i.MX ProcessorsのトピックRe: How To make it Touch Screen work?

How To make it Touch Screen work?

nandishguruling — Sat, 06 May 2017 08:35:21 GMT

Hello ALL,

I want to interface the touch screen(LCD Driver is ST7789s and Touch Driver is FT6306DMB) LCD Is UP properly now i want to interface this Touch Driver to imx6q-Sabre AI board and Imx6dl- Mars board, For Mars Board i added the below code to work for Touch screen in imx6q-marsboard.dts file,

// MY TOUCH PANEL CODE

&i2c3 {
   clock-frequency = <100000>;
   pinctrl-names = "default";
   pinctrl-0 = <&pinctrl_i2c3>;
   status = "okay";

      polytouch: edt-ft5x06@38 {
       compatible = "edt,edt-ft6306", "edt,edt-ft5x06";
       reg = <0x38>;
       pinctrl-names = "default";
       pinctrl-0 = <&edt_ft5x06_pins>;
       interrupt-parent = <&gpio2>;
       interrupts = <11 2>;
       reset-gpios = <&gpio7 13 1>;
      };
};

//MY TOUCH PANLE CODE END

//MY TOUCH PANEL CODE

            edt_ft5x06_pins: edt-ft5x06grp {
           fsl,pins = <
                                MX6QDL_PAD_SD4_DAT3__GPIO2_IO11         0x1b0b0 //Interrupt
                                MX6QDL_PAD_GPIO_18__GPIO7_IO13            0x1b0b0 //Reset
                           >;
       };
                   //MY TOUCH PANEL CODE END

but i am getting the bellow following boot log error and i enabled i2c driver in kernel also,

hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
mousedev: PS/2 mouse device common for all mice
MY TOUCH PANEL PROBE FUNCTION GET CALLED

usb 1-1: new high-speed USB device number 2 using ci_hdrc
edt_ft5x06 2-0038: touchscreen probe failed
edt_ft5x06: probe of 2-0038 failed with error -5
check_alarm_past: alarm in the past
snvs_rtc 20cc000.snvs:snvs-rtc-lp: rtc core: registered 20cc000.snvs:snvs-r as rtc0
i2c /dev entries driver
IR NEC protocol handler initialized
IR RC5(x/sz) protocol handler initialized

can any one help me to solve this issue, you help would be very appreciation,

Best Regards.

nandish SG

Re: How To make it Touch Screen work?

igorpadykov — Sun, 07 May 2017 23:09:23 GMT

Hi nandish

for ft5x06 bringup one can look at BD resources:

https://boundarydevices.com/tag/touch-screen/
https://community.nxp.com/thread/430812

Best regards
igor
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Re: How To make it Touch Screen work?

nandishguruling — Mon, 08 May 2017 15:22:13 GMT

Hi igor

Thank you for suggestion, i am tried what you suggested in above link and little bit change i done in the code but i am getting the same error, please see the below modified code,

&i2c3 {
   clock-frequency = <100000>;
   pinctrl-names = "default";
   pinctrl-0 = <&pinctrl_i2c3>;
   status = "okay";

      polytouch: edt-ft5x06@38 {
       compatible = "edt,edt-ft5206", "edt,edt-ft5x06";
                //compatible = "ft5x06,ft5x06-touch";
       reg = <0x38>;
       pinctrl-names = "default";
       pinctrl-0 = <&edt_ft5x06_pins>;
       interrupt-parent = <&gpio2>;
       interrupts-extended = <11 2>;
       //reset-gpios = <&gpio7 13 1>;
                wakeup-gpios = <&gpio7 13 0>;
                linux,wakeup;
   };

    };

OUTPUT :

   edt_ft5x06 2-0038: touchscreen probe failed
                   edt_ft5x06: probe of 2-0038 failed with error -5
                  check_alarm_past: alarm in the past

Second Change in code is;

polytouch: edt-ft5x06@38 {
       //compatible = "edt,edt-ft5206", "edt,edt-ft5x06";
                compatible = "ft5x06,ft5x06-touch";
       reg = <0x38>;
       pinctrl-names = "default";
       pinctrl-0 = <&edt_ft5x06_pins>;
       interrupt-parent = <&gpio2>;
       interrupts = <11 2>;
       //reset-gpios = <&gpio7 13 1>;
                wakeup-gpios = <&gpio7 13 0>;

linux,wakeup;
};

OUTPUT:

mousedev: PS/2 mouse device common for all mice
ft5x06-ts 2-0038: reset fffffffe
ft5x06-ts 2-0038: Could not detect touch screen -19.
check_alarm_past: alarm in the past

Please Guide me where i am wrong in this case,

Thanks in advance,

Best Regards

Nandish SG

Re: How To make it Touch Screen work?

martinkeppler — Wed, 06 Dec 2017 16:15:37 GMT

Hi andish gurulingappan,

could you solute your problem?

