Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 31 insertions, 0 deletions

diff --git a/drivers/thunderbolt/dma_port.h b/drivers/thunderbolt/dma_port.h
new file mode 100644
index 0000000000..7deadd97ce
--- /dev/null
+++ b/drivers/thunderbolt/dma_port.h
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Thunderbolt DMA configuration based mailbox support
+ *
+ * Copyright (C) 2017, Intel Corporation
+ * Authors: Michael Jamet <michael.jamet@intel.com>
+ *          Mika Westerberg <mika.westerberg@linux.intel.com>
+ */
+
+#ifndef DMA_PORT_H_
+#define DMA_PORT_H_
+
+#include "tb.h"
+
+struct tb_switch;
+struct tb_dma_port;
+
+#define DMA_PORT_CSS_ADDRESS		0x3fffff
+#define DMA_PORT_CSS_MAX_SIZE		SZ_128
+
+struct tb_dma_port *dma_port_alloc(struct tb_switch *sw);
+void dma_port_free(struct tb_dma_port *dma);
+int dma_port_flash_read(struct tb_dma_port *dma, unsigned int address,
+			void *buf, size_t size);
+int dma_port_flash_update_auth(struct tb_dma_port *dma);
+int dma_port_flash_update_auth_status(struct tb_dma_port *dma, u32 *status);
+int dma_port_flash_write(struct tb_dma_port *dma, unsigned int address,
+			 const void *buf, size_t size);
+int dma_port_power_cycle(struct tb_dma_port *dma);
+
+#endif