linux-kernel - Re: [PATCH v2] regulator: core: Enable voltage balancing

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Message-ID: <20180615112916.GK112168@atomide.com>
Date:   Fri, 15 Jun 2018 04:29:16 -0700
From:   Tony Lindgren <tony@...mide.com>
To:     Maciej Purski <m.purski@...sung.com>
Cc:     Mark Brown <broonie@...nel.org>, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-omap@...r.kernel.org,
        Carlos Hernandez <ceh@...com>,
        Marek Szyprowski <m.szyprowski@...sung.com>
Subject: Re: [PATCH v2] regulator: core: Enable voltage balancing

Hi,

* Maciej Purski <m.purski@...sung.com> [180613 10:39]:
> Call regulator_balance_voltage() instead of set_voltage_rdev()
> in set_voltage_unlocked() and in enabling and disabling functions,
> but only if the regulator is coupled.
> 
> Signed-off-by: Maciej Purski <m.purski@...sung.com>
> 
> ---
> Changes in v2:
> - fix compile errors
> - make debug messages more informative

Thanks for updating it. This series still hangs after loading
modules on beagleboard-x15:

[   26.679749] smps12: regulator_set_voltage: 3381
[   26.684529] smps12: regulator_set_voltage_unlocked:  3045
[   26.695616] smps12: _regulator_do_set_voltage: 2912
[   26.701275] smps12: regulator_set_voltage: 3381
[   26.706002] smps12: regulator_set_voltage_unlocked:  3045
[   26.712349] smps12: _regulator_do_set_voltage: 2912
[   26.719329] abb_mpu: regulator_set_voltage: 3381
[   26.724105] abb_mpu: regulator_set_voltage_unlocked:  3045

So it seems to be the abb_mpu where it hangs?

Regards,

Tony