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-rw-r--r--src/include/device/spi.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/src/include/device/spi.h b/src/include/device/spi.h
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--- /dev/null
+++ b/src/include/device/spi.h
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+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2017 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __DEVICE_SPI_H__
+#define __DEVICE_SPI_H__
+
+struct device;
+struct spi_bus_operations {
+ /*
+ * This is a SoC-specific method that can be provided to translate the
+ * 'struct device' for a SPI controller into a unique SPI bus
+ * number. Returns -1 if the bus number for this bus cannot be
+ * determined.
+ */
+ int (*dev_to_bus)(struct device *dev);
+};
+
+#endif /* __DEVICE_SPI_H__ */