v4.19.13 snapshot.
diff --git a/include/linux/pch_dma.h b/include/linux/pch_dma.h
new file mode 100644
index 0000000..fdafe52
--- /dev/null
+++ b/include/linux/pch_dma.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2010 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.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef PCH_DMA_H
+#define PCH_DMA_H
+
+#include <linux/dmaengine.h>
+
+enum pch_dma_width {
+ PCH_DMA_WIDTH_1_BYTE,
+ PCH_DMA_WIDTH_2_BYTES,
+ PCH_DMA_WIDTH_4_BYTES,
+};
+
+struct pch_dma_slave {
+ struct device *dma_dev;
+ unsigned int chan_id;
+ dma_addr_t tx_reg;
+ dma_addr_t rx_reg;
+ enum pch_dma_width width;
+};
+
+#endif