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| author | Eduardo Valentin <edubezval@gmail.com> | 2015-05-11 19:34:23 -0700 |
|---|---|---|
| committer | Eduardo Valentin <edubezval@gmail.com> | 2015-05-11 19:46:52 -0700 |
| commit | 9d0be7f4810257a9b0fc78fff641f14409f14ab3 (patch) | |
| tree | c3cab3c900e0841e9beeba9756800c175748b8be /drivers/thermal/thermal_core.c | |
| parent | ea54cac9065112724f3432e0574ba3e346fd695d (diff) | |
| download | linux-9d0be7f4810257a9b0fc78fff641f14409f14ab3.tar.gz | |
thermal: support slope and offset coefficients
It is common to have a linear extrapolation from the current sensor readings and the actual temperature value. This is specially the case when the sensor is in use to extrapolate hotspots. This patch adds slope and offset constants for single sensor linear extrapolation equation. Because the same sensor can be use in different locations, from board to board, these constants are added as part of thermal_zone_params. The constants are available through sysfs. It is up to the device driver to determine the usage of these values. Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Diffstat (limited to 'drivers/thermal/thermal_core.c')
| -rw-r--r-- | drivers/thermal/thermal_core.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 962de1847cc0..04659bfb888b 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -944,6 +944,8 @@ create_s32_tzp_attr(k_pu); create_s32_tzp_attr(k_i); create_s32_tzp_attr(k_d); create_s32_tzp_attr(integral_cutoff); +create_s32_tzp_attr(slope); +create_s32_tzp_attr(offset); #undef create_s32_tzp_attr static struct device_attribute *dev_tzp_attrs[] = { @@ -953,6 +955,8 @@ static struct device_attribute *dev_tzp_attrs[] = { &dev_attr_k_i, &dev_attr_k_d, &dev_attr_integral_cutoff, + &dev_attr_slope, + &dev_attr_offset, }; static int create_tzp_attrs(struct device *dev) |