| Message ID | 20210923212311.2877048-1-bjorn.andersson@linaro.org |
|---|---|
| Headers | show |
| Series | arm64: dts: qcom: sdm845: Add thermal zones for PM8998 ADC | expand |
On Thu, Sep 23, 2021 at 02:23:11PM -0700, Bjorn Andersson wrote: > Downstream defines four ADC channels related to thermal sensors external > to the PM8998 and two channels for internal voltage measurements. > > Add these to the upstream SDM845 MTP, describe the thermal monitor > channels and add thermal_zones for these. > > Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> > --- > > In addition to the iio channels exposed by v1, Daniel wanted thermal_zones... > > Changes since v1: > - Enable the pm8998_adc_tm and describe the ADC channels > - Add thermal-zones for the new channels > > arch/arm64/boot/dts/qcom/sdm845-mtp.dts | 128 ++++++++++++++++++++++++ > 1 file changed, 128 insertions(+) > > diff --git a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts > index 52dd7a858231..e3b40daef801 100644 > --- a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts > +++ b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts > @@ -10,6 +10,8 @@ > #include <dt-bindings/gpio/gpio.h> > #include <dt-bindings/regulator/qcom,rpmh-regulator.h> > #include "sdm845.dtsi" > +#include "pm8998.dtsi" > +#include "pmi8998.dtsi" > > / { > model = "Qualcomm Technologies, Inc. SDM845 MTP"; > @@ -46,6 +48,68 @@ vreg_s4a_1p8: pm8998-smps4 { > > vin-supply = <&vph_pwr>; > }; > + > + thermal-zones { > + xo_thermal: xo-thermal { > + polling-delay-passive = <0>; > + polling-delay = <0>; > + > + thermal-sensors = <&pm8998_adc_tm 1>; > + > + trips { > + trip-point { > + temperature = <125000>; > + hysteresis = <10000>; > + type = "passive"; > + }; > + }; > + }; > + > + msm_thermal: msm-thermal { > + polling-delay-passive = <0>; > + polling-delay = <0>; > + > + thermal-sensors = <&pm8998_adc_tm 2>; > + > + trips { > + trip-point { > + temperature = <125000>; > + hysteresis = <10000>; > + type = "passive"; > + }; > + }; > + }; > + > + pa_thermal: pa-thermal { > + polling-delay-passive = <0>; > + polling-delay = <0>; > + > + thermal-sensors = <&pm8998_adc_tm 3>; > + > + trips { > + trip-point { > + temperature = <125000>; > + hysteresis = <10000>; > + type = "passive"; > + }; > + }; > + }; > + > + quiet_thermal: quiet-thermal { > + polling-delay-passive = <0>; > + polling-delay = <0>; > + > + thermal-sensors = <&pm8998_adc_tm 4>; > + > + trips { > + trip-point { > + temperature = <125000>; > + hysteresis = <10000>; > + type = "passive"; > + }; > + }; > + }; > + }; > }; > > &adsp_pas { > @@ -469,6 +533,70 @@ &mss_pil { > firmware-name = "qcom/sdm845/mba.mbn", "qcom/sdm845/modem.mbn"; > }; > > +&pm8998_adc { > + adc-chan@4c { > + reg = <ADC5_XO_THERM_100K_PU>; > + label = "xo_therm"; > + }; > + > + adc-chan@4d { > + reg = <ADC5_AMUX_THM1_100K_PU>; > + label = "msm_therm"; > + }; > + > + adc-chan@4f { > + reg = <ADC5_AMUX_THM3_100K_PU>; > + label = "pa_therm1"; > + }; > + > + adc-chan@51 { > + reg = <ADC5_AMUX_THM5_100K_PU>; > + label = "quiet_therm"; > + }; > + > + adc-chan@83 { > + reg = <ADC5_VPH_PWR>; > + label = "vph_pwr"; > + }; > + > + adc-chan@85 { > + reg = <ADC5_VCOIN>; > + label = "vcoin"; > + }; > +}; > + > +&pm8998_adc_tm { > + status = "okay"; > + > + xo-thermistor@1 { > + reg = <1>; > + io-channels = <&pm8998_adc ADC5_XO_THERM_100K_PU>; > + qcom,ratiometric; > + qcom,hw-settle-time-us = <200>; > + }; > + > + msm-thermistor@2 { > + reg = <2>; > + io-channels = <&pm8998_adc ADC5_AMUX_THM1_100K_PU>; > + qcom,ratiometric; > + qcom,hw-settle-time-us = <200>; > + }; > + > + pa-thermistor@3 { > + reg = <3>; > + io-channels = <&pm8998_adc ADC5_AMUX_THM3_100K_PU>; > + qcom,ratiometric; > + qcom,hw-settle-time-us = <200>; > + }; > + > + quiet-thermistor@4 { > + reg = <4>; > + io-channels = <&pm8998_adc ADC5_AMUX_THM5_100K_PU>; > + qcom,ratiometric; > + qcom,hw-settle-time-us = <200>; > + }; > +}; > + The example in the 'qcom,spmi-adc-tm5' binding specifies 'qcom,ratiometric' and 'qcom,hw-settle-time-us' for both the ADC and the thermal monitor, so do several board files (e.g. sm8250-mtp.dts and qrb5165-rb5.dts). This apparent redundancy bothered me earlier, it's not really clear to me whether it's needed/recommended or not. Do you happen to have any insights on this?
