xref: /freebsd/sys/contrib/device-tree/Bindings/arm/msm/ssbi.txt (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71)
1*c66ec88fSEmmanuel Vadot* Qualcomm SSBI
2*c66ec88fSEmmanuel Vadot
3*c66ec88fSEmmanuel VadotSome Qualcomm MSM devices contain a point-to-point serial bus used to
4*c66ec88fSEmmanuel Vadotcommunicate with a limited range of devices (mostly power management
5*c66ec88fSEmmanuel Vadotchips).
6*c66ec88fSEmmanuel Vadot
7*c66ec88fSEmmanuel VadotThese require the following properties:
8*c66ec88fSEmmanuel Vadot
9*c66ec88fSEmmanuel Vadot- compatible: "qcom,ssbi"
10*c66ec88fSEmmanuel Vadot
11*c66ec88fSEmmanuel Vadot- qcom,controller-type
12*c66ec88fSEmmanuel Vadot  indicates the SSBI bus variant the controller should use to talk
13*c66ec88fSEmmanuel Vadot  with the slave device.  This should be one of "ssbi", "ssbi2", or
14*c66ec88fSEmmanuel Vadot  "pmic-arbiter".  The type chosen is determined by the attached
15*c66ec88fSEmmanuel Vadot  slave.
16*c66ec88fSEmmanuel Vadot
17*c66ec88fSEmmanuel VadotThe slave device should be the single child node of the ssbi device
18*c66ec88fSEmmanuel Vadotwith a compatible field.
19