linux-kernel - [PATCH v2 2/3] crypto: sa2ul: Support for per channel coherency

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Message-Id: <20210413091559.154169-3-vaibhavgupta40@gmail.com>
Date:   Tue, 13 Apr 2021 14:45:58 +0530
From:   Vaibhav Gupta <vaibhavgupta40@...il.com>
To:     Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Rob Herring <robh+dt@...nel.org>
Cc:     vaibhavgupta40@...il.com, Kishon Vijay Abraham <kishon@...com>,
        Sekhar Nori <nsekhar@...com>,
        Lokesh Vutla <lokeshvutla@...com>,
        Praneeth Bajjuri <praneeth@...com>,
        Gowtham Tammana <g-tammana@...com>,
        linux-crypto@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/3] crypto: sa2ul: Support for per channel coherency

From: Peter Ujfalusi <peter.ujfalusi@...com>

On AM64 the DMA channel for sa2ul can be configured to be coherent or
non coherent via DT binding.

Use the dmaengine_get_device_for_dma_api() to get the device pointer which
should be used for with the dma_api to use matching dma_ops for the
channel coherency/non coherency.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...com>
Signed-off-by: Vaibhav Gupta <v_gupta@...com>
---
 drivers/crypto/sa2ul.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/sa2ul.c b/drivers/crypto/sa2ul.c
index f300b0a5958a..6107bfea862d 100644
--- a/drivers/crypto/sa2ul.c
+++ b/drivers/crypto/sa2ul.c
@@ -1106,7 +1106,7 @@ static int sa_run(struct sa_req *req)
 	else
 		dma_rx = pdata->dma_rx1;
 
-	ddev = dma_rx->device->dev;
+	ddev = dmaengine_get_dma_device(pdata->dma_tx);
 	rxd->ddev = ddev;
 
 	memcpy(cmdl, sa_ctx->cmdl, sa_ctx->cmdl_size);
-- 
2.31.0