83 struct ks_sa_rng {  struct
117 	struct ks_sa_rng *ks_sa_rng = dev_get_drvdata(dev);  in ks_sa_rng_init()  local
118 	unsigned long clk_rate = clk_get_rate(ks_sa_rng->clk);  in ks_sa_rng_init()
121 	regmap_write_bits(ks_sa_rng->regmap_cfg, SA_CMD_STATUS_OFS,  in ks_sa_rng_init()
126 	writel(0, &ks_sa_rng->reg_rng->control);  in ks_sa_rng_init()
128 	writel(value, &ks_sa_rng->reg_rng->control);  in ks_sa_rng_init()
137 	writel(value, &ks_sa_rng->reg_rng->config);  in ks_sa_rng_init()
140 	writel(0, &ks_sa_rng->reg_rng->intmask);  in ks_sa_rng_init()
143 	value = readl(&ks_sa_rng->reg_rng->control);  in ks_sa_rng_init()
145 	writel(value, &ks_sa_rng->reg_rng->control);  in ks_sa_rng_init()
147 	ks_sa_rng->refill_delay_ns = refill_delay_ns(clk_rate);  in ks_sa_rng_init()
148 	ks_sa_rng->ready_ts = ktime_get_ns() +  in ks_sa_rng_init()
157 	struct ks_sa_rng *ks_sa_rng = dev_get_drvdata(dev);  in ks_sa_rng_cleanup()  local
160 	writel(0, &ks_sa_rng->reg_rng->control);  in ks_sa_rng_cleanup()
161 	regmap_write_bits(ks_sa_rng->regmap_cfg, SA_CMD_STATUS_OFS,  in ks_sa_rng_cleanup()
168 	struct ks_sa_rng *ks_sa_rng = dev_get_drvdata(dev);  in ks_sa_rng_data_read()  local
171 	data[0] = readl(&ks_sa_rng->reg_rng->output_l);  in ks_sa_rng_data_read()
172 	data[1] = readl(&ks_sa_rng->reg_rng->output_h);  in ks_sa_rng_data_read()
174 	writel(TRNG_INTACK_REG_READY, &ks_sa_rng->reg_rng->intack);  in ks_sa_rng_data_read()
175 	ks_sa_rng->ready_ts = ktime_get_ns() + ks_sa_rng->refill_delay_ns;  in ks_sa_rng_data_read()
183 	struct ks_sa_rng *ks_sa_rng = dev_get_drvdata(dev);  in ks_sa_rng_data_present()  local
189 	if (wait && now < ks_sa_rng->ready_ts) {  in ks_sa_rng_data_present()
192 			DIV_ROUND_UP((u32)(ks_sa_rng->ready_ts - now), 1000);  in ks_sa_rng_data_present()
198 		ready = readl(&ks_sa_rng->reg_rng->status);  in ks_sa_rng_data_present()
212 	struct ks_sa_rng	*ks_sa_rng;  in ks_sa_rng_probe()  local
216 	ks_sa_rng = devm_kzalloc(dev, sizeof(*ks_sa_rng), GFP_KERNEL);  in ks_sa_rng_probe()
217 	if (!ks_sa_rng)  in ks_sa_rng_probe()
220 	ks_sa_rng->dev = dev;  in ks_sa_rng_probe()
221 	ks_sa_rng->rng = (struct hwrng) {  in ks_sa_rng_probe()
228 	ks_sa_rng->rng.priv = (unsigned long)dev;  in ks_sa_rng_probe()
230 	ks_sa_rng->reg_rng = devm_platform_ioremap_resource(pdev, 0);  in ks_sa_rng_probe()
231 	if (IS_ERR(ks_sa_rng->reg_rng))  in ks_sa_rng_probe()
232 		return PTR_ERR(ks_sa_rng->reg_rng);  in ks_sa_rng_probe()
234 	ks_sa_rng->regmap_cfg =  in ks_sa_rng_probe()
238 	if (IS_ERR(ks_sa_rng->regmap_cfg)) {  in ks_sa_rng_probe()
251 	platform_set_drvdata(pdev, ks_sa_rng);  in ks_sa_rng_probe()
253 	return devm_hwrng_register(&pdev->dev, &ks_sa_rng->rng);  in ks_sa_rng_probe()