From: Umang Jain <uajain@igalia.com>
To: "Rafael J . Wysocki" <rafael@kernel.org>, Len Brown <lenb@kernel.org>
Cc: linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel-dev@igalia.com, Umang Jain <uajain@igalia.com>
Subject: [PATCH v3 0/2] acpi: battery: Query BCT method for steamdeck
Date: Wed, 14 Oct 2026 22:45:56 +0200 [thread overview]
Message-ID: <20261014204558.466130-1-uajain@igalia.com> (raw)
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@igalia.com/
v1:
https://lore.kernel.org/all/20260918135628.2322188-1-uajain@igalia.com/
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(-)
--
2.55.0
next reply other threads:[~2026-10-14 20:44 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-14 20:45 Umang Jain [this message]
2026-10-14 20:45 ` [PATCH v3 1/2] acpi: battery: Introduce Valve steamdeck devices quirk Umang Jain
2026-10-14 20:45 ` [PATCH v3 2/2] acpi: battery: Read Battery charge time for Steamdeck devices Umang Jain
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