diff mbox series

arm64: dts: qcom: sc8280xp: Add label property to vadc channel nodes

Message ID 20230211052415.14581-1-manivannan.sadhasivam@linaro.org
State Accepted
Commit 8013295662f55696e5953ef14c31ba03721adf8f
Headers show
Series arm64: dts: qcom: sc8280xp: Add label property to vadc channel nodes | expand

Commit Message

Manivannan Sadhasivam Feb. 11, 2023, 5:24 a.m. UTC 
For uniquely identifying the vadc channels, label property has to be used.
The initial commit adding vadc support assumed that the driver will use the
unit address along with the node name to identify the channels. But this
assumption is now broken by,
commit 701c875aded8 ("iio: adc: qcom-spmi-adc5: Fix the channel name") that
stripped unit address from channel names. This results in probe failure of
the vadc driver:

[    8.380370] iio iio:device0: tried to double register : in_temp_pmic-die-temp_input
[    8.380383] qcom-spmi-adc5 c440000.spmi:pmic@0:adc@3100: Failed to register sysfs interfaces
[    8.380386] qcom-spmi-adc5: probe of c440000.spmi:pmic@0:adc@3100 failed with error -16

Hence, let's get rid of the assumption about drivers and rely on label
property to uniquely identify the channels.

The labels are derived from the schematics for each PMIC. For internal adc
channels such as die and xo, the PMIC names are used as a prefix.

Fixes: 7c0151347401 ("arm64: dts: qcom: sc8280xp-x13s: Add PM8280_{1/2} ADC_TM5 channels")
Fixes: 9d41cd17394a ("arm64: dts: qcom: sc8280xp-x13s: Add PMR735A VADC channel")
Fixes: 3375151a7185 ("arm64: dts: qcom: sc8280xp-x13s: Add PM8280_{1/2} VADC channels")
Fixes: 9a6b3042c533 ("arm64: dts: qcom: sc8280xp-x13s: Add PMK8280 VADC channels")
Reported-by: Steev Klimaszewski <steev@kali.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 .../boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts | 13 +++++++++++++
 1 file changed, 13 insertions(+)

Comments

Bjorn Andersson March 7, 2023, 4:20 a.m. UTC | #1 
On Sat, 11 Feb 2023 10:54:15 +0530, Manivannan Sadhasivam wrote:
> For uniquely identifying the vadc channels, label property has to be used.
> The initial commit adding vadc support assumed that the driver will use the
> unit address along with the node name to identify the channels. But this
> assumption is now broken by,
> commit 701c875aded8 ("iio: adc: qcom-spmi-adc5: Fix the channel name") that
> stripped unit address from channel names. This results in probe failure of
> the vadc driver:
> 
> [...]

Applied, thanks!

[1/1] arm64: dts: qcom: sc8280xp: Add label property to vadc channel nodes
      commit: 8013295662f55696e5953ef14c31ba03721adf8f

Best regards,
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
index 654b6b310bc9..0fc0cffbeed8 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
+++ b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
@@ -636,75 +636,88 @@  &pmk8280_vadc {
 	pmic-die-temp@3 {
 		reg = <PMK8350_ADC7_DIE_TEMP>;
 		qcom,pre-scaling = <1 1>;
+		label = "pmk8350_die_temp";
 	};
 
 	xo-therm@44 {
 		reg = <PMK8350_ADC7_AMUX_THM1_100K_PU>;
 		qcom,hw-settle-time = <200>;
 		qcom,ratiometric;
+		label = "pmk8350_xo_therm";
 	};
 
 	pmic-die-temp@103 {
 		reg = <PM8350_ADC7_DIE_TEMP(1)>;
 		qcom,pre-scaling = <1 1>;
+		label = "pmc8280_1_die_temp";
 	};
 
 	sys-therm@144 {
 		reg = <PM8350_ADC7_AMUX_THM1_100K_PU(1)>;
 		qcom,hw-settle-time = <200>;
 		qcom,ratiometric;
+		label = "sys_therm1";
 	};
 
 	sys-therm@145 {
 		reg = <PM8350_ADC7_AMUX_THM2_100K_PU(1)>;
 		qcom,hw-settle-time = <200>;
 		qcom,ratiometric;
+		label = "sys_therm2";
 	};
 
 	sys-therm@146 {
 		reg = <PM8350_ADC7_AMUX_THM3_100K_PU(1)>;
 		qcom,hw-settle-time = <200>;
 		qcom,ratiometric;
+		label = "sys_therm3";
 	};
 
 	sys-therm@147 {
 		reg = <PM8350_ADC7_AMUX_THM4_100K_PU(1)>;
 		qcom,hw-settle-time = <200>;
 		qcom,ratiometric;
+		label = "sys_therm4";
 	};
 
 	pmic-die-temp@303 {
 		reg = <PM8350_ADC7_DIE_TEMP(3)>;
 		qcom,pre-scaling = <1 1>;
+		label = "pmc8280_2_die_temp";
 	};
 
 	sys-therm@344 {
 		reg = <PM8350_ADC7_AMUX_THM1_100K_PU(3)>;
 		qcom,hw-settle-time = <200>;
 		qcom,ratiometric;
+		label = "sys_therm5";
 	};
 
 	sys-therm@345 {
 		reg = <PM8350_ADC7_AMUX_THM2_100K_PU(3)>;
 		qcom,hw-settle-time = <200>;
 		qcom,ratiometric;
+		label = "sys_therm6";
 	};
 
 	sys-therm@346 {
 		reg = <PM8350_ADC7_AMUX_THM3_100K_PU(3)>;
 		qcom,hw-settle-time = <200>;
 		qcom,ratiometric;
+		label = "sys_therm7";
 	};
 
 	sys-therm@347 {
 		reg = <PM8350_ADC7_AMUX_THM4_100K_PU(3)>;
 		qcom,hw-settle-time = <200>;
 		qcom,ratiometric;
+		label = "sys_therm8";
 	};
 
 	pmic-die-temp@403 {
 		reg = <PMR735A_ADC7_DIE_TEMP>;
 		qcom,pre-scaling = <1 1>;
+		label = "pmr735a_die_temp";
 	};
 };