel_mxt_ts.c | 162 +++++++++++++-----
> 2 files changed, 124 insertions(+), 44 deletions(-)
>
> --
> 2.40.1
>
Reviewed-by: Joao Paulo Goncalves <joao.goncalves@toradex.com>
Regards,
Joao Paulo
prev parent reply other threads:[~2024-04-17 11:12 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-17 9:05 [PATCH v4 0/4] Add a property to turn off the max touch controller if not used Stefan Eichenberger
2024-04-17 9:05 ` [PATCH v4 1/4] Input: atmel_mxt_ts - add power off and power on functions Stefan Eichenberger
2024-04-17 9:05 ` [PATCH v4 2/4] Input: atmel_mxt_ts - move calls to register the input device to separate function Stefan Eichenberger
2024-04-17 9:05 ` [PATCH v4 3/4] dt-bindings: input: atmel,maxtouch: add poweroff-sleep property Stefan Eichenberger
2024-04-17 9:05 ` [PATCH v4 4/4] Input: atmel_mxt_ts - add support for poweroff-sleep Stefan Eichenberger
2024-04-17 11:12 ` Joao Paulo Goncalves [this message]
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