| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame] | 1 | From 4f59ceff69a20d28881848140ef5fc2888042e62 Mon Sep 17 00:00:00 2001 |
| 2 | From: Gagandeep Singh <g.singh@nxp.com> |
| 3 | Date: Mon, 17 Feb 2020 16:41:01 +0000 |
| 4 | Subject: [PATCH] LF-933: crypto: caam: fix iosource busy issue |
| 5 | |
| 6 | The caam controller driver claims the ownership of the |
| 7 | whole caam register space due to which while binding the |
| 8 | Job Ring to fsl-jr-uio driver, it returns IOSOURCE_BUSY |
| 9 | error. |
| 10 | |
| 11 | This patch replaces devm_request_mem_region() API with |
| 12 | platform_get_resource() to avoid this issue. |
| 13 | |
| 14 | Fixes: eb5e94d4624a ("crypto: caam - use devres to unmap memory") |
| 15 | |
| 16 | Signed-off-by: Gagandeep Singh <g.singh@nxp.com> |
| 17 | Acked-by: Horia Geanta <horia.geanta@nxp.com> |
| 18 | --- |
| 19 | drivers/crypto/caam/fsl_jr_uio.c | 7 +++---- |
| 20 | 1 file changed, 3 insertions(+), 4 deletions(-) |
| 21 | |
| 22 | --- a/drivers/crypto/caam/fsl_jr_uio.c |
| 23 | +++ b/drivers/crypto/caam/fsl_jr_uio.c |
| 24 | @@ -187,11 +187,10 @@ static int fsl_jr_probe(struct platform_ |
| 25 | goto abort; |
| 26 | } |
| 27 | |
| 28 | - jr_dev->res = devm_request_mem_region(&dev->dev, regs.start, |
| 29 | - regs.end - regs.start + 1, |
| 30 | - jr_dev->info.name); |
| 31 | + |
| 32 | + jr_dev->res = platform_get_resource(dev, IORESOURCE_MEM, 0); |
| 33 | if (unlikely(!jr_dev->res)) { |
| 34 | - dev_err(jr_dev->dev, "devm_request_mem_region failed\n"); |
| 35 | + dev_err(jr_dev->dev, "platform_get_resource() failed\n"); |
| 36 | ret = -ENOMEM; |
| 37 | goto abort; |
| 38 | } |