Re: [PATCH v3 0/2] acpi: battery: Query BCT method for steamdeck

From: Umang Jain

Date: Fri Nov 06 2026 - 10:44:03 EST


Hello,

Gentle ping for review?

On 2026-10-14 20:45, Umang Jain wrote:
> Short series to query Battery charge time ("_BCT") from ACPI tables
> for steamdeck devices.
>
> Patch 1/2 introduces the steamdeck device battery quirk.
> Patch 2/2 handles the case where steamdeck devices can report "Charging"
> even when low power PSU is connected which is discharging the device.
>
> Changes in v3:
> - Only query BCT method for the steamdeck quirk
> - Drop charge_time member from battery object
> - check for returned value from acpi_evaluate_integer for max
> ACPI_UINT32_MAX bounds as per the spec
>
> Changes in v2:
> - comment improvements
> - split off BCT method handling into separate patch
> - https://lore.kernel.org/all/20260923082932.1049270-1-uajain@xxxxxxxxxx/
>
> v1:
> https://lore.kernel.org/all/20260918135628.2322188-1-uajain@xxxxxxxxxx/
>
>
> Umang Jain (2):
> acpi: battery: Introduce Valve steamdeck devices quirk
> acpi: battery: Read Battery charge time for Steamdeck devices
>
> drivers/acpi/battery.c | 45 +++++++++++++++++++++++++++++++++++++++++-
> 1 file changed, 44 insertions(+), 1 deletion(-)