From: sashiko-bot@kernel.org
To: "Alexei Solcanu" <alexei.solcanu@pm.me>
Cc: linux-hwmon@vger.kernel.org
Subject: Re: [PATCH] hwmon: (gpd-fan) Reset both fans to automatic on duo boards
Date: Sat, 26 Sep 2026 00:22:11 +0000 [thread overview]
Message-ID: <20260926002211.B70FF1F000FF@smtp.kernel.org> (raw)
In-Reply-To: <20260925-gpd-fan-duo-auto-v1-1-29bb670b3331@pm.me>
> From: Alexei Solcanu <alexei.solcanu@pm.me>
>
> On boards using gpd_duo_drvdata (GPD Duo, GPD Win 5), writing
> pwm1_enable=2 only returns the first fan to EC control. The second fan
> keeps its last manual duty cycle, e.g. full speed after pwm1=255, so a
> fan control tool that exits leaves it running at that speed.
>
> gpd_duo_write_pwm() writes both fan registers (pwm_write and
> pwm_write + 1), but switching to automatic only clears pwm_write.
> Also clear pwm_write + 1, so both fans return to EC control.
>
> Tested on a GPD Win 5 (G1618-05). Not tested on the GPD Duo.
>
> Fixes: 0ab88e239439 ("hwmon: add GPD devices sensor driver")
> Assisted-by: LLM
> Signed-off-by: Alexei Solcanu <alexei.solcanu@pm.me>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260925-gpd-fan-duo-auto-v1-1-29bb670b3331@pm.me?part=1
next prev parent reply other threads:[~2026-09-26 0:22 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-26 0:13 [PATCH] hwmon: (gpd-fan) Reset both fans to automatic on duo boards Alexei Solcanu via B4 Relay
2026-09-26 0:13 ` Alexei Solcanu
2026-09-26 0:22 ` sashiko-bot [this message]
2026-09-26 1:46 ` Guenter Roeck
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