linux-kernel - Re: [PATCH v3 2/6] phy: exynos5-usbdrd: support isolating HS and SS ports independently

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Message-ID: <CADrjBPpRCuQwLOG35mjAc==6mD4rgx2HzqLHgCA8fNGg79YOnw@mail.gmail.com>
Date: Mon, 24 Jun 2024 12:20:26 +0100
From: Peter Griffin <peter.griffin@...aro.org>
To: André Draszik <andre.draszik@...aro.org>
Cc: Vinod Koul <vkoul@...nel.org>, Kishon Vijay Abraham I <kishon@...nel.org>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Marek Szyprowski <m.szyprowski@...sung.com>, Sylwester Nawrocki <s.nawrocki@...sung.com>, 
	Alim Akhtar <alim.akhtar@...sung.com>, Sam Protsenko <semen.protsenko@...aro.org>, 
	Krzysztof Kozlowski <krzk@...nel.org>, Tudor Ambarus <tudor.ambarus@...aro.org>, 
	Will McVicker <willmcvicker@...gle.com>, Roy Luo <royluo@...gle.com>, kernel-team@...roid.com, 
	linux-phy@...ts.infradead.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
	linux-samsung-soc@...r.kernel.org
Subject: Re: [PATCH v3 2/6] phy: exynos5-usbdrd: support isolating HS and SS
 ports independently

Hi André,

On Mon, 17 Jun 2024 at 17:45, André Draszik <andre.draszik@...aro.org> wrote:
>
> Some versions of this IP have been integrated using separate PMU power
> control registers for the HS and SS parts. One example is the Google
> Tensor gs101 SoC.
>
> Such SoCs can now set pmu_offset_usbdrd0_phy_ss in their
> exynos5_usbdrd_phy_drvdata for the SS phy to the appropriate value.
>
> The existing 'usbdrdphy' alias can not be used in this case because
> that is meant for determining the correct PMU offset if multiple
> distinct PHYs exist in the system (as opposed to one PHY with multiple
> isolators).
>
> Signed-off-by: André Draszik <andre.draszik@...aro.org>
>
> ---

Reviewed-by:  Peter Griffin <peter.griffin@...aro.org>
and
Tested-by: Peter Griffin <peter.griffin@...aro.org>

Tested using my Pixel 6 pro device. USB comes up and it is possible to
use adb from the host to the phone

regards,

Peter

[..]