linux-kernel - [PATCH v6 1/2] fpga: Add flag to indicate bitstream needs decompression

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Date:   Fri,  9 Jun 2017 02:22:25 +0200
From:   Anatolij Gustschin <agust@...x.de>
To:     linux-fpga@...r.kernel.org
Cc:     Alan Tull <atull@...nel.org>,
        Moritz Fischer <moritz.fischer@...us.com>,
        andy.shevchenko@...il.com, linux-kernel@...r.kernel.org,
        matthew.gerlach@...ux.intel.com, yi1.li@...ux.intel.com
Subject: [PATCH v6 1/2] 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@...x.de>
---
 include/linux/fpga/fpga-mgr.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/fpga/fpga-mgr.h b/include/linux/fpga/fpga-mgr.h
index 01c348c..bfa14bc 100644
--- 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
-- 
2.7.4