From: Florian Fainelli <florian.fainelli@broadcom.com>
To: "Andrea della Porta" <andrea.porta@suse.com>,
"Uwe Kleine-König" <ukleinek@kernel.org>,
linux-pwm@vger.kernel.org, "Rob Herring" <robh@kernel.org>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Broadcom internal kernel review list"
<bcm-kernel-feedback-list@broadcom.com>,
devicetree@vger.kernel.org, linux-rpi-kernel@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
"Naushir Patuck" <naush@raspberrypi.com>,
"Stanimir Varbanov" <svarbanov@suse.de>,
mbrugger@suse.com, "Sean Young" <sean@mess.org>,
"Julian Braha" <julianbraha@gmail.com>
Subject: Re: [PATCH v7 0/3] Add RP1 PWM controller support
Date: Thu, 3 Sep 2026 13:11:41 -0700 [thread overview]
Message-ID: <be3aac0c-3475-4f48-aaef-765aadcc6b75@broadcom.com> (raw)
In-Reply-To: <cover.1784539788.git.andrea.porta@suse.com>
On 7/20/26 02:44, Andrea della Porta wrote:
> This patchset adds support for the PWM controller found on the
> Raspberry Pi RP1 southbridge. This is necessary to operate the
> cooling fan connected to one of the PWM channels.
>
> The tachometer pin for the fan speed is managed by the firmware
> running on the RP1's M-core. It uses the PHASE2 register
> to report the RPM, which is then exported by this driver via
> syscon registers. A subsequent patch will add a new device
> and driver to read the RPM and export this value via hwmon.
>
> Subsequent patches will also add the CPU thermal zone, which
> acts as a consumer of the PWM device.
>
> Best regards,
> Andrea
Uwe, how do we go about applying these patches? Do you want to take
patch #2 and I take patches #1 and #3 through the Broadcom ARM SoC tree(s)?
--
Florian
prev parent reply other threads:[~2026-09-03 20:11 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-20 9:44 [PATCH v7 0/3] Add RP1 PWM controller support Andrea della Porta
2026-07-20 9:44 ` [PATCH v7 1/3] dt-bindings: pwm: Add Raspberry Pi RP1 PWM controller Andrea della Porta
2026-07-20 9:50 ` sashiko-bot
2026-07-24 14:16 ` Andrea della Porta
2026-07-20 9:44 ` [PATCH v7 2/3] pwm: rp1: Add RP1 PWM controller driver Andrea della Porta
2026-07-20 10:02 ` sashiko-bot
2026-07-24 15:04 ` Andrea della Porta
2026-08-25 18:42 ` Gary Guo
2026-09-04 13:53 ` Andrea della Porta
2026-09-04 14:05 ` Gary Guo
2026-09-04 16:42 ` Andrea della Porta
2026-09-03 20:36 ` Christophe JAILLET
2026-09-04 16:31 ` Andrea della Porta
2026-07-20 9:44 ` [PATCH v7 3/3] arm64: dts: broadcom: rpi-5: Add RP1 PWM node Andrea della Porta
2026-09-03 20:11 ` Florian Fainelli [this message]
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