threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
42 lines
1.3 KiB
Plaintext
42 lines
1.3 KiB
Plaintext
* Texas Instruments tsc2007 touchscreen controller
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Required properties:
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- compatible: must be "ti,tsc2007".
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- reg: I2C address of the chip.
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- ti,x-plate-ohms: X-plate resistance in ohms.
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Optional properties:
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- gpios: the interrupt gpio the chip is connected to (trough the penirq pin).
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The penirq pin goes to low when the panel is touched.
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(see GPIO binding[1] for more details).
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- interrupt-parent: the phandle for the gpio controller
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(see interrupt binding[0]).
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- interrupts: (gpio) interrupt to which the chip is connected
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(see interrupt binding[0]).
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- ti,max-rt: maximum pressure.
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- ti,fuzzx: specifies the absolute input fuzz x value.
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If set, it will permit noise in the data up to +- the value given to the fuzz
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parameter, that is used to filter noise from the event stream.
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- ti,fuzzy: specifies the absolute input fuzz y value.
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- ti,fuzzz: specifies the absolute input fuzz z value.
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- ti,poll-period: how much time to wait (in milliseconds) before reading again the
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values from the tsc2007.
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[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
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[1]: Documentation/devicetree/bindings/gpio/gpio.txt
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Example:
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&i2c1 {
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/* ... */
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tsc2007@49 {
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compatible = "ti,tsc2007";
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reg = <0x49>;
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interrupt-parent = <&gpio4>;
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interrupts = <0x0 0x8>;
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gpios = <&gpio4 0 0>;
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ti,x-plate-ohms = <180>;
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};
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/* ... */
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};
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