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From 4f59ceff69a20d28881848140ef5fc2888042e62 Mon Sep 17 00:00:00 2001
From: Gagandeep Singh <g.singh@nxp.com>
Date: Mon, 17 Feb 2020 16:41:01 +0000
Subject: [PATCH] LF-933: crypto: caam: fix iosource busy issue
The caam controller driver claims the ownership of the
whole caam register space due to which while binding the
Job Ring to fsl-jr-uio driver, it returns IOSOURCE_BUSY
error.
This patch replaces devm_request_mem_region() API with
platform_get_resource() to avoid this issue.
Fixes: eb5e94d4624a ("crypto: caam - use devres to unmap memory")
Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
Acked-by: Horia Geanta <horia.geanta@nxp.com>
---
drivers/crypto/caam/fsl_jr_uio.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
--- a/drivers/crypto/caam/fsl_jr_uio.c
+++ b/drivers/crypto/caam/fsl_jr_uio.c
@@ -187,11 +187,10 @@ static int fsl_jr_probe(struct platform_
goto abort;
}
- jr_dev->res = devm_request_mem_region(&dev->dev, regs.start,
- regs.end - regs.start + 1,
- jr_dev->info.name);
+
+ jr_dev->res = platform_get_resource(dev, IORESOURCE_MEM, 0);
if (unlikely(!jr_dev->res)) {
- dev_err(jr_dev->dev, "devm_request_mem_region failed\n");
+ dev_err(jr_dev->dev, "platform_get_resource() failed\n");
ret = -ENOMEM;
goto abort;
}
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