[PATCH] phy: tegra: xusb: Don't warn on probe defer

[PATCH] phy: tegra: xusb: Don't warn on probe defer

[Jon Hunter]

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@nvidia.com>
---
 drivers/phy/tegra/xusb-tegra186.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

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

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

[Thierry Reding]

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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@nvidia.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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Re: [PATCH] phy: tegra: xusb: Don't warn on probe defer

[Kishon Vijay Abraham I]

Hi Thierry,

On 24/02/20 8:42 pm, Thierry Reding wrote:
> 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@nvidia.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?

You can take this via Tegra tree itself.

Acked-by: Kishon Vijay Abraham I <kishon@ti.com>

-Kishon

> 
> 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
>>