UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

hwmon: (mr75203) parse temperature coefficients from device-tree 

Use thermal coefficients from the device tree if they exist.
Otherwise, use default values according to the series (5 or 6).
All coefficients can be used or only part of them.

The coefficients shall be used for fine tuning the default values since
coefficients can vary between product and product.

Signed-off-by: Eliav Farber <farbere@amazon.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220908152449.35457-20-farbere@amazon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Eliav Farber 2022-09-08 15:24:47 +00:00 committed by Guenter Roeck
parent bf1fdafdbc
commit 27937d6f8e
1 changed files with 9 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/hwmon/mr75203.c
View File

@ -709,6 +709,15 @@ static int pvt_set_temp_coeff(struct device *dev, struct pvt_device *pvt)
dev_dbg(dev, "temperature sensor series = %u\n", series);
/* Override ts-coeff-h/g/j/cal5 if they are defined. */
device_property_read_u32(dev, "moortec,ts-coeff-h", &ts_coeff->h);
device_property_read_u32(dev, "moortec,ts-coeff-g", &ts_coeff->g);
device_property_read_u32(dev, "moortec,ts-coeff-j", &ts_coeff->j);
device_property_read_u32(dev, "moortec,ts-coeff-cal5", &ts_coeff->cal5);
dev_dbg(dev, "ts-coeff: h = %u, g = %u, j = %d, cal5 = %u\n",
ts_coeff->h, ts_coeff->g, ts_coeff->j, ts_coeff->cal5);
return 0;
}