char/hw_random/ingenic-trng.c

37 	struct ingenic_trng *trng = container_of(rng, struct ingenic_trng, rng);
40 	ctrl = readl(trng->base + TRNG_REG_CFG_OFFSET);
42 	writel(ctrl, trng->base + TRNG_REG_CFG_OFFSET);
49 	struct ingenic_trng *trng = container_of(rng, struct ingenic_trng, rng);
52 	ctrl = readl(trng->base + TRNG_REG_CFG_OFFSET);
54 	writel(ctrl, trng->base + TRNG_REG_CFG_OFFSET);
59 	struct ingenic_trng *trng = container_of(rng, struct ingenic_trng, rng);
64 	ret = readl_poll_timeout(trng->base + TRNG_REG_STATUS_OFFSET, status,
71 	*data = readl(trng->base + TRNG_REG_RANDOMNUM_OFFSET);
78 	struct ingenic_trng *trng;
82 	trng = devm_kzalloc(&pdev->dev, sizeof(*trng), GFP_KERNEL);
83 	if (!trng)
86 	trng->base = devm_platform_ioremap_resource(pdev, 0);
87 	if (IS_ERR(trng->base))
88 		return dev_err_probe(&pdev->dev, PTR_ERR(trng->base),
96 	trng->rng.name = pdev->name;
97 	trng->rng.init = ingenic_trng_init;
98 	trng->rng.cleanup = ingenic_trng_cleanup;
99 	trng->rng.read = ingenic_trng_read;
101 	ret = devm_hwrng_register(&pdev->dev, &trng->rng);
105 	platform_set_drvdata(pdev, trng);
120 		.name	= "ingenic-trng",