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SubjectRe: [PATCH v7 3/7] arm64: dts: msm8996: thermal: Initialise via DT and add second controller
On Thu, Jul 12, 2018 at 02:09:04PM +0530, Amit Kucheria wrote:
> We also split up the regmap address space into two, for the TM and SROT
> registers. This was required to deal with different address offsets for the
> TM and SROT registers across different SoC families.
>
> 8996 has two TSENS IP blocks, initialise the second one too.
>
> Since tsens-common.c/init_common() currently only registers one address
> space, the order is important (TM before SROT). This is OK since the code
> doesn't really use the SROT functionality yet.
>
> Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
> Tested-by: Matthias Kaehlcke <mka@chromium.org>
> ---
> arch/arm64/boot/dts/qcom/msm8996.dtsi | 14 ++++++++++++--
> 1 file changed, 12 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi
> index 8c7f9ca..688e752 100644
> --- a/arch/arm64/boot/dts/qcom/msm8996.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi
> @@ -459,9 +459,19 @@
> status = "disabled";
> };
>
> - tsens0: thermal-sensor@4a8000 {
> + tsens0: thermal-sensor@4a9000 {
~~~~~~

I suppose the address of the TM block is used here instead of the SROT
address (which is lower) since SROT functionality is currently not
used. Would/should this change if/when the driver uses SROT?

> compatible = "qcom,msm8996-tsens";
> - reg = <0x4a8000 0x2000>;
> + reg = <0x4a9000 0x1000>, /* TM */
> + <0x4a8000 0x1000>; /* SROT */
> + #qcom,sensors = <13>;
> + #thermal-sensor-cells = <1>;
> + };
> +
> + tsens1: thermal-sensor@4ad000 {
> + compatible = "qcom,msm8996-tsens";
> + reg = <0x4ad000 0x1000>, /* TM */
> + <0x4ac000 0x1000>; /* SROT */
> + #qcom,sensors = <8>;
> #thermal-sensor-cells = <1>;
> };

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