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    Subject[PATCH 3.19.y-ckt 082/146] thermal: armada: Update Armada 380 thermal sensor coefficients
    Date
    3.19.8-ckt2 -stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Nadav Haklai <nadavh@marvell.com>

    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@marvell.com>
    Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
    Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
    Signed-off-by: Kamal Mostafa <kamal@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


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