Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) # SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) # Industrial I/O generic buffer implementations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) # When adding new entries keep the list in alphabetical order
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) config IIO_BUFFER_CB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 	tristate "IIO callback buffer used for push in-kernel interfaces"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 	  Should be selected by any drivers that do in-kernel push
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 	  usage.  That is, those where the data is pushed to the consumer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) config IIO_BUFFER_DMA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	tristate "Industrial I/O DMA buffer infrastructure"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	  Provides the generic IIO DMA buffer infrastructure that can be used by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	  drivers for devices with DMA support to implement the IIO buffer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	  Should be selected by drivers that want to use the generic DMA buffer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	  infrastructure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) config IIO_BUFFER_DMAENGINE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	tristate "Industrial I/O DMA buffer integration with DMAEngine"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	select IIO_BUFFER_DMA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	  Provides a bonding of the generic IIO DMA buffer infrastructure with the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	  DMAEngine framework. This can be used by converter drivers with a DMA port
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	  connected to an external DMA controller which is supported by the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	  DMAEngine framework.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	  Should be selected by drivers that want to use this functionality.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) config IIO_BUFFER_HW_CONSUMER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	tristate "Industrial I/O HW buffering"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	  Provides a way to bonding when an IIO device has a direct connection
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	  to another device in hardware. In this case buffers for data transfers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	  are handled by hardware.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	  Should be selected by drivers that want to use the generic Hw consumer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	  interface.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) config IIO_KFIFO_BUF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	tristate "Industrial I/O buffering based on kfifo"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	  A simple fifo based on kfifo.  Note that this currently provides
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	  no buffer events so it is up to userspace to work out how
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	  often to read from the buffer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) config IIO_TRIGGERED_BUFFER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 	tristate "Industrial I/O triggered buffer support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	select IIO_TRIGGER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	select IIO_KFIFO_BUF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 	  Provides helper functions for setting up triggered buffers.