linux-kernel - Re: [PATCH] phy: Return NULL if the PHY is optional (part two)

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Date:   Fri, 20 Jan 2023 12:41:11 +0530
From:   Vinod Koul <vkoul@...nel.org>
To:     Geert Uytterhoeven <geert+renesas@...der.be>
Cc:     Kishon Vijay Abraham I <kishon@...nel.org>,
        Maxime Ripard <mripard@...nel.org>,
        Andrew Lunn <andrew@...n.ch>, linux-phy@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] phy: Return NULL if the PHY is optional (part two)

On 18-01-23, 11:02, Geert Uytterhoeven wrote:
> If we're trying to get a handle to an optional PHY, then the PHY
> framework being disabled shouldn't return a hard error.
> 
> Instead, return NULL just like phy_optional_get() does when there's no
> PHY provided in the DT.
> 
> Based on commit 11a6e41c0ee503ff ("phy: Return NULL if the phy is
> optional"), which did the same thing for devm_phy_optional_get().
> 
> Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
> ---
> It seems there were never any in-tree users of this function since its
> introduction in 788a4d56ff378bff ("drivers: phy: Add support for
> optional phys") in v3.14.
> Perhaps it should be removed?

Ack, devm_phy_optional_get() is used by bunch of folks, but not this
one, so lets retire this

> ---
>  include/linux/phy/phy.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
> index b1413757fcc3b89b..559c3da515073697 100644
> --- a/include/linux/phy/phy.h
> +++ b/include/linux/phy/phy.h
> @@ -429,7 +429,7 @@ static inline struct phy *phy_get(struct device *dev, const char *string)
>  static inline struct phy *phy_optional_get(struct device *dev,
>  					   const char *string)
>  {
> -	return ERR_PTR(-ENOSYS);
> +	return NULL;
>  }
>  
>  static inline struct phy *devm_phy_get(struct device *dev, const char *string)
> -- 
> 2.34.1

-- 
~Vinod