[PATCH v3] arm: irq: l2c: do not print error in case of missing l2c from dtb

Hello Andi,

On Tue, Jan 12, 2016 at 7:11 AM, Andi Shyti [off-list ref] wrote:

In some architectures the L2 cache controller is integrated in the
processor's block itself and it doesn't use any external cache
controller. This means that an entry in the board's dtb related
to the l2c is not necessary.

Distinguish between error codes and do not print anything in case
l2x0_of_init() doesn't find any L2C DTB entry and returns -ENODEV.

This patch mutes the following error message:

   L2C: failed to init: -19

on boards like odroid-xu4, cortex A7/A15, which don't have
external cache controller.

The patch also looks good to me and makes the error message to go away
in my Exynos5800 Peach Pi.

Reviewed-by: Javier Martinez Canillas <redacted>
Tested-by: Javier Martinez Canillas <redacted>

Best regards,
Javier