18 /* RNG register offsets */
36 	struct hwrng rng;  member
39 static int ingenic_rng_init(struct hwrng *rng)  in ingenic_rng_init()  argument
41 	struct ingenic_rng *priv = container_of(rng, struct ingenic_rng, rng);  in ingenic_rng_init()
48 static void ingenic_rng_cleanup(struct hwrng *rng)  in ingenic_rng_cleanup()  argument
50 	struct ingenic_rng *priv = container_of(rng, struct ingenic_rng, rng);  in ingenic_rng_cleanup()
55 static int ingenic_rng_read(struct hwrng *rng, void *buf, size_t max, bool wait)  in ingenic_rng_read()  argument
57 	struct ingenic_rng *priv = container_of(rng, struct ingenic_rng, rng);  in ingenic_rng_read()
66 			pr_err("%s: Wait for RNG data ready timeout\n", __func__);  in ingenic_rng_read()
71 		 * A delay is required so that the current RNG data is not bit shifted  in ingenic_rng_read()
72 		 * version of previous RNG data which could happen if random data is  in ingenic_rng_read()
94 		pr_err("%s: Failed to map RNG registers\n", __func__);  in ingenic_rng_probe()
100 	priv->rng.name = pdev->name;  in ingenic_rng_probe()
101 	priv->rng.init = ingenic_rng_init;  in ingenic_rng_probe()
102 	priv->rng.cleanup = ingenic_rng_cleanup;  in ingenic_rng_probe()
103 	priv->rng.read = ingenic_rng_read;  in ingenic_rng_probe()
105 	ret = hwrng_register(&priv->rng);  in ingenic_rng_probe()
113 	dev_info(&pdev->dev, "Ingenic RNG driver registered\n");  in ingenic_rng_probe()
121 	hwrng_unregister(&priv->rng);  in ingenic_rng_remove()
129 	{ .compatible = "ingenic,jz4780-rng", .data = (void *) ID_JZ4780 },
130 	{ .compatible = "ingenic,x1000-rng", .data = (void *) ID_X1000 },
139 		.name	= "ingenic-rng",