[PATCH] thermal: armada: Update Armada 380 thermal sensor coefficients

Gregory CLEMENT gregory.clement at free-electrons.com
Mon Apr 27 00:40:54 PDT 2015


Hi Zhang, Eduardo,

On 15/04/2015 19:08, Gregory CLEMENT wrote:
> From: Nadav Haklai <nadavh at marvell.com>
> 
> 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>
> Cc: <stable at vger.kernel.org> #v3.16

Any chance that this fix was merged in 4.1-rc ?

Thanks,

Gregory


> ---
>  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 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,
>  };
>  
> 


-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com



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