From: Amit Kucheria <amit.kucheria@linaro.org>
To: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
bjorn.andersson@linaro.org, edubezval@gmail.com,
agross@kernel.org, masneyb@onstation.org, swboyd@chromium.org,
Amit Kucheria <amit.kucheria@verdurent.com>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Mark Rutland <mark.rutland@arm.com>,
Rob Herring <robh+dt@kernel.org>, Zhang Rui <rui.zhang@intel.com>
Cc: linux-pm@vger.kernel.org, devicetree@vger.kernel.org
Subject: [PATCH 07/15] dt-bindings: thermal: tsens: Convert over to a yaml schema
Date: Wed, 16 Oct 2019 13:04:06 +0530 [thread overview]
Message-ID: <d519be4c7198f47c3661f7326d1a724b97dc4973.1571210269.git.amit.kucheria@linaro.org> (raw)
In-Reply-To: <cover.1571210269.git.amit.kucheria@linaro.org>
In-Reply-To: <cover.1571210269.git.amit.kucheria@linaro.org>
Older IP only supports the 'uplow' interrupt, but newer IP supports
'uplow' and 'critical' interrupts. Document interrupt support in the
tsens driver by converting over to a YAML schema.
Suggested-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
---
.../bindings/thermal/qcom-tsens.txt | 55 ------
.../bindings/thermal/qcom-tsens.yaml | 168 ++++++++++++++++++
MAINTAINERS | 1 +
3 files changed, 169 insertions(+), 55 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/thermal/qcom-tsens.txt
create mode 100644 Documentation/devicetree/bindings/thermal/qcom-tsens.yaml
diff --git a/Documentation/devicetree/bindings/thermal/qcom-tsens.txt b/Documentation/devicetree/bindings/thermal/qcom-tsens.txt
deleted file mode 100644
index 673cc1831ee9..000000000000
--- a/Documentation/devicetree/bindings/thermal/qcom-tsens.txt
+++ /dev/null
@@ -1,55 +0,0 @@
-* QCOM SoC Temperature Sensor (TSENS)
-
-Required properties:
-- compatible:
- Must be one of the following:
- - "qcom,msm8916-tsens" (MSM8916)
- - "qcom,msm8974-tsens" (MSM8974)
- - "qcom,msm8996-tsens" (MSM8996)
- - "qcom,qcs404-tsens", "qcom,tsens-v1" (QCS404)
- - "qcom,msm8998-tsens", "qcom,tsens-v2" (MSM8998)
- - "qcom,sdm845-tsens", "qcom,tsens-v2" (SDM845)
- The generic "qcom,tsens-v2" property must be used as a fallback for any SoC
- with version 2 of the TSENS IP. MSM8996 is the only exception because the
- generic property did not exist when support was added.
- Similarly, the generic "qcom,tsens-v1" property must be used as a fallback for
- any SoC with version 1 of the TSENS IP.
-
-- reg: Address range of the thermal registers.
- New platforms containing v2.x.y of the TSENS IP must specify the SROT and TM
- register spaces separately, with order being TM before SROT.
- See Example 2, below.
-
-- #thermal-sensor-cells : Should be 1. See ./thermal.txt for a description.
