1 files changed, 48 insertions, 0 deletions

diff --git a/include/linux/dma/hsu.h b/include/linux/dma/hsu.h
new file mode 100644
index 000000000000..234393a6997b
--- /dev/null
+++ b/include/linux/dma/hsu.h
@@ -0,0 +1,48 @@
+/*
+ * Driver for the High Speed UART DMA
+ *
+ * Copyright (C) 2015 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _DMA_HSU_H
+#define _DMA_HSU_H
+
+#include <linux/device.h>
+#include <linux/interrupt.h>
+
+#include <linux/platform_data/dma-hsu.h>
+
+struct hsu_dma;
+
+/**
+ * struct hsu_dma_chip - representation of HSU DMA hardware
+ * @dev:                 struct device of the DMA controller
+ * @irq:                 irq line
+ * @regs:                memory mapped I/O space
+ * @length:              I/O space length
+ * @offset:              offset of the I/O space where registers are located
+ * @hsu:                 struct hsu_dma that is filed by ->probe()
+ * @pdata:               platform data for the DMA controller if provided
+ */
+struct hsu_dma_chip {
+        struct device                   *dev;
+        int                             irq;
+        void __iomem                    *regs;
+        unsigned int                    length;
+        unsigned int                    offset;
+        struct hsu_dma                  *hsu;
+        struct hsu_dma_platform_data    *pdata;
+};
+
+/* Export to the internal users */
+irqreturn_t hsu_dma_irq(struct hsu_dma_chip *chip, unsigned short nr);
+
+/* Export to the platform drivers */
+int hsu_dma_probe(struct hsu_dma_chip *chip);
+int hsu_dma_remove(struct hsu_dma_chip *chip);
+
+#endif /* _DMA_HSU_H */