From: Gary R Hook <gary.hook@amd.com>
Date: Wed, 27 Jul 2016 00:10:40 +0000 (-0500)
Subject: crypto: ccp - Enable DMA service on a v5 CCP
X-Git-Tag: v4.1.12-111.0.20170907_2225~62
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=52f16acebf2d53444fe51d85516d792e726662ef;p=users%2Fjedix%2Flinux-maple.git

crypto: ccp - Enable DMA service on a v5 CCP

Orabug: 26644685

Every CCP is capable of providing general DMA services.
Register the device as a provider.

Signed-off-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
(cherry picked from commit 99d90b2ebd8b327c0c496798db99009b30c70945)
Signed-off-by: Somasundaram Krishnasamy <somasundaram.krishnasamy@oracle.com>
Reviewed-by: Jack Vogel <jack.vogel@oracle.com>
---

diff --git a/drivers/crypto/ccp/ccp-dev-v5.c b/drivers/crypto/ccp/ccp-dev-v5.c
index ddce2205e5faf..40867141aea8e 100644
--- a/drivers/crypto/ccp/ccp-dev-v5.c
+++ b/drivers/crypto/ccp/ccp-dev-v5.c
@@ -832,6 +832,11 @@ static int ccp5_init(struct ccp_device *ccp)
 	if (ret)
 		goto e_kthread;
 
+	/* Register the DMA engine support */
+	ret = ccp_dmaengine_register(ccp);
+	if (ret)
+		goto e_hwrng;
+
 	return 0;
 
 e_kthread:
@@ -856,6 +861,9 @@ static void ccp5_destroy(struct ccp_device *ccp)
 	struct ccp_cmd *cmd;
 	unsigned int i;
 
+	/* Unregister the DMA engine */
+	ccp_dmaengine_unregister(ccp);
+
 	/* Unregister the RNG */
 	ccp_unregister_rng(ccp);