-- #qcom,sensors: Number of sensors in tsens block
-- Refer to Documentation/devicetree/bindings/nvmem/nvmem.txt to know how to specify
-nvmem cells
-
-Example 1 (legacy support before a fallback tsens-v2 property was introduced):
-tsens: thermal-sensor@900000 {
- compatible = "qcom,msm8916-tsens";
- reg = <0x4a8000 0x2000>;
- nvmem-cells = <&tsens_caldata>, <&tsens_calsel>;
- nvmem-cell-names = "caldata", "calsel";
- #thermal-sensor-cells = <1>;
- };
-
-Example 2 (for any platform containing v2 of the TSENS IP):
-tsens0: thermal-sensor@c263000 {
- compatible = "qcom,sdm845-tsens", "qcom,tsens-v2";
- reg = <0xc263000 0x1ff>, /* TM */
- <0xc222000 0x1ff>; /* SROT */
- #qcom,sensors = <13>;
- #thermal-sensor-cells = <1>;
- };
-
-Example 3 (for any platform containing v1 of the TSENS IP):
-tsens: thermal-sensor@4a9000 {
- compatible = "qcom,qcs404-tsens", "qcom,tsens-v1";
- reg = <0x004a9000 0x1000>, /* TM */
- <0x004a8000 0x1000>; /* SROT */
- nvmem-cells = <&tsens_caldata>;
- nvmem-cell-names = "calib";
- #qcom,sensors = <10>;
- #thermal-sensor-cells = <1>;
- };
diff --git a/Documentation/devicetree/bindings/thermal/qcom-tsens.yaml b/Documentation/devicetree/bindings/thermal/qcom-tsens.yaml
new file mode 100644
index 000000000000..23afc7bf5a44
--- /dev/null
+++ b/Documentation/devicetree/bindings/thermal/qcom-tsens.yaml
@@ -0,0 +1,168 @@
+# SPDX-License-Identifier: (GPL-2.0 OR MIT)
+# Copyright 2019 Linaro Ltd.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/thermal/qcom-tsens.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: QCOM SoC Temperature Sensor (TSENS)
+
+maintainers:
+ - Amit Kucheria <amit.kucheria@linaro.org>
+
+description: |
+ QCOM SoCs have TSENS IP to allow temperature measurement. There are currently
+ three distinct major versions of the IP that is supported by a single driver.
+ The IP versions are named v0.1, v1 and v2 in the driver, where v0.1 captures
+ everything before v1 when there was no versioning information.
+
+properties:
+ compatible:
+ oneOf:
+ - description: v0.1 of TSENS
+ items:
+ - enum:
+ - qcom,msm8916-tsens
+ - qcom,msm8974-tsens
+ - const: qcom,tsens-v0_1
+
+ - description: v1 of TSENS
+ items:
+ - enum:
+ - qcom,qcs404-tsens
+ - const: qcom,tsens-v1
+
+ - description: v2 of TSENS
+ items:
+ - enum:
+ - qcom,msm8996-tsens
+ - qcom,msm8998-tsens
+ - qcom,sdm845-tsens
+ - const: qcom,tsens-v2
+
+ reg:
+ maxItems: 2
+ items:
+ - description: TM registers
+ - description: SROT registers
+
+ nvmem-cells:
+ minItems: 1
+ maxItems: 2
+ description:
+ Reference to an nvmem node for the calibration data
+
+ nvmem-cells-names:
+ minItems: 1
+ maxItems: 2
+ items:
+ - enum:
+ - caldata
+ - calsel
+
+ "#qcom,sensors":
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - minimum: 1
+ - maximum: 16
+ description:
+ Number of sensors enabled on this platform
+
+ "#thermal-sensor-cells":
+ const: 1
+ description:
+ Number of cells required to uniquely identify the thermal sensors. Since
+ we have multiple sensors this is set to 1
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,msm8916-tsens
+ - qcom,msm8974-tsens
+ - qcom,qcs404-tsens
+ - qcom,tsens-v0_1
+ - qcom,tsens-v1
+ then:
+ properties:
+ interrupts:
+ items:
+ - description: Combined interrupt if upper or lower threshold crossed
+ interrupt-names:
+ items:
+ - const: uplow
+
+ else:
+ properties:
+ interrupts:
+ items:
+ - description: Combined interrupt if upper or lower threshold crossed
+ - description: Interrupt if critical threshold crossed
+ interrupt-names:
+ items:
+ - const: uplow
+ - const: critical
+
+required:
+ - compatible
+ - reg
+ - "#qcom,sensors"
+ - interrupts
