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| author | Nadav Haklai <nadavh@marvell.com> | 2015-04-15 19:08:08 +0200 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2015-06-10 13:42:37 -0400 |
| commit | 954e522029b02a94a94a22d0696409121e694473 (patch) | |
| tree | 54af0262e927ef4b8ed539ccb0f738179b8962be | |
| parent | d9b300555107c2ba6294ce0e7027a3660b798025 (diff) | |
| download | lwn-954e522029b02a94a94a22d0696409121e694473.tar.gz lwn-954e522029b02a94a94a22d0696409121e694473.zip | |
thermal: armada: Update Armada 380 thermal sensor coefficients
[ Upstream commit efa86858e1d8970411a140fa1e0c4dd18a8f2a89 ]
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>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
| -rw-r--r-- | drivers/thermal/armada_thermal.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/thermal/armada_thermal.c b/drivers/thermal/armada_thermal.c index 9d1420acb391..e6f1acc71996 100644 --- a/drivers/thermal/armada_thermal.c +++ b/drivers/thermal/armada_thermal.c @@ -240,9 +240,9 @@ 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, }; |