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Date: Fri, 17 May 2024 16:49:20 +0200
From: Wolfram Sang <wsa+renesas@...g-engineering.com>
To: Alvin Šipraga <alvin@...s.dk>
Cc: Mark Brown <broonie@...nel.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>, "Rafael J. Wysocki" <rafael@...nel.org>,
Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Linus Walleij <linus.walleij@...aro.org>,
Bartosz Golaszewski <brgl@...ev.pl>, Liam Girdwood <lgirdwood@...il.com>,
Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
Michael Turquette <mturquette@...libre.com>, Stephen Boyd <sboyd@...nel.org>,
Andi Shyti <andi.shyti@...nel.org>, Saravana Kannan <saravanak@...gle.com>,
Emil Svendsen <emas@...g-olufsen.dk>, linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
linux-gpio@...r.kernel.org, linux-sound@...r.kernel.org, linux-clk@...r.kernel.org,
linux-i2c@...r.kernel.org, Alvin Šipraga <alsi@...g-olufsen.dk>
Subject: Re: [PATCH 04/13] a2b: add AD24xx I2C interface driver
> + /*
> + * Enforce some basic assumptions this function makes about the
> + * transfer. If this proves insufficient, some more complex logic will
> + * be needed.
> + */
> + if (num > 2 || (num == 2 && msgs[0].addr != msgs[1].addr))
> + return -EOPNOTSUPP;
As you populated 'ad24xx_i2c_adapter_quirks' in the I2C driver, you can
drop this. The I2C core will do the checks for you.
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