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Date:   Wed, 20 Jul 2022 21:21:18 +0200
From:   Ettore Chimenti <ek5.chimenti@gmail.com>
To:     linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org,
        stable@vger.kernel.org
Cc:     Hector Martin <marcan@marcan.st>, Jean Delvare <jdelvare@suse.com>,
        Heiner Kallweit <hkallweit1@gmail.com>,
        Wolfram Sang <wsa@kernel.org>,
        Marco Sogli <marco.sogli@seco.com>
Subject: Re: [PATCH v3] i2c: i801: Safely share SMBus with BIOS/ACPI
Message-ID: <20220720192118.x6ayiar7zmavhauu@X1C7EK5>
References: <20210626054113.246309-1-marcan@marcan.st>
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Tested on a SECO SBC-B68 and a UDOO X86.
The BIOS AML code queries the Embedded Controller over SMBus, 
respecting the hardware semaphore implementation.

I get this line on kernel log and everything works as expected.
[    7.270172] i801_smbus 0000:00:1f.3: SMBus controller is shared with ACPI AML. This seems safe so far.

Tested with continous use of i2c-tools (i2cdump) with temperature reads
in thermal_zone (that triggers AML code).

Tested-by: Ettore Chimenti <ek5.chimenti@gmail.com>