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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Randy Dunlap <rdunlap@infradead.org>
Cc: Hans de Goede <hdegoede@redhat.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Lee Jones <lee@kernel.org>, Mark Brown <broonie@kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [GIT PULL] Backlight for v6.1
Date: Thu, 20 Oct 2022 16:48:49 +0300	[thread overview]
Message-ID: <Y1FRwfeX+ynmHxPm@smile.fi.intel.com> (raw)
In-Reply-To: <e0fb158f-81af-8f3d-5d8b-c4c423feec6c@infradead.org>

On Wed, Oct 19, 2022 at 08:31:33PM -0700, Randy Dunlap wrote:
> On 10/9/22 05:58, Hans de Goede wrote:
> > On 10/9/22 01:23, Linus Torvalds wrote:
> >> On Sat, Oct 8, 2022 at 12:59 PM Hans de Goede <hdegoede@redhat.com> wrote:

...

> >> Because if it depends on some symbols from I2C_DESIGNWARE_PLATFORM,
> >> and that one can be a module, then the Intel PMIC driver also needs to
> >> be built as a module to just get the build coverage, at least.
> 
> I don't see intel_soc_pmic_crc.c using any direct calls into
> i2c-designware-platform code. If it calls into it, it must be thru some
> indirect pointers (?).

It's on hardware level, the PMIC is connected to the I²C host controller,
which is Synopsys DesignWare and being services by the respective driver.

Any access to the PMIC's registers requires the I²C to be involved.
What we talked above is even bigger loop, that takes AML code in
the chain.

-- 
With Best Regards,
Andy Shevchenko



  reply	other threads:[~2022-10-20 13:49 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-05 12:44 Lee Jones
2022-10-05 17:59 ` Linus Torvalds
2022-10-07 13:16   ` Lee Jones
2022-10-07 18:45     ` Linus Torvalds
2022-10-08 18:30       ` Andy Shevchenko
2022-10-08 19:02         ` Linus Torvalds
2022-10-08 19:59           ` Hans de Goede
2022-10-08 23:23             ` Linus Torvalds
2022-10-09 12:58               ` Hans de Goede
2022-10-20  3:31                 ` Randy Dunlap
2022-10-20 13:48                   ` Andy Shevchenko [this message]
2022-10-20 13:53                     ` Hans de Goede
2022-10-10  7:42       ` Lee Jones
2022-10-05 18:40 ` pr-tracker-bot

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