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    fpga: mgr: API change to replace fpga load functions with single function · 5cf0c7f6
    Alan Tull authored
    
    
    fpga-mgr has three methods for programming FPGAs, depending on
    whether the image is in a scatter gather list, a contiguous
    buffer, or a firmware file. This makes it difficult to write
    upper layers as the caller has to assume whether the FPGA image
    is in a sg table, as a single buffer, or a firmware file.
    This commit moves these parameters to struct fpga_image_info
    and adds a single function for programming fpgas.
    
    New functions:
    * fpga_mgr_load - given fpga manager and struct fpga_image_info,
       program the fpga.
    
    * fpga_image_info_alloc - alloc a struct fpga_image_info.
    
    * fpga_image_info_free - free a struct fpga_image_info.
    
    These three functions are unexported:
    * fpga_mgr_buf_load_sg
    * fpga_mgr_buf_load
    * fpga_mgr_firmware_load
    
    Also use devm_kstrdup to copy firmware_name so we aren't making
    assumptions about where it comes from when allocing/freeing the
    struct fpga_image_info.
    
    API documentation has been updated and a new document for
    FPGA region has been added.
    
    Signed-off-by: default avatarAlan Tull <atull@kernel.org>
    Acked-by: default avatarMoritz Fischer <mdf@kernel.org>
    Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
    5cf0c7f6