hello_god 发布的帖子

接线图如上。内核打印信息如下：
get ctp_gesture_wakeup fail, no gesture wakeup
gt9xxnew_ts 2-0014: 2-0014 supply ctp not found, using dummy regulator
sunxi-i2c sunxi-i2c2: SLA+W has been transmitted; ACK not received
sunxi-i2c sunxi-i2c2: engine-mode: xfer failed(dev addr:0x14)
sunxi-i2c sunxi-i2c2: SLA+W has been transmitted; ACK not received
sunxi-i2c sunxi-i2c2: engine-mode: xfer failed(dev addr:0x14)
sunxi-i2c sunxi-i2c2: SLA+W has been transmitted; ACK not received
sunxi-i2c sunxi-i2c2: engine-mode: xfer failed(dev addr:0x14)
sunxi-i2c sunxi-i2c2: SLA+W has been transmitted; ACK not received
sunxi-i2c sunxi-i2c2: engine-mode: xfer failed(dev addr:0x14)
sunxi-i2c sunxi-i2c2: SLA+W has been transmitted; ACK not received
sunxi-i2c sunxi-i2c2: engine-mode: xfer failed(dev addr:0x14)
<<-GTP-ERROR->> I2C Read: 0x8047, 1 bytes failed, errcode: -22! Process reset.
<<-GTP-ERROR->> GTP i2c test failed time 1.
sunxi-i2c sunxi-i2c2: SLA+W has been transmitted; ACK not received
sunxi-i2c sunxi-i2c2: engine-mode: xfer failed(dev addr:0x14)
sunxi-i2c sunxi-i2c2: SLA+W has been transmitted; ACK not received
sunxi-i2c sunxi-i2c2: engine-mode: xfer failed(dev addr:0x14)
sunxi-i2c sunxi-i2c2: SLA+W has been transmitted; ACK not received
sunxi-i2c sunxi-i2c2: engine-mode: xfer failed(dev addr:0x14)
sunxi-i2c sunxi-i2c2: SLA+W has been transmitted; ACK not received
sunxi-i2c sunxi-i2c2: engine-mode: xfer failed(dev addr:0x14)
sunxi-i2c sunxi-i2c2: SLA+W has been transmitted; ACK not received
sunxi-i2c sunxi-i2c2: engine-mode: xfer failed(dev addr:0x14)
<<-GTP-ERROR->> I2C Read: 0x8047, 1 bytes failed, errcode: -22! Process reset.
<<-GTP-ERROR->> GTP i2c test failed time 2.
sunxi-i2c sunxi-i2c2: SLA+W has been transmitted; ACK not received
sunxi-i2c sunxi-i2c2: engine-mode: xfer failed(dev addr:0x14)
sunxi-i2c sunxi-i2c2: SLA+W has been transmitted; ACK not received
sunxi-i2c sunxi-i2c2: engine-mode: xfer failed(dev addr:0x14)
sunxi-i2c sunxi-i2c2: SLA+W has been transmitted; ACK not received
sunxi-i2c sunxi-i2c2: engine-mode: xfer failed(dev addr:0x14)
sunxi-i2c sunxi-i2c2: SLA+W has been transmitted; ACK not received
sunxi-i2c sunxi-i2c2: engine-mode: xfer failed(dev addr:0x14)
sunxi-i2c sunxi-i2c2: SLA+W has been transmitted; ACK not received
sunxi-i2c sunxi-i2c2: engine-mode: xfer failed(dev addr:0x14)
<<-GTP-ERROR->> I2C Read: 0x8047, 1 bytes failed, errcode: -22! Process reset.
<<-GTP-ERROR->> GTP i2c test failed time 3.
sunxi-i2c sunxi-i2c2: SLA+W has been transmitted; ACK not received
sunxi-i2c sunxi-i2c2: engine-mode: xfer failed(dev addr:0x14)
sunxi-i2c sunxi-i2c2: SLA+W has been transmitted; ACK not received
sunxi-i2c sunxi-i2c2: engine-mode: xfer failed(dev addr:0x14)
sunxi-i2c sunxi-i2c2: SLA+W has been transmitted; ACK not received
sunxi-i2c sunxi-i2c2: engine-mode: xfer failed(dev addr:0x14)
sunxi-i2c sunxi-i2c2: SLA+W has been transmitted; ACK not received
sunxi-i2c sunxi-i2c2: engine-mode: xfer failed(dev addr:0x14)
sunxi-i2c sunxi-i2c2: SLA+W has been transmitted; ACK not received
sunxi-i2c sunxi-i2c2: engine-mode: xfer failed(dev addr:0x14)
<<-GTP-ERROR->> I2C Read: 0x8047, 1 bytes failed, errcode: -22! Process reset.
<<-GTP-ERROR->> GTP i2c test failed time 4.
请问这是什么问题