add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/iio/adc/ad7266.c
..
..
@@ -1,9 +1,8 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
1
2
 /*
2
3
  * AD7266/65 SPI ADC driver
3
4
  *
4
5
  * Copyright 2012 Analog Devices Inc.
5
- *
6
- * Licensed under the GPL-2.
7
6
  */
8
7
 
9
8
 #include <linux/device.h>
..
..
@@ -12,7 +11,7 @@
12
11
 #include <linux/spi/spi.h>
13
12
 #include <linux/regulator/consumer.h>
14
13
 #include <linux/err.h>
15
-#include <linux/gpio.h>
14
+#include <linux/gpio/consumer.h>
16
15
 #include <linux/module.h>
17
16
 
18
17
 #include <linux/interrupt.h>
..
..
@@ -35,7 +34,7 @@
35
34
 	enum ad7266_range	range;
36
35
 	enum ad7266_mode	mode;
37
36
 	bool			fixed_addr;
38
-	struct gpio		gpios[3];
37
+	struct gpio_desc	*gpios[3];
39
38
 
40
39
 	/*
41
40
 	 * DMA (thus cache coherency maintenance) requires the
..
..
@@ -75,8 +74,6 @@
75
74
 
76
75
 static const struct iio_buffer_setup_ops iio_triggered_buffer_setup_ops = {
77
76
 	.preenable = &ad7266_preenable,
78
-	.postenable = &iio_triggered_buffer_postenable,
79
-	.predisable = &iio_triggered_buffer_predisable,
80
77
 	.postdisable = &ad7266_postdisable,
81
78
 };
82
79
 
..
..
@@ -118,7 +115,7 @@
118
115
 	}
119
116
 
120
117
 	for (i = 0; i < 3; ++i)
121
-		gpio_set_value(st->gpios[i].gpio, (bool)(nr & BIT(i)));
118
+		gpiod_set_value(st->gpios[i], (bool)(nr & BIT(i)));
122
119
 }
123
120
 
124
121
 static int ad7266_update_scan_mode(struct iio_dev *indio_dev,
..
..
@@ -377,7 +374,7 @@
377
374
 }
378
375
 
379
376
 static const char * const ad7266_gpio_labels[] = {
380
-	"AD0", "AD1", "AD2",
377
+	"ad0", "ad1", "ad2",
381
378
 };
382
379
 
383
380
 static int ad7266_probe(struct spi_device *spi)
..
..
@@ -420,14 +417,14 @@
420
417
 
421
418
 		if (!st->fixed_addr) {
422
419
 			for (i = 0; i < ARRAY_SIZE(st->gpios); ++i) {
423
-				st->gpios[i].gpio = pdata->addr_gpios[i];
424
-				st->gpios[i].flags = GPIOF_OUT_INIT_LOW;
425
-				st->gpios[i].label = ad7266_gpio_labels[i];
420
+				st->gpios[i] = devm_gpiod_get(&spi->dev,
421
+						      ad7266_gpio_labels[i],
422
+						      GPIOD_OUT_LOW);
423
+				if (IS_ERR(st->gpios[i])) {
424
+					ret = PTR_ERR(st->gpios[i]);
425
+					goto error_disable_reg;
426
+				}
426
427
 			}
427
-			ret = gpio_request_array(st->gpios,
428
-				ARRAY_SIZE(st->gpios));
429
-			if (ret)
430
-				goto error_disable_reg;
431
428
 		}
432
429
 	} else {
433
430
 		st->fixed_addr = true;
..
..
@@ -438,8 +435,6 @@
438
435
 	spi_set_drvdata(spi, indio_dev);
439
436
 	st->spi = spi;
440
437
 
441
-	indio_dev->dev.parent = &spi->dev;
442
-	indio_dev->dev.of_node = spi->dev.of_node;
443
438
 	indio_dev->name = spi_get_device_id(spi)->name;
444
439
 	indio_dev->modes = INDIO_DIRECT_MODE;
445
440
 	indio_dev->info = &ad7266_info;
..
..
@@ -466,7 +461,7 @@
466
461
 	ret = iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time,
467
462
 		&ad7266_trigger_handler, &iio_triggered_buffer_setup_ops);
468
463
 	if (ret)
469
-		goto error_free_gpios;
464
+		goto error_disable_reg;
470
465
 
471
466
 	ret = iio_device_register(indio_dev);
472
467
 	if (ret)
..
..
@@ -476,9 +471,6 @@
476
471
 
477
472
 error_buffer_cleanup:
478
473
 	iio_triggered_buffer_cleanup(indio_dev);
479
-error_free_gpios:
480
-	if (!st->fixed_addr)
481
-		gpio_free_array(st->gpios, ARRAY_SIZE(st->gpios));
482
474
 error_disable_reg:
483
475
 	if (!IS_ERR(st->reg))
484
476
 		regulator_disable(st->reg);
..
..
@@ -493,8 +485,6 @@
493
485
 
494
486
 	iio_device_unregister(indio_dev);
495
487
 	iio_triggered_buffer_cleanup(indio_dev);
496
-	if (!st->fixed_addr)
497
-		gpio_free_array(st->gpios, ARRAY_SIZE(st->gpios));
498
488
 	if (!IS_ERR(st->reg))
499
489
 		regulator_disable(st->reg);
500
490