Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1347825

Re: [PATCH] thermal: tegra_soctherm: fix sign bit of temperature

From Wei Ni <wni@nvidia.com>
Newsgroups linux.kernel
Subject Re: [PATCH] thermal: tegra_soctherm: fix sign bit of temperature
Date 2016-03-02 08:50 +0100
Message-ID <r89HI-4v3-3@gated-at.bofh.it> (permalink)
References <r7sMr-1iX-33@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


Hi, Rui & Thierry & Matt
Could you please take a look on this patch.
It's a bug on the temperature's sign bit, it can't show the negative
temperature, although it will not cause problems for now.

Thanks.
Wei.

On 2016年02月29日 17:51, Wei Ni wrote:
> The sign bit of temperature readback is bit 0, not bit 1.
> Change to BIT(0) to fix it.
> 
> Signed-off-by: Wei Ni <wni@nvidia.com>
> ---
>  drivers/thermal/tegra_soctherm.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/thermal/tegra_soctherm.c b/drivers/thermal/tegra_soctherm.c
> index 74ea5765938b..136975220c92 100644
> --- a/drivers/thermal/tegra_soctherm.c
> +++ b/drivers/thermal/tegra_soctherm.c
> @@ -57,7 +57,7 @@
>  #define READBACK_VALUE_MASK			0xff00
>  #define READBACK_VALUE_SHIFT			8
>  #define READBACK_ADD_HALF			BIT(7)
> -#define READBACK_NEGATE				BIT(1)
> +#define READBACK_NEGATE				BIT(0)
>  
>  #define FUSE_TSENSOR8_CALIB			0x180
>  #define FUSE_SPARE_REALIGNMENT_REG_0		0x1fc
> 

Back to linux.kernel | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

[PATCH] thermal: tegra_soctherm: fix sign bit of temperature Wei Ni <wni@nvidia.com> - 2016-02-29 11:00 +0100
  Re: [PATCH] thermal: tegra_soctherm: fix sign bit of temperature Wei Ni <wni@nvidia.com> - 2016-03-02 08:50 +0100
    Re: [PATCH] thermal: tegra_soctherm: fix sign bit of temperature Matt Longnecker <mlongnecker@nvidia.com> - 2016-03-03 01:10 +0100

csiph-web