linux-kernel - Re: [PATCH v12 0/3] Firmware Support for USB-HID Devices and CP2112

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Message-ID: <20251127-hasty-malkoha-of-science-e5efd5@kuoka>
Date: Thu, 27 Nov 2025 08:20:03 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Danny Kaehn <danny.kaehn@...xus.com>
Cc: Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Benjamin Tissoires <bentiss@...nel.org>, 
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, Andi Shyti <andi.shyti@...nel.org>, 
	Conor Dooley <conor+dt@...nel.org>, Jiri Kosina <jikos@...nel.org>, devicetree@...r.kernel.org, 
	linux-input@...r.kernel.org, Dmitry Torokhov <dmitry.torokhov@...il.com>, 
	Bartosz Golaszewski <bartosz.golaszewski@...aro.org>, Ethan Twardy <ethan.twardy@...xus.com>, 
	linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org, Leo Huang <leohu@...dia.com>, 
	Arun D Patil <arundp@...dia.com>, Willie Thai <wthai@...dia.com>, 
	Ting-Kai Chen <tingkaic@...dia.com>
Subject: Re: [PATCH v12 0/3] Firmware Support for USB-HID Devices and CP2112

On Wed, Nov 26, 2025 at 11:05:23AM -0600, Danny Kaehn wrote:
> This patchset allows USB-HID devices to have Firmware bindings through sharing
> the USB fwnode with the HID driver, and adds such a binding and driver
> implementation for the CP2112 USB to SMBus Bridge (which necessitated the
> USB-HID change). This change allows a CP2112 permanently attached in hardware to
> be described in DT and ACPI and interoperate with other drivers.
> 
> Changes in v12:
> - dt-binding changes:
>   - Drop "on the host controller" from top-level description based on
>       comment from Rob H.
>   - Correct "Properties must precede subnodes" dt_binding_check error by
>       moving gpio_chip-related properties above the i2c subnode in the
>       binding and in the example.
>   - Include `interrupt-controller` property in the example
> - Modify hid-cp2112.c to support separate schemas for DT vs. ACPI - DT
>   combines gpio subnode with the CP2112's node, but will have an I2C
>   subnode; while ACPI will maintain separate child nodes for the GPIO
>   I2C devices

That's a b4 managed patch, so I wonder what happened with all the lore
links to previous versions.

Best regards,
Krzysztof