linux-kernel - Re: [PATCH 1/2] phy: samsung: Add support for the Exynos5420 variant of the USB2 PHY

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Date:   Fri, 20 Nov 2020 12:00:51 +0100
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Marek Szyprowski <m.szyprowski@...sung.com>
Cc:     linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Sylwester Nawrocki <s.nawrocki@...sung.com>,
        Vinod Koul <vkoul@...nel.org>,
        Kishon Vijay Abraham I <kishon@...com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Willy Wolff <willy.mh.wolff.ml@...il.com>,
        Marian Mihailescu <mihailescu2m@...il.com>
Subject: Re: [PATCH 1/2] phy: samsung: Add support for the Exynos5420 variant
 of the USB2 PHY

On Fri, Nov 20, 2020 at 09:56:36AM +0100, Marek Szyprowski wrote:
> Exynos5420 differs a bit from Exynos5250 in USB2 PHY related registers in
> the PMU region. Add a variant for the Exynos5420 case. Till now, USB2 PHY
> worked only because the bootloader enabled the PHY, but then driver messed
> USB 3.0 DRD related registers during the suspend/resume cycle.
> 
> Signed-off-by: Marek Szyprowski <m.szyprowski@...sung.com>
> ---
>  .../devicetree/bindings/phy/samsung-phy.txt   |  1 +
>  drivers/phy/samsung/Kconfig                   |  7 ++-
>  drivers/phy/samsung/phy-exynos5250-usb2.c     | 48 +++++++++++++------
>  drivers/phy/samsung/phy-samsung-usb2.c        |  6 +++
>  drivers/phy/samsung/phy-samsung-usb2.h        |  1 +
>  5 files changed, 48 insertions(+), 15 deletions(-)
> 

Acked-by: Krzysztof Kozlowski <krzk@...nel.org>

Best regards,
Krzysztof