Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) ================================================
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) Imagination Technologies SPDIF Input Controllers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) ================================================
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) The Imagination Technologies SPDIF Input controller contains the following
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) controls:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) * name='IEC958 Capture Mask',index=0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) This control returns a mask that shows which of the IEC958 status bits
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) can be read using the 'IEC958 Capture Default' control.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * name='IEC958 Capture Default',index=0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) This control returns the status bits contained within the SPDIF stream that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) is being received. The 'IEC958 Capture Mask' shows which bits can be read
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) from this control.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * name='SPDIF In Multi Frequency Acquire',index=0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * name='SPDIF In Multi Frequency Acquire',index=1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * name='SPDIF In Multi Frequency Acquire',index=2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * name='SPDIF In Multi Frequency Acquire',index=3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) This control is used to attempt acquisition of up to four different sample
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) rates. The active rate can be obtained by reading the 'SPDIF In Lock Frequency'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) control.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) When the value of this control is set to {0,0,0,0}, the rate given to hw_params
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) will determine the single rate the block will capture. Else, the rate given to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) hw_params will be ignored, and the block will attempt capture for each of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) four sample rates set here.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) If less than four rates are required, the same rate can be specified more than
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) once
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) * name='SPDIF In Lock Frequency',index=0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) This control returns the active capture rate, or 0 if a lock has not been
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) acquired
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) * name='SPDIF In Lock TRK',index=0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) This control is used to modify the locking/jitter rejection characteristics
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) of the block. Larger values increase the locking range, but reduce jitter
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) rejection.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) * name='SPDIF In Lock Acquire Threshold',index=0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) This control is used to change the threshold at which a lock is acquired.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) * name='SPDIF In Lock Release Threshold',index=0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) This control is used to change the threshold at which a lock is released.