dmaengine: sdxi: ring: Add description, AMD copyright stmts

nathanlynch · nathanlynch · commit bb80a13140f3 · 2026-03-24T14:44:09.000-05:00
Signed-off-by: Nathan Lynch &lt;nathan.lynch@amd.com&gt;
diff --git a/drivers/dma/sdxi/ring.c b/drivers/dma/sdxi/ring.c
@@ -1,4 +1,11 @@
 // SPDX-License-Identifier: GPL-2.0-only
+/*
+ * SDXI descriptor ring state management. Handles advancing the write
+ * index correctly and supplies "reservations" i.e. slices of the ring
+ * to be filled with descriptors.
+ *
+ * Copyright (C) 2026 Advanced Micro Devices, Inc.
+ */
 #include <kunit/visibility.h>
 #include <linux/io-64-nonatomic-lo-hi.h>
 #include <linux/lockdep.h>
diff --git a/drivers/dma/sdxi/ring.h b/drivers/dma/sdxi/ring.h
@@ -1,4 +1,5 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
+/* Copyright (C) 2026 Advanced Micro Devices, Inc. */
 #ifndef DMA_SDXI_RING_H
 #define DMA_SDXI_RING_H
 

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,5 @@`
`1`	`1`	`/* SPDX-License-Identifier: GPL-2.0-only */`
	`2`	`+/* Copyright (C) 2026 Advanced Micro Devices, Inc. */`
`2`	`3`	`#ifndef DMA_SDXI_RING_H`
`3`	`4`	`#define DMA_SDXI_RING_H`
`4`	`5`