[PATCH v4 6/6] arm64: dts: sdm845: Add tsens nodes
From: mka@chromium.org (Matthias Kaehlcke)
Date: 2018-07-03 21:48:30
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linux-arm-msm, linux-devicetree, lkml
Hi, On Mon, Jul 02, 2018 at 06:14:09PM +0530, Amit Kucheria wrote:
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SDM845 has two tsens blocks, one with 13 sensors and the other with 8 sensors. Signed-off-by: Amit Kucheria <redacted> --- 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..edf8505 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 at c222000 { + compatible = "qcom,tsens-v2.4.0", "qcom,tsens-v2"; + reg = <0xc263000 0x1ff>, /* TM */ + <0xc222000 0x1ff>; /* SROT */ + #qcom,sensors = <13>; + #thermal-sensor-cells = <1>; + }; + + tsens1: tsens at c223000 { + compatible = "qcom,tsens-v2.4.0", "qcom,tsens-v2"; + reg = <0xc265000 0x1ff>, /* TM */ + <0xc223000 0x1ff>; /* SROT */ + #qcom,sensors = <8>; + #thermal-sensor-cells = <1>; + }; + spmi_bus: spmi at c440000 { compatible = "qcom,spmi-pmic-arb"; reg = <0xc440000 0x1100>,
I tested this series on an SDM845 board. Temperatures can be read from the tsens0 sensors, however for tsens1 sensors I get: cat temp cat: temp: No data available TRDY_READY_BIT set when reading TRDY_OFFSET in get_temp_tsens_v2(). Unfortunately I currently have no documentation of the registers or the thermal sensors in general and couldn't investigate further. Any idea what could be the problem? Thanks Matthias