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From: Biju Das <biju.das.jz@bp.renesas.com>
To: Vinod Koul <vkoul@kernel.org>
Cc: Biju Das <biju.das.jz@bp.renesas.com>,
	dmaengine@vger.kernel.org,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Chris Paterson <Chris.Paterson2@renesas.com>,
	Biju Das <biju.das@bp.renesas.com>,
	Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@bp.renesas.com>,
	linux-renesas-soc@vger.kernel.org
Subject: [PATCH v5 2/3] dmaengine: Extend the dma_slave_width for 128 bytes
Date: Thu, 29 Jul 2021 09:25:19 +0100	[thread overview]
Message-ID: <20210729082520.26186-3-biju.das.jz@bp.renesas.com> (raw)
In-Reply-To: <20210729082520.26186-1-biju.das.jz@bp.renesas.com>

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 --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
-- 
2.17.1


  parent reply	other threads:[~2021-07-29  8:25 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-29  8:25 [PATCH v5 0/3] Add RZ/G2L DMAC support Biju Das
2021-07-29  8:25 ` [PATCH v5 1/3] dt-bindings: dma: Document RZ/G2L bindings Biju Das
2021-07-29 18:00   ` Rob Herring
2021-07-29  8:25 ` Biju Das [this message]
2021-07-29  8:25 ` [PATCH v5 3/3] drivers: dma: sh: Add DMAC driver for RZ/G2L SoC Biju Das
2021-07-29 11:33   ` kernel test robot
2021-07-29 13:26     ` Biju Das
2021-07-29 13:50       ` Biju Das
2021-07-29 14:08         ` Biju Das

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