Re: [PATCH v4 6/6] arm64: dts: sdm845: Add tsens nodes

From: Amit Kucheria
Date: Mon Jul 09 2018 - 12:05:04 EST


On Mon, Jul 9, 2018 at 9:31 PM, Matthias Kaehlcke <mka@xxxxxxxxxxxx> wrote:
> On Mon, Jul 09, 2018 at 04:56:51PM +0530, Amit Kucheria wrote:
>> On Wed, Jul 4, 2018 at 3:18 AM, Matthias Kaehlcke <mka@xxxxxxxxxxxx> wrote:
>> > Hi,
>> >
>> > On Mon, Jul 02, 2018 at 06:14:09PM +0530, Amit Kucheria wrote:
>> >> SDM845 has two tsens blocks, one with 13 sensors and the other with 8
>> >> sensors.
>> >>
>> >> 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..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@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@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@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?
>>
>> Strangely enough, I'm seeing this now after rebuilding my integration
>> branch to test some other bits.
>>
>> I've sent another version with this patch removed while I investigate
>> this. Could you check if you're able to read all 8 sensors with v5?
>
> With v6 all sensors can be read, thanks!

Great! Would it be OK to add your Tested-by tag?