65 static int sc27xx_efuse_lock(struct sc27xx_efuse *efuse)  in sc27xx_efuse_lock()  argument
69 	mutex_lock(&efuse->mutex);  in sc27xx_efuse_lock()
71 	ret = hwspin_lock_timeout_raw(efuse->hwlock,  in sc27xx_efuse_lock()
74 		dev_err(efuse->dev, "timeout to get the hwspinlock\n");  in sc27xx_efuse_lock()
75 		mutex_unlock(&efuse->mutex);  in sc27xx_efuse_lock()
82 static void sc27xx_efuse_unlock(struct sc27xx_efuse *efuse)  in sc27xx_efuse_unlock()  argument
84 	hwspin_unlock_raw(efuse->hwlock);  in sc27xx_efuse_unlock()
85 	mutex_unlock(&efuse->mutex);  in sc27xx_efuse_unlock()
88 static int sc27xx_efuse_poll_status(struct sc27xx_efuse *efuse, u32 bits)  in sc27xx_efuse_poll_status()  argument
93 	ret = regmap_read_poll_timeout(efuse->regmap,  in sc27xx_efuse_poll_status()
94 				       efuse->base + SC27XX_EFUSE_STATUS,  in sc27xx_efuse_poll_status()
99 		dev_err(efuse->dev, "timeout to update the efuse status\n");  in sc27xx_efuse_poll_status()
108 	struct sc27xx_efuse *efuse = context;  in sc27xx_efuse_read()  local
117 	ret = sc27xx_efuse_lock(efuse);  in sc27xx_efuse_read()
122 	ret = regmap_update_bits(efuse->regmap, SC27XX_MODULE_EN,  in sc27xx_efuse_read()
131 	ret = sc27xx_efuse_poll_status(efuse, SC27XX_EFUSE_STANDBY);  in sc27xx_efuse_read()
136 	ret = regmap_write(efuse->regmap,  in sc27xx_efuse_read()
137 			   efuse->base + SC27XX_EFUSE_BLOCK_INDEX,  in sc27xx_efuse_read()
143 	ret = regmap_update_bits(efuse->regmap,  in sc27xx_efuse_read()
144 				 efuse->base + SC27XX_EFUSE_MODE_CTRL,  in sc27xx_efuse_read()
154 	ret = sc27xx_efuse_poll_status(efuse, SC27XX_EFUSE_RD_DONE);  in sc27xx_efuse_read()
159 	ret = regmap_read(efuse->regmap, efuse->base + SC27XX_EFUSE_DATA_RD,  in sc27xx_efuse_read()
165 	ret = regmap_update_bits(efuse->regmap,  in sc27xx_efuse_read()
166 				 efuse->base + SC27XX_EFUSE_MODE_CTRL,  in sc27xx_efuse_read()
172 	regmap_update_bits(efuse->regmap, SC27XX_MODULE_EN, SC27XX_EFUSE_EN, 0);  in sc27xx_efuse_read()
174 	sc27xx_efuse_unlock(efuse);  in sc27xx_efuse_read()
189 	struct sc27xx_efuse *efuse;  in sc27xx_efuse_probe()  local
192 	efuse = devm_kzalloc(&pdev->dev, sizeof(*efuse), GFP_KERNEL);  in sc27xx_efuse_probe()
193 	if (!efuse)  in sc27xx_efuse_probe()
196 	efuse->regmap = dev_get_regmap(pdev->dev.parent, NULL);  in sc27xx_efuse_probe()
197 	if (!efuse->regmap) {  in sc27xx_efuse_probe()
202 	ret = of_property_read_u32(np, "reg", &efuse->base);  in sc27xx_efuse_probe()
214 	efuse->hwlock = hwspin_lock_request_specific(ret);  in sc27xx_efuse_probe()
215 	if (!efuse->hwlock) {  in sc27xx_efuse_probe()
220 	mutex_init(&efuse->mutex);  in sc27xx_efuse_probe()
221 	efuse->dev = &pdev->dev;  in sc27xx_efuse_probe()
222 	platform_set_drvdata(pdev, efuse);  in sc27xx_efuse_probe()
230 	econfig.priv = efuse;  in sc27xx_efuse_probe()
235 		hwspin_lock_free(efuse->hwlock);  in sc27xx_efuse_probe()
244 	struct sc27xx_efuse *efuse = platform_get_drvdata(pdev);  in sc27xx_efuse_remove()  local
246 	hwspin_lock_free(efuse->hwlock);  in sc27xx_efuse_remove()