OK335xD7寸电容屏使用故障

OK335xD连接7寸电容屏，当点击触摸屏时，返回如下信息，烧录的系统光盘提供的linux，麻烦问下飞凌的工程师，这是软件问题还是硬件问题，是驱动没有加载还是硬件故障？

[  214.428403] omap_i2c omap_i2c.2: Arbitration lost
[  215.446347] omap_i2c omap_i2c.2: timeout waiting for bus ready
[  215.452472] msg ft5x0x_i2c_rxdata i2c read error: -5
[  216.516338] omap_i2c omap_i2c.2: controller timed out
[  216.521650] msg ft5x0x_i2c_rxdata i2c read error: -110

msg ft5x0x_i2c_rxdata i2c read error: -5 说明驱动加载且进行i2c读操作了，超时应该是i2c硬件问题，用示波器看看i2c硬件或屏幕软排线问题