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usb: misc: ljca: Drop _ADR support to get ljca children devices

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Currently the shipped platforms use only _HID to distinguish
ljca children devices. The _ADR support here is for future HW.
This patch is to drop _ADR support and we can then re-introduce
it (revert this patch) if future HW actually starts using _ADR
to distinguish children devices.

Signed-off-by: Wentong Wu <wentong.wu@intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20231114072531.1366753-1-wentong.wu@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Wentong Wu 2023-11-14 15:25:31 +08:00 committed by Greg Kroah-Hartman
parent 58f2fcb3a8
commit 30ce1c03a0
1 changed files with 2 additions and 12 deletions
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14
drivers/usb/misc/usb-ljca.c
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@ -457,8 +457,8 @@ static void ljca_auxdev_acpi_bind(struct ljca_adapter *adap,
u64 adr, u8 id)
{
struct ljca_match_ids_walk_data wd = { 0 };
struct acpi_device *parent, *adev;
struct device *dev = adap->dev;
struct acpi_device *parent;
char uid[4];
parent = ACPI_COMPANION(dev);
@ -466,17 +466,7 @@ static void ljca_auxdev_acpi_bind(struct ljca_adapter *adap,
return;
/*
* get auxdev ACPI handle from the ACPI device directly
* under the parent that matches _ADR.
*/
adev = acpi_find_child_device(parent, adr, false);
if (adev) {
ACPI_COMPANION_SET(&auxdev->dev, adev);
return;
}
/*
* _ADR is a grey area in the ACPI specification, some
* Currently LJCA hw doesn't use _ADR instead the shipped
* platforms use _HID to distinguish children devices.
*/
switch (adr) {