linux-kernel - Re: [PATCH v6 9/9] usb: misc: onboard

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Date: Thu, 29 Feb 2024 19:54:38 +0000
From: Matthias Kaehlcke <mka@...omium.org>
To: Javier Carrasco <javier.carrasco@...fvision.net>
Cc: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Helen Koike <helen.koike@...labora.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>, Russell King <linux@...linux.org.uk>,
	linux-sound@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
	dri-devel@...ts.freedesktop.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v6 9/9] usb: misc: onboard_dev: add support for XMOS
 XVF3500

On Thu, Feb 29, 2024 at 09:34:52AM +0100, Javier Carrasco wrote:
> The XMOS XVF3500 VocalFusion Voice Processor[1] is a low-latency, 32-bit
> multicore controller for voice processing.
> 
> This device requires a specific power sequence, which consists of
> enabling the regulators that control the 3V3 and 1V0 device supplies,
> and a reset de-assertion after a delay of at least 100ns.
> 
> Once in normal operation, the XVF3500 registers itself as a USB device,
> and it does not require any device-specific operations in the driver.
> 
> [1] https://www.xmos.com/xvf3500/
> 
> Signed-off-by: Javier Carrasco <javier.carrasco@...fvision.net>

Acked-by: Matthias Kaehlcke <mka@...omium.org>