linux-kernel - Re: [PATCH] phy: tegra: xusb: Don't warn on probe defer

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Message-ID: <20200224151218.GA2570205@ulmo>
Date:   Mon, 24 Feb 2020 16:12:18 +0100
From:   Thierry Reding <thierry.reding@...il.com>
To:     Kishon Vijay Abraham I <kishon@...com>,
        Jon Hunter <jonathanh@...dia.com>
Cc:     linux-kernel@...r.kernel.org, linux-tegra@...r.kernel.org
Subject: Re: [PATCH] phy: tegra: xusb: Don't warn on probe defer

On Mon, Feb 24, 2020 at 02:36:41PM +0000, Jon Hunter wrote:
> Deferred probe is an expected return value for tegra_fuse_readl().
> Given that the driver deals with it properly, there's no need to
> output a warning that may potentially confuse users.
> 
> Signed-off-by: Jon Hunter <jonathanh@...dia.com>
> ---
>  drivers/phy/tegra/xusb-tegra186.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)

Kishon,

I already have a couple of PHY subsystem patches from JC and Nagarjuna
in a branch in the Tegra tree that I need to resolve a dependency. Do
you mind if I pick this up into that branch as well and send it to you
as a pull request later on? Say around v5.6-rc6?

Alternatively you could provide an Acked-by and then I can take them all
through ARM SoC.

Thierry

> diff --git a/drivers/phy/tegra/xusb-tegra186.c b/drivers/phy/tegra/xusb-tegra186.c
> index 84c27394c181..12d0f3e30dbc 100644
> --- a/drivers/phy/tegra/xusb-tegra186.c
> +++ b/drivers/phy/tegra/xusb-tegra186.c
> @@ -802,7 +802,9 @@ tegra186_xusb_read_fuse_calibration(struct tegra186_xusb_padctl *padctl)
>  
>  	err = tegra_fuse_readl(TEGRA_FUSE_SKU_CALIB_0, &value);
>  	if (err) {
> -		dev_err(dev, "failed to read calibration fuse: %d\n", err);
> +		if (err != -EPROBE_DEFER)
> +			dev_err(dev, "failed to read calibration fuse: %d\n",
> +				err);
>  		return err;
>  	}
>  
> -- 
> 2.17.1
> 

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