40 	struct ingenic_trng *trng = container_of(rng, struct ingenic_trng, rng);  in ingenic_trng_init()  local
43 	ctrl = readl(trng->base + TRNG_REG_CFG_OFFSET);  in ingenic_trng_init()
45 	writel(ctrl, trng->base + TRNG_REG_CFG_OFFSET);  in ingenic_trng_init()
52 	struct ingenic_trng *trng = container_of(rng, struct ingenic_trng, rng);  in ingenic_trng_cleanup()  local
55 	ctrl = readl(trng->base + TRNG_REG_CFG_OFFSET);  in ingenic_trng_cleanup()
57 	writel(ctrl, trng->base + TRNG_REG_CFG_OFFSET);  in ingenic_trng_cleanup()
62 	struct ingenic_trng *trng = container_of(rng, struct ingenic_trng, rng);  in ingenic_trng_read()  local
67 	ret = readl_poll_timeout(trng->base + TRNG_REG_STATUS_OFFSET, status,  in ingenic_trng_read()
74 	*data = readl(trng->base + TRNG_REG_RANDOMNUM_OFFSET);  in ingenic_trng_read()
81 	struct ingenic_trng *trng;  in ingenic_trng_probe()  local
84 	trng = devm_kzalloc(&pdev->dev, sizeof(*trng), GFP_KERNEL);  in ingenic_trng_probe()
85 	if (!trng)  in ingenic_trng_probe()
88 	trng->base = devm_platform_ioremap_resource(pdev, 0);  in ingenic_trng_probe()
89 	if (IS_ERR(trng->base)) {  in ingenic_trng_probe()
91 		ret = PTR_ERR(trng->base);  in ingenic_trng_probe()
92 		return PTR_ERR(trng->base);  in ingenic_trng_probe()
95 	trng->clk = devm_clk_get(&pdev->dev, NULL);  in ingenic_trng_probe()
96 	if (IS_ERR(trng->clk)) {  in ingenic_trng_probe()
97 		ret = PTR_ERR(trng->clk);  in ingenic_trng_probe()
99 		return PTR_ERR(trng->clk);  in ingenic_trng_probe()
102 	ret = clk_prepare_enable(trng->clk);  in ingenic_trng_probe()
108 	trng->rng.name = pdev->name;  in ingenic_trng_probe()
109 	trng->rng.init = ingenic_trng_init;  in ingenic_trng_probe()
110 	trng->rng.cleanup = ingenic_trng_cleanup;  in ingenic_trng_probe()
111 	trng->rng.read = ingenic_trng_read;  in ingenic_trng_probe()
113 	ret = hwrng_register(&trng->rng);  in ingenic_trng_probe()
119 	platform_set_drvdata(pdev, trng);  in ingenic_trng_probe()
125 	clk_disable_unprepare(trng->clk);  in ingenic_trng_probe()
131 	struct ingenic_trng *trng = platform_get_drvdata(pdev);  in ingenic_trng_remove()  local
134 	hwrng_unregister(&trng->rng);  in ingenic_trng_remove()
136 	ctrl = readl(trng->base + TRNG_REG_CFG_OFFSET);  in ingenic_trng_remove()
138 	writel(ctrl, trng->base + TRNG_REG_CFG_OFFSET);  in ingenic_trng_remove()
140 	clk_disable_unprepare(trng->clk);  in ingenic_trng_remove()