Hi Bjorn, On 9/24/21 12:23 AM, Bjorn Andersson wrote: > The variant of the ADC Thermal Monitor block found in e.g. PM8998 is > "HC", add support for this variant to the ADC TM5 driver in order to > support using VADC channels as thermal_zones on SDM845 et al. > > Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> > --- > > Changes since v1: > - New patch > > drivers/thermal/qcom/qcom-spmi-adc-tm5.c | 43 +++++++++++++++++++++++- > 1 file changed, 42 insertions(+), 1 deletion(-) > > diff --git a/drivers/thermal/qcom/qcom-spmi-adc-tm5.c b/drivers/thermal/qcom/qcom-spmi-adc-tm5.c > index 8494cc04aa21..7fe5cf28ae15 100644 > --- a/drivers/thermal/qcom/qcom-spmi-adc-tm5.c > +++ b/drivers/thermal/qcom/qcom-spmi-adc-tm5.c > @@ -82,6 +82,7 @@ struct adc_tm5_data { > const u32 full_scale_code_volt; > unsigned int *decimation; > unsigned int *hw_settle; > + bool is_hc; > }; > > enum adc_tm5_cal_method { > @@ -146,6 +147,14 @@ static const struct adc_tm5_data adc_tm5_data_pmic = { > 64000, 128000 }, > }; > > +static const struct adc_tm5_data adc_tm_hc_data_pmic = { > + .full_scale_code_volt = 0x70e4, > + .decimation = (unsigned int []) { 256, 512, 1024 }, > + .hw_settle = (unsigned int []) { 0, 100, 200, 300, 400, 500, 600, 700, > + 1000, 2000, 4000, 6000, 8000, 10000 }, > + .is_hc = true, > +}; > + > static int adc_tm5_read(struct adc_tm5_chip *adc_tm, u16 offset, u8 *data, int len) > { > return regmap_bulk_read(adc_tm->regmap, adc_tm->base + offset, data, len); > @@ -375,6 +384,31 @@ static int adc_tm5_register_tzd(struct adc_tm5_chip *adc_tm) > return 0; > } > > +static int adc_tm_hc_init(struct adc_tm5_chip *chip) > +{ > + unsigned int i; > + u8 buf[2]; > + int ret; > + > + for (i = 0; i < chip->nchannels; i++) { > + if (chip->channels[i].channel >= ADC_TM5_NUM_CHANNELS) { > + dev_err(chip->dev, "Invalid channel %d\n", chip->channels[i].channel); > + return -EINVAL; > + } > + } > + > + buf[0] = chip->decimation; > + buf[1] = chip->avg_samples | ADC_TM5_FAST_AVG_EN; > + > + ret = adc_tm5_write(chip, ADC_TM5_ADC_DIG_PARAM, buf, sizeof(buf)); > + if (ret) { > + dev_err(chip->dev, "block write failed: %d\n", ret); > + return ret; > + } if (ret) dev_err(chip->dev, "block write failed: %d\n", ret); above should be sufficient here and similarly in adc_tm5_init(). > + > + return ret; > +} > + > static int adc_tm5_init(struct adc_tm5_chip *chip) > { > u8 buf[4], channels_available; > @@ -591,7 +625,10 @@ static int adc_tm5_probe(struct platform_device *pdev) > return ret; > } > > - ret = adc_tm5_init(adc_tm); > + if (adc_tm->data->is_hc) > + ret = adc_tm_hc_init(adc_tm); > + else > + ret = adc_tm5_init(adc_tm); > if (ret) { > dev_err(dev, "adc-tm init failed\n"); > return ret; > @@ -612,6 +649,10 @@ static const struct of_device_id adc_tm5_match_table[] = { > .compatible = "qcom,spmi-adc-tm5", > .data = &adc_tm5_data_pmic, > }, > + { > + .compatible = "qcom,spmi-adc-tm-hc", > + .data = &adc_tm_hc_data_pmic, > + }, > { } > }; > MODULE_DEVICE_TABLE(of, adc_tm5_match_table); > -- Best wishes, Vladimir
On Wed 29 Sep 11:40 PDT 2021, Matthias Kaehlcke wrote: > On Thu, Sep 23, 2021 at 02:23:11PM -0700, Bjorn Andersson wrote: > > Downstream defines four ADC channels related to thermal sensors external > > to the PM8998 and two channels for internal voltage measurements. > > > > Add these to the upstream SDM845 MTP, describe the thermal monitor > > channels and add thermal_zones for these. > > > > Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> > > --- > > > > In addition to the iio channels exposed by v1, Daniel wanted thermal_zones... > > > > Changes since v1: > > - Enable the pm8998_adc_tm and describe the ADC channels > > - Add thermal-zones for the new channels > > > > arch/arm64/boot/dts/qcom/sdm845-mtp.dts | 128 ++++++++++++++++++++++++ > > 1 file changed, 128 insertions(+) > > > > diff --git a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts [..] > > +&pm8998_adc { > > + adc-chan@4c { > > + reg = <ADC5_XO_THERM_100K_PU>; > > + label = "xo_therm"; > > + }; > > + > > + adc-chan@4d { > > + reg = <ADC5_AMUX_THM1_100K_PU>; > > + label = "msm_therm"; > > + }; > > + > > + adc-chan@4f { > > + reg = <ADC5_AMUX_THM3_100K_PU>; > > + label = "pa_therm1"; > > + }; > > + > > + adc-chan@51 { > > + reg = <ADC5_AMUX_THM5_100K_PU>; > > + label = "quiet_therm"; > > + }; > > + > > + adc-chan@83 { > > + reg = <ADC5_VPH_PWR>; > > + label = "vph_pwr"; > > + }; > > + > > + adc-chan@85 { > > + reg = <ADC5_VCOIN>; > > + label = "vcoin"; > > + }; > > +}; > > + > > +&pm8998_adc_tm { > > + status = "okay"; > > + > > + xo-thermistor@1 { > > + reg = <1>; > > + io-channels = <&pm8998_adc ADC5_XO_THERM_100K_PU>; > > + qcom,ratiometric; > > + qcom,hw-settle-time-us = <200>; > > + }; > > + > > + msm-thermistor@2 { > > + reg = <2>; > > + io-channels = <&pm8998_adc ADC5_AMUX_THM1_100K_PU>; > > + qcom,ratiometric; > > + qcom,hw-settle-time-us = <200>; > > + }; > > + > > + pa-thermistor@3 { > > + reg = <3>; > > + io-channels = <&pm8998_adc ADC5_AMUX_THM3_100K_PU>; > > + qcom,ratiometric; > > + qcom,hw-settle-time-us = <200>; > > + }; > > + > > + quiet-thermistor@4 { > > + reg = <4>; > > + io-channels = <&pm8998_adc ADC5_AMUX_THM5_100K_PU>; > > + qcom,ratiometric; > > + qcom,hw-settle-time-us = <200>; > > + }; > > +}; > > + > > The example in the 'qcom,spmi-adc-tm5' binding specifies 'qcom,ratiometric' > and 'qcom,hw-settle-time-us' for both the ADC and the thermal monitor, so do > several board files (e.g. sm8250-mtp.dts and qrb5165-rb5.dts). This apparent > redundancy bothered me earlier, it's not really clear to me whether it's > needed/recommended or not. Do you happen to have any insights on this? Hmm, you're right and I missed this in defining my channels. I've not looked at this detail, just got reasonable readings from my thermal zones and was happy about that. Dmitry, do you have any further insights why these properties are supposed to be duplicated between the adc channel and the thermal zones? Thanks, Bjorn
On Mon, 4 Oct 2021 at 23:13, Bjorn Andersson <bjorn.andersson@linaro.org> wrote: > > On Wed 29 Sep 11:40 PDT 2021, Matthias Kaehlcke wrote: > > > On Thu, Sep 23, 2021 at 02:23:11PM -0700, Bjorn Andersson wrote: > > > Downstream defines four ADC channels related to thermal sensors external > > > to the PM8998 and two channels for internal voltage measurements. > > > > > > Add these to the upstream SDM845 MTP, describe the thermal monitor > > > channels and add thermal_zones for these. > > > > > > Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> > > > --- > > > > > > In addition to the iio channels exposed by v1, Daniel wanted thermal_zones... > > > > > > Changes since v1: > > > - Enable the pm8998_adc_tm and describe the ADC channels > > > - Add thermal-zones for the new channels > > > > > > arch/arm64/boot/dts/qcom/sdm845-mtp.dts | 128 ++++++++++++++++++++++++ > > > 1 file changed, 128 insertions(+) > > > > > > diff --git a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts > [..] > > > +&pm8998_adc { > > > + adc-chan@4c { > > > + reg = <ADC5_XO_THERM_100K_PU>; > > > + label = "xo_therm"; > > > + }; > > > + > > > + adc-chan@4d { > > > + reg = <ADC5_AMUX_THM1_100K_PU>; > > > + label = "msm_therm"; > > > + }; > > > + > > > + adc-chan@4f { > > > + reg = <ADC5_AMUX_THM3_100K_PU>; > > > + label = "pa_therm1"; > > > + }; > > > + > > > + adc-chan@51 { > > > + reg = <ADC5_AMUX_THM5_100K_PU>; > > > + label = "quiet_therm"; > > > + }; > > > + > > > + adc-chan@83 { > > > + reg = <ADC5_VPH_PWR>; > > > + label = "vph_pwr"; > > > + }; > > > + > > > + adc-chan@85 { > > > + reg = <ADC5_VCOIN>; > > > + label = "vcoin"; > > > + }; > > > +}; > > > + > > > +&pm8998_adc_tm { > > > + status = "okay"; > > > + > > > + xo-thermistor@1 { > > > + reg = <1>; > > > + io-channels = <&pm8998_adc ADC5_XO_THERM_100K_PU>; > > > + qcom,ratiometric; > > > + qcom,hw-settle-time-us = <200>; > > > + }; > > > + > > > + msm-thermistor@2 { > > > + reg = <2>; > > > + io-channels = <&pm8998_adc ADC5_AMUX_THM1_100K_PU>; > > > + qcom,ratiometric; > > > + qcom,hw-settle-time-us = <200>; > > > + }; > > > + > > > + pa-thermistor@3 { > > > + reg = <3>; > > > + io-channels = <&pm8998_adc ADC5_AMUX_THM3_100K_PU>; > > > + qcom,ratiometric; > > > + qcom,hw-settle-time-us = <200>; > > > + }; > > > + > > > + quiet-thermistor@4 { > > > + reg = <4>; > > > + io-channels = <&pm8998_adc ADC5_AMUX_THM5_100K_PU>; > > > + qcom,ratiometric; > > > + qcom,hw-settle-time-us = <200>; > > > + }; > > > +}; > > > + > > > > The example in the 'qcom,spmi-adc-tm5' binding specifies 'qcom,ratiometric' > > and 'qcom,hw-settle-time-us' for both the ADC and the thermal monitor, so do > > several board files (e.g. sm8250-mtp.dts and qrb5165-rb5.dts). This apparent > > redundancy bothered me earlier, it's not really clear to me whether it's > > needed/recommended or not. Do you happen to have any insights on this? > > Hmm, you're right and I missed this in defining my channels. I've not > looked at this detail, just got reasonable readings from my thermal > zones and was happy about that. > > Dmitry, do you have any further insights why these properties are > supposed to be duplicated between the adc channel and the thermal zones? Because both ADC channel and thermal zone registers should be programmed accordingly. One not-so-perfect approach would be to use io-channels property to locate the adc's adc-chan node and to parse it. However this way thermal driver would have to know the exact structure of adc's device tree nodes. Another (even worse) solution would be to introduce qcom-specific API to query these properties from the IIO channel. Selecting between these two options I decided to follow the downstream path and just to duplicate these few properties.
