forked from ~ljy/RK356X_SDK_RELEASE
blame | history | patch | commit | commitdiff
hc
2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc 
 kernel/drivers/hwmon/ltc4215.c
....@@ -1,11 +1,8 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
12 /*
23  * Driver for Linear Technology LTC4215 I2C Hot Swap Controller
34  *
45  * Copyright (C) 2009 Ira W. Snyder <iws@ovro.caltech.edu>
5
- *
6
- * This program is free software; you can redistribute it and/or modify
7
- * it under the terms of the GNU General Public License as published by
8
- * the Free Software Foundation; version 2 of the License.
96  *
107  * Datasheet:
118  * http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1003,C1006,C1163,P17572,D12697
....@@ -136,9 +133,8 @@
136133 	return curr;
137134 }
138135 
139
-static ssize_t ltc4215_show_voltage(struct device *dev,
140
-				    struct device_attribute *da,
141
-				    char *buf)
136
+static ssize_t ltc4215_voltage_show(struct device *dev,
137
+				    struct device_attribute *da, char *buf)
142138 {
143139 	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
144140 	const int voltage = ltc4215_get_voltage(dev, attr->index);
....@@ -146,18 +142,16 @@
146142 	return snprintf(buf, PAGE_SIZE, "%d\n", voltage);
147143 }
148144 
149
-static ssize_t ltc4215_show_current(struct device *dev,
150
-				    struct device_attribute *da,
151
-				    char *buf)
145
+static ssize_t ltc4215_current_show(struct device *dev,
146
+				    struct device_attribute *da, char *buf)
152147 {
153148 	const unsigned int curr = ltc4215_get_current(dev);
154149 
155150 	return snprintf(buf, PAGE_SIZE, "%u\n", curr);
156151 }
157152 
158
-static ssize_t ltc4215_show_power(struct device *dev,
159
-				  struct device_attribute *da,
160
-				  char *buf)
153
+static ssize_t ltc4215_power_show(struct device *dev,
154
+				  struct device_attribute *da, char *buf)
161155 {
162156 	const unsigned int curr = ltc4215_get_current(dev);
163157 	const int output_voltage = ltc4215_get_voltage(dev, LTC4215_ADIN);
....@@ -168,9 +162,8 @@
168162 	return snprintf(buf, PAGE_SIZE, "%u\n", power);
169163 }
170164 
171
-static ssize_t ltc4215_show_alarm(struct device *dev,
172
-					  struct device_attribute *da,
173
-					  char *buf)
165
+static ssize_t ltc4215_alarm_show(struct device *dev,
166
+				  struct device_attribute *da, char *buf)
174167 {
175168 	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
176169 	struct ltc4215_data *data = ltc4215_update_device(dev);
....@@ -189,26 +182,20 @@
189182 /* Construct a sensor_device_attribute structure for each register */
190183 
191184 /* Current */
192
-static SENSOR_DEVICE_ATTR(curr1_input, S_IRUGO, ltc4215_show_current, NULL, 0);
193
-static SENSOR_DEVICE_ATTR(curr1_max_alarm, S_IRUGO, ltc4215_show_alarm, NULL,
194
-			  1 << 2);
185
+static SENSOR_DEVICE_ATTR_RO(curr1_input, ltc4215_current, 0);
186
+static SENSOR_DEVICE_ATTR_RO(curr1_max_alarm, ltc4215_alarm, 1 << 2);
195187 
196188 /* Power (virtual) */
197
-static SENSOR_DEVICE_ATTR(power1_input, S_IRUGO, ltc4215_show_power, NULL, 0);
189
+static SENSOR_DEVICE_ATTR_RO(power1_input, ltc4215_power, 0);
198190 
199191 /* Input Voltage */
200
-static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, ltc4215_show_voltage, NULL,
201
-			  LTC4215_ADIN);
202
-static SENSOR_DEVICE_ATTR(in1_max_alarm, S_IRUGO, ltc4215_show_alarm, NULL,
203
-			  1 << 0);
204
-static SENSOR_DEVICE_ATTR(in1_min_alarm, S_IRUGO, ltc4215_show_alarm, NULL,
205
-			  1 << 1);
192
+static SENSOR_DEVICE_ATTR_RO(in1_input, ltc4215_voltage, LTC4215_ADIN);
193
+static SENSOR_DEVICE_ATTR_RO(in1_max_alarm, ltc4215_alarm, 1 << 0);
194
+static SENSOR_DEVICE_ATTR_RO(in1_min_alarm, ltc4215_alarm, 1 << 1);
206195 
207196 /* Output Voltage */
208
-static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, ltc4215_show_voltage, NULL,
209
-			  LTC4215_SOURCE);
210
-static SENSOR_DEVICE_ATTR(in2_min_alarm, S_IRUGO, ltc4215_show_alarm, NULL,
211
-			  1 << 3);
197
+static SENSOR_DEVICE_ATTR_RO(in2_input, ltc4215_voltage, LTC4215_SOURCE);
198
+static SENSOR_DEVICE_ATTR_RO(in2_min_alarm, ltc4215_alarm, 1 << 3);
212199 
213200 /*
214201  * Finally, construct an array of pointers to members of the above objects,
....@@ -231,8 +218,7 @@
231218 };
232219 ATTRIBUTE_GROUPS(ltc4215);
233220 
234
-static int ltc4215_probe(struct i2c_client *client,
235
-			 const struct i2c_device_id *id)
221
+static int ltc4215_probe(struct i2c_client *client)
236222 {
237223 	struct i2c_adapter *adapter = client->adapter;
238224 	struct device *dev = &client->dev;
....@@ -269,7 +255,7 @@
269255 	.driver = {
270256 		.name	= "ltc4215",
271257 	},
272
-	.probe		= ltc4215_probe,
258
+	.probe_new	= ltc4215_probe,
273259 	.id_table	= ltc4215_id,
274260 };
275261