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HID: i2c-hid: Refactor _DSM helper and add i2c-hid-acpi-prp0001 driver

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Move the _DSM call that gets the HID descriptor address from
i2c-hid-acpi.c into i2c-hid-acpi.h as a static inline so both the ACPI
and the new PRP0001 driver can use it. While refactoring, move the
blacklist check and the _DSM call to the top of probe() to avoid a
pointless alloc when the device is blacklisted or does not implement the
_DSM.

Some devices, for example the Lenovo KaiTian N60d and Inspur CP300L3,
are declared with _HID "PRP0001" and _DSD compatible "hid-over-i2c" but
lack "hid-descr-addr" from the _DSD and provide the HID descriptor
address only through an ACPI _DSM. The OF driver fails to probe them
because it requires hid-descr-addr. Add a new driver that handles these
devices by calling the shared _DSM helper.

Link: https://lore.kernel.org/tencent_F6FC553D1BB737FC00062AD0FEF43C580F0A@qq.com
Fixes: b33752c300 ("HID: i2c-hid: Reorganize so ACPI and OF are separate modules")
Signed-off-by: 谢致邦 (XIE Zhibang) <Yeking@Red54.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
This commit is contained in:
谢致邦 (XIE Zhibang) 2026-06-30 05:04:21 +00:00 • committed by Jiri Kosina
commit fd7c67d05f
4 changed files with 152 additions and 39 deletions
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