diff mbox series

[RFC,v2,1/5] dt-bindings: thermal: Add MBG thermal monitor support

Message ID 20241212-mbg-v2-support-v2-1-3249a4339b6e@quicinc.com
State New
Headers show
Series Add support for MBG Thermal monitoring device | expand

Commit Message

Satya Priya Kakitapalli Dec. 12, 2024, 4:11 p.m. UTC 
Add PM8775 ADC5 GEN3 Channel info and bindings for the MBG Temp
alarm peripheral found on PM8775 pmic.

Signed-off-by: Satya Priya Kakitapalli <quic_skakitap@quicinc.com>
---
 .../bindings/thermal/qcom-spmi-mbg-tm.yaml         | 86 ++++++++++++++++++++++
 .../iio/adc/qcom,spmi-adc5-gen3-pm8775.h           | 41 +++++++++++
 2 files changed, 127 insertions(+)

Comments

Konrad Dybcio Dec. 13, 2024, 3:50 p.m. UTC | #1 
On 12.12.2024 5:11 PM, Satya Priya Kakitapalli wrote:
> Add PM8775 ADC5 GEN3 Channel info and bindings for the MBG Temp
> alarm peripheral found on PM8775 pmic.
> 
> Signed-off-by: Satya Priya Kakitapalli <quic_skakitap@quicinc.com>
> ---
>  .../bindings/thermal/qcom-spmi-mbg-tm.yaml         | 86 ++++++++++++++++++++++
>  .../iio/adc/qcom,spmi-adc5-gen3-pm8775.h           | 41 +++++++++++
>  2 files changed, 127 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/thermal/qcom-spmi-mbg-tm.yaml b/Documentation/devicetree/bindings/thermal/qcom-spmi-mbg-tm.yaml
> new file mode 100644
> index 0000000000000000000000000000000000000000..909373eb758e4a8b7c2bbd0022c56ab2e823ca13
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/thermal/qcom-spmi-mbg-tm.yaml
> @@ -0,0 +1,86 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/thermal/qcom-spmi-mbg-tm.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Technologies, Inc. SPMI PMIC MBG Thermal Monitoring
> +
> +maintainers:
> +  - Satya Priya Kakitapalli <quic_skakitap@quicinc.com>
> +
> +description:
> +  Qualcomm's MBG(Master Bandgap) temperature alarm monitors the die
> +  temperature and generates an interrupt if the PMIC die temperature is
> +  over a set of programmable temperature thresholds. It allows monitoring
> +  for both hot and cold, LVL1 and LVL2 thresholds, which makes it different
> +  from the existing temp alarm peripheral. The interrupt comes over SPMI
> +  and the MBG's fault status register gives details to understand whether
> +  it is a hot/cold and LVL1/LVL2 violation.
> +
> +allOf:
> +  - $ref: thermal-sensor.yaml#
> +
> +properties:
> +  compatible:
> +    const: qcom,spmi-pm8775-mbg-tm

