linux-kernel - Re: [PATCH v2 5/8] phy: phy-snps-eusb2: make repeater optional

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Message-ID: <Z7xF66TctF2wuoGj@linaro.org>
Date: Mon, 24 Feb 2025 12:11:55 +0200
From: Abel Vesa <abel.vesa@...aro.org>
To: Ivaylo Ivanov <ivo.ivanov.ivanov1@...il.com>
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>,
	Alim Akhtar <alim.akhtar@...sung.com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	linux-arm-msm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org, linux-phy@...ts.infradead.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 5/8] phy: phy-snps-eusb2: make repeater optional

On 25-02-23 14:22:24, Ivaylo Ivanov wrote:
> Some platforms initialize their eUSB2 to USB repeater in the previous
> stage bootloader and leave it in a working state for linux. Make the
> repeater optional in order to allow for reusing that state until
> proper repeater drivers are introduced.
> 
> Signed-off-by: Ivaylo Ivanov <ivo.ivanov.ivanov1@...il.com>
> ---
>  drivers/phy/phy-snps-eusb2.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/phy/phy-snps-eusb2.c b/drivers/phy/phy-snps-eusb2.c
> index 4e5914a76..dcc69c00a 100644
> --- a/drivers/phy/phy-snps-eusb2.c
> +++ b/drivers/phy/phy-snps-eusb2.c
> @@ -461,7 +461,7 @@ static int snps_eusb2_hsphy_probe(struct platform_device *pdev)
>  		return dev_err_probe(dev, ret,
>  				     "failed to get regulator supplies\n");
>  
> -	phy->repeater = devm_of_phy_get_by_index(dev, np, 0);
> +	phy->repeater = devm_of_phy_optional_get(dev, np, 0);

Maybe make it optional based on compatible or something?

>  	if (IS_ERR(phy->repeater))
>  		return dev_err_probe(dev, PTR_ERR(phy->repeater),
>  				     "failed to get repeater\n");
> -- 
> 2.43.0
>