Re: [PATCH v8 3/8] ARM: dt: Binding documentation for imx25 touchscreen controller
From: Dmitry Torokhov <hidden>
Date: 2015-11-17 18:21:33
Also in:
linux-arm-kernel, linux-devicetree, linux-iio
On Mon, Nov 16, 2015 at 08:16:09AM -0600, Rob Herring wrote:
On Mon, Nov 16, 2015 at 01:01:04PM +0100, Markus Pargmann wrote:quoted
This is the touchscreen conversion queue binding documentation. It uses the shared imx25 ADC. Signed-off-by: Markus Pargmann <redacted> --- Notes: Changes in v5: - Fix signed/unsigned comparison - Fix unused variable settling_time by putting it in the correct argument list - Use continous conversion queue with the repeat feature and a proper repeat-wait. Previously the touchscreen caused massive number of interrupts. .../bindings/input/touchscreen/fsl-mx25-tcq.txt | 29 ++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/touchscreen/fsl-mx25-tcq.txtdiff --git a/Documentation/devicetree/bindings/input/touchscreen/fsl-mx25-tcq.txt b/Documentation/devicetree/bindings/input/touchscreen/fsl-mx25-tcq.txt new file mode 100644 index 000000000000..89ab47a3acc1 --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/fsl-mx25-tcq.txt@@ -0,0 +1,29 @@ +Freescale mx25 TS conversion queue module + +mx25 touchscreen conversion queue module which controls the ADC unit of the +mx25 for attached touchscreens. + +Required properties: + - compatible: Should be "fsl,imx25-tcq". + - reg: Memory range of the device. + - interrupts: Should be the interrupt number associated with this module within + the tscadc unit (<0>). + - interrupt-parent: Should be a phandle to the tscadc unit. + - fsl,wires: Should be '<4>' or '<5>' + +Optional properties: + - fsl,pen-debounce: Pen debounce time in nanoseconds. + - fsl,pen-threshold: Pen-down threshold for the touchscreen. + - fsl,settling-time: Settling time in nanoseconds.Don't we have standard properties for these?
These are usually controller-specific so no. Thanks. -- Dmitry