[PATCH 02/12] crypto: caam - use devres to unmap JR's registers

[Andrey Smirnov]

Use devres to unmap memory and drop explicit de-initialization
code.

NOTE: There's no corresponding unmapping code in caam_jr_remove which
seems like a resource leak.

Signed-off-by: Andrey Smirnov <andrew.smir...@gmail.com>
Cc: Chris Healy <cphe...@gmail.com>
Cc: Lucas Stach <l.st...@pengutronix.de>
Cc: Horia Geantă <horia.gea...@nxp.com>
Cc: Herbert Xu <herb...@gondor.apana.org.au>
Cc: Iuliana Prodan <iuliana.pro...@nxp.com>
Cc: linux-crypto@vger.kernel.org
Cc: linux-ker...@vger.kernel.org
---
 drivers/crypto/caam/jr.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/drivers/crypto/caam/jr.c b/drivers/crypto/caam/jr.c
index 417ad52615c6..7947d61a25cf 100644
--- a/drivers/crypto/caam/jr.c
+++ b/drivers/crypto/caam/jr.c
@@ -498,6 +498,7 @@ static int caam_jr_probe(struct platform_device *pdev)
        struct caam_job_ring __iomem *ctrl;
        struct caam_drv_private_jr *jrpriv;
        static int total_jobrs;
+       struct resource *r;
        int error;
 
        jrdev = &pdev->dev;
@@ -513,9 +514,15 @@ static int caam_jr_probe(struct platform_device *pdev)
        nprop = pdev->dev.of_node;
        /* Get configuration properties from device tree */
        /* First, get register page */
-       ctrl = of_iomap(nprop, 0);
+       r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+       if (!r) {
+               dev_err(jrdev, "platform_get_resource() failed\n");
+               return -ENOMEM;
+       }
+
+       ctrl = devm_ioremap(jrdev, r->start, resource_size(r));
        if (!ctrl) {
-               dev_err(jrdev, "of_iomap() failed\n");
+               dev_err(jrdev, "devm_ioremap() failed\n");
                return -ENOMEM;
        }
 
@@ -525,7 +532,6 @@ static int caam_jr_probe(struct platform_device *pdev)
        if (error) {
                dev_err(jrdev, "dma_set_mask_and_coherent failed (%d)\n",
                        error);
-               iounmap(ctrl);
                return error;
        }
 
@@ -536,7 +542,6 @@ static int caam_jr_probe(struct platform_device *pdev)
        error = caam_jr_init(jrdev); /* now turn on hardware */
        if (error) {
                irq_dispose_mapping(jrpriv->irq);
-               iounmap(ctrl);
                return error;
        }
 
-- 
2.21.0