+ - interrupt-names
+ - "#thermal-sensor-cells"
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ // Example 1 (legacy: for pre v1 IP):
+ tsens1: thermal-sensor@900000 {
+ compatible = "qcom,msm8916-tsens", "qcom,tsens-v0_1";
+ reg = <0x4a9000 0x1000>, /* TM */
+ <0x4a8000 0x1000>; /* SROT */
+
+ nvmem-cells = <&tsens_caldata>, <&tsens_calsel>;
+ nvmem-cell-names = "caldata", "calsel";
+
+ interrupts = <GIC_SPI 184 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "uplow";
+
+ #qcom,sensors = <5>;
+ #thermal-sensor-cells = <1>;
+ };
+
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ // Example 2 (for any platform containing v1 of the TSENS IP):
+ tsens2: thermal-sensor@4a9000 {
+ compatible = "qcom,qcs404-tsens", "qcom,tsens-v1";
+ reg = <0x004a9000 0x1000>, /* TM */
+ <0x004a8000 0x1000>; /* SROT */
+
+ nvmem-cells = <&tsens_caldata>;
+ nvmem-cell-names = "calib";
+
+ interrupts = <GIC_SPI 506 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "uplow";
+
+ #qcom,sensors = <10>;
+ #thermal-sensor-cells = <1>;
+ };
+
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ // Example 3 (for any platform containing v2 of the TSENS IP):
+ tsens3: thermal-sensor@c263000 {
+ compatible = "qcom,sdm845-tsens", "qcom,tsens-v2";
+ reg = <0xc263000 0x1ff>,
+ <0xc222000 0x1ff>;
+
+ interrupts = <GIC_SPI 506 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 508 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "uplow", "critical";
+
+ #qcom,sensors = <13>;
+ #thermal-sensor-cells = <1>;
+ };
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index a69e6db80c79..c4df814b87b0 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -13513,6 +13513,7 @@ L: linux-pm@vger.kernel.org
L: linux-arm-msm@vger.kernel.org
S: Maintained
F: drivers/thermal/qcom/
+F: Documentation/devicetree/bindings/thermal/qcom-tsens.yaml
QUALCOMM VENUS VIDEO ACCELERATOR DRIVER
M: Stanimir Varbanov <stanimir.varbanov@linaro.org>
--
2.17.1
next prev parent reply other threads:[~2019-10-16 7:34 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-16 7:33 [PATCH 00/15] thermal: qcom: tsens: Add interrupt support Amit Kucheria
2019-10-16 7:34 ` [PATCH 01/15] drivers: thermal: tsens: Get rid of id field in tsens_sensor Amit Kucheria
2019-10-16 7:34 ` [PATCH 02/15] drivers: thermal: tsens: Simplify code flow in tsens_probe Amit Kucheria
2019-10-16 7:34 ` [PATCH 03/15] drivers: thermal: tsens: Add __func__ identifier to debug statements Amit Kucheria
2019-10-16 7:34 ` [PATCH 04/15] drivers: thermal: tsens: Add debugfs support Amit Kucheria
2019-10-16 7:34 ` [PATCH 05/15] arm: dts: msm8974: thermal: Add thermal zones for each sensor Amit Kucheria
2019-10-16 7:34 ` [PATCH 06/15] arm64: dts: msm8916: thermal: Fixup HW ids for cpu sensors Amit Kucheria
2019-10-16 7:34 ` Amit Kucheria [this message]
2019-10-16 7:34 ` [PATCH 08/15] arm64: dts: sdm845: thermal: Add interrupt support Amit Kucheria
2019-10-16 7:34 ` [PATCH 09/15] arm64: dts: msm8996: " Amit Kucheria
2019-10-16 7:34 ` [PATCH 10/15] arm64: dts: msm8998: " Amit Kucheria
2019-10-16 7:34 ` [PATCH 11/15] arm64: dts: qcs404: " Amit Kucheria
2019-10-16 7:34 ` [PATCH 12/15] arm: dts: msm8974: " Amit Kucheria
2019-10-16 7:34 ` [PATCH 13/15] arm64: dts: msm8916: " Amit Kucheria
2019-10-16 7:34 ` [PATCH 14/15] drivers: thermal: tsens: Create function to return sign-extended temperature Amit Kucheria
2019-10-16 7:34 ` [PATCH 15/15] drivers: thermal: tsens: Add interrupt support Amit Kucheria
2019-10-16 7:59 ` [PATCH 00/15] thermal: qcom: " Daniel Lezcano
2019-10-16 8:35 ` Amit Kucheria
2019-10-16 8:46 ` Daniel Lezcano
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