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authorNadav Haklai <nadavh@marvell.com>2015-04-15 19:08:08 +0200
committerEduardo Valentin <edubezval@gmail.com>2015-05-09 01:00:31 -0700
commitefa86858e1d8970411a140fa1e0c4dd18a8f2a89 (patch)
tree27b4181179b887bc10926fcf927da2c8f55748d8 /drivers/thermal
parente9a90d046b9c9fe8f7c8efefe7b0e64c3c0daa8f (diff)
downloadlinux-efa86858e1d8970411a140fa1e0c4dd18a8f2a89.tar.bz2
thermal: armada: Update Armada 380 thermal sensor coefficients
Improve the Armada 380 thermal sensor accuracy by using updated formula. The updated formula is: Temperature[C degrees] = 0.4761 * tsen_vsen_out - 279.1 Signed-off-by: Nadav Haklai <nadavh@marvell.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Cc: <stable@vger.kernel.org> #v3.16 Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Diffstat (limited to 'drivers/thermal')
-rw-r--r--drivers/thermal/armada_thermal.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/thermal/armada_thermal.c b/drivers/thermal/armada_thermal.c
index c2556cf5186b..01255fd65135 100644
--- a/drivers/thermal/armada_thermal.c
+++ b/drivers/thermal/armada_thermal.c
@@ -224,9 +224,9 @@ static const struct armada_thermal_data armada380_data = {
.is_valid_shift = 10,
.temp_shift = 0,
.temp_mask = 0x3ff,
- .coef_b = 1169498786UL,
- .coef_m = 2000000UL,
- .coef_div = 4289,
+ .coef_b = 2931108200UL,
+ .coef_m = 5000000UL,
+ .coef_div = 10502,
.inverted = true,
};