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Wed, 29 Oct 2025 15:03:30 -0700 (PDT) Sender: Guenter Roeck Date: Wed, 29 Oct 2025 15:03:29 -0700 From: Guenter Roeck To: Marius Cristea Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jonathan Corbet , linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org Subject: Re: [PATCH 2/2] hwmon: temperature: add support for EMC1812 Message-ID: <86b94f01-ff93-457e-95cc-4e87009964af@roeck-us.net> References: <20251029-hw_mon-emc1812-v1-0-be4fd8af016a@microchip.com> <20251029-hw_mon-emc1812-v1-2-be4fd8af016a@microchip.com> Precedence: bulk X-Mailing-List: linux-hwmon@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251029-hw_mon-emc1812-v1-2-be4fd8af016a@microchip.com> On Wed, Oct 29, 2025 at 05:50:59PM +0200, Marius Cristea wrote: > This is the hwmon driver for Microchip EMC1812/13/14/15/33 > Multichannel Low-Voltage Remote Diode Sensor Family. > > Signed-off-by: Marius Cristea One more ... > +static int emc1812_parse_fw_config(struct emc1812_data *data, struct device *dev) > +{ > + unsigned int reg_nr = 0; > + int ret; > + I added if (!dev_fwnode(dev)) { data->num_channels = data->chip->phys_channels; data->active_ch_mask = BIT(data->num_channels) - 1; return 0; } to be able to load the driver and run basic unit tests. I expect something similar in the final driver. Also, here is the unit test result from writing negative values into the limit registers: temp1_crit: Suspected underflow: [min=0, read 4294903296, written -2147483648] temp1_min: Suspected underflow: [min=0, read 4294903296, written -2147483648] temp1_max: Suspected underflow: [min=0, read 4294903296, written -2147483648] temp2_crit: Suspected underflow: [min=0, read 4294903296, written -2147483648] temp2_min: Suspected underflow: [min=0, read 4294903296, written -2147483648] temp2_max: Suspected underflow: [min=0, read 4294903296, written -2147483648] Thanks, Guenter