drivers/misc/stm32mp_fuse.c

23 	int ret;
28 		ret = uclass_get_device_by_driver(UCLASS_MISC,
31 		if (ret)
32 			return ret;
33 		ret = misc_read(dev, word * 4 + STM32_BSEC_SHADOW_OFFSET,
35 		if (ret != 4)
36 			ret = -EINVAL;
38 			ret = 0;
43 		ret = uclass_get_device_by_driver(UCLASS_MISC,
46 		if (ret)
47 			return ret;
49 		ret = misc_read(dev, -word, val, 1);
50 		if (ret != 1)
51 			ret = -EINVAL;
53 			ret = 0;
59 		ret = -EINVAL;
63 	return ret;
69 	int ret;
73 		ret = uclass_get_device_by_driver(UCLASS_MISC,
76 		if (ret)
77 			return ret;
78 		ret = misc_write(dev, word * 4 + STM32_BSEC_OTP_OFFSET,
80 		if (ret != 4)
81 			ret = -EINVAL;
83 			ret = 0;
88 		ret = uclass_get_device_by_driver(UCLASS_MISC,
91 		if (ret)
92 			return ret;
93 		ret = misc_write(dev, word, &val, 1);
94 		if (ret != 1)
95 			ret = -EINVAL;
97 			ret = 0;
103 		ret = -EINVAL;
107 	return ret;
113 	int ret;
117 		ret = uclass_get_device_by_driver(UCLASS_MISC,
120 		if (ret)
121 			return ret;
122 		ret = misc_read(dev, word * 4 + STM32_BSEC_OTP_OFFSET, val, 4);
123 		if (ret != 4)
124 			ret = -EINVAL;
126 			ret = 0;
131 		ret = uclass_get_device_by_driver(UCLASS_MISC,
134 		if (ret)
135 			return ret;
137 		ret = misc_read(dev, word, val, 1);
138 		if (ret != 1)
139 			ret = -EINVAL;
141 			ret = 0;
147 		ret = -EINVAL;
151 	return ret;
157 	int ret;
161 		ret = uclass_get_device_by_driver(UCLASS_MISC,
164 		if (ret)
165 			return ret;
166 		ret = misc_write(dev, word * 4 + STM32_BSEC_SHADOW_OFFSET,
168 		if (ret != 4)
169 			ret = -EINVAL;
171 			ret = 0;
176 		ret = uclass_get_device_by_driver(UCLASS_MISC,
179 		if (ret)
180 			return ret;
181 		ret = misc_write(dev, -word, &val, 1);
182 		if (ret != 1)
183 			ret = -EINVAL;
185 			ret = 0;
192 		ret = -EINVAL;
196 	return ret;