On Sun, Mar 12, 2017 at 10:11:01PM +0000, Stefan Wahren wrote:
> Use the new function of_property_read_s32_array() to prepare
> of-thermal for negative coefficients. These are used by
> the upcoming bcm2835_thermal driver.
>
> Signed-off-by: Stefan Wahren <stefan.wahren@xxxxxxxx>
> ---
> drivers/thermal/of-thermal.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
> index d04ec3b..491d58a 100644
> --- a/drivers/thermal/of-thermal.c
> +++ b/drivers/thermal/of-thermal.c
> @@ -821,7 +821,8 @@ __init *thermal_of_build_thermal_zone(struct device_node *np)
> struct device_node *child = NULL, *gchild;
> struct __thermal_zone *tz;
> int ret, i;
> - u32 prop, coef[2];
> + u32 prop;
> + s32 coef[2];
>
> if (!np) {
> pr_err("no thermal zone np\n");
> @@ -851,7 +852,7 @@ __init *thermal_of_build_thermal_zone(struct device_node *np)
> * one sensor per thermal zone. Thus, we are considering
> * only the first two values as slope and offset.
> */
> - ret = of_property_read_u32_array(np, "coefficients", coef, 2);
> + ret = of_property_read_s32_array(np, "coefficients", coef, 2);
For the scope of the proposed change I see not problem with this patch.
However, this needs to go in after the of core change gets accepted.
Alternatively, I could take the full series if you get an Ack from OF
maintainers.
> if (ret == 0) {
> tz->slope = coef[0];
> tz->offset = coef[1];
> --
> 1.7.9.5
>
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