From 4f59ceff69a20d28881848140ef5fc2888042e62 Mon Sep 17 00:00:00 2001 From: Gagandeep Singh 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 Acked-by: Horia Geanta --- 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; }