Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) What:		/sys/bus/platform/devices/ci_hdrc.0/inputs/a_bus_req
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) Date:		Feb 2014
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) Contact:	Li Jun <jun.li@nxp.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 		Can be set and read.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 		Set a_bus_req(A-device bus request) input to be 1 if
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 		the application running on the A-device wants to use the bus,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 		and to be 0 when the application no longer wants to use
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 		the bus(or wants to work as peripheral). a_bus_req can also
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 		be set to 1 by kernel in response to remote wakeup signaling
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 		from the B-device, the A-device should decide to resume the bus.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 		Valid values are "1" and "0".
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 		Reading: returns 1 if the application running on the A-device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 		is using the bus as host role, otherwise 0.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) What:		/sys/bus/platform/devices/ci_hdrc.0/inputs/a_bus_drop
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) Date:		Feb 2014
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) Contact:	Li Jun <jun.li@nxp.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 		Can be set and read
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 		The a_bus_drop(A-device bus drop) input is 1 when the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 		application running on the A-device wants to power down
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 		the bus, and is 0 otherwise, When a_bus_drop is 1, then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 		the a_bus_req shall be 0.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 		Valid values are "1" and "0".
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 		Reading: returns 1 if the bus is off(vbus is turned off) by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 			 A-device, otherwise 0.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) What:		/sys/bus/platform/devices/ci_hdrc.0/inputs/b_bus_req
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) Date:		Feb 2014
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) Contact:	Li Jun <jun.li@nxp.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 		Can be set and read.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 		The b_bus_req(B-device bus request) input is 1 during the time
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 		that the application running on the B-device wants to use the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 		bus as host, and is 0 when the application no longer wants to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 		work as host and decides to switch back to be peripheral.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 		Valid values are "1" and "0".
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 		Reading: returns if the application running on the B device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 		is using the bus as host role, otherwise 0.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) What:		/sys/bus/platform/devices/ci_hdrc.0/inputs/a_clr_err
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) Date:		Feb 2014
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) Contact:	Li Jun <jun.li@nxp.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 		Only can be set.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 		The a_clr_err(A-device Vbus error clear) input is used to clear
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 		vbus error, then A-device will power down the bus.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 		Valid value is "1"