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crypto: caam - fix ERA property reading

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In order to ensure that the ERA property is properly read from DT
on all platforms, of_property_read* function needs to be used.

Signed-off-by: Alex Porosanu <alexandru.porosanu@freescale.com>
Signed-off-by: Horia Geant? <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Alex Porosanu 2015-07-17 16:54:51 +03:00 committed by Herbert Xu
parent b1ccc8f4b6
commit e27513eb61
1 changed files with 7 additions and 7 deletions
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14
drivers/crypto/caam/ctrl.c
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@ -370,14 +370,14 @@ static void kick_trng(struct platform_device *pdev, int ent_delay)
int caam_get_era(void)
{
struct device_node *caam_node;
for_each_compatible_node(caam_node, NULL, "fsl,sec-v4.0") {
const uint32_t *prop = (uint32_t *)of_get_property(caam_node,
"fsl,sec-era",
NULL);
return prop ? *prop : -ENOTSUPP;
}
int ret;
u32 prop;
return -ENOTSUPP;
caam_node = of_find_compatible_node(NULL, NULL, "fsl,sec-v4.0");
ret = of_property_read_u32(caam_node, "fsl,sec-era", &prop);
of_node_put(caam_node);
return IS_ERR_VALUE(ret) ? -ENOTSUPP : prop;
}
EXPORT_SYMBOL(caam_get_era);