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Date:   Mon, 3 Apr 2023 09:04:04 +0300
From:   Tony Lindgren <tony@atomide.com>
To:     Uwe =?utf-8?Q?Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de>
Cc:     Andreas Kemnade <andreas@kemnade.info>,
        Aaro Koskinen <aaro.koskinen@iki.fi>,
        Janusz Krzysztofik <jmkrzyszt@gmail.com>,
        Vignesh R <vigneshr@ti.com>, linux-omap@vger.kernel.org,
        linux-i2c@vger.kernel.org, kernel@pengutronix.de,
        "Rafael J. Wysocki" <rafael@kernel.org>, linux-pm@vger.kernel.org
Subject: Re: [PATCH] i2c: omap: Don't do pm_runtime_resume in .remove()
Message-ID: <20230403060404.GX7501@atomide.com>
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 <20230402225001.75a32147@aktux>
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Hi,

* Uwe Kleine-König <u.kleine-koenig@pengutronix.de> [230403 05:48]:
> So if there is some clk handling necessary before the register access,
> I'm not aware where it's hidden. Is there some bus or omap specific code
> that ensures clk handling?

I think the missing part is that the runtime PM calls in the i2c driver
cause the parent ti-sysc interconnect target module device to get enabled
and clocked before accessing the i2c registers.

Regards,

Tony