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Input: ims-pcu - use driver core to instantiate device attributes

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Instead of manually creating driver-specific device attributes
set struct usb_driver->dev_groups pointer to have the driver core
do it.

Link: https://lore.kernel.org/r/20240610041813.722445-1-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Dmitry Torokhov 2024-06-09 21:18:10 -07:00
parent daa268ae28
commit 204d18a7a0
1 changed files with 28 additions and 25 deletions
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53
drivers/input/misc/ims-pcu.c
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@ -1465,9 +1465,27 @@ static struct attribute *ims_pcu_ofn_attrs[] = {
NULL
};
static umode_t ims_pcu_ofn_is_attr_visible(struct kobject *kobj,
struct attribute *attr, int n)
{
struct device *dev = kobj_to_dev(kobj);
struct usb_interface *intf = to_usb_interface(dev);
struct ims_pcu *pcu = usb_get_intfdata(intf);
umode_t mode = attr->mode;
/*
* PCU-B devices, both GEN_1 and GEN_2 do not have OFN sensor.
*/
if (pcu->bootloader_mode || pcu->device_id == IMS_PCU_PCU_B_DEVICE_ID)
mode = 0;
return mode;
}
static const struct attribute_group ims_pcu_ofn_attr_group = {
.name = "ofn",
.attrs = ims_pcu_ofn_attrs,
.name = "ofn",
.is_visible = ims_pcu_ofn_is_attr_visible,
.attrs = ims_pcu_ofn_attrs,
};
static void ims_pcu_irq(struct urb *urb)
@ -1889,16 +1907,6 @@ static int ims_pcu_init_application_mode(struct ims_pcu *pcu)
/* Device appears to be operable, complete initialization */
pcu->device_no = atomic_inc_return(&device_no);
/*
* PCU-B devices, both GEN_1 and GEN_2 do not have OFN sensor
*/
if (pcu->device_id != IMS_PCU_PCU_B_DEVICE_ID) {
error = sysfs_create_group(&pcu->dev->kobj,
&ims_pcu_ofn_attr_group);
if (error)
return error;
}
error = ims_pcu_setup_backlight(pcu);
if (error)
return error;
@ -1935,10 +1943,6 @@ static void ims_pcu_destroy_application_mode(struct ims_pcu *pcu)
ims_pcu_destroy_gamepad(pcu);
ims_pcu_destroy_buttons(pcu);
ims_pcu_destroy_backlight(pcu);
if (pcu->device_id != IMS_PCU_PCU_B_DEVICE_ID)
sysfs_remove_group(&pcu->dev->kobj,
&ims_pcu_ofn_attr_group);
}
}
@ -2030,20 +2034,14 @@ static int ims_pcu_probe(struct usb_interface *intf,
if (error)
goto err_stop_io;
error = sysfs_create_group(&intf->dev.kobj, &ims_pcu_attr_group);
if (error)
goto err_stop_io;
error = pcu->bootloader_mode ?
ims_pcu_init_bootloader_mode(pcu) :
ims_pcu_init_application_mode(pcu);
if (error)
goto err_remove_sysfs;
goto err_stop_io;
return 0;
err_remove_sysfs:
sysfs_remove_group(&intf->dev.kobj, &ims_pcu_attr_group);
err_stop_io:
ims_pcu_stop_io(pcu);
err_free_buffers:
@ -2069,8 +2067,6 @@ static void ims_pcu_disconnect(struct usb_interface *intf)
if (alt->desc.bInterfaceClass != USB_CLASS_COMM)
return;
sysfs_remove_group(&intf->dev.kobj, &ims_pcu_attr_group);
ims_pcu_stop_io(pcu);
if (pcu->bootloader_mode)
@ -2129,9 +2125,16 @@ static const struct usb_device_id ims_pcu_id_table[] = {
{ }
};
static const struct attribute_group *ims_pcu_sysfs_groups[] = {
&ims_pcu_attr_group,
&ims_pcu_ofn_attr_group,
NULL
};
static struct usb_driver ims_pcu_driver = {
.name = "ims_pcu",
.id_table = ims_pcu_id_table,
.dev_groups = ims_pcu_sysfs_groups,
.probe = ims_pcu_probe,
.disconnect = ims_pcu_disconnect,
#ifdef CONFIG_PM