fpga: xilinx-spi: extract a common driver core

[linux-block.git] / drivers / fpga / xilinx-core.h

diff --git a/drivers/fpga/xilinx-core.h b/drivers/fpga/xilinx-core.h
new file mode 100644 (file)
index 0000000..f02ac67
--- /dev/null
+++ b/drivers/fpga/xilinx-core.h
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef __XILINX_CORE_H
+#define __XILINX_CORE_H
+
+#include <linux/device.h>
+
+/**
+ * struct xilinx_fpga_core - interface between the driver and the core manager
+ *                           of Xilinx 7 Series FPGA manager
+ * @dev:       device node
+ * @write:     write callback of the driver
+ */
+struct xilinx_fpga_core {
+/* public: */
+       struct device *dev;
+       int (*write)(struct xilinx_fpga_core *core, const char *buf,
+                    size_t count);
+/* private: handled by xilinx-core */
+       struct gpio_desc *prog_b;
+       struct gpio_desc *init_b;
+       struct gpio_desc *done;
+};
+
+int xilinx_core_probe(struct xilinx_fpga_core *core);
+
+#endif /* __XILINX_CORE_H */