45 lines
1.5 KiB
Plaintext
45 lines
1.5 KiB
Plaintext
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Atmel maXTouch touchscreen/touchpad
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Required properties:
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- compatible:
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atmel,maxtouch
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- reg: The I2C address of the device
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- interrupts: The sink for the touchpad's IRQ output
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See ../interrupt-controller/interrupts.txt
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Optional properties for main touchpad device:
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- linux,gpio-keymap: When enabled, the SPT_GPIOPWN_T19 object sends messages
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on GPIO bit changes. An array of up to 8 entries can be provided
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indicating the Linux keycode mapped to each bit of the status byte,
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starting at the LSB. Linux keycodes are defined in
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<dt-bindings/input/input.h>.
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Note: the numbering of the GPIOs and the bit they start at varies between
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maXTouch devices. You must either refer to the documentation, or
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experiment to determine which bit corresponds to which input. Use
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KEY_RESERVED for unused padding values.
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- atmel,suspend-mode: Select method used to suspend:
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MXT_SUSPEND_DEEP_SLEEP - use T7 to suspend the device into deep sleep
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MXT_SUSPEND_T9_CTRL - use T9.CTRL to turn off touch processing
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Definitions are in <dt-bindings/input/atmel_mxt_ts.h>.
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- atmel,reset-gpio: Configure RESET GPIO. Required for regulator support.
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- atmel,cfg_name: Provide name of configuration file in OBP_RAW format. This
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will be downloaded from the firmware loader on probe to the device.
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- atmel,input_name: Override name of input device from the default.
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Example:
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touch@4b {
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compatible = "atmel,maxtouch";
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reg = <0x4b>;
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interrupt-parent = <&gpio>;
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interrupts = <TEGRA_GPIO(W, 3) IRQ_TYPE_LEVEL_LOW>;
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};
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