On Mon 04 Oct 15:56 CDT 2021, Dmitry Baryshkov wrote: > On Mon, 4 Oct 2021 at 23:13, Bjorn Andersson <bjorn.andersson@linaro.org> wrote: > > > > On Wed 29 Sep 11:40 PDT 2021, Matthias Kaehlcke wrote: > > > > > On Thu, Sep 23, 2021 at 02:23:11PM -0700, Bjorn Andersson wrote: > > > > Downstream defines four ADC channels related to thermal sensors external > > > > to the PM8998 and two channels for internal voltage measurements. > > > > > > > > Add these to the upstream SDM845 MTP, describe the thermal monitor > > > > channels and add thermal_zones for these. > > > > > > > > Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> > > > > --- > > > > > > > > In addition to the iio channels exposed by v1, Daniel wanted thermal_zones... > > > > > > > > Changes since v1: > > > > - Enable the pm8998_adc_tm and describe the ADC channels > > > > - Add thermal-zones for the new channels > > > > > > > > arch/arm64/boot/dts/qcom/sdm845-mtp.dts | 128 ++++++++++++++++++++++++ > > > > 1 file changed, 128 insertions(+) > > > > > > > > diff --git a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts > > [..] > > > > +&pm8998_adc { > > > > + adc-chan@4c { > > > > + reg = <ADC5_XO_THERM_100K_PU>; > > > > + label = "xo_therm"; > > > > + }; > > > > + > > > > + adc-chan@4d { > > > > + reg = <ADC5_AMUX_THM1_100K_PU>; > > > > + label = "msm_therm"; > > > > + }; > > > > + > > > > + adc-chan@4f { > > > > + reg = <ADC5_AMUX_THM3_100K_PU>; > > > > + label = "pa_therm1"; > > > > + }; > > > > + > > > > + adc-chan@51 { > > > > + reg = <ADC5_AMUX_THM5_100K_PU>; > > > > + label = "quiet_therm"; > > > > + }; > > > > + > > > > + adc-chan@83 { > > > > + reg = <ADC5_VPH_PWR>; > > > > + label = "vph_pwr"; > > > > + }; > > > > + > > > > + adc-chan@85 { > > > > + reg = <ADC5_VCOIN>; > > > > + label = "vcoin"; > > > > + }; > > > > +}; > > > > + > > > > +&pm8998_adc_tm { > > > > + status = "okay"; > > > > + > > > > + xo-thermistor@1 { > > > > + reg = <1>; > > > > + io-channels = <&pm8998_adc ADC5_XO_THERM_100K_PU>; > > > > + qcom,ratiometric; > > > > + qcom,hw-settle-time-us = <200>; > > > > + }; > > > > + > > > > + msm-thermistor@2 { > > > > + reg = <2>; > > > > + io-channels = <&pm8998_adc ADC5_AMUX_THM1_100K_PU>; > > > > + qcom,ratiometric; > > > > + qcom,hw-settle-time-us = <200>; > > > > + }; > > > > + > > > > + pa-thermistor@3 { > > > > + reg = <3>; > > > > + io-channels = <&pm8998_adc ADC5_AMUX_THM3_100K_PU>; > > > > + qcom,ratiometric; > > > > + qcom,hw-settle-time-us = <200>; > > > > + }; > > > > + > > > > + quiet-thermistor@4 { > > > > + reg = <4>; > > > > + io-channels = <&pm8998_adc ADC5_AMUX_THM5_100K_PU>; > > > > + qcom,ratiometric; > > > > + qcom,hw-settle-time-us = <200>; > > > > + }; > > > > +}; > > > > + > > > > > > The example in the 'qcom,spmi-adc-tm5' binding specifies 'qcom,ratiometric' > > > and 'qcom,hw-settle-time-us' for both the ADC and the thermal monitor, so do > > > several board files (e.g. sm8250-mtp.dts and qrb5165-rb5.dts). This apparent > > > redundancy bothered me earlier, it's not really clear to me whether it's > > > needed/recommended or not. Do you happen to have any insights on this? > > > > Hmm, you're right and I missed this in defining my channels. I've not > > looked at this detail, just got reasonable readings from my thermal > > zones and was happy about that. > > > > Dmitry, do you have any further insights why these properties are > > supposed to be duplicated between the adc channel and the thermal zones? > > Because both ADC channel and thermal zone registers should be > programmed accordingly. > I presume our question is "why" to this particular part. The actual implementation thereof seems reasonable. Regards, Bjorn
On 10/4/21 4:56 PM, Dmitry Baryshkov wrote: > On Mon, 4 Oct 2021 at 23:13, Bjorn Andersson <bjorn.andersson@linaro.org> wrote: >> >> On Wed 29 Sep 11:40 PDT 2021, Matthias Kaehlcke wrote: >> >>> On Thu, Sep 23, 2021 at 02:23:11PM -0700, Bjorn Andersson wrote: >>>> Downstream defines four ADC channels related to thermal sensors external >>>> to the PM8998 and two channels for internal voltage measurements. >>>> >>>> Add these to the upstream SDM845 MTP, describe the thermal monitor >>>> channels and add thermal_zones for these. >>>> >>>> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> >>>> --- >>>> >>>> In addition to the iio channels exposed by v1, Daniel wanted thermal_zones... >>>> >>>> Changes since v1: >>>> - Enable the pm8998_adc_tm and describe the ADC channels >>>> - Add thermal-zones for the new channels >>>> >>>> arch/arm64/boot/dts/qcom/sdm845-mtp.dts | 128 ++++++++++++++++++++++++ >>>> 1 file changed, 128 insertions(+) >>>> >>>> diff --git a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts >> [..] >>>> +&pm8998_adc { >>>> + adc-chan@4c { >>>> + reg = <ADC5_XO_THERM_100K_PU>; >>>> + label = "xo_therm"; >>>> + }; >>>> + >>>> + adc-chan@4d { >>>> + reg = <ADC5_AMUX_THM1_100K_PU>; >>>> + label = "msm_therm"; >>>> + }; >>>> + >>>> + adc-chan@4f { >>>> + reg = <ADC5_AMUX_THM3_100K_PU>; >>>> + label = "pa_therm1"; >>>> + }; >>>> + >>>> + adc-chan@51 { >>>> + reg = <ADC5_AMUX_THM5_100K_PU>; >>>> + label = "quiet_therm"; >>>> + }; >>>> + >>>> + adc-chan@83 { >>>> + reg = <ADC5_VPH_PWR>; >>>> + label = "vph_pwr"; >>>> + }; >>>> + >>>> + adc-chan@85 { >>>> + reg = <ADC5_VCOIN>; >>>> + label = "vcoin"; >>>> + }; >>>> +}; >>>> + >>>> +&pm8998_adc_tm { >>>> + status = "okay"; >>>> + >>>> + xo-thermistor@1 { >>>> + reg = <1>; >>>> + io-channels = <&pm8998_adc ADC5_XO_THERM_100K_PU>; >>>> + qcom,ratiometric; >>>> + qcom,hw-settle-time-us = <200>; >>>> + }; >>>> + >>>> + msm-thermistor@2 { >>>> + reg = <2>; >>>> + io-channels = <&pm8998_adc