| Message ID | 20240417090527.15357-1-eichest@gmail.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Add a property to turn off the max touch controller if not used | expand |
> 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
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(-)