From: festevam@gmail.com (Fabio Estevam)
To: linux-arm-kernel@lists.infradead.org
Subject: PMIC driver prevents gpio-leds to work
Date: Tue, 18 Feb 2014 15:59:27 -0300 [thread overview]
Message-ID: <CAOMZO5DWkxv8q+1+LsOYPPLqxXCAW2q9LRXyn-zV-SSSW10AwQ@mail.gmail.com> (raw)
In-Reply-To: <1392749026.163265479@f312.i.mail.ru>
On Tue, Feb 18, 2014 at 3:43 PM, Alexander Shiyan <shc_work@mail.ru> wrote:
> ???????, 18 ??????? 2014, 15:20 -03:00 ?? Fabio Estevam <festevam@gmail.com>:
>> Hi,
>>
>> I am running into the following issue on imx6sl-evk.dts:
>>
>> - I can only get the user GPIO LED to work if I unselect the PFUZE100
>> PMIC driver
>>
>> - This happens on linux-next as well as in the internal FSL kernel based on 3.10
>>
>> With CONFIG_REGULATOR_PFUZE100=y then the LED blinks only once and
>> stops instead of blinking at the heartbeat rate.
>>
>> Changing to CONFIG_REGULATOR_PFUZE100=n then the LED blinks normally.
>>
>> I am not sure how the PMIC driver could interact and make the
>> gpio-leds driver to fail.
>>
>> Any suggestions?
>
> Perhaps, one of regulators turn off the power for a pin-group where LED is connected.
That did the trick, thanks.
I thought that 'regulator-always-on' was enough, but I also need
'regulator-boot-on' as well.
Will submit the patch later today.
Thanks,
Fabio Estevam
next prev parent reply other threads:[~2014-02-18 18:59 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-18 18:20 PMIC driver prevents gpio-leds to work Fabio Estevam
2014-02-18 18:43 ` Alexander Shiyan
2014-02-18 18:59 ` Fabio Estevam [this message]
2014-02-19 3:38 ` Mark Brown
2014-02-19 11:15 ` Fabio Estevam
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