ADC5_AMUX_THM1_100K_PU>; >>>> + qcom,ratiometric; >>>> + qcom,hw-settle-time-us = <200>; >>>> + }; >>>> + >>>> + pa-thermistor@3 { >>>> + reg = <3>; >>>> + io-channels = <&pm8998_adc ADC5_AMUX_THM3_100K_PU>; >>>> + qcom,ratiometric; >>>> + qcom,hw-settle-time-us = <200>; >>>> + }; >>>> + >>>> + quiet-thermistor@4 { >>>> + reg = <4>; >>>> + io-channels = <&pm8998_adc ADC5_AMUX_THM5_100K_PU>; >>>> + qcom,ratiometric; >>>> + qcom,hw-settle-time-us = <200>; >>>> + }; >>>> +}; >>>> + >>> >>> The example in the 'qcom,spmi-adc-tm5' binding specifies 'qcom,ratiometric' >>> and 'qcom,hw-settle-time-us' for both the ADC and the thermal monitor, so do >>> several board files (e.g. sm8250-mtp.dts and qrb5165-rb5.dts). This apparent >>> redundancy bothered me earlier, it's not really clear to me whether it's >>> needed/recommended or not. Do you happen to have any insights on this? >> >> Hmm, you're right and I missed this in defining my channels. I've not >> looked at this detail, just got reasonable readings from my thermal >> zones and was happy about that. >> >> Dmitry, do you have any further insights why these properties are >> supposed to be duplicated between the adc channel and the thermal zones? > > Because both ADC channel and thermal zone registers should be > programmed accordingly. > > One not-so-perfect approach would be to use io-channels property to > locate the adc's adc-chan node and to parse it. However this way > thermal driver would have to know the exact structure of adc's device > tree nodes. > Another (even worse) solution would be to introduce qcom-specific API > to query these properties from the IIO channel. > > Selecting between these two options I decided to follow the downstream > path and just to duplicate these few properties. I know I am joining late to this party, since v3 is out. But before I send my acked-by, wanted to check/state a few things. To me, the not-so-perfect approach that you mention here is actually not so bad, considering the thermal sensor driver already is aware of internals of the adc device. The duplicating of node is kind of confusing. Also did you explore using one of _channel_write apis in iio framework to move all the writes into the adc device instead of thermal sensor driver ? >
On Tue 05 Oct 13:30 PDT 2021, Thara Gopinath wrote: > > > On 10/4/21 4:56 PM, Dmitry Baryshkov wrote: > > On Mon, 4 Oct 2021 at 23:13, Bjorn Andersson <bjorn.andersson@linaro.org> wrote: > > > > > > On Wed 29 Sep 11:40 PDT 2021, Matthias Kaehlcke wrote: > > > > > > > On Thu, Sep 23, 2021 at 02:23:11PM -0700, Bjorn Andersson wrote: > > > > > Downstream defines four ADC channels related to thermal sensors external > > > > > to the PM8998 and two channels for internal voltage measurements. > > > > > > > > > > Add these to the upstream SDM845 MTP, describe the thermal monitor > > > > > channels and add thermal_zones for these. > > > > > > > > > > Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> > > > > > --- > > > > > > > > > > In addition to the iio channels exposed by v1, Daniel wanted thermal_zones... > > > > > > > > > > Changes since v1: > > > > > - Enable the pm8998_adc_tm and describe the ADC channels > > > > > - Add thermal-zones for the new channels > > > > > > > > > > arch/arm64/boot/dts/qcom/sdm845-mtp.dts | 128 ++++++++++++++++++++++++ > > > > > 1 file changed, 128 insertions(+) > > > > > > > > > > diff --git a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts > > > [..] > > > > > +&pm8998_adc { > > > > > + adc-chan@4c { > > > > > + reg = <ADC5_XO_THERM_100K_PU>; > > > > > + label = "xo_therm"; > > > > > + }; > > > > > + > > > > > + adc-chan@4d { > > > > > + reg = <ADC5_AMUX_THM1_100K_PU>; > > > > > + label = "msm_therm"; > > > > > + }; > > > > > + > > > > > + adc-chan@4f { > > > > > + reg = <ADC5_AMUX_THM3_100K_PU>; > > > > > + label = "pa_therm1"; > > > > > + }; > > > > > + > > > > > + adc-chan@51 { > > > > > + reg = <ADC5_AMUX_THM5_100K_PU>; > > > > > + label = "quiet_therm"; > > > > > + }; > > > > > + > > > > > + adc-chan@83 { > > > > > + reg = <ADC5_VPH_PWR>; > > > > > + label = "vph_pwr"; > > > > > + }; > > > > > + > > > > > + adc-chan@85 { > > > > > + reg = <ADC5_VCOIN>; > > > > > + label = "vcoin"; > > > > > + }; > > > > > +}; > > > > > + > > > > > +&pm8998_adc_tm { > > > > > + status = "okay"; > > > > > + > > > > > + xo-thermistor@1 { > > > > > + reg = <1>; > > > > > + io-channels = <&pm8998_adc ADC5_XO_THERM_100K_PU>; > > > > > + qcom,ratiometric; > > > > > + qcom,hw-settle-time-us = <200>; > > > > > + }; > > > > > + > > > > > + msm-thermistor@2 { > > > > > + reg = <2>; > > > > > + io-channels = <&pm8998_adc ADC5_AMUX_THM1_100K_PU>; > > > > > + qcom,ratiometric; > > > > > + qcom,hw-settle-time-us = <200>; > > > > > + }; > > > > > + > > > > > + pa-thermistor@3 { > > > > > + reg = <3>; > > > > > + io-channels = <&pm8998_adc ADC5_AMUX_THM3_100K_PU>; > > > > > + qcom,ratiometric; > > > > > + qcom,hw-settle-time-us = <200>; > > > > > + }; > > > > > + > > > > > + quiet-thermistor@4 { > > > > > + reg = <4>; > > > > > + io-channels = <&pm8998_adc ADC5_AMUX_THM5_100K_PU>; > > > > > + qcom,ratiometric; > > > > > + qcom,hw-settle-time-us = <200>; > > > > > + }; > > > > > +}; > > > > > + > > > > > > > > The example in the 'qcom,spmi-adc-tm5' binding specifies 'qcom,ratiometric' > > > > and 'qcom,hw-settle-time-us' for both the ADC and the thermal monitor, so do > > > > several board files (e.g. sm8250-mtp.dts and qrb5165-rb5.dts). This apparent > > > > redundancy bothered me earlier, it's not really clear to me whether it's > > > > needed/recommended or not. Do you happen to have any insights on this? > > > > > > Hmm, you're right and