Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_spi_clk_freq
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) KernelVersion:	4.14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) Contact:	arnaud.pouliquen@st.com
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 		For audio purpose only.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 		Used by audio driver to set/get the spi input frequency.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 		This is mandatory if DFSDM is slave on SPI bus, to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 		provide information on the SPI clock frequency during runtime
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 		Notice that the SPI frequency should be a multiple of sample
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 		frequency to ensure the precision.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 		if DFSDM input is SPI master:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 			Reading  SPI clkout frequency,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 			error on writing
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 		If DFSDM input is SPI Slave:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 			Reading returns value previously set.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 			Writing value before starting conversions.