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From: Guenter Roeck <linux@roeck-us.net>
To: Changhuang Liang <changhuang.liang@starfivetech.com>
Cc: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	linux-kernel@vger.kernel.org, linux-hwmon@vger.kernel.org,
	devicetree@vger.kernel.org
Subject: Re: [PATCH v6 2/2] hwmon: (starfive-pwm-fan) Add PWM fan driver for StarFive JHB100
Date: Mon, 26 Oct 2026 14:02:27 -0700	[thread overview]
Message-ID: <ddf7f5b4-9166-443b-9105-807f77307bb7@roeck-us.net> (raw)
In-Reply-To: <20261008071950.4772-3-changhuang.liang@starfivetech.com>

On Thu, Oct 08, 2026 at 12:19:50AM -0700, Changhuang Liang wrote:
> Add PWM fan controller driver for StarFive JHB100 SoC.
> 
> Fan speed is controlled through up to 8 PWM channels supplied by an
> external PWM controller and exposed as pwm[1-8], and one PWM channel can
> drive up to two fans. The tachometer block supports 16 independent
> inputs and reports fan speed in RPM through the hwmon sysfs interface,
> along with stall and low-speed alarms.
> 
> For this controller, the special clock and reset operation sequence is:
>   probe: clk_prepare_enable() then reset_control_deassert()
>   remove: clk_disable_unprepare() then reset_control_assert()
> 
> Co-developed-by: William Qiu <william.qiu@starfivetech.com>
> Signed-off-by: William Qiu <william.qiu@starfivetech.com>
> Signed-off-by: Changhuang Liang <changhuang.liang@starfivetech.com>

Applied.

Thanks,
Guenter

      reply	other threads:[~2026-10-26 21:02 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-08  7:19 [PATCH v6 0/2] Add JHB100 Fan-Tach support Changhuang Liang
2026-10-08  7:19 ` [PATCH v6 1/2] dt-bindings: hwmon: Add starfive,jhb100-pwm-fan Changhuang Liang
2026-10-26 20:59   ` Guenter Roeck
2026-10-08  7:19 ` [PATCH v6 2/2] hwmon: (starfive-pwm-fan) Add PWM fan driver for StarFive JHB100 Changhuang Liang
2026-10-26 21:02   ` Guenter Roeck [this message]

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