add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/platform/x86/pmc_atom.c
..
..
@@ -1,16 +1,7 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
1
2
 /*
2
3
  * Intel Atom SOC Power Management Controller Driver
3
4
  * Copyright (c) 2014, Intel Corporation.
4
- *
5
- * This program is free software; you can redistribute it and/or modify it
6
- * under the terms and conditions of the GNU General Public License,
7
- * version 2, as published by the Free Software Foundation.
8
- *
9
- * This program is distributed in the hope it will be useful, but WITHOUT
10
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
12
- * more details.
13
- *
14
5
  */
15
6
 
16
7
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
..
..
@@ -253,7 +244,7 @@
253
244
 	pm1_cnt_port = acpi_base_addr + PM1_CNT;
254
245
 
255
246
 	pm1_cnt_value = inl(pm1_cnt_port);
256
-	pm1_cnt_value &= SLEEP_TYPE_MASK;
247
+	pm1_cnt_value &= ~SLEEP_TYPE_MASK;
257
248
 	pm1_cnt_value |= SLEEP_TYPE_S5;
258
249
 	pm1_cnt_value |= SLEEP_ENABLE;
259
250
 
..
..
@@ -350,45 +341,24 @@
350
341
 
351
342
 DEFINE_SHOW_ATTRIBUTE(pmc_sleep_tmr);
352
343
 
353
-static void pmc_dbgfs_unregister(struct pmc_dev *pmc)
344
+static void pmc_dbgfs_register(struct pmc_dev *pmc)
354
345
 {
355
-	debugfs_remove_recursive(pmc->dbgfs_dir);
356
-}
357
-
358
-static int pmc_dbgfs_register(struct pmc_dev *pmc)
359
-{
360
-	struct dentry *dir, *f;
346
+	struct dentry *dir;
361
347
 
362
348
 	dir = debugfs_create_dir("pmc_atom", NULL);
363
-	if (!dir)
364
-		return -ENOMEM;
365
349
 
366
350
 	pmc->dbgfs_dir = dir;
367
351
 
368
-	f = debugfs_create_file("dev_state", S_IFREG | S_IRUGO,
369
-				dir, pmc, &pmc_dev_state_fops);
370
-	if (!f)
371
-		goto err;
372
-
373
-	f = debugfs_create_file("pss_state", S_IFREG | S_IRUGO,
374
-				dir, pmc, &pmc_pss_state_fops);
375
-	if (!f)
376
-		goto err;
377
-
378
-	f = debugfs_create_file("sleep_state", S_IFREG | S_IRUGO,
379
-				dir, pmc, &pmc_sleep_tmr_fops);
380
-	if (!f)
381
-		goto err;
382
-
383
-	return 0;
384
-err:
385
-	pmc_dbgfs_unregister(pmc);
386
-	return -ENODEV;
352
+	debugfs_create_file("dev_state", S_IFREG | S_IRUGO, dir, pmc,
353
+			    &pmc_dev_state_fops);
354
+	debugfs_create_file("pss_state", S_IFREG | S_IRUGO, dir, pmc,
355
+			    &pmc_pss_state_fops);
356
+	debugfs_create_file("sleep_state", S_IFREG | S_IRUGO, dir, pmc,
357
+			    &pmc_sleep_tmr_fops);
387
358
 }
388
359
 #else
389
-static int pmc_dbgfs_register(struct pmc_dev *pmc)
360
+static void pmc_dbgfs_register(struct pmc_dev *pmc)
390
361
 {
391
-	return 0;
392
362
 }
393
363
 #endif /* CONFIG_DEBUG_FS */
394
364
 
..
..
@@ -434,6 +404,13 @@
434
404
 		.matches = {
435
405
 			DMI_MATCH(DMI_SYS_VENDOR, "SIEMENS AG"),
436
406
 			DMI_MATCH(DMI_PRODUCT_VERSION, "6ES7647-8B"),
407
+		},
408
+	},
409
+	{
410
+		.ident = "SIMATIC IPC277E",
411
+		.matches = {
412
+			DMI_MATCH(DMI_SYS_VENDOR, "SIEMENS AG"),
413
+			DMI_MATCH(DMI_PRODUCT_VERSION, "6AV7882-0"),
437
414
 		},
438
415
 	},
439
416
 	{
..
..
@@ -496,7 +473,7 @@
496
473
 	pci_read_config_dword(pdev, PMC_BASE_ADDR_OFFSET, &pmc->base_addr);
497
474
 	pmc->base_addr &= PMC_BASE_ADDR_MASK;
498
475
 
499
-	pmc->regmap = ioremap_nocache(pmc->base_addr, PMC_MMIO_REG_LEN);
476
+	pmc->regmap = ioremap(pmc->base_addr, PMC_MMIO_REG_LEN);
500
477
 	if (!pmc->regmap) {
501
478
 		dev_err(&pdev->dev, "error: ioremap failed\n");
502
479
 		return -ENOMEM;
..
..
@@ -507,9 +484,7 @@
507
484
 	/* PMC hardware registers setup */
508
485
 	pmc_hw_reg_setup(pmc);
509
486
 
510
-	ret = pmc_dbgfs_register(pmc);
511
-	if (ret)
512
-		dev_warn(&pdev->dev, "debugfs register failed\n");
487
+	pmc_dbgfs_register(pmc);
513
488
 
514
489
 	/* Register platform clocks - PMC_PLT_CLK [0..5] */
515
490
 	ret = pmc_setup_clks(pdev, pmc->regmap, data);