fpga: Add flag to indicate bitstream needs decompression

Add a flag that is passed to the write_init() callback, indicating
that the bitstream is compressed.

The low-level driver will deal with the flag, or return an error,
if compressed bitstreams are not supported.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Alan Tull <atull@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/include/linux/fpga/fpga-mgr.h b/include/linux/fpga/fpga-mgr.h
index 01c348ca38b7baf237a5207c75287ac9909a12c4..bfa14bc023fbc65014bc7e6010a7a10a181e0d2d 100644 (file)
--- a/include/linux/fpga/fpga-mgr.h
+++ b/include/linux/fpga/fpga-mgr.h
@@ -68,11 +68,13 @@ enum fpga_mgr_states {
  * FPGA_MGR_PARTIAL_RECONFIG: do partial reconfiguration if supported
  * FPGA_MGR_EXTERNAL_CONFIG: FPGA has been configured prior to Linux booting
  * FPGA_MGR_BITSTREAM_LSB_FIRST: SPI bitstream bit order is LSB first
+ * FPGA_MGR_COMPRESSED_BITSTREAM: FPGA bitstream is compressed
  */
 #define FPGA_MGR_PARTIAL_RECONFIG      BIT(0)
 #define FPGA_MGR_EXTERNAL_CONFIG       BIT(1)
 #define FPGA_MGR_ENCRYPTED_BITSTREAM   BIT(2)
 #define FPGA_MGR_BITSTREAM_LSB_FIRST   BIT(3)
+#define FPGA_MGR_COMPRESSED_BITSTREAM  BIT(4)
 
 /**
  * struct fpga_image_info - information specific to a FPGA image