114 lines
5.3 KiB
Plaintext
114 lines
5.3 KiB
Plaintext
FocalTech touch controller
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The focaltech controller is connected to host processor
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via i2c. The controller generates interrupts when the
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user touches the panel. The host controller is expected
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to read the touch coordinates over i2c and pass the coordinates
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to the rest of the system.
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Required properties:
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- compatible : should be "focaltech,5x06".
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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 : touch sample interrupt to indicate presense or release
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of fingers on the panel.
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- vdd-supply : Power supply needed to power up the device.
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- vcc_i2c-supply : Power source required to power up i2c bus.
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- focaltech,family-id : family identification of the controller.
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- focaltech,irq-gpio : irq gpio which is to provide interrupts to host,
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same as "interrupts" node. It will also
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contain active low or active high information.
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- focaltech,reset-gpio : reset gpio to control the reset of chip.
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- focaltech,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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- focaltech,name : name of the controller
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- focaltech,group-id : group id of this device
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- focaltech,hard-reset-delay-ms : hard reset delay in ms
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- focaltech,soft-reset-delay-ms : soft reset delay in ms
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- focaltech,fw-delay-aa-ms : specify the delay in ms after programming 0xaa
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register for firmware upgrade
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- focaltech,fw-delay-55-ms : specify the delay in ms after programming 0x55
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register for firmware upgrade
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- focaltech,fw-upgrade-id1 : specify the upgrade id1 for firmware upgrade
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- focaltech,fw-upgrade-id2 : specify the upgrade id2 for firmware upgrade
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- focaltech,fw-delay-readid-ms : specify the read id delay in ms for firmware upgrade
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- focaltech,fw-delay-era-flsh-ms : specify the erase flash delay in ms for firmware upgrade
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- pinctrl-names : This should be defined if a target uses pinctrl framework.
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See "pinctrl" in Documentation/devicetree/bindings/pinctrl/msm-pinctrl.txt.
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Specify the names of the configs that pinctrl can install in driver.
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Following are the pinctrl configs that can be installed:
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"pmx_ts_active" : Active configuration of pins, this should specify active
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config defined in pin groups of interrupt and reset gpio.
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"pmx_ts_suspend" : Disabled configuration of pins, this should specify sleep
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config defined in pin groups of interrupt and reset gpio.
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"pmx_ts_release" : Release configuration of pins, this should specify
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release config defined in pin groups of interrupt and reset gpio.
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Optional properties:
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- focaltech,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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- focaltech,i2c-pull-up : to specify pull up is required.
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- focaltech,no-force-update : to specify force update is allowed.
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- focaltech,button-map : button map of key codes. The number
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of key codes depend on panel
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- focaltech,fw-name : specify the firmware file name
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- focaltech,fw-delay-aa-ms : specify the "aa" delay in ms for firmware upgrade
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- focaltech,fw-delay-55-ms : specify the "55" delay in ms for firmware upgrade
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- focaltech,fw-upgrade-id1 : specify the upgrade id1 for firmware upgrade
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- focaltech,fw-upgrade-id2 : specify the upgrade id2 for firmware upgrade
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- focaltech,fw-delay-readid-ms : specify the read id delay in ms for firmware upgrade
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- focaltech,fw-delay-era-flsh-ms : specify the erase flash delay in ms for firmware upgrade
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- focaltech,fw-auto-cal : specify whether calibration is needed after firmware upgrade
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- focaltech,fw-vkey-support : specify if virtual keys are supported through firmware
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- focaltech,ignore-id-check : specify ignore family-id check
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- focaltech,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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- focaltech,fw-name : specify the firmware file name
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- focaltech,psensor-support : specify whether support the proximity sensor
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- focaltech,gesture-support : specify whether support gesture feature
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- focaltech,resume-in-workqueue : specifiy whether to defer the resume to workqueue
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Example:
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i2c@f9923000{
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focaltech@38{
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compatible = "focaltech,5x06";
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reg = <0x38>;
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interrupt-parent = <&msmgpio>;
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interrupts = <1 0x2>;
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vdd-supply = <&pm8110_l19>;
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vcc_i2c-supply = <&pm8110_l14>;
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pinctrl-names = "pmx_ts_active","pmx_ts_suspend","pmx_ts_release";
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pinctrl-0 = <&ts_int_active &ts_reset_active>;
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pinctrl-1 = <&ts_int_suspend &ts_reset_suspend>;
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pinctrl-2 = <&ts_release>;
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focaltech,name = "ft6x06";
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focaltech,family-id = <0x06>;
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focaltech,reset-gpio = <&msmgpio 0 0x00>;
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focaltech,irq-gpio = <&msmgpio 1 0x00>;
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focaltech,display-coords = <0 0 480 800>;
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focaltech,panel-coords = <0 0 480 800>;
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focaltech,button-map= <139 102 158>;
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focaltech,no-force-update;
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focaltech,i2c-pull-up;
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focaltech,group-id = <1>;
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focaltech,hard-reset-delay = <20>;
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focaltech,soft-reset-delay = <150>;
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focaltech,num-max-touches = <2>;
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focaltech,fw-name = "ft_8610_qrd_fw.bin";
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focaltech,fw-delay-aa-ms = <100>;
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focaltech,fw-delay-55-ms = <30>;
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focaltech,fw-upgrade-id1 = <0x79>;
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focaltech,fw-upgrade-id2 = <0x08>;
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focaltech,fw-delay-readid-ms = <10>;
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focaltech,fw-delay-era-flsh-ms = <2000>;
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focaltech,fw-auto-cal;
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focaltech,psensor-support;
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focaltech,gesture-support;
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};
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};
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