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path: root/drivers/crypto/caam/caampkc.c
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Diffstat (limited to 'drivers/crypto/caam/caampkc.c')
-rw-r--r--drivers/crypto/caam/caampkc.c50
1 files changed, 5 insertions, 45 deletions
diff --git a/drivers/crypto/caam/caampkc.c b/drivers/crypto/caam/caampkc.c
index d97ffb03afc0..34e37f9bd828 100644
--- a/drivers/crypto/caam/caampkc.c
+++ b/drivers/crypto/caam/caampkc.c
@@ -1013,41 +1013,12 @@ static struct akcipher_alg caam_rsa = {
};
/* Public Key Cryptography module initialization handler */
-static int __init caam_pkc_init(void)
+int caam_pkc_init(struct device *ctrldev)
{
- struct device_node *dev_node;
- struct platform_device *pdev;
- struct device *ctrldev;
- struct caam_drv_private *priv;
+ struct caam_drv_private *priv = dev_get_drvdata(ctrldev);
u32 pk_inst;
int err;
- dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec-v4.0");
- if (!dev_node) {
- dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec4.0");
- if (!dev_node)
- return -ENODEV;
- }
-
- pdev = of_find_device_by_node(dev_node);
- if (!pdev) {
- of_node_put(dev_node);
- return -ENODEV;
- }
-
- ctrldev = &pdev->dev;
- priv = dev_get_drvdata(ctrldev);
- of_node_put(dev_node);
-
- /*
- * If priv is NULL, it's probably because the caam driver wasn't
- * properly initialized (e.g. RNG4 init failed). Thus, bail out here.
- */
- if (!priv) {
- err = -ENODEV;
- goto out_put_dev;
- }
-
/* Determine public key hardware accelerator presence. */
if (priv->era < 10)
pk_inst = (rd_reg32(&priv->ctrl->perfmon.cha_num_ls) &
@@ -1056,10 +1027,8 @@ static int __init caam_pkc_init(void)
pk_inst = rd_reg32(&priv->ctrl->vreg.pkha) & CHA_VER_NUM_MASK;
/* Do not register algorithms if PKHA is not present. */
- if (!pk_inst) {
- err = -ENODEV;
- goto out_put_dev;
- }
+ if (!pk_inst)
+ return 0;
err = crypto_register_akcipher(&caam_rsa);
if (err)
@@ -1068,19 +1037,10 @@ static int __init caam_pkc_init(void)
else
dev_info(ctrldev, "caam pkc algorithms registered in /proc/crypto\n");
-out_put_dev:
- put_device(ctrldev);
return err;
}
-static void __exit caam_pkc_exit(void)
+void caam_pkc_exit(void)
{
crypto_unregister_akcipher(&caam_rsa);
}
-
-module_init(caam_pkc_init);
-module_exit(caam_pkc_exit);
-
-MODULE_LICENSE("Dual BSD/GPL");
-MODULE_DESCRIPTION("FSL CAAM support for PKC functions of crypto API");
-MODULE_AUTHOR("Freescale Semiconductor");