linux-kernel - Re: [PATCH 1/6] platform-drivers: msm: add single-wire serial bus interface (SSBI) driver

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Message-ID: <8yafw07ujr3.fsf@huya.qualcomm.com>
Date:	Thu, 07 Mar 2013 10:50:40 -0800
From:	David Brown <davidb@...eaurora.org>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Kenneth Heitke <kheitke@...eaurora.org>,
	linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/6] platform-drivers: msm: add single-wire serial bus interface (SSBI) driver

Greg Kroah-Hartman <gregkh@...uxfoundation.org> writes:

>> Without this device, the PMIC drivers won't work, regulators can't be
>> turned on, and most of the other devices won't work.  I can try if it
>> can still be made a module, and it might be good at exercising the
>> deferred probe mechanism.
>
> If the PMIC drivers are dependant on the symbols in this module, there
> should not be any problems, right?

The PMIC drivers directly will be, but the users of gpios/irqs and
regulators coming from the PMIC will only depend on the generic APIs for
this.  In theory, the deferred probe should handle this, and it might
be useful for testing.

I can allow it to be a module, although I don't picture that really
being a useful configuration.

David

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