linux-kernel - [PATCH 21/22] Input: tsc2004/5 - use device core to create driver-specific device attributes

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Message-ID: <20230729005133.1095051-21-dmitry.torokhov@gmail.com>
Date:   Fri, 28 Jul 2023 17:51:30 -0700
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     linux-input@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [PATCH 21/22] Input: tsc2004/5 - use device core to create driver-specific device attributes

Instead of creating driver-specific device attributes with
sysfs_create_group() have device core do this by setting up dev_groups
pointer in the driver structure.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
---
 drivers/input/touchscreen/tsc2004.c      |  7 ++++---
 drivers/input/touchscreen/tsc2005.c      |  7 ++++---
 drivers/input/touchscreen/tsc200x-core.c | 18 +++++++-----------
 drivers/input/touchscreen/tsc200x-core.h |  1 +
 4 files changed, 16 insertions(+), 17 deletions(-)

diff --git a/drivers/input/touchscreen/tsc2004.c b/drivers/input/touchscreen/tsc2004.c
index b5e904c5b7c4..89c5248f66f6 100644
--- a/drivers/input/touchscreen/tsc2004.c
+++ b/drivers/input/touchscreen/tsc2004.c
@@ -63,9 +63,10 @@ MODULE_DEVICE_TABLE(of, tsc2004_of_match);
 
 static struct i2c_driver tsc2004_driver = {
 	.driver = {
-		.name   = "tsc2004",
-		.of_match_table = of_match_ptr(tsc2004_of_match),
-		.pm     = pm_sleep_ptr(&tsc200x_pm_ops),
+		.name		= "tsc2004",
+		.dev_groups	= tsc200x_groups,
+		.of_match_table	= of_match_ptr(tsc2004_of_match),
+		.pm		= pm_sleep_ptr(&tsc200x_pm_ops),
 	},
 	.id_table       = tsc2004_idtable,
 	.probe          = tsc2004_probe,
diff --git a/drivers/input/touchscreen/tsc2005.c b/drivers/input/touchscreen/tsc2005.c
index b6dfbcfc8c19..1b40ce0ca1b9 100644
--- a/drivers/input/touchscreen/tsc2005.c
+++ b/drivers/input/touchscreen/tsc2005.c
@@ -79,9 +79,10 @@ MODULE_DEVICE_TABLE(of, tsc2005_of_match);
 
 static struct spi_driver tsc2005_driver = {
 	.driver	= {
-		.name	= "tsc2005",
-		.of_match_table = of_match_ptr(tsc2005_of_match),
-		.pm	= pm_sleep_ptr(&tsc200x_pm_ops),
+		.name		= "tsc2005",
+		.dev_groups	= tsc200x_groups,
+		.of_match_table	= of_match_ptr(tsc2005_of_match),
+		.pm		= pm_sleep_ptr(&tsc200x_pm_ops),
 	},
 	.probe	= tsc2005_probe,
 	.remove	= tsc2005_remove,
diff --git a/drivers/input/touchscreen/tsc200x-core.c b/drivers/input/touchscreen/tsc200x-core.c
index b799f26fcf8f..a4c0e9db9bb9 100644
--- a/drivers/input/touchscreen/tsc200x-core.c
+++ b/drivers/input/touchscreen/tsc200x-core.c
@@ -356,6 +356,12 @@ static const struct attribute_group tsc200x_attr_group = {
 	.attrs		= tsc200x_attrs,
 };
 
+const struct attribute_group *tsc200x_groups[] = {
+	&tsc200x_attr_group,
+	NULL
+};
+EXPORT_SYMBOL_GPL(tsc200x_groups);
+
 static void tsc200x_esd_work(struct work_struct *work)
 {
 	struct tsc200x *ts = container_of(work, struct tsc200x, esd_work.work);
@@ -553,25 +559,17 @@ int tsc200x_probe(struct device *dev, int irq, const struct input_id *tsc_id,
 		return error;
 
 	dev_set_drvdata(dev, ts);
-	error = sysfs_create_group(&dev->kobj, &tsc200x_attr_group);
-	if (error) {
-		dev_err(dev,
-			"Failed to create sysfs attributes, err: %d\n", error);
-		goto disable_regulator;
-	}
 
 	error = input_register_device(ts->idev);
 	if (error) {
 		dev_err(dev,
 			"Failed to register input device, err: %d\n", error);
-		goto err_remove_sysfs;
+		goto disable_regulator;
 	}
 
 	irq_set_irq_wake(irq, 1);
 	return 0;
 
-err_remove_sysfs:
-	sysfs_remove_group(&dev->kobj, &tsc200x_attr_group);
 disable_regulator:
 	regulator_disable(ts->vio);
 	return error;
@@ -582,8 +580,6 @@ void tsc200x_remove(struct device *dev)
 {
 	struct tsc200x *ts = dev_get_drvdata(dev);
 
-	sysfs_remove_group(&dev->kobj, &tsc200x_attr_group);
-
 	regulator_disable(ts->vio);
 }
 EXPORT_SYMBOL_GPL(tsc200x_remove);
diff --git a/drivers/input/touchscreen/tsc200x-core.h b/drivers/input/touchscreen/tsc200x-core.h
index 4ded34425b21..37de91efd78e 100644
--- a/drivers/input/touchscreen/tsc200x-core.h
+++ b/drivers/input/touchscreen/tsc200x-core.h
@@ -70,6 +70,7 @@
 
 extern const struct regmap_config tsc200x_regmap_config;
 extern const struct dev_pm_ops tsc200x_pm_ops;
+extern const struct attribute_group *tsc200x_groups[];
 
 int tsc200x_probe(struct device *dev, int irq, const struct input_id *tsc_id,
 		  struct regmap *regmap,
-- 
2.41.0.487.g6d72f3e995-goog