change otg to host mode

hc

2024-05-11 04dd17822334871b23ea2862f7798fb0e0007777

 kernel/drivers/staging/greybus/i2c.c
..
..
@@ -10,8 +10,8 @@
10
10
 #include <linux/module.h>
11
11
 #include <linux/slab.h>
12
12
 #include <linux/i2c.h>
13
+#include <linux/greybus.h>
13
14
 
14
-#include "greybus.h"
15
15
 #include "gbphy.h"
16
16
 
17
17
 struct gb_i2c_device {
..
..
@@ -31,7 +31,14 @@
31
31
 	return gb_i2c_functionality;	/* All bits the same for now */
32
32
 }
33
33
 
34
-static int gb_i2c_functionality_operation(struct gb_i2c_device *gb_i2c_dev)
34
+/*
35
+ * Do initial setup of the i2c device.  This includes verifying we
36
+ * can support it (based on the protocol version it advertises).
37
+ * If that's OK, we get and cached its functionality bits.
38
+ *
39
+ * Note: gb_i2c_dev->connection is assumed to have been valid.
40
+ */
41
+static int gb_i2c_device_setup(struct gb_i2c_device *gb_i2c_dev)
35
42
 {
36
43
 	struct gb_i2c_functionality_response response;
37
44
 	u32 functionality;
..
..
@@ -107,7 +114,7 @@
107
114
 
108
115
 	/* Response consists only of incoming data */
109
116
 	operation = gb_operation_create(connection, GB_I2C_TYPE_TRANSFER,
110
-				request_size, data_in_size, GFP_KERNEL);
117
+					request_size, data_in_size, GFP_KERNEL);
111
118
 	if (!operation)
112
119
 		return NULL;
113
120
 
..
..
@@ -137,7 +144,7 @@
137
144
 }
138
145
 
139
146
 static void gb_i2c_decode_response(struct i2c_msg *msgs, u32 msg_count,
140
-				struct gb_i2c_transfer_response *response)
147
+				   struct gb_i2c_transfer_response *response)
141
148
 {
142
149
 	struct i2c_msg *msg = msgs;
143
150
 	u8 *data;
..
..
@@ -164,7 +171,7 @@
164
171
 }
165
172
 
166
173
 static int gb_i2c_transfer_operation(struct gb_i2c_device *gb_i2c_dev,
167
-					struct i2c_msg *msgs, u32 msg_count)
174
+				     struct i2c_msg *msgs, u32 msg_count)
168
175
 {
169
176
 	struct gb_connection *connection = gb_i2c_dev->connection;
170
177
 	struct device *dev = &gb_i2c_dev->gbphy_dev->dev;
..
..
@@ -199,7 +206,7 @@
199
206
 }
200
207
 
201
208
 static int gb_i2c_master_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
202
-		int msg_count)
209
+			      int msg_count)
203
210
 {
204
211
 	struct gb_i2c_device *gb_i2c_dev;
205
212
 
..
..
@@ -207,20 +214,6 @@
207
214
 
208
215
 	return gb_i2c_transfer_operation(gb_i2c_dev, msgs, msg_count);
209
216
 }
210
-
211
-#if 0
212
-/* Later */
213
-static int gb_i2c_smbus_xfer(struct i2c_adapter *adap,
214
-			u16 addr, unsigned short flags, char read_write,
215
-			u8 command, int size, union i2c_smbus_data *data)
216
-{
217
-	struct gb_i2c_device *gb_i2c_dev;
218
-
219
-	gb_i2c_dev = i2c_get_adapdata(adap);
220
-
221
-	return 0;
222
-}
223
-#endif
224
217
 
225
218
 static u32 gb_i2c_functionality(struct i2c_adapter *adap)
226
219
 {
..
..
@@ -231,25 +224,11 @@
231
224
 
232
225
 static const struct i2c_algorithm gb_i2c_algorithm = {
233
226
 	.master_xfer	= gb_i2c_master_xfer,
234
-	/* .smbus_xfer	= gb_i2c_smbus_xfer, */
235
227
 	.functionality	= gb_i2c_functionality,
236
228
 };
237
229
 
238
-/*
239
- * Do initial setup of the i2c device.  This includes verifying we
240
- * can support it (based on the protocol version it advertises).
241
- * If that's OK, we get and cached its functionality bits.
242
- *
243
- * Note: gb_i2c_dev->connection is assumed to have been valid.
244
- */
245
-static int gb_i2c_device_setup(struct gb_i2c_device *gb_i2c_dev)
246
-{
247
-	/* Assume the functionality never changes, just get it once */
248
-	return gb_i2c_functionality_operation(gb_i2c_dev);
249
-}
250
-
251
230
 static int gb_i2c_probe(struct gbphy_device *gbphy_dev,
252
-			 const struct gbphy_device_id *id)
231
+			const struct gbphy_device_id *id)
253
232
 {
254
233
 	struct gb_connection *connection;
255
234
 	struct gb_i2c_device *gb_i2c_dev;
..
..
@@ -260,9 +239,10 @@
260
239
 	if (!gb_i2c_dev)
261
240
 		return -ENOMEM;
262
241
 
263
-	connection = gb_connection_create(gbphy_dev->bundle,
264
-					  le16_to_cpu(gbphy_dev->cport_desc->id),
265
-					  NULL);
242
+	connection =
243
+		gb_connection_create(gbphy_dev->bundle,
244
+				     le16_to_cpu(gbphy_dev->cport_desc->id),
245
+				     NULL);
266
246
 	if (IS_ERR(connection)) {
267
247
 		ret = PTR_ERR(connection);
268
248
 		goto exit_i2cdev_free;
..
..
@@ -286,7 +266,6 @@
286
266
 	adapter->owner = THIS_MODULE;
287
267
 	adapter->class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
288
268
 	adapter->algo = &gb_i2c_algorithm;
289
-	/* adapter->algo_data = what? */
290
269
 
291
270
 	adapter->dev.parent = &gbphy_dev->dev;
292
271
 	snprintf(adapter->name, sizeof(adapter->name), "Greybus i2c adapter");