[3.19.y-ckt stable] Patch "thermal: armada: Update Armada 380 thermal sensor coefficients" has been added to staging queue

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    thermal: armada: Update Armada 380 thermal sensor coefficients

to the linux-3.19.y-queue branch of the 3.19.y-ckt extended stable tree 
which can be found at:

    http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.19.y-queue

This patch is scheduled to be released in version 3.19.8-ckt2.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.19.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

------

>From 40a6637cdc3fc294e9605edd1b05fd135977ecea Mon Sep 17 00:00:00 2001
From: Nadav Haklai <nadavh at marvell.com>
Date: Wed, 15 Apr 2015 19:08:08 +0200
Subject: thermal: armada: Update Armada 380 thermal sensor coefficients

commit efa86858e1d8970411a140fa1e0c4dd18a8f2a89 upstream.

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 at marvell.com>
Signed-off-by: Gregory CLEMENT <gregory.clement at free-electrons.com>
Signed-off-by: Eduardo Valentin <edubezval at gmail.com>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 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 c2556cf..01255fd 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,
 };

--
1.9.1