linux-kernel - Re: [PATCH 5/9] phy: exynos5-usbdrd: fix EDS distribution tuning (gs101)

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Message-ID: <CADrjBPqUUXxjKapaSdWQz2PL8MsYVr74HCP_OqZZSG4w58_U1Q@mail.gmail.com>
Date: Fri, 29 Nov 2024 09:22:20 +0000
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>, Tudor Ambarus <tudor.ambarus@...aro.org>, 
	Sam Protsenko <semen.protsenko@...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 5/9] phy: exynos5-usbdrd: fix EDS distribution tuning (gs101)

Hi André,

On Wed, 27 Nov 2024 at 10:58, André Draszik <andre.draszik@...aro.org> wrote:
>
> This code's intention is to configure lane0 and lane2 tunings, but for
> lane2 there is a typo and it ends up tuning something else.
>
> Fix the typo, as it doesn't appear to make sense to apply different
> tunings for lane0 vs lane2.
>
> The same typo appears to exist in the bootloader, hence we restore the
> original value in the typo'd registers as well. This can be removed
> once / if the bootloader is updated.
>
> Note that this is incorrect in the downstream driver as well - the
> values had been copied from there.
>
> Signed-off-by: André Draszik <andre.draszik@...aro.org>
> ---

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

Validated that a super-speed USB link is established between Pixel 6
phone and my laptop with this patch applied and that adb works.

regards,

Peter