Re: [PATCH v6 7/7] arm64: dts: sdm845: Add tsens nodes

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Hi,

On Mon, Jul 9, 2018 at 4:43 AM, Amit Kucheria <amit.kucheria@xxxxxxxxxx> wrote:
> SDM845 has two tsens blocks, one with 13 sensors and the other with 8
> sensors. It uses version 2 of the TSENS IP, so use the fallback property to
> allow more common code.
>
> Signed-off-by: Amit Kucheria <amit.kucheria@xxxxxxxxxx>
> ---
>  arch/arm64/boot/dts/qcom/sdm845.dtsi | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> index cdaabeb..ba2899c 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> @@ -221,6 +221,22 @@
>                         #interrupt-cells = <2>;
>                 };
>
> +               tsens0: tsens@c263000 {

As per my comments in the bindings, nit that this should probably be
"thermal-sensor" not "tsens", AKA:

tsens0: thermal-sensor@c263000 {

> +                       compatible = "qcom,sdm845-tsens", "qcom,tsens-v2";
> +                       reg = <0xc263000 0x1ff>, /* TM */
> +                             <0xc222000 0x1ff>; /* SROT */
> +                       #qcom,sensors = <13>;

As per my comment in the bindings and the code, I'm confused about the
whole "#qcom,sensors" bit.  It's not documented and doesn't seem
hooked up in the code either.

...but if people have tested this, perhaps I'm confused.  How can
things work if num_sensors is 0???

-Doug
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