高通msm8952平台如何修改SDP的充电电流

  支持usb3.0的电脑，SDP的最大充电电流如何修改。

具体路径kernel/drivers/usb/gadget/Composite.c里面的函数

You can check if the computer PC have SS flag or not to see if it support to USB 3.0--900mA.  static int set_config(struct usb_composite_dev *cdev,  const struct usb_ctrlrequest *ctrl, unsigned number)  {  ......  /* when we return, be sure our power usage is valid */  power = c->MaxPower ? c->MaxPower : CONFIG_USB_GADGET_VBUS_DRAW;  done:  usb_gadget_vbus_draw(gadget, power);  if (result >= 0 && cdev->delayed_status)  result = USB_GADGET_DELAYED_STATUS;  return result;  }  you can change power to 900ma.  but the actual current need host SDP support.

除了上面的修改，充电模块会限制到这个电流，同时需要在相应的dtsi里面修改qcom.thermal-mitigations = <1500 700 600 0>改为<1500 900 600 0>