linux-kernel - Goodix触摸屏在linux4.4 armv7l中没有初始化

Question

我使用 pin#3,5 ( ref )将我的 Goodix 触摸面板引脚连接到 I2C0，并使用 GPIOB30 和 GPIOB31 作为中断和复位引脚。我从这个地址编辑了我的 Linux内核GT9xx.h 文件：

    //*************************** PART2:TODO define **********************************
// STEP_1(REQUIRED): Define Configuration Information Group(s)
// Sensor_ID Map:
/* sensor_opt1 sensor_opt2 Sensor_ID
    GND         GND          0 
    VDDIO      GND          1 
    NC           GND          2 
    GND         NC/300K    3 
    VDDIO      NC/300K    4 
    NC           NC/300K    5 
*/
// TODO: define your own default or for Sensor_ID == 0 config here. 
// The predefined one is just a sample config, which is not suitable for your tp in most cases.
#define CTP_CFG_GROUP0 {\
    /* HD101B */ \
    0x46,0xE0,0x01,0x56,0x03,0x02,0xF1,0x01,0x02,0x44,0x00,\
    0x04,0x46,0x32,0x03,0x00.....

// STEP_2(REQUIRED): Customize your I/O ports & I/O operations
#define GTP_RST_PORT    30  //16 //S5PV210_GPJ3(6)
#define GTP_INT_PORT    31  //17 //S5PV210_GPH1(3)


// STEP_3(optional): Specify your special config info if needed
#if GTP_CUSTOM_CFG
  #define GTP_MAX_HEIGHT   480          // 800
  #define GTP_MAX_WIDTH    800          // 480

最后一次编辑在s5p4418-nanopi2-common.dtsi中。我将 goodix 移至 I2C0 并更改 touchpanel_irq：

i2c_0: i2c@c00a4000 {
            samsung,i2c-max-bus-freq = <400000>;
            status = "okay";

            #address-cells = <1>;
            #size-cells = <0>;

            es8316: es8316@11 {
                #sound-dai-cells = <0>;
                compatible = "everest,es8316";
                reg = <0x11>;
            };
            goodix_ts@5d {
                compatible = "goodix,gt9xx";
                reg = <0x5d>;
                interrupt-parent = <&gpio_b>;
                interrupts = <31 IRQ_TYPE_EDGE_FALLING>;
                goodix,irq-gpio = <&gpio_b 31 0>;
                goodix,rst-gpio = <&gpio_b 30 0>;
            };

            goodix_ts@14 {
                compatible = "goodix,gt9xx";
                reg = <0x14>;
                interrupt-parent = <&gpio_c>;
                interrupts = <16 IRQ_TYPE_EDGE_FALLING>;
                goodix,irq-gpio = <&gpio_c 16 0>;
            };
        };

//=========================

pinctrl@C0010000 {
            key_power: key_power {
                nexell,pins = "alive-0";
                nexell,pin-function = <0>;
                nexell,pin-pull = <1>;
                nexell,pin-strength = <0>;
            };

            onewire_pin: onewire-pin {
                nexell,pins = "gpioc-15";
                nexell,pin-function = <1>;
                nexell,pin-pull = <2>;
                nexell,pin-strength = <0>;
            };

            touchpanel_irq: touchpanel-irq {
                nexell,pins = "gpiob-31";
                nexell,pin-function = <1>;
                nexell,pin-pull = <2>;
                nexell,pin-strength = <0>;
            };

但是在编译成功后使 ARCH=arm 并挂载 Linux 并将所有 dtb 文件和 zImage 移动到引导加载程序文件并重新启动触摸不起作用。

root@NanoPC-T2:~# i2cdetect -y 0
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
10: -- UU -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
50: -- -- -- -- -- -- -- -- -- -- -- -- -- 5d -- -- 
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
70: -- -- -- -- -- -- -- -- 

在这个日志中 GTP 是 Goodix Touch Panle 。

root@NanoPC-T2:~# dmesg | grep -i GTP
[    9.495000] <<-GTP-INFO->> GTP driver installing

但汇顶未初始化：

[    9.495000] <<-GTP-INFO->> GTP driver installing
[    9.504000] himax_ts 2-0048: Unable to get DevId
[    9.510000] touchscreen-1wire    initialized
[    9.514000] backlight-1wire  initialized
[    9.521000] onewire: REQ 0x60: i2c read error -11
[    9.526000] input: fa_ts_input as /devices/virtual/input/input0
[    9.533000] ts-if    initialized

对于 i2c：

root@NanoPC-T2:~# dmesg | grep i2c
[    0.253000] i2c-gpio c0000000.soc:i2c@3: using pins 159 (SDA) and 158 (SCL)
[    9.524000] onewire: REQ 0x60: i2c read error -11
[    9.553000] i2c /dev entries driver
[   35.454000] i2c 0-003c: driver 'ov5640' not found

驱动程序正在安装

root@NanoPC-T2:~# find / -iname good*
/sys/bus/i2c/drivers/Goodix-TS
/sys/firmware/devicetree/base/soc/i2c@c00a4000/goodix_ts@14
/sys/firmware/devicetree/base/soc/i2c@c00a4000/goodix_ts@14/goodix,irq-gpio
/sys/firmware/devicetree/base/soc/i2c@c00a4000/goodix_ts@5d
/sys/firmware/devicetree/base/soc/i2c@c00a4000/goodix_ts@5d/goodix,rst-gpio
/sys/firmware/devicetree/base/soc/i2c@c00a4000/goodix_ts@5d/goodix,irq-gpio


                   

标签： linux-kerneltouch-event