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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Iuliana Prodan <iuliana.prodan@nxp.com>,
        Andrey Smirnov <andrew.smirnov@gmail.com>,
        Alison Wang <alison.wang@nxp.com>,
        =?UTF-8?q?Horia=20Geant=C4=83?= <horia.geanta@nxp.com>,
        Herbert Xu <herbert@gondor.apana.org.au>
Subject: [PATCH 5.5 52/56] crypto: caam - do not reset pointer size from MCFGR register
Date:   Thu, 30 Jan 2020 19:39:09 +0100
Message-Id: <20200130183618.226576789@linuxfoundation.org>
In-Reply-To: <20200130183608.849023566@linuxfoundation.org>
References: <20200130183608.849023566@linuxfoundation.org>
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From: Iuliana Prodan <iuliana.prodan@nxp.com>

commit 7278fa25aa0ebcc0e62c39b12071069df13f7e77 upstream.

In commit 'a1cf573ee95 ("crypto: caam - select DMA address size at runtime")'
CAAM pointer size (caam_ptr_size) is changed from
sizeof(dma_addr_t) to runtime value computed from MCFGR register.
Therefore, do not reset MCFGR[PS].

Fixes: a1cf573ee95 ("crypto: caam - select DMA address size at runtime")
Signed-off-by: Iuliana Prodan <iuliana.prodan@nxp.com>
Cc: <stable@vger.kernel.org>
Cc: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Alison Wang <alison.wang@nxp.com>
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/crypto/caam/ctrl.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -671,11 +671,9 @@ static int caam_probe(struct platform_de
 	of_node_put(np);
 
 	if (!ctrlpriv->mc_en)
-		clrsetbits_32(&ctrl->mcr, MCFGR_AWCACHE_MASK | MCFGR_LONG_PTR,
+		clrsetbits_32(&ctrl->mcr, MCFGR_AWCACHE_MASK,
 			      MCFGR_AWCACHE_CACH | MCFGR_AWCACHE_BUFF |
-			      MCFGR_WDENABLE | MCFGR_LARGE_BURST |
-			      (sizeof(dma_addr_t) == sizeof(u64) ?
-			       MCFGR_LONG_PTR : 0));
+			      MCFGR_WDENABLE | MCFGR_LARGE_BURST);
 
 	handle_imx6_err005766(&ctrl->mcr);