Re: [PATCH v2 1/2] dt-bindings: power: supply: gpio-charger: add support for fast-charge timer
From: Sebastian Reichel <hidden>
Date: 2026-01-30 22:13:45
Also in:
linux-pm, lkml
Hi, On Fri, Jan 09, 2026 at 07:41:19PM +0100, Dimitri Fedrau via B4 Relay wrote:
From: Dimitri Fedrau <redacted> On some devices like TIs BQ24081 battery charger it is possible to activate or deactivate a fast-charge timer that provides a backup safety for charge termination via GPIO. In case of the BQ24081 it is a fixed 7-hour timer. Acked-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Dimitri Fedrau <redacted> ---
With the time being charger specific, this is not a good solution for the generic gpio-charger compatible. You should add a compatible for the BQ24081 (using gpio-charger as fallback) and then only allow 'fast-charge-timer-gpios' for the BQ24081. Greetings, -- Sebastian
quoted hunk ↗ jump to hunk
Documentation/devicetree/bindings/power/supply/gpio-charger.yaml | 5 +++++ 1 file changed, 5 insertions(+)diff --git a/Documentation/devicetree/bindings/power/supply/gpio-charger.yaml b/Documentation/devicetree/bindings/power/supply/gpio-charger.yaml index 25826bfc289c1c00c338fd0cee2ae6932529cfc3..0edacc104186497118d4ba41f80947009a9aacf6 100644 --- a/Documentation/devicetree/bindings/power/supply/gpio-charger.yaml +++ b/Documentation/devicetree/bindings/power/supply/gpio-charger.yaml@@ -62,6 +62,10 @@ properties: description: Default charge current limit. Must be listed in charge-current-limit-mapping. + fast-charge-timer-gpios: + maxItems: 1 + description: GPIO used for enabling/disabling the fast-charge timer + required: - compatible@@ -97,4 +101,5 @@ examples: <700000 0x01>, // 700 mA => GPIO A.12 high <0 0x02>; // 0 mA => GPIO A.11 high charge-current-limit-default-microamp = <700000>; + fast-charge-timer-gpios = <&gpioA 13 GPIO_ACTIVE_LOW>; };-- 2.39.5
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