[PATCH v4 07/14] mfd: lm3533: Switch sysfs_create_group() to device_add_group()

From: Svyatoslav Ryhel

Date: Sat Jun 06 2026 - 01:02:16 EST


Switch from sysfs_create_group() to device_add_group() including device
managed where appropriate.

Signed-off-by: Svyatoslav Ryhel <clamor95@xxxxxxxxx>
---
drivers/mfd/lm3533-core.c | 4 ++--
drivers/video/backlight/lm3533_bl.c | 19 ++++++-------------
2 files changed, 8 insertions(+), 15 deletions(-)

diff --git a/drivers/mfd/lm3533-core.c b/drivers/mfd/lm3533-core.c
index 45e7f7481aa0..e3efc9f6f348 100644
--- a/drivers/mfd/lm3533-core.c
+++ b/drivers/mfd/lm3533-core.c
@@ -416,7 +416,7 @@ static int lm3533_device_init(struct lm3533 *lm3533)
lm3533_device_bl_init(lm3533);
lm3533_device_led_init(lm3533);

- ret = sysfs_create_group(&lm3533->dev->kobj, &lm3533_attribute_group);
+ ret = device_add_group(lm3533->dev, &lm3533_attribute_group);
if (ret < 0) {
dev_err(lm3533->dev, "failed to create sysfs attributes\n");
goto err_unregister;
@@ -436,7 +436,7 @@ static void lm3533_device_exit(struct lm3533 *lm3533)
{
dev_dbg(lm3533->dev, "%s\n", __func__);

- sysfs_remove_group(&lm3533->dev->kobj, &lm3533_attribute_group);
+ device_remove_group(lm3533->dev, &lm3533_attribute_group);

mfd_remove_devices(lm3533->dev);
lm3533_disable(lm3533);
diff --git a/drivers/video/backlight/lm3533_bl.c b/drivers/video/backlight/lm3533_bl.c
index 39f438114c48..b4363a30b2c8 100644
--- a/drivers/video/backlight/lm3533_bl.c
+++ b/drivers/video/backlight/lm3533_bl.c
@@ -304,28 +304,22 @@ static int lm3533_bl_probe(struct platform_device *pdev)

platform_set_drvdata(pdev, bl);

- ret = sysfs_create_group(&bd->dev.kobj, &lm3533_bl_attribute_group);
- if (ret < 0) {
- dev_err(&pdev->dev, "failed to create sysfs attributes\n");
- return ret;
- }
+ ret = devm_device_add_group(&bd->dev, &lm3533_bl_attribute_group);
+ if (ret < 0)
+ return dev_err_probe(&pdev->dev, ret,
+ "failed to create sysfs attributes\n");

backlight_update_status(bd);

ret = lm3533_bl_setup(bl, pdata);
if (ret)
- goto err_sysfs_remove;
+ return ret;

ret = lm3533_ctrlbank_enable(&bl->cb);
if (ret)
- goto err_sysfs_remove;
+ return ret;

return 0;
-
-err_sysfs_remove:
- sysfs_remove_group(&bd->dev.kobj, &lm3533_bl_attribute_group);
-
- return ret;
}

static void lm3533_bl_remove(struct platform_device *pdev)
@@ -339,7 +333,6 @@ static void lm3533_bl_remove(struct platform_device *pdev)
bd->props.brightness = 0;

lm3533_ctrlbank_disable(&bl->cb);
- sysfs_remove_group(&bd->dev.kobj, &lm3533_bl_attribute_group);
}

#ifdef CONFIG_PM_SLEEP
--
2.53.0