Add support for INT3472 GPIO type 0x02 which controls an IR flood LED
used for face authentication on some laptops (e.g. Dell Pro Max 16
Premium). Without this, the kernel logs "GPIO type 0x02 unknown; the
sensor may not work" and IR sensors paired with a flood LED cannot
function.
The series first refactors the existing LED code (patches 1-3), then
adds the new IR flood LED type with multi-LED support (patch 4).
Changes in v6:
- Renamed LED from "strobe" back to "ir_flood" to describe what the
hardware actually does, per Hans de Goede's review. The internal
define INT3472_GPIO_TYPE_STROBE is kept to match the ACPI _DSM name.
- Used local `led` variable from patch 1 (was `pled`, now `led`
throughout), per Andy's suggestion to reduce churn
- Renamed function parameter from `name` to `con_id` in patch 3
- Replaced `has_lookup` bool with INIT_LIST_HEAD/list_empty check and
renamed parameter to `add_lookup` in patch 4, per Andy's review
- Added #include <linux/list.h> in patch 4
Marco Nenciarini (4):
platform/x86: int3472: Use local variable for LED struct access
platform/x86: int3472: Rename pled to led in LED registration code
platform/x86: int3472: Parameterize LED con_id in registration
platform/x86: int3472: Add support for GPIO type 0x02 (IR flood LED)
drivers/platform/x86/intel/int3472/discrete.c | 16 ++++-
drivers/platform/x86/intel/int3472/led.c | 62 +++++++++++--------
include/linux/platform_data/x86/int3472.h | 13 ++--
3 files changed, 59 insertions(+), 32 deletions(-)
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2.47.3