diff mbox series

[v5,2/3] dmaengine: Extend the dma_slave_width for 128 bytes

Message ID 20210729082520.26186-3-biju.das.jz@bp.renesas.com (mailing list archive)
State Superseded
Headers show
Series Add RZ/G2L DMAC support | expand

Commit Message

Biju Das July 29, 2021, 8:25 a.m. UTC 
Add DMA_SLAVE_BUSWIDTH_128_BYTES to dma_slave_width for DMA engines
and users to select 128 bytes as bus width.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
v1:-
 * New patch
---
 include/linux/dmaengine.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 93c3ca5fdafd..e5c2c9e71bf1 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -380,6 +380,7 @@  enum dma_slave_buswidth {
 	DMA_SLAVE_BUSWIDTH_16_BYTES = 16,
 	DMA_SLAVE_BUSWIDTH_32_BYTES = 32,
 	DMA_SLAVE_BUSWIDTH_64_BYTES = 64,
+	DMA_SLAVE_BUSWIDTH_128_BYTES = 128,
 };
 
 /**
@@ -398,7 +399,7 @@  enum dma_slave_buswidth {
  * @src_addr_width: this is the width in bytes of the source (RX)
  * register where DMA data shall be read. If the source
  * is memory this may be ignored depending on architecture.
- * Legal values: 1, 2, 3, 4, 8, 16, 32, 64.
+ * Legal values: 1, 2, 3, 4, 8, 16, 32, 64, 128.
  * @dst_addr_width: same as src_addr_width but for destination
  * target (TX) mutatis mutandis.
  * @src_maxburst: the maximum number of words (note: words, as in