100 lines
4.0 KiB
Plaintext
100 lines
4.0 KiB
Plaintext
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Goodix GT9xx series touch controller
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Required properties:
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- compatible : Should be "goodix,gt9xx"
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- reg : I2C slave address of the device.
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- interrupt-parent : Parent of interrupt.
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- interrupts : Configuration of touch panel controller interrupt
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GPIO.
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- goodix,product-id : Product identification of the controller.
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- interrupt-gpios : Interrupt gpio which is to provide interrupts to
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host, same as "interrupts" node.
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- reset-gpios : Reset gpio to control the reset of chip.
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- goodix,display-coords : Display coordinates in pixels. It is a four
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tuple consisting of min x, min y, max x and
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max y values.
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Optional properties:
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- avdd-supply : Power supply needed to power up the device, this is
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for fixed voltage external regulator.
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- vdd-supply : Power supply needed to power up the device, when use
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external regulator, do not add this property.
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- vcc-i2c-supply : Power source required to power up i2c bus.
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GT9xx series can provide 1.8V from internal
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LDO, add this properties base on hardware
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design.
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- goodix,panel-coords : Panel coordinates for the chip in pixels.
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It is a four tuple consisting of min x,
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min y, max x and max y values.
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- goodix,i2c-pull-up : To specify pull up is required.
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- goodix,force-update : To specify force update is allowed.
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- goodix,enable-power-off : Power off touchscreen during suspend.
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- goodix,button-map : Button map of key codes. The number of key codes
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depend on panel.
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- goodix,cfg-data0 : Touch screen controller config data group 0. Ask vendor
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to provide that.
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Driver supports maximum six config groups. If more than one
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groups are defined, driver will select config group depending
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on hardware configuration. If only config group 0 is defined,
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it will be used for all hardware configurations.
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Touch screen controller will use its onchip default config data
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if this property is not present.
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- goodix,cfg-data1 : Touch screen controller config data group 1. Ask vendor
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to provide that.
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- goodix,cfg-data2 : Touch screen controller config data group 2. Ask vendor
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to provide that.
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- goodix,cfg-data3 : Touch screen controller config data group 3. Ask vendor
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to provide that.
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- goodix,cfg-data4 : Touch screen controller config data group 4. Ask vendor
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to provide that.
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- goodix,cfg-data5 : Touch screen controller config data group 5. Ask vendor
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to provide that.
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- goodix,fw-name : Touch screen controller firmware file name.
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- goodix,slide-wakeup : To specify slide-wakeup property is enabled or not.
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- goodix,dbl-clk-wakeup : To specify dbl-clk-wakeup property is enabled or not.
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- goodix,change-x2y : To specify change-x2y property is enabled or not.
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- goodix,driver-send-cfg : To specify driver-send-cfg property is enabled or not.
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- goodix,have-touch-key : To specify have-touch-key property is enabled or not.
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- goodix,with-pen : To specify with-pen property is enabled or not.
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Example:
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i2c@f9927000 {
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goodix@5d {
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compatible = "goodix,gt9xx";
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reg = <0x5d>;
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interrupt-parent = <&msmgpio>;
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interrupts = <17 0x2008>;
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reset-gpios = <&msmgpio 16 0x00>;
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interrupt-gpios = <&msmgpio 17 0x00>;
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avdd-supply = <&tp_power>;
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goodix,panel-coords = <0 0 720 1200>;
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goodix,display-coords = <0 0 720 1080>;
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goodix,button-map= <158 102 139>;
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goodix,product-id = "915";
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goodix,cfg-data0 = [
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41 D0 02 00 05 0A 05 01 01 08
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12 58 50 41 03 05 00 00 00 00
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00 00 00 00 00 00 00 8C 2E 0E
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28 24 73 13 00 00 00 83 03 1D
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40 02 00 00 00 03 64 32 00 00
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00 1A 38 94 C0 02 00 00 00 04
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9E 1C 00 8D 20 00 7A 26 00 6D
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2C 00 60 34 00 60 10 38 68 00
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F0 50 35 FF FF 27 00 00 00 00
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00 01 1B 14 0C 14 00 00 01 00
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00 00 00 00 00 00 00 00 00 00
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00 00 02 04 06 08 0A 0C 0E 10
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12 14 16 18 1A 1C FF FF FF FF
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FF FF FF FF FF FF FF FF FF FF
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FF FF 00 02 04 06 08 0A 0C 0F
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10 12 13 14 16 18 1C 1D 1E 1F
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20 21 22 24 26 28 29 2A FF FF
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FF FF FF FF FF FF FF 22 22 22
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22 22 22 FF 07 01];
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goodix,fw_name = "gtp_fw.bin";
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goodix,have-touch-key;
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goodix,driver-send-cfg;
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};
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};
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