static int __init jent_mod_init(void)
{
int ret = 0;
ret = jent_entropy_init();
if (ret) {
pr_info("jitterentropy: Initialization failed with host not compliant with requirements: %d\n", ret);
return -EFAULT;
}
return crypto_register_rng(&jent_alg);
}
int crypto_register_rngs(struct rng_alg *algs, int count)
{
int i, ret;
for (i = 0; i < count; i++) {
ret = crypto_register_rng(algs + i);
if (ret)
goto err;
}
return 0;
err:
for (--i; i >= 0; --i)
crypto_unregister_rng(algs + i);
return ret;
}
static int exynos_rng_probe(struct platform_device *pdev)
{
struct exynos_rng_dev *rng;
struct resource *res;
int ret;
if (exynos_rng_dev)
return -EEXIST;
rng = devm_kzalloc(&pdev->dev, sizeof(*rng), GFP_KERNEL);
if (!rng)
return -ENOMEM;
rng->type = (enum exynos_prng_type)of_device_get_match_data(&pdev->dev);
mutex_init(&rng->lock);
rng->dev = &pdev->dev;
rng->clk = devm_clk_get(&pdev->dev, "secss");
if (IS_ERR(rng->clk)) {
dev_err(&pdev->dev, "Couldn't get clock.\n");
return PTR_ERR(rng->clk);
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
rng->mem = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(rng->mem))
return PTR_ERR(rng->mem);
platform_set_drvdata(pdev, rng);
exynos_rng_dev = rng;
ret = crypto_register_rng(&exynos_rng_alg);
if (ret) {
dev_err(&pdev->dev,
"Couldn't register rng crypto alg: %d\n", ret);
exynos_rng_dev = NULL;
}
return ret;
}
static int qcom_rng_probe(struct platform_device *pdev)
{
struct resource *res;
struct qcom_rng *rng;
int ret;
rng = devm_kzalloc(&pdev->dev, sizeof(*rng), GFP_KERNEL);
if (!rng)
return -ENOMEM;
platform_set_drvdata(pdev, rng);
mutex_init(&rng->lock);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
rng->base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(rng->base))
return PTR_ERR(rng->base);
/* ACPI systems have clk already on, so skip clk_get */
if (!has_acpi_companion(&pdev->dev)) {
rng->clk = devm_clk_get(&pdev->dev, "core");
if (IS_ERR(rng->clk))
return PTR_ERR(rng->clk);
}
rng->skip_init = (unsigned long)device_get_match_data(&pdev->dev);
qcom_rng_dev = rng;
ret = crypto_register_rng(&qcom_rng_alg);
if (ret) {
dev_err(&pdev->dev, "Register crypto rng failed: %d\n", ret);
qcom_rng_dev = NULL;
}
return ret;
}
