83 static int sc27xx_efuse_lock(struct sc27xx_efuse *efuse)  in sc27xx_efuse_lock()  argument
87 	mutex_lock(&efuse->mutex);  in sc27xx_efuse_lock()
89 	ret = hwspin_lock_timeout_raw(efuse->hwlock,  in sc27xx_efuse_lock()
92 		dev_err(efuse->dev, "timeout to get the hwspinlock\n");  in sc27xx_efuse_lock()
93 		mutex_unlock(&efuse->mutex);  in sc27xx_efuse_lock()
100 static void sc27xx_efuse_unlock(struct sc27xx_efuse *efuse)  in sc27xx_efuse_unlock()  argument
102 	hwspin_unlock_raw(efuse->hwlock);  in sc27xx_efuse_unlock()
103 	mutex_unlock(&efuse->mutex);  in sc27xx_efuse_unlock()
106 static int sc27xx_efuse_poll_status(struct sc27xx_efuse *efuse, u32 bits)  in sc27xx_efuse_poll_status()  argument
111 	ret = regmap_read_poll_timeout(efuse->regmap,  in sc27xx_efuse_poll_status()
112 				       efuse->base + SC27XX_EFUSE_STATUS,  in sc27xx_efuse_poll_status()
117 		dev_err(efuse->dev, "timeout to update the efuse status\n");  in sc27xx_efuse_poll_status()
126 	struct sc27xx_efuse *efuse = context;  in sc27xx_efuse_read()  local
135 	ret = sc27xx_efuse_lock(efuse);  in sc27xx_efuse_read()
140 	ret = regmap_update_bits(efuse->regmap, efuse->var_data->module_en,  in sc27xx_efuse_read()
149 	ret = sc27xx_efuse_poll_status(efuse, SC27XX_EFUSE_STANDBY);  in sc27xx_efuse_read()
154 	ret = regmap_write(efuse->regmap,  in sc27xx_efuse_read()
155 			   efuse->base + SC27XX_EFUSE_BLOCK_INDEX,  in sc27xx_efuse_read()
161 	ret = regmap_update_bits(efuse->regmap,  in sc27xx_efuse_read()
162 				 efuse->base + SC27XX_EFUSE_MODE_CTRL,  in sc27xx_efuse_read()
172 	ret = sc27xx_efuse_poll_status(efuse, SC27XX_EFUSE_RD_DONE);  in sc27xx_efuse_read()
177 	ret = regmap_read(efuse->regmap, efuse->base + SC27XX_EFUSE_DATA_RD,  in sc27xx_efuse_read()
183 	ret = regmap_update_bits(efuse->regmap,  in sc27xx_efuse_read()
184 				 efuse->base + SC27XX_EFUSE_MODE_CTRL,  in sc27xx_efuse_read()
190 	regmap_update_bits(efuse->regmap, efuse->var_data->module_en, SC27XX_EFUSE_EN, 0);  in sc27xx_efuse_read()
192 	sc27xx_efuse_unlock(efuse);  in sc27xx_efuse_read()
207 	struct sc27xx_efuse *efuse;  in sc27xx_efuse_probe()  local
210 	efuse = devm_kzalloc(&pdev->dev, sizeof(*efuse), GFP_KERNEL);  in sc27xx_efuse_probe()
211 	if (!efuse)  in sc27xx_efuse_probe()
214 	efuse->regmap = dev_get_regmap(pdev->dev.parent, NULL);  in sc27xx_efuse_probe()
215 	if (!efuse->regmap) {  in sc27xx_efuse_probe()
220 	ret = of_property_read_u32(np, "reg", &efuse->base);  in sc27xx_efuse_probe()
232 	efuse->hwlock = devm_hwspin_lock_request_specific(&pdev->dev, ret);  in sc27xx_efuse_probe()
233 	if (!efuse->hwlock) {  in sc27xx_efuse_probe()
238 	mutex_init(&efuse->mutex);  in sc27xx_efuse_probe()
239 	efuse->dev = &pdev->dev;  in sc27xx_efuse_probe()
240 	efuse->var_data = of_device_get_match_data(&pdev->dev);  in sc27xx_efuse_probe()
248 	econfig.priv = efuse;  in sc27xx_efuse_probe()