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d18716542d
The new(ish) ft6236 simply re-implements the M09 protocol of the (much) older edt-ft5x06.c driver. This commit removes this duplicate driver and adds the i2c ids and dt compatible string to the edt-ft5x06.c driver to keep compatibility. This commit also adds the standard touchscreen properties as optional properties to the edt,ft5x06 binding, these were documented in the focaltech,ft6236 bindingi, but were missing from the edt,ft5x06 doc. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
66 lines
2.2 KiB
Plaintext
66 lines
2.2 KiB
Plaintext
FocalTech EDT-FT5x06 Polytouch driver
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=====================================
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There are 3 variants of the chip for various touch panel sizes
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FT5206GE1 2.8" .. 3.8"
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FT5306DE4 4.3" .. 7"
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FT5406EE8 7" .. 8.9"
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FT5506EEG 7" .. 8.9"
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The software interface is identical for all those chips, so that
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currently there is no need for the driver to distinguish between the
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different chips. Nevertheless distinct compatible strings are used so
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that a distinction can be added if necessary without changing the DT
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bindings.
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Required properties:
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- compatible: "edt,edt-ft5206"
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or: "edt,edt-ft5306"
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or: "edt,edt-ft5406"
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or: "edt,edt-ft5506"
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or: "focaltech,ft6236"
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- reg: I2C slave address of the chip (0x38)
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- interrupt-parent: a phandle pointing to the interrupt controller
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serving the interrupt for this chip
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- interrupts: interrupt specification for the touchdetect
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interrupt
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Optional properties:
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- reset-gpios: GPIO specification for the RESET input
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- wake-gpios: GPIO specification for the WAKE input
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- pinctrl-names: should be "default"
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- pinctrl-0: a phandle pointing to the pin settings for the
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control gpios
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- threshold: allows setting the "click"-threshold in the range
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from 20 to 80.
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- gain: allows setting the sensitivity in the range from 0 to
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31. Note that lower values indicate higher
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sensitivity.
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- offset: allows setting the edge compensation in the range from
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0 to 31.
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- touchscreen-size-x : See touchscreen.txt
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- touchscreen-size-y : See touchscreen.txt
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- touchscreen-fuzz-x : See touchscreen.txt
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- touchscreen-fuzz-y : See touchscreen.txt
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- touchscreen-inverted-x : See touchscreen.txt
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- touchscreen-inverted-y : See touchscreen.txt
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- touchscreen-swapped-x-y : See touchscreen.txt
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Example:
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polytouch: edt-ft5x06@38 {
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compatible = "edt,edt-ft5406", "edt,edt-ft5x06";
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reg = <0x38>;
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pinctrl-names = "default";
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pinctrl-0 = <&edt_ft5x06_pins>;
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interrupt-parent = <&gpio2>;
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interrupts = <5 IRQ_TYPE_EDGE_FALLING>;
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reset-gpios = <&gpio2 6 GPIO_ACTIVE_LOW>;
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wake-gpios = <&gpio4 9 GPIO_ACTIVE_HIGH>;
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};
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