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SubjectRe: [PATCH] mfd: mfd-core: Change "Failed to locate of_node" warning to debug
On Wed, 16 Jun 2021, Yunus Bas wrote:

> The MFD-core iterates through all subdevices of the corresponding
> MFD-device and checks, if the devicetree subnode has a fitting compatible.
> When nothing is found, a warning is thrown. This can be the case, when it
> is the intention to not use the MFD-device to it's full content.
> Therefore, change the warning to a debug print instead, to also avoid
> irritations.
>
> Signed-off-by: Yunus Bas <y.bas@phytec.de>
> ---
> drivers/mfd/mfd-core.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
> index 6f02b8022c6d..e34c97088943 100644
> --- a/drivers/mfd/mfd-core.c
> +++ b/drivers/mfd/mfd-core.c
> @@ -213,7 +213,7 @@ static int mfd_add_device(struct device *parent, int id,
> }
>
> if (!pdev->dev.of_node)
> - pr_warn("%s: Failed to locate of_node [id: %d]\n",
> + pr_debug("%s: Failed to locate of_node [id: %d]\n",
> cell->name, platform_id);
> }

Can you provide an example of a device tree where this is a problem?

Probably worth popping that in the commit message too.

--
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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