disable pwm7

hc

2024-05-10 23fa18eaa71266feff7ba8d83022d9e1cc83c65a

 kernel/drivers/misc/mei/init.c
..
..
@@ -1,17 +1,7 @@
1
+// SPDX-License-Identifier: GPL-2.0
1
2
 /*
2
- *
3
+ * Copyright (c) 2012-2019, Intel Corporation. All rights reserved.
3
4
  * Intel Management Engine Interface (Intel MEI) Linux driver
4
- * Copyright (c) 2003-2012, Intel Corporation.
5
- *
6
- * This program is free software; you can redistribute it and/or modify it
7
- * under the terms and conditions of the GNU General Public License,
8
- * version 2, as published by the Free Software Foundation.
9
- *
10
- * This program is distributed in the hope it will be useful, but WITHOUT
11
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
13
- * more details.
14
- *
15
5
  */
16
6
 
17
7
 #include <linux/export.h>
..
..
@@ -133,12 +123,12 @@
133
123
 
134
124
 	/* enter reset flow */
135
125
 	interrupts_enabled = state != MEI_DEV_POWER_DOWN;
136
-	dev->dev_state = MEI_DEV_RESETTING;
126
+	mei_set_devstate(dev, MEI_DEV_RESETTING);
137
127
 
138
128
 	dev->reset_count++;
139
129
 	if (dev->reset_count > MEI_MAX_CONSEC_RESET) {
140
130
 		dev_err(dev->dev, "reset: reached maximal consecutive resets: disabling the device\n");
141
-		dev->dev_state = MEI_DEV_DISABLED;
131
+		mei_set_devstate(dev, MEI_DEV_DISABLED);
142
132
 		return -ENODEV;
143
133
 	}
144
134
 
..
..
@@ -151,7 +141,7 @@
151
141
 
152
142
 	mei_hbm_reset(dev);
153
143
 
154
-	dev->rd_msg_hdr = 0;
144
+	memset(dev->rd_msg_hdr, 0, sizeof(dev->rd_msg_hdr));
155
145
 
156
146
 	if (ret) {
157
147
 		dev_err(dev->dev, "hw_reset failed ret = %d\n", ret);
..
..
@@ -160,7 +150,7 @@
160
150
 
161
151
 	if (state == MEI_DEV_POWER_DOWN) {
162
152
 		dev_dbg(dev->dev, "powering down: end of reset\n");
163
-		dev->dev_state = MEI_DEV_DISABLED;
153
+		mei_set_devstate(dev, MEI_DEV_DISABLED);
164
154
 		return 0;
165
155
 	}
166
156
 
..
..
@@ -172,11 +162,11 @@
172
162
 
173
163
 	dev_dbg(dev->dev, "link is established start sending messages.\n");
174
164
 
175
-	dev->dev_state = MEI_DEV_INIT_CLIENTS;
165
+	mei_set_devstate(dev, MEI_DEV_INIT_CLIENTS);
176
166
 	ret = mei_hbm_start_req(dev);
177
167
 	if (ret) {
178
168
 		dev_err(dev->dev, "hbm_start failed ret = %d\n", ret);
179
-		dev->dev_state = MEI_DEV_RESETTING;
169
+		mei_set_devstate(dev, MEI_DEV_RESETTING);
180
170
 		return ret;
181
171
 	}
182
172
 
..
..
@@ -200,13 +190,15 @@
200
190
 	/* acknowledge interrupt and stop interrupts */
201
191
 	mei_clear_interrupts(dev);
202
192
 
203
-	mei_hw_config(dev);
193
+	ret = mei_hw_config(dev);
194
+	if (ret)
195
+		goto err;
204
196
 
205
197
 	dev_dbg(dev->dev, "reset in start the mei device.\n");
206
198
 
207
199
 	dev->reset_count = 0;
208
200
 	do {
209
-		dev->dev_state = MEI_DEV_INITIALIZING;
201
+		mei_set_devstate(dev, MEI_DEV_INITIALIZING);
210
202
 		ret = mei_reset(dev);
211
203
 
212
204
 		if (ret == -ENODEV || dev->dev_state == MEI_DEV_DISABLED) {
..
..
@@ -241,7 +233,7 @@
241
233
 	return 0;
242
234
 err:
243
235
 	dev_err(dev->dev, "link layer initialization failed.\n");
244
-	dev->dev_state = MEI_DEV_DISABLED;
236
+	mei_set_devstate(dev, MEI_DEV_DISABLED);
245
237
 	mutex_unlock(&dev->device_lock);
246
238
 	return -ENODEV;
247
239
 }
..
..
@@ -260,7 +252,7 @@
260
252
 
261
253
 	mutex_lock(&dev->device_lock);
262
254
 
263
-	dev->dev_state = MEI_DEV_POWER_UP;
255
+	mei_set_devstate(dev, MEI_DEV_POWER_UP);
264
256
 	dev->reset_count = 0;
265
257
 
266
258
 	err = mei_reset(dev);
..
..
@@ -311,7 +303,7 @@
311
303
 	dev_dbg(dev->dev, "stopping the device.\n");
312
304
 
313
305
 	mutex_lock(&dev->device_lock);
314
-	dev->dev_state = MEI_DEV_POWER_DOWN;
306
+	mei_set_devstate(dev, MEI_DEV_POWER_DOWN);
315
307
 	mutex_unlock(&dev->device_lock);
316
308
 	mei_cl_bus_remove_devices(dev);
317
309
 
..
..
@@ -324,7 +316,7 @@
324
316
 
325
317
 	mei_reset(dev);
326
318
 	/* move device to disabled state unconditionally */
327
-	dev->dev_state = MEI_DEV_DISABLED;
319
+	mei_set_devstate(dev, MEI_DEV_DISABLED);
328
320
 
329
321
 	mutex_unlock(&dev->device_lock);
330
322
 }