107 lines
4.7 KiB
Plaintext
107 lines
4.7 KiB
Plaintext
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Synaptics DSX touch controller
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Required properties:
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- compatible : should be "synaptics,dsx"
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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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- synaptics,irq-gpio : irq gpio
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- synaptics,reset-gpio : reset gpio
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Optional property:
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- vdd-supply : digital voltage power supply needed to power device
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- avdd-supply : analog voltage power supply needed to power device
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- synaptics,button-map : virtual key code mappings to be used
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- synaptics,x-flip : modify orientation of the x axis
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- synaptics,y-flip : modify orientation of the y axis
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- synaptics,reset-delay-ms : reset delay for controller (ms), default 100
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- synaptics,panel-coords : touch panel min x, min y, max x and
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max y resolution
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- synaptics,display-coords : display min x, min y, max x and
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max y resolution
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- synaptics,fw-name : name of firmware .img file in /etc/firmware
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- synaptics,disable-gpios : specify this to disable gpios in suspend
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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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It should 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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- synaptics,detect-device : Define this property when two Synaptics Touchscreen controllers
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need to be supported without changing the DT. In this case, all
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such devices are placed as child nodes of Synaptics touchscreen
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node. Following are the properties that can be defined inside
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these child nodes:
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- synaptics-package-id
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- synaptics,panel-coords
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- synaptics-display-coords
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- synaptics,button-map
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- synaptics,key-codes
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- clocks : Optional property that represents the clocks associated
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with the underlying bus when secure touch is enabled. This property
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is required only if secure touch is enabled and used with this driver.
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- clock-names: : Clock names used for secure touch. The names are:
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"iface_clk", "core_clk".
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- synaptics,config-id : Specifies the Config Id of touch controller.
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- synaptics,bypass-packrat-id-check : Specifies if packrat ID needs to be ignored for smart
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firmware upgrade
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Optional properties inside child node:
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These properties are defined only when synaptics,detect-device property is defined in DT.
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- synaptics,package-id : Specifies the Package Id of touch controller.
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- synaptics,panel-coords : Specifies the Touch panel min x, min y, max x and max y
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resolution.
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- synaptics,display-coords : Specifies the display min x, min y, max x and max y
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resolution.
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- synaptics,button-map : Key code mappings to be used when device
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supports 0D buttons and directly sends key codes.
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- synaptics,key-codes : Virtual key code mappings to be used when device
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supports 2D buttons and sends coordinates instead of
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key codes.
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- synaptics,bypass-sensor-coords-check : Bypass the comparison of sensor coordinates
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range read from DT and touch controller. Used when some
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touch panels in the field are unprogrammed and misprogrammed.
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Example:
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i2c@f9927000 {
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synaptics@20 {
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compatible = "synaptics,dsx"
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reg = <0x20>;
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interrupt-parent = <&msmgpio>;
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interrupts = <17 0x2>;
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vdd-supply = <&pm8226_l19>;
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avdd-supply = <&pm8226_lvs1>;
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synaptics,reset-gpio = <&msmgpio 16 0x00>;
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synaptics,irq-gpio = <&msmgpio 17 0x00>;
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synaptics,reset-delay-ms = <100>;
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synaptics,x-flip;
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synaptics,y-flip;
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synaptics,disable-gpios;
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synaptics,fw-name = "PR1610974.img";
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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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synaptics,detect-device;
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synaptics,device1 {
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synaptics,package-id = <3202>;
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synaptics,button-map = <139 172 158>;
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};
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synaptics,device2 {
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synaptics,package-id = <3408>;
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synaptics,display-coords = <0 0 1079 1919>;
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synaptics,panel-coords = <0 0 1079 2084>;
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synaptics,key-codes = <139 172 158 217>;
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};
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clocks = <&clock_gcc clk_gcc_blsp1_ahb_clk>,
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<&clock_gcc clk_gcc_blsp1_qup5_i2c_apps_clk>;
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clock-names = "iface_clk", "core_clk";
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};
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};
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