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Message-ID: <20250317083911.GA17428@francesco-nb>
Date: Mon, 17 Mar 2025 09:39:11 +0100
From: Francesco Dolcini <francesco@...cini.it>
To: Andy Shevchenko <andy@...nel.org>
Cc: Francesco Dolcini <francesco@...cini.it>,
Emanuele Ghidoli <ghidoliemanuele@...il.com>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Emanuele Ghidoli <emanuele.ghidoli@...adex.com>,
Francesco Dolcini <francesco.dolcini@...adex.com>,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-i2c@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
soc@...nel.org, Hans de Goede <hdegoede@...hat.com>,
Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Subject: Re: [RFC PATCH v1 2/2] platform: toradex: add preliminary support
for Embedded Controller
Hello Andy,
thanks for the review.
On Thu, Mar 13, 2025 at 04:53:35PM +0200, Andy Shevchenko wrote:
> On Thu, Mar 13, 2025 at 03:43:31PM +0100, Francesco Dolcini wrote:
>
> > Add new platform driver for the Embedded Controller currently used
> > in Toradex SMARC iMX8MP and SMARC iMX95.
> > It currently provides power-off and restart (reset) handlers.
...
> > + err = regmap_bulk_read(ec->regmap, EC_CHIP_ID_REG, ®_val, EC_ID_VERSION_LEN);
> > + if (err)
> > + return dev_err_probe(dev, err,
> > + "Cannot read id and version registers\n");
> > +
> > + dev_info(dev, "Toradex Embedded Controller id %x - Firmware %d.%d\n",
>
> Specifiers are semirandom. Why signed? Why x and not %u?
The firmware version ("Firmware %d.%d") is two unsigned decimal number,
so yes, I will change to "Firmware %u.%u".
The ID is just an identifier that is documented as hex, therefore I
think that the most convenient way to display it is as a hex number.
Francesco
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