I missed this in defining my channels. I've not > > > looked at this detail, just got reasonable readings from my thermal > > > zones and was happy about that. > > > > > > Dmitry, do you have any further insights why these properties are > > > supposed to be duplicated between the adc channel and the thermal zones? > > > > Because both ADC channel and thermal zone registers should be > > programmed accordingly. > > > > One not-so-perfect approach would be to use io-channels property to > > locate the adc's adc-chan node and to parse it. However this way > > thermal driver would have to know the exact structure of adc's device > > tree nodes. > > Another (even worse) solution would be to introduce qcom-specific API > > to query these properties from the IIO channel. > > > > Selecting between these two options I decided to follow the downstream > > path and just to duplicate these few properties. > > I know I am joining late to this party, since v3 is out. But before I send > my acked-by, wanted to check/state a few things. > To me, the not-so-perfect approach that you mention here is actually not so > bad, considering the thermal sensor driver already is aware of internals of > the adc device. The duplicating of node is kind of confusing. > Also did you explore using one of _channel_write apis in iio framework to > move all the writes into the adc device instead of thermal sensor driver ? > To me the TM hardware block seems to just duplicate some parts of the ADC block. Without understanding why the two would need to be configured in sync, I don't think we should tie them together further. In particular, I get the same readings with or without configuring the ADC channels, does this perhaps imply that the TM configuration is used to configure the ADC during it's reads (i.e. we don't need to define the ADC channels after all), or is this just a coincidence? There are other things in the PMIC, using the ADC seemingly without you having to explicitly configure the ADC and there's definitely things pointing to the ADC being "timeshared" between various users. Regards, Bjorn
On 10/5/21 5:52 PM, Bjorn Andersson wrote: > On Tue 05 Oct 13:30 PDT 2021, Thara Gopinath wrote: > >> >> >> On 10/4/21 4:56 PM, Dmitry Baryshkov wrote: >>> On Mon, 4 Oct 2021 at 23:13, Bjorn Andersson <bjorn.andersson@linaro.org> wrote: >>>> >>>> On Wed 29 Sep 11:40 PDT 2021, Matthias Kaehlcke wrote: >>>> >>>>> On Thu, Sep 23, 2021 at 02:23:11PM -0700, Bjorn Andersson wrote: >>>>>> Downstream defines four ADC channels related to thermal sensors external >>>>>> to the PM8998 and two channels for internal voltage measurements. >>>>>> >>>>>> Add these to the upstream SDM845 MTP, describe the thermal monitor >>>>>> channels and add thermal_zones for these. >>>>>> >>>>>> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> >>>>>> --- >>>>>> >>>>>> In addition to the iio channels exposed by v1, Daniel wanted thermal_zones... >>>>>> >>>>>> Changes since v1: >>>>>> - Enable the pm8998_adc_tm and describe the ADC channels >>>>>> - Add thermal-zones for the new channels >>>>>> >>>>>> arch/arm64/boot/dts/qcom/sdm845-mtp.dts | 128 ++++++++++++++++++++++++ >>>>>> 1 file changed, 128 insertions(+) >>>>>> >>>>>> diff --git a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts >>>> [..] >>>>>> +&pm8998_adc { >>>>>> + adc-chan@4c { >>>>>> + reg = <ADC5_XO_THERM_100K_PU>; >>>>>> + label = "xo_therm"; >>>>>> + }; >>>>>> + >>>>>> + adc-chan@4d { >>>>>> + reg = <ADC5_AMUX_THM1_100K_PU>; >>>>>> + label = "msm_therm"; >>>>>> + }; >>>>>> + >>>>>> + adc-chan@4f { >>>>>> + reg = <ADC5_AMUX_THM3_100K_PU>; >>>>>> + label = "pa_therm1"; >>>>>> + }; >>>>>> + >>>>>> + adc-chan@51 { >>>>>> + reg = <ADC5_AMUX_THM5_100K_PU>; >>>>>> + label = "quiet_therm"; >>>>>> + }; >>>>>> + >>>>>> + adc-chan@83 { >>>>>> + reg = <ADC5_VPH_PWR>; >>>>>> + label = "vph_pwr"; >>>>>> + }; >>>>>> + >>>>>> + adc-chan@85 { >>>>>> + reg = <ADC5_VCOIN>; >>>>>> + label = "vcoin"; >>>>>> + }; >>>>>> +}; >>>>>> + >>>>>> +&pm8998_adc_tm { >>>>>> + status = "okay"; >>>>>> + >>>>>> + xo-thermistor@1 { >>>>>> + reg = <1>; >>>>>> + io-channels = <&pm8998_adc ADC5_XO_THERM_100K_PU>; >>>>>> + qcom,ratiometric; >>>>>> + qcom,hw-settle-time-us = <200>; >>>>>> + }; >>>>>> + >>>>>> + msm-thermistor@2 { >>>>>> + reg = <2>; >>>>>> + io-channels = <&pm8998_adc ADC5_AMUX_THM1_100K_PU>; >>>>>> + qcom,ratiometric; >>>>>> + qcom,hw-settle-time-us = <200>; >>>>>> + }; >>>>>> + >>>>>> + pa-thermistor@3 { >>>>>> + reg = <3>; >>>>>> + io-channels = <&pm8998_adc ADC5_AMUX_THM3_100K_PU>; >>>>>> + qcom,ratiometric; >>>>>> + qcom,hw-settle-time-us = <200>; >>>>>> + }; >>>>>> + >>>>>> + quiet-thermistor@4 { >>>>>> + reg = <4>; >>>>>> + io-channels = <&pm8998_adc ADC5_AMUX_THM5_100K_PU>; >>>>>> + qcom,ratiometric; >>>>>> + qcom,hw-settle-time-us = <200>; >>>>>> + }; >>>>>> +}; >>>>>> + >>>>> >>>>> The example in the 'qcom,spmi-adc-tm5' binding specifies 'qcom,ratiometric' >>>>> and 'qcom,hw-settle-time-us' for both the ADC and the thermal monitor, so do >>>>> several board files (e.g. sm8250-mtp.dts and qrb5165-rb5.dts). This apparent >>>>> redundancy bothered me earlier, it's not really clear to me whether it's >>>>> needed/recommended or not. Do you happen to have any insights on this? >>>> >>>> Hmm, you're right and I missed this in defining my channels. I've not >>>> looked at this detail, just got reasonable readings from my thermal >>>> zones and was happy about that. >>>> >>>> Dmitry, do you have any further insights why these properties are >>>> supposed to be duplicated between the adc channel and the thermal zones? >>> >>> Because both ADC channel and thermal zone registers should