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| author | Amit Kucheria <amit.kucheria@linaro.org> | 2019-03-20 16:39:57 +0300 |
|---|---|---|
| committer | Andy Gross <agross@kernel.org> | 2019-05-30 05:36:45 +0300 |
| commit | 7c2d4811d11547123bada3330fa2ad9f7ed240af (patch) | |
| tree | b7f9b0b77f65260507546276d3e28904d58f6ad0 /arch/arm64/boot/dts/qcom/pms405.dtsi | |
| parent | 14d27be1529c6ee5a4a966687b3b672c5588700d (diff) | |
| download | linux-7c2d4811d11547123bada3330fa2ad9f7ed240af.tar.xz | |
arm64: dts: qcom: pms405: calibrate the VADC correctly
Set the qcom,ratiometric property to make the VADC use the VDD reference
(1.875V) and GND for channel calibration of the temperature channels
instead of 1.25V. Allow a 200us delay between the AMUX configuration and
ADC starting conversion using qcom,hw-settle-time as described in
documentation.
Fixes: 041b9a7b9fdb ("arm64: dts: pms405: Export PMIC temperature to thermal framework")
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <agross@kernel.org>
Diffstat (limited to 'arch/arm64/boot/dts/qcom/pms405.dtsi')
| -rw-r--r-- | arch/arm64/boot/dts/qcom/pms405.dtsi | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/qcom/pms405.dtsi b/arch/arm64/boot/dts/qcom/pms405.dtsi index e8e186bc1ea7..a3d5db071774 100644 --- a/arch/arm64/boot/dts/qcom/pms405.dtsi +++ b/arch/arm64/boot/dts/qcom/pms405.dtsi @@ -110,16 +110,22 @@ xo_therm_100k_pu { reg = <ADC5_XO_THERM_100K_PU>; + qcom,ratiometric; + qcom,hw-settle-time = <200>; qcom,pre-scaling = <1 1>; }; amux_thm1_100k_pu { reg = <ADC5_AMUX_THM1_100K_PU>; + qcom,ratiometric; + qcom,hw-settle-time = <200>; qcom,pre-scaling = <1 1>; }; amux_thm3_100k_pu { reg = <ADC5_AMUX_THM3_100K_PU>; + qcom,ratiometric; + qcom,hw-settle-time = <200>; qcom,pre-scaling = <1 1>; }; }; |