linux-kernel - regmap: Failed to create debugfs directory

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Message-ID: <CAOMZO5BsSpi_40ky5L_XafxNULnprphv9nhPCQVNgi+vmexD+Q@mail.gmail.com>
Date:   Thu, 1 Mar 2018 15:19:50 -0300
From:   Fabio Estevam <festevam@...il.com>
To:     Mark Brown <broonie@...nel.org>
Cc:     brgl@...ev.pl, david@...hnology.com,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: regmap: Failed to create debugfs directory

Hi,

Running linux-next 20180301 on a imx6q-sabresd the following
regmap-debugfs warnings are seen:

[    0.067965] CPU identified as i.MX6Q, silicon rev 1.2
[    0.083466] vdd1p1: supplied by regulator-dummy
[    0.084768] vdd3p0: supplied by regulator-dummy
[    0.085816] vdd2p5: supplied by regulator-dummy
[    0.109831] (NULL device *): Failed to create debugfs directory
....

[    2.961117] input: EETI eGalax Touch Screen as
/devices/soc0/soc/2100000.aips-bus/21a8000.i2c/i2c-2/2-0004/input/input0
[    2.977027] (NULL device *): Failed to create debugfs directory
[    2.983929] snvs_rtc 20cc000.snvs:snvs-rtc-lp: rtc core: registered
20cc000.snvs:snvs-rtc-lp as rtc0
[    2.993457] i2c /dev entries driver
[    3.002084] (NULL device *): Failed to create debugfs directory
[    3.010452] imx2-wdt 20c0000.wdog: timeout 60 sec (nowayout=0)

I haven't started to debug this yet, but would like to know if anyone
has any ideas?

Thanks,

Fabio Estevam