From: Daniel Lezcano <daniel.lezcano@oss.qualcomm.com>
To: linux-kernel-dev@aliel.fr,
Neil Armstrong <neil.armstrong@linaro.org>,
Lee Jones <lee@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Andi Shyti <andi.shyti@kernel.org>,
Kevin Hilman <khilman@baylibre.com>,
Jerome Brunet <jbrunet@baylibre.com>,
Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
Beniamino Galvani <b.galvani@gmail.com>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Daniel Lezcano <daniel.lezcano@kernel.org>,
Zhang Rui <rui.zhang@intel.com>,
Lukasz Luba <lukasz.luba@arm.com>,
Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>
Cc: linux-amlogic@lists.infradead.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org,
mfd@lists.linux.dev
Subject: Re: [PATCH v12 4/6] thermal: khadas-mcu-fan: Add fan config from platform data Add regulator support
Date: Fri, 18 Sep 2026 11:12:29 +0200 [thread overview]
Message-ID: <45768828-d0a7-40c1-8eec-3a1fb2d66a71@oss.qualcomm.com> (raw)
In-Reply-To: <20260917-add-mcu-fan-khadas-vim4-v12-4-497cd543a148@aliel.fr>
On 9/17/26 09:59, Ronald Claveau via B4 Relay wrote:
> From: Ronald Claveau <linux-kernel-dev@aliel.fr>
>
> Introduce platform name, control register and duty-cycle
> levels per variant.
> VIM4 uses a different register and level set (0-100)
> declared as a list (0, 30, 40, 55, 75, 100) compared
> to previous boards (0-3).
>
> MAX_LEVEL is kept and bumped from 3 to 5 to make
> the speed change more gradual with the newer MCUs.
>
> The cooling device's state is stored as an index into levels[],
> and khadas_mcu_fan_set_level() writes levels[state] to fan_reg,
> rather than writing the raw state value as before.
>
> Optionally acquire and enable a "fan" regulator supply
> at probe time and on resume,
> so boards that gate fan power through a regulator are handled.
> The regulator is released via a devm_add_action_or_reset()
> callback.
>
> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
> Signed-off-by: Ronald Claveau <linux-kernel-dev@aliel.fr>
> ---
Acked-by: Daniel Lezcano <daniel.lezcano@oss.qualcomm.com>
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next prev parent reply other threads:[~2026-09-18 9:12 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-17 7:58 [PATCH v12 0/6] Add VIM4 MCU/FAN support Ronald Claveau via B4 Relay
2026-09-17 7:59 ` [PATCH v12 1/6] mfd: khadas-mcu: Add per-variant configuration infrastructure and VIM4 support Ronald Claveau via B4 Relay
2026-09-17 8:06 ` sashiko-bot
2026-09-17 7:59 ` [PATCH v12 2/6] mfd: khadas-mcu: Use MFD_CELL_* macros for cell declarations Ronald Claveau via B4 Relay
2026-09-17 8:07 ` sashiko-bot
2026-09-18 9:05 ` Neil Armstrong
2026-09-17 7:59 ` [PATCH v12 3/6] mfd: khadas-mcu: Add support for VIM4 MCU variant Ronald Claveau via B4 Relay
2026-09-17 8:11 ` sashiko-bot
2026-09-18 8:46 ` Ronald Claveau
2026-09-17 7:59 ` [PATCH v12 4/6] thermal: khadas-mcu-fan: Add fan config from platform data Add regulator support Ronald Claveau via B4 Relay
2026-09-17 8:13 ` sashiko-bot
2026-09-18 8:54 ` Ronald Claveau
2026-09-18 9:12 ` Daniel Lezcano [this message]
2026-09-17 7:59 ` [PATCH v12 5/6] arm64: dts: amlogic: t7: Add i2c controller node Ronald Claveau via B4 Relay
2026-09-17 8:03 ` sashiko-bot
2026-09-17 7:59 ` [PATCH v12 6/6] arm64: dts: amlogic: t7: khadas-vim4: Add i2c MCU fan node Ronald Claveau via B4 Relay
2026-09-17 8:08 ` sashiko-bot
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