The bus the chip is connected over shouldn't be part of the compatible

Konrad
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/thermal/qcom-spmi-mbg-tm.yaml b/Documentation/devicetree/bindings/thermal/qcom-spmi-mbg-tm.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..909373eb758e4a8b7c2bbd0022c56ab2e823ca13
--- /dev/null
+++ b/Documentation/devicetree/bindings/thermal/qcom-spmi-mbg-tm.yaml
@@ -0,0 +1,86 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/thermal/qcom-spmi-mbg-tm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies, Inc. SPMI PMIC MBG Thermal Monitoring
+
+maintainers:
+  - Satya Priya Kakitapalli <quic_skakitap@quicinc.com>
+
+description:
+  Qualcomm's MBG(Master Bandgap) temperature alarm monitors the die
+  temperature and generates an interrupt if the PMIC die temperature is
+  over a set of programmable temperature thresholds. It allows monitoring
+  for both hot and cold, LVL1 and LVL2 thresholds, which makes it different
+  from the existing temp alarm peripheral. The interrupt comes over SPMI
+  and the MBG's fault status register gives details to understand whether
+  it is a hot/cold and LVL1/LVL2 violation.
+
+allOf:
+  - $ref: thermal-sensor.yaml#
+
+properties:
+  compatible:
+    const: qcom,spmi-pm8775-mbg-tm
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  io-channels:
+    items:
+      - description: ADC channel, which reports chip die temperature.
+
+  io-channel-names:
+    const: thermal
+
+  "#thermal-sensor-cells":
+    const: 0
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - io-channels
+  - io-channel-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/iio/adc/qcom,spmi-adc5-gen3-pm8775.h>
+
+    pmic {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        pmm8654au_0_tz: temperature-sensor@d700 {
+            compatible = "qcom,spmi-pm8775-mbg-tm";
+            reg = <0xd700>;
+            interrupts = <0x1 0xd7 0x0 IRQ_TYPE_EDGE_RISING>;
+            io-channels = <&pm8775_1_adc PM8775_ADC5_GEN3_DIE_TEMP(1)>;
+            io-channel-names = "thermal";
+            #thermal-sensor-cells = <0>;
+        };
+    };
+
+    thermal-zones {
+        pm8775-mbg0-thermal {
+            polling-delay-passive = <100>;
+            thermal-sensors = <&pmm8654au_0_tz>;
+
+            trips {
+                trip0 {
+                  temperature = <115000>;
+                  hysteresis = <5000>;
+                  type = "passive";
+                };
+            };
+        };
+    };
+...
diff --git a/include/dt-bindings/iio/adc/qcom,spmi-adc5-gen3-pm8775.h b/include/dt-bindings/iio/adc/qcom,spmi-adc5-gen3-pm8775.h
new file mode 100644
index 0000000000000000000000000000000000000000..33f5454367777b10fda248476a0abd17da86ecf6
--- /dev/null
+++ b/include/dt-bindings/iio/adc/qcom,spmi-adc5-gen3-pm8775.h
@@ -0,0 +1,41 @@ 
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * Copyright (c) 2024, Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#ifndef _DT_BINDINGS_QCOM_SPMI_VADC_PM8775_H
+#define _DT_BINDINGS_QCOM_SPMI_VADC_PM8775_H
+
+#include <dt-bindings/iio/adc/qcom,spmi-vadc.h>
+
+#define PM8775_ADC5_GEN3_REF_GND(sid)			((sid) << 8 | ADC5_GEN3_REF_GND)
+#define PM8775_ADC5_GEN3_1P25VREF(sid)			((sid) << 8 | ADC5_GEN3_1P25VREF)
+#define PM8775_ADC5_GEN3_VREF_VADC(sid)			((sid) << 8 | ADC5_GEN3_VREF_VADC)
+#define PM8775_ADC5_GEN3_DIE_TEMP(sid)			((sid) << 8 | ADC5_GEN3_DIE_TEMP)
+
+#define PM8775_ADC5_GEN3_AMUX1_THM(sid)			((sid) << 8 | ADC5_GEN3_AMUX1_THM)
+#define PM8775_ADC5_GEN3_AMUX2_THM(sid)			((sid) << 8 | ADC5_GEN3_AMUX2_THM)
+#define PM8775_ADC5_GEN3_AMUX3_THM(sid)			((sid) << 8 | ADC5_GEN3_AMUX3_THM)
+#define PM8775_ADC5_GEN3_AMUX4_THM(sid)			((sid) << 8 | ADC5_GEN3_AMUX4_THM)
+#define PM8775_ADC5_GEN3_AMUX5_THM(sid)			((sid) << 8 | ADC5_GEN3_AMUX5_THM)
+#define PM8775_ADC5_GEN3_AMUX6_THM(sid)			((sid) << 8 | ADC5_GEN3_AMUX6_THM)
+#define PM8775_ADC5_GEN3_AMUX1_GPIO9(sid)		((sid) << 8 | ADC5_GEN3_AMUX1_GPIO)
+#define PM8775_ADC5_GEN3_AMUX2_GPIO10(sid)		((sid) << 8 | ADC5_GEN3_AMUX2_GPIO)
+#define PM8775_ADC5_GEN3_AMUX3_GPIO11(sid)		((sid) << 8 | ADC5_GEN3_AMUX3_GPIO)
+#define PM8775_ADC5_GEN3_AMUX4_GPIO12(sid)		((sid) << 8 | ADC5_GEN3_AMUX4_GPIO)
+
+/* 100k pull-up2 */
+#define PM8775_ADC5_GEN3_AMUX1_THM_100K_PU(sid)		((sid) << 8 | ADC5_GEN3_AMUX1_THM_100K_PU)
+#define PM8775_ADC5_GEN3_AMUX2_THM_100K_PU(sid)		((sid) << 8 | ADC5_GEN3_AMUX2_THM_100K_PU)
+#define PM8775_ADC5_GEN3_AMUX3_THM_100K_PU(sid)		((sid) << 8 | ADC5_GEN3_AMUX3_THM_100K_PU)
+#define PM8775_ADC5_GEN3_AMUX4_THM_100K_PU(sid)		((sid) << 8 | ADC5_GEN3_AMUX4_THM_100K_PU)
+#define PM8775_ADC5_GEN3_AMUX5_THM_100K_PU(sid)		((sid) << 8 | ADC5_GEN3_AMUX5_THM_100K_PU)
+#define PM8775_ADC5_GEN3_AMUX6_THM_100K_PU(sid)		((sid) << 8 | ADC5_GEN3_AMUX6_THM_100K_PU)
+#define PM8775_ADC5_GEN3_AMUX1_GPIO9_100K_PU(sid)	((sid) << 8 | ADC5_GEN3_AMUX1_GPIO_100K_PU)
+#define PM8775_ADC5_GEN3_AMUX2_GPIO10_100K_PU(sid)	((sid) << 8 | ADC5_GEN3_AMUX2_GPIO_100K_PU)
+#define PM8775_ADC5_GEN3_AMUX3_GPIO11_100K_PU(sid)	((sid) << 8 | ADC5_GEN3_AMUX3_GPIO_100K_PU)
+#define PM8775_ADC5_GEN3_AMUX4_GPIO12_100K_PU(sid)	((sid) << 8 | ADC5_GEN3_AMUX4_GPIO_100K_PU)
+
+#define PM8775_ADC5_GEN3_VPH_PWR(sid)			((sid) << 8 | ADC5_GEN3_VPH_PWR)
+
+#endif /* _DT_BINDINGS_QCOM_SPMI_VADC_PM8775_H */