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Date:   Wed, 2 Dec 2020 08:32:43 +0900
From:   Jaehoon Chung <jh80.chung@...sung.com>
To:     Marek Szyprowski <m.szyprowski@...sung.com>,
        linux-samsung-soc@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Sylwester Nawrocki <s.nawrocki@...sung.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        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>,
        Markus Reichl <m.reichl@...etechno.de>
Subject: Re: [PATCH] phy: samsung: Fix build break in USB2 PHY driver for
 Exynos5420 SoCs

On 12/2/20 2:09 AM, Marek Szyprowski wrote:
> Exynos5420 variant of USB2 PHY is handled by the same code as the
> Exynos5250 one. Introducing a separate Kconfig symbol for it was an
> over-engineering, which turned out to cause build break for certain
> configurations:
> 
> ERROR: modpost: "exynos5420_usb2_phy_config" [drivers/phy/samsung/phy-exynos-usb2.ko] undefined!
> 
> Fix this by removing PHY_EXYNOS5420_USB2 symbol and using
> PHY_EXYNOS5250_USB2 also for Exynos5420 SoCs.
> 
> Reported-by: Markus Reichl <m.reichl@...etechno.de>
> Fixes: 81b534f7e9b2 ("phy: samsung: Add support for the Exynos5420 variant of the USB2 PHY")
> Signed-off-by: Marek Szyprowski <m.szyprowski@...sung.com>

Reviewed-by: Jaehoon Chung <jh80.chung@...sung.com>

Best Regards,
Jaehoon Chung

> ---
> Vinod: this a fix to the patch merged yesterday. If you want me to resend
> a fixed initial patch, let me know.
> ---
>  drivers/phy/samsung/Kconfig            | 7 +------
>  drivers/phy/samsung/phy-samsung-usb2.c | 2 --
>  2 files changed, 1 insertion(+), 8 deletions(-)
> 
> diff --git a/drivers/phy/samsung/Kconfig b/drivers/phy/samsung/Kconfig
> index 0f51d3bf38cc..e20d2fcc9fe7 100644
> --- a/drivers/phy/samsung/Kconfig
> +++ b/drivers/phy/samsung/Kconfig
> @@ -64,12 +64,7 @@ config PHY_EXYNOS4X12_USB2
>  config PHY_EXYNOS5250_USB2
>  	bool
>  	depends on PHY_SAMSUNG_USB2
> -	default SOC_EXYNOS5250
> -
> -config PHY_EXYNOS5420_USB2
> -	bool
> -	depends on PHY_SAMSUNG_USB2
> -	default SOC_EXYNOS5420
> +	default SOC_EXYNOS5250 || SOC_EXYNOS5420
>  
>  config PHY_S5PV210_USB2
>  	bool "Support for S5PV210"
> diff --git a/drivers/phy/samsung/phy-samsung-usb2.c b/drivers/phy/samsung/phy-samsung-usb2.c
> index 3908153f2ce5..ec2befabeea6 100644
> --- a/drivers/phy/samsung/phy-samsung-usb2.c
> +++ b/drivers/phy/samsung/phy-samsung-usb2.c
> @@ -127,8 +127,6 @@ static const struct of_device_id samsung_usb2_phy_of_match[] = {
>  		.compatible = "samsung,exynos5250-usb2-phy",
>  		.data = &exynos5250_usb2_phy_config,
>  	},
> -#endif
> -#ifdef CONFIG_PHY_EXYNOS5420_USB2
>  	{
>  		.compatible = "samsung,exynos5420-usb2-phy",
>  		.data = &exynos5420_usb2_phy_config,
> 

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