be >>> programmed accordingly. >>> >>> One not-so-perfect approach would be to use io-channels property to >>> locate the adc's adc-chan node and to parse it. However this way >>> thermal driver would have to know the exact structure of adc's device >>> tree nodes. >>> Another (even worse) solution would be to introduce qcom-specific API >>> to query these properties from the IIO channel. >>> >>> Selecting between these two options I decided to follow the downstream >>> path and just to duplicate these few properties. >> >> I know I am joining late to this party, since v3 is out. But before I send >> my acked-by, wanted to check/state a few things. >> To me, the not-so-perfect approach that you mention here is actually not so >> bad, considering the thermal sensor driver already is aware of internals of >> the adc device. The duplicating of node is kind of confusing. >> Also did you explore using one of _channel_write apis in iio framework to >> move all the writes into the adc device instead of thermal sensor driver ? >> > > To me the TM hardware block seems to just duplicate some parts of the > ADC block. Without understanding why the two would need to be configured > in sync, I don't think we should tie them together further. You are right. It is duplicating most of the ADC parts except for temperature read for which it calls into the adc device. And I don't see any interface from the ADC driver that can be used to do the configuration TM needs. Hence the question, have we ever explored this path ? > > In particular, I get the same readings with or without configuring the > ADC channels, does this perhaps imply that the TM configuration is used > to configure the ADC during it's reads (i.e. we don't need to define the > ADC channels after all), or is this just a coincidence? Maybe because of what we do in adc_tm5_init ? If needed, we should be able to duplicate the read in the TM as well and get rid of ADC channels , right ? I don't like this half configuration in TM and half in ADC device unless there is a reason behind this. > > There are other things in the PMIC, using the ADC seemingly without you > having to explicitly configure the ADC and there's definitely things > pointing to the ADC being "timeshared" between various users. > > Regards, > Bjorn >
On Tue 05 Oct 15:21 PDT 2021, Thara Gopinath wrote: > > > On 10/5/21 5:52 PM, Bjorn Andersson wrote: > > On Tue 05 Oct 13:30 PDT 2021, Thara Gopinath wrote: > > > > > > > > > > > On 10/4/21 4:56 PM, Dmitry Baryshkov wrote: > > > > On Mon, 4 Oct 2021 at 23:13, Bjorn Andersson <bjorn.andersson@linaro.org> wrote: > > > > > > > > > > On Wed 29 Sep 11:40 PDT 2021, Matthias Kaehlcke wrote: > > > > > > > > > > > On Thu, Sep 23, 2021 at 02:23:11PM -0700, Bjorn Andersson wrote: > > > > > > > Downstream defines four ADC channels related to thermal sensors external > > > > > > > to the PM8998 and two channels for internal voltage measurements. > > > > > > > > > > > > > > Add these to the upstream SDM845 MTP, describe the thermal monitor > > > > > > > channels and add thermal_zones for these. > > > > > > > > > > > > > > Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> > > > > > > > --- > > > > > > > > > > > > > > In addition to the iio channels exposed by v1, Daniel wanted thermal_zones... > > > > > > > > > > > > > > Changes since v1: > > > > > > > - Enable the pm8998_adc_tm and describe the ADC channels > > > > > > > - Add thermal-zones for the new channels > > > > > > > > > > > > > > arch/arm64/boot/dts/qcom/sdm845-mtp.dts | 128 ++++++++++++++++++++++++ > > > > > > > 1 file changed, 128 insertions(+) > > > > > > > > > > > > > > diff --git a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts > > > > > [..] > > > > > > > +&pm8998_adc { > > > > > > > + adc-chan@4c { > > > > > > > + reg = <ADC5_XO_THERM_100K_PU>; > > > > > > > + label = "xo_therm"; > > > > > > > + }; > > > > > > > + > > > > > > > + adc-chan@4d { > > > > > > > + reg = <ADC5_AMUX_THM1_100K_PU>; > > > > > > > + label = "msm_therm"; > > > > > > > + }; > > > > > > > + > > > > > > > + adc-chan@4f { > > > > > > > + reg = <ADC5_AMUX_THM3_100K_PU>; > > > > > > > + label = "pa_therm1"; > > > > > > > + }; > > > > > > > + > > > > > > > + adc-chan@51 { > > > > > > > + reg = <ADC5_AMUX_THM5_100K_PU>; > > > > > > > + label = "quiet_therm"; > > > > > > > + }; > > > > > > > + > > > > > > > + adc-chan@83 { > > > > > > > + reg = <ADC5_VPH_PWR>; > > > > > > > + label = "vph_pwr"; > > > > > > > + }; > > > > > > > + > > > > > > > + adc-chan@85 { > > > > > > > + reg = <ADC5_VCOIN>; > > > > > > > + label = "vcoin"; > > > > > > > + }; > > > > > > > +}; > > > > > > > + > > > > > > > +&pm8998_adc_tm { > > > > > > > + status = "okay"; > > > > > > > + > > > > > > > + xo-thermistor@1 { > > > > > > > + reg = <1>; > > > > > > > + io-channels = <&pm8998_adc ADC5_XO_THERM_100K_PU>; > > > > > > > + qcom,ratiometric; > > > > > > > + qcom,hw-settle-time-us = <200>; > > > > > > > + }; > > > > > > > + > > > > > > > + msm-thermistor@2 { > > > > > > > + reg = <2>; > > > > > > > + io-channels = <&pm8998_adc ADC5_AMUX_THM1_100K_PU>; > > > > > > > + qcom,ratiometric; > > > > > > > + qcom,hw-settle-time-us = <200>; > > > > > > > + }; > > > > > > > + > > > > > > > + pa-thermistor@3 { > > > > > > > + reg = <3>; > > > > > > > + io-channels = <&pm8998_adc ADC5_AMUX_THM3_100K_PU>; > > > > > > > + qcom,ratiometric; > > > > > > > + qcom,hw-settle-time-us = <200>; > > > > > > > + }; > > > > > > > + > > > > > > > + quiet-thermistor@4 { > > > > > > > + reg = <4>; > > > > > > > + io-channels = <&pm8998_adc ADC5_AMUX_THM5_100K_PU>; > > > > > > > + qcom,ratiometric; > > > > > > > + qcom,hw-settle-time-us = <200>; > > > > > > > + }; > > > > > > > +}; > > > > > > > + > > > > > > > > > > > > The example in the 'qcom,spmi-adc-tm5' binding specifies 'qcom,ratiometric' > > > > > > and 'qcom,hw-settle-time-us' for both the ADC and the thermal monitor, so do > > > > > > several board files (e.g. sm8250-mtp.dts and qrb5165-rb5.dts). This apparent > > > > > > redundancy bothered me earlier, it's not really clear to me whether it's > > > > > > needed/recommended or not. Do you happen to have any insights on this? > > > > > > > > > > Hmm, you're right and I missed this in defining my channels. I've not > > > > > looked at this detail, just got reasonable readings from my thermal > > > > > zones and was happy about that. > > > > > > > > > > Dmitry, do you have any further insights why these properties are > > > > > supposed to be duplicated between the adc channel and the thermal zones? > > > > > > > > Because both ADC channel and thermal zone registers should be > > > > programmed accordingly. > > > > > > > > One not-so-perfect approach would be to use io-channels property to > > > > locate the adc's adc-chan node and to parse it. However this way > > > > thermal driver would have to know the exact structure of adc's device > > > > tree nodes. > > > > Another (even worse) solution would be to introduce qcom-specific API > > > > to query these properties from the IIO channel. > > > > > > > > Selecting between these two options I decided to follow the downstream > > > > path and just to duplicate these few properties. > > > > > > I know I am joining late to this party, since v3 is out. But before I send > > > my acked-by, wanted to check/state a few things. > > > To me, the not-so-perfect approach that you mention here is actually not so > > > bad, considering the thermal sensor driver already is aware of internals of > > > the adc device. The duplicating of node is kind of confusing. > > > Also did you explore using one of _channel_write apis in iio framework to > > > move all the writes into the adc device instead of thermal sensor driver ? > > > > > > > To me the TM hardware block seems to just duplicate some parts of the > > ADC block. Without understanding why the two would need to be configured > > in sync, I don't think we should tie them together further. > > You are right. It is duplicating most of the ADC parts except for > temperature read for which it calls into the adc device. And I don't see any > interface from the ADC driver that can be used to do the configuration TM > needs. Hence the question, have we ever explored this path ? > > > > > > In particular, I get the same readings with or without configuring the > > ADC channels, does this perhaps imply that the TM configuration is used > > to configure the ADC during it's reads (i.e. we don't need to define the > > ADC channels after all), or is this just a coincidence? > > Maybe because of what we do in adc_tm5_init ? > > If needed, we should be able to duplicate the read in the TM as well and get > rid of ADC channels , right ? I don't like this half configuration in TM and > half in ADC device unless there is a reason behind this. > Looking at the registers once more makes me more convinced that the PMIC is using the ADC hardware behind the back of the ADC driver - for the purpose of detecting if we pass the trip points. And then we use the ADC driver to read the temperature, separate of that. To expose a thermal_zone with both trip points and temperature. That way it would be in our best interest to configure the TM and the ADC in the same way, so the trips and temperature readings are matching, but it really is two different interfaces to the underlying ADC hardware. Regards, Bjorn > > > > There are other things in the PMIC, using the ADC seemingly without you > > having to explicitly configure the ADC and there's definitely things > > pointing to the ADC being "timeshared" between various users. > > > > Regards, > > Bjorn > > > > -- > Warm Regards > Thara (She/Her/Hers)
On 24/09/2021 00:23, Bjorn Andersson wrote: > Add a node for the ADC Thermal Monitor found in the PM8998 PMIC. This is > used to connect thermal zones with ADC channels. > > Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> > --- > > Changes since v1: > - New patch > > arch/arm64/boot/dts/qcom/pm8998.dtsi | 10 ++++++++++ > 1 file changed, 10 insertions(+) > > diff --git a/arch/arm64/boot/dts/qcom/pm8998.dtsi b/arch/arm64/boot/dts/qcom/pm8998.dtsi > index 6f5bb6b37ec2..d09f2954b6f9 100644 > --- a/arch/arm64/boot/dts/qcom/pm8998.dtsi > +++ b/arch/arm64/boot/dts/qcom/pm8998.dtsi > @@ -84,6 +84,16 @@ adc-chan@6 { > }; > }; > > + pm8998_adc_tm: adc-tm@3400 { > + compatible = "qcom,spmi-adc-tm-hc"; > + reg = <0x3400>; > + interrupts = <0x0 0x34 0x0 IRQ_TYPE_EDGE_RISING>; > + #thermal-sensor-cells = <1>; > + #address-cells = <1>; > + #size-cells = <0>; > + status = "disabled"; > + }; > + > rtc@6000 { > compatible = "qcom,pm8941-rtc"; > reg = <0x6000>, <0x6100>; >
Describe ADC channels, related thermal monitor channels and add thermal zones for these. Bjorn Andersson (4): dt-bindings: thermal: qcom: add HC variant of adc-thermal monitor bindings thermal/drivers/qcom/spmi-adc-tm5: Add support for HC variant arm64: dts: qcom: pm8998: Add ADC Thermal Monitor node arm64: dts: qcom: sdm845: mtp: Add vadc channels and thermal zones .../bindings/thermal/qcom-spmi-adc-tm-hc.yaml | 149 ++++++++++++++++++ arch/arm64/boot/dts/qcom/pm8998.dtsi | 10 ++ arch/arm64/boot/dts/qcom/sdm845-mtp.dts | 128 +++++++++++++++ drivers/thermal/qcom/qcom-spmi-adc-tm5.c | 43 ++++- 4 files changed, 329 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/thermal/qcom-spmi-adc-tm-hc.yaml