linux-kernel - Re: [PATCH v5 3/3] i2c: designware: Add doorbell support for Mendocino

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Date:   Wed, 22 Mar 2023 11:32:18 -0600
From:   Mark Hasemeyer <markhas@...omium.org>
To:     Mario Limonciello <mario.limonciello@....com>
Cc:     Grzegorz Bernacki <gjb@...ihalf.com>,
        Jarkko Nikula <jarkko.nikula@...ux.intel.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Jan Dabros <jsd@...ihalf.com>, Held Felix <Felix.Held@....com>,
        linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 3/3] i2c: designware: Add doorbell support for Mendocino

> So either psp_send_platform_access_msg should return 0 for that case
> (expecting caller to investigate more closely) or psp_send_check_i2c_req
> needs to special case -EIO for more investigation.
>
> I lean upon the latter unless you have a strong opinion.

I'm ok with either, but if you go with the latter, the documentation
will need to be updated in psp_send_check_i2c_req as it states that
-EIO is used for basic mailbox comm errors.

> I would expect ToT should run fine on Skyrim.  I'll adjust as you suggested
> if you can please test it.

Sure! I can test the next version you send out.