linux-kernel - RE: [PATCH v2] i2c: tegra: Add ACPI support

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Date:   Wed, 24 Nov 2021 16:40:16 +0000
From:   Akhil R <akhilrajeev@...dia.com>
To:     Dmitry Osipenko <digetx@...il.com>,
        "andy.shevchenko@...il.com" <andy.shevchenko@...il.com>,
        "christian.koenig@....com" <christian.koenig@....com>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Laxman Dewangan <ldewangan@...dia.com>,
        "linaro-mm-sig@...ts.linaro.org" <linaro-mm-sig@...ts.linaro.org>,
        "linux-i2c@...r.kernel.org" <linux-i2c@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
        "linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
        "p.zabel@...gutronix.de" <p.zabel@...gutronix.de>,
        "sumit.semwal@...aro.org" <sumit.semwal@...aro.org>,
        "thierry.reding@...il.com" <thierry.reding@...il.com>
CC:     Shardar Mohammed <smohammed@...dia.com>
Subject: RE: [PATCH v2] i2c: tegra: Add ACPI support

> 24.11.2021 10:18, Akhil R пишет:
> >> *i2c_dev)
> >>>               i2c_dev->is_vi = true;  }
> >> How are you going to differentiate the VI I2C from a non-VI? This
> >> doesn't look right.
> > This patch adds the ACPI support to only non-VI I2C. The device_ids in
> > match table are added accordingly. I suppose, of_device_is_compatible
> > always returns false as there is no device tree.
> > Agree with the other comments.
> 
> Will the VI I2C have a different ACPI ID or how it's going to work?
As there is a different compatible for VI I2C in device tree, I suppose the ACPI
would have a different ID as well. I think the logic would also need an update 
if to have VI I2C using the ACPI. But that wasn't actually considered in this patch.

Best Regards,
Akhil