[PATCH 3.18 163/178] thermal: armada: Update Armada 380 thermal sensor coefficients

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From: Nadav Haklai <nadavh@xxxxxxxxxxx>

[ 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@xxxxxxxxxxx>
Signed-off-by: Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> #v3.16
Signed-off-by: Eduardo Valentin <edubezval@xxxxxxxxx>
Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx>
---
 drivers/thermal/armada_thermal.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/thermal/armada_thermal.c b/drivers/thermal/armada_thermal.c
index 9d1420a..e6f1acc 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,
 };
 
-- 
2.1.0

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