[PATCH] PCI/pwrctl: Decrease message about child OF nodes to debug

[PATCH] PCI/pwrctl: Decrease message about child OF nodes to debug

[superm1]

From: Mario Limonciello <mario.limonciello@amd.com>

commit 8fb18619d910 ("PCI/pwrctl: Create platform devices for child OF
nodes of the port node") introduced a new error message about populating
OF nodes. This message isn't relevant on non-OF platforms, so downgrade
it to debug instead.

Cc: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Cc: Amit Pundir <amit.pundir@linaro.org>
Cc: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD, SM8650-QRD & SM8650-HDK
Cc: Caleb Connolly <caleb.connolly@linaro.org> # OnePlus 8T
Reported-by: Praveenkumar Patil <PraveenKumar.Patil@amd.com>
Fixes: 8fb18619d910 ("PCI/pwrctl: Create platform devices for child OF nodes of the port node")
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
---
 drivers/pci/bus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
index e4735428814d..f21c4ec979b5 100644
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -354,7 +354,7 @@ void pci_bus_add_device(struct pci_dev *dev)
 		retval = of_platform_populate(dev->dev.of_node, NULL, NULL,
 					      &dev->dev);
 		if (retval)
-			pci_err(dev, "failed to populate child OF nodes (%d)\n",
+			pci_dbg(dev, "failed to populate child OF nodes (%d)\n",
 				retval);
 	}
 }
-- 
2.43.0

Re: [PATCH] PCI/pwrctl: Decrease message about child OF nodes to debug

[Bartosz Golaszewski]

On Tue, Jul 2, 2024 at 7:33 PM <superm1@kernel.org> wrote:
>
> From: Mario Limonciello <mario.limonciello@amd.com>
>
> commit 8fb18619d910 ("PCI/pwrctl: Create platform devices for child OF
> nodes of the port node") introduced a new error message about populating
> OF nodes. This message isn't relevant on non-OF platforms, so downgrade
> it to debug instead.
>
> Cc: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> Cc: Amit Pundir <amit.pundir@linaro.org>
> Cc: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD, SM8650-QRD & SM8650-HDK
> Cc: Caleb Connolly <caleb.connolly@linaro.org> # OnePlus 8T
> Reported-by: Praveenkumar Patil <PraveenKumar.Patil@amd.com>
> Fixes: 8fb18619d910 ("PCI/pwrctl: Create platform devices for child OF nodes of the port node")
> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
> ---
>  drivers/pci/bus.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
> index e4735428814d..f21c4ec979b5 100644
> --- a/drivers/pci/bus.c
> +++ b/drivers/pci/bus.c
> @@ -354,7 +354,7 @@ void pci_bus_add_device(struct pci_dev *dev)
>                 retval = of_platform_populate(dev->dev.of_node, NULL, NULL,
>                                               &dev->dev);
>                 if (retval)
> -                       pci_err(dev, "failed to populate child OF nodes (%d)\n",
> +                       pci_dbg(dev, "failed to populate child OF nodes (%d)\n",
>                                 retval);
>         }
>  }
> --
> 2.43.0
>
>

Ah! I was under the impression that of_platform_populate() would
return 0 with !OF but it returns -ENODEV instead...

Maybe do:

if (retval && retval != -ENODEV) and keep pci_err() here?

Bart

Re: [PATCH] PCI/pwrctl: Decrease message about child OF nodes to debug

[Mario Limonciello]

On 7/2/2024 13:00, Bartosz Golaszewski wrote:
> On Tue, Jul 2, 2024 at 7:33 PM <superm1@kernel.org> wrote:
>>
>> From: Mario Limonciello <mario.limonciello@amd.com>
>>
>> commit 8fb18619d910 ("PCI/pwrctl: Create platform devices for child OF
>> nodes of the port node") introduced a new error message about populating
>> OF nodes. This message isn't relevant on non-OF platforms, so downgrade
>> it to debug instead.
>>
>> Cc: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
>> Cc: Amit Pundir <amit.pundir@linaro.org>
>> Cc: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD, SM8650-QRD & SM8650-HDK
>> Cc: Caleb Connolly <caleb.connolly@linaro.org> # OnePlus 8T
>> Reported-by: Praveenkumar Patil <PraveenKumar.Patil@amd.com>
>> Fixes: 8fb18619d910 ("PCI/pwrctl: Create platform devices for child OF nodes of the port node")
>> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
>> ---
>>   drivers/pci/bus.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
>> index e4735428814d..f21c4ec979b5 100644
>> --- a/drivers/pci/bus.c
>> +++ b/drivers/pci/bus.c
>> @@ -354,7 +354,7 @@ void pci_bus_add_device(struct pci_dev *dev)
>>                  retval = of_platform_populate(dev->dev.of_node, NULL, NULL,
>>                                                &dev->dev);
>>                  if (retval)
>> -                       pci_err(dev, "failed to populate child OF nodes (%d)\n",
>> +                       pci_dbg(dev, "failed to populate child OF nodes (%d)\n",
>>                                  retval);
>>          }
>>   }
>> --
>> 2.43.0
>>
>>
> 
> Ah! I was under the impression that of_platform_populate() would
> return 0 with !OF but it returns -ENODEV instead...
> 
> Maybe do:
> 
> if (retval && retval != -ENODEV) and keep pci_err() here?
> 
> Bart

Sure, fine by me.  I'll drop a v2.

Thanks!