I got the same error messages

edt_ft5x06 2-0070: touchscreen probe failed
edt_ft5x06: probe of 2-0070 failed with error -5

My pinctrl:

pinctrl_BuyDisp: BuyDispgrp {
fsl,pins = <
MX6QDL_PAD_SD2_CMD__GPIO1_IO11 0x80000000 // Touch Reset
MX6QDL_PAD_CSI0_DAT12__GPIO5_IO30 0x80000000 // Touch Interrupt
>;
};

my i2c3:

&i2c3 {
clock-frequency = <100000>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c3>;
status = "okay";

codec_sgtl5000: sgtl5000@0a {
compatible = "fsl,sgtl5000";
reg = <0x0a>;
clocks = <&clks IMX6QDL_CLK_CKO>;
VDDA-supply = <&reg_2p5v_sgtl5000>;
VDDIO-supply = <&reg_3p3v_sgtl5000>;
status = "disabled";
};

st1232-ts@55 {
compatible = "sitronix,st1232";
reg = <0x55>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_st1232>;
interrupt-parent = <&gpio4>;
interrupts = <30 IRQ_TYPE_LEVEL_LOW>;
reset-gpio = <&gpio1 11 GPIO_ACTIVE_LOW>;
status = "disabled";
};

polytouch: edt-ft5x06@70 {

compatible = "edt,edt-ft5406", "edt,edt-ft5x06";
reg = <0x70>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_BuyDisp>;
interrupt-parent = <&gpio5>;
interrupts = <30 IRQ_TYPE_EDGE_FALLING>;
reset-gpios = <&gpio1 11 GPIO_ACTIVE_LOW>;
status = "okay";
};

};

I would be so happy for any hints.

Re: How To make it Touch Screen work?

nandishguruling — Thu, 07 Dec 2017 03:55:40 GMT

Hello Martin,

Please check the reset and interrupt pin values.

pinctrl_BuyDisp: BuyDispgrp {
fsl,pins = <
MX6QDL_PAD_SD2_CMD__GPIO1_IO11 0x80000000 // Touch Reset in my case it is 0x1b0b1
MX6QDL_PAD_CSI0_DAT12__GPIO5_IO30 0x80000000 // Touch Interrupt in my case it is 0x1b0b1
>;
};

polytouch: edt-ft5x06@70 {

compatible = "edt,edt-ft5406", "edt,edt-ft5x06";
reg = <0x70>; //please check the proper REG value
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_BuyDisp>;
interrupt-parent = <&gpio5>;
interrupts = <30 IRQ_TYPE_EDGE_FALLING>; // <30 IRQ_TYPE_EDGE_FALLING>
reset-gpios = <&gpio1 11 GPIO_ACTIVE_LOW>; //<&gpio1 11 IRQ_TYPE_NONE> or IRQ_TYPE_LEVEL_HIGH
status = "okay";
};

in ****.dts file add the " i2cX"( X is your 2 or 3 ), for you below one,

&i2c3 {
status = "okay";
};

for more info setting the value please refer the imx6DQRM.pdf file from NXP,

i.MX6DL|i.MX 6DualLite Processors|3D Graphics|NXP ,

if once you done please let me know,

Best Regards

Nandish S.G

Re: How To make it Touch Screen work?

martinkeppler — Sat, 09 Dec 2017 17:20:50 GMT

Hi Nandish,

I solved my problem.

There was another device that uses the same pin as my touch: MX6QDL_PAD_SD2_CMD__GPIO1_IO11

Anfter disabling ac97link touch was working.

Thanks for your fast reply.

Many greetings and a nice weekend,

Martin

Re: How To make it Touch Screen work?

nandishguruling — Mon, 11 Dec 2017 05:09:45 GMT

Hi Martin,

Congrats for resolved the issue. if further any other issue regarding this board please let me know,

Best Regards

Nandish S.G