2 Commits

Author	SHA1	Message	Date
Dimitri Fedrau	827dca3129	iio: temperature: mcp9600: Fix temperature reading for negative values ... Temperature is stored as 16bit value in two's complement format. Current implementation ignores the sign bit. Make it aware of the sign bit by using sign_extend32. Fixes: 3f6b9598b6 ("iio: temperature: Add MCP9600 thermocouple EMF converter") Signed-off-by: Dimitri Fedrau <dima.fedrau@gmail.com> Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com> Tested-by: Andrew Hepp <andrew.hepp@ahepp.dev> Link: https://lore.kernel.org/r/20240424185913.1177127-1-dima.fedrau@gmail.com Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>	2024-05-03 11:48:56 +01:00
Andrew Hepp	3f6b9598b6	iio: temperature: Add MCP9600 thermocouple EMF converter ... Add support for the MCP9600 thermocouple electromotive force converter. The sensor has integrated cold junction compensation and a typical accuracy of 0.5 degrees Celsius. The driver supports a resolution of 0.0625 degrees Celsius. Datasheet: https://ww1.microchip.com/downloads/en/DeviceDoc/MCP960X-Data-Sheet-20005426.pdf Signed-off-by: Andrew Hepp <andrew.hepp@ahepp.dev> Link: https://lore.kernel.org/r/20231025233153.5454-2-andrew.hepp@ahepp.dev Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>	2023-11-16 19:10:28 +00:00