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crypto: caam - fix JR IO mapping if one fails 

If one of the JRs failed at init, the next JR used
the failed JR's IO space. The patch fixes this bug.

Signed-off-by: Tudor Ambarus <tudor-dan.ambarus@nxp.com>
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Tudor Ambarus 2017-02-10 14:07:16 +02:00 committed by Herbert Xu
parent b3b5fce736
commit 4d8348d8e3
1 changed files with 9 additions and 8 deletions
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17
drivers/crypto/caam/ctrl.c
View File

@ -308,10 +308,8 @@ static int caam_remove(struct platform_device *pdev)
ctrl = (struct caam_ctrl __iomem *)ctrlpriv->ctrl;
/* Remove platform devices for JobRs */
for (ring = 0; ring < ctrlpriv->total_jobrs; ring++) {
if (ctrlpriv->jrpdev[ring])
of_device_unregister(ctrlpriv->jrpdev[ring]);
}
for (ring = 0; ring < ctrlpriv->total_jobrs; ring++)
of_device_unregister(ctrlpriv->jrpdev[ring]);
/* De-initialize RNG state handles initialized by this driver. */
if (ctrlpriv->rng4_sh_init)
@ -423,7 +421,7 @@ DEFINE_SIMPLE_ATTRIBUTE(caam_fops_u64_ro, caam_debugfs_u64_get, NULL, "%llu\n");
/* Probe routine for CAAM top (controller) level */
static int caam_probe(struct platform_device *pdev)
{
int ret, ring, rspec, gen_sk, ent_delay = RTSDCTL_ENT_DLY_MIN;
int ret, ring, ridx, rspec, gen_sk, ent_delay = RTSDCTL_ENT_DLY_MIN;
u64 caam_id;
struct device *dev;
struct device_node *nprop, *np;
@ -618,6 +616,7 @@ static int caam_probe(struct platform_device *pdev)
}
ring = 0;
ridx = 0;
ctrlpriv->total_jobrs = 0;
for_each_available_child_of_node(nprop, np)
if (of_device_is_compatible(np, "fsl,sec-v4.0-job-ring") ||
@ -625,17 +624,19 @@ static int caam_probe(struct platform_device *pdev)
ctrlpriv->jrpdev[ring] =
of_platform_device_create(np, NULL, dev);
if (!ctrlpriv->jrpdev[ring]) {
pr_warn("JR%d Platform device creation error\n",
ring);
pr_warn("JR physical index %d: Platform device creation error\n",
ridx);
ridx++;
continue;
}
ctrlpriv->jr[ring] = (struct caam_job_ring __iomem __force *)
((__force uint8_t *)ctrl +
(ring + JR_BLOCK_NUMBER) *
(ridx + JR_BLOCK_NUMBER) *
BLOCK_OFFSET
);
ctrlpriv->total_jobrs++;
ring++;
ridx++;
}
/* Check to see if QI present. If so, enable */