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authorLinus Torvalds <torvalds@linux-foundation.org>2018-08-16 10:21:18 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-16 10:21:18 -0700
commitd01e12dd3f4227f1be5d7c5bffa7b8240787bec1 (patch)
tree30a2d1684d8cfb4f5f3be3bf991c563f1559ab1c /Documentation/devicetree/bindings/thermal
parentMerge tag 'mailbox-v4.19' of git://git.linaro.org/landing-teams/working/fujitsu/integration (diff)
parentthermal: armada: fix copy-paste error in armada_thermal_probe() (diff)
downloadlinux-dev-d01e12dd3f4227f1be5d7c5bffa7b8240787bec1.tar.xz
linux-dev-d01e12dd3f4227f1be5d7c5bffa7b8240787bec1.zip
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal
Pull thermal management updates from Eduardo Valentin: - rework tsens driver to add support for tsens-v2 (Amit Kucheria) - rework armada thermal driver to use syscon and multichannel support (Miquel Raynal) - fixes to TI SoC, IMX, Exynos, RCar, and hwmon drivers * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal: (34 commits) thermal: armada: fix copy-paste error in armada_thermal_probe() thermal: rcar_thermal: avoid NULL dereference in absence of IRQ resources thermal: samsung: Remove Exynos5440 clock handling left-overs thermal: tsens: Fix negative temperature reporting thermal: tsens: switch from of_iomap() to devm_ioremap_resource() thermal: tsens: Rename variable thermal: tsens: Add generic support for TSENS v2 IP thermal: tsens: Rename tsens-8996 to tsens-v2 for reuse thermal: tsens: Add support to split up register address space into two dt: thermal: tsens: Document the fallback DT property for v2 of TSENS IP thermal: tsens: Get rid of unused fields in structure thermal_hwmon: Pass the originating device down to hwmon_device_register_with_info thermal_hwmon: Sanitize attribute name passed to hwmon dt-bindings: thermal: armada: add reference to new bindings dt-bindings: cp110: add the thermal node in the syscon file dt-bindings: cp110: update documentation since DT de-duplication dt-bindings: ap806: add the thermal node in the syscon file dt-bindings: cp110: prepare the syscon file to list other syscons nodes dt-bindings: ap806: prepare the syscon file to list other syscons nodes dt-bindings: cp110: rename cp110 syscon file ...
Diffstat (limited to 'Documentation/devicetree/bindings/thermal')
-rw-r--r--Documentation/devicetree/bindings/thermal/armada-thermal.txt5
-rw-r--r--Documentation/devicetree/bindings/thermal/qcom-tsens.txt31
2 files changed, 30 insertions, 6 deletions
diff --git a/Documentation/devicetree/bindings/thermal/armada-thermal.txt b/Documentation/devicetree/bindings/thermal/armada-thermal.txt
index e0d013a2e66d..f3b441100890 100644
--- a/Documentation/devicetree/bindings/thermal/armada-thermal.txt
+++ b/Documentation/devicetree/bindings/thermal/armada-thermal.txt
@@ -10,6 +10,11 @@ Required properties:
* marvell,armada-ap806-thermal
* marvell,armada-cp110-thermal
+Note: these bindings are deprecated for AP806/CP110 and should instead
+follow the rules described in:
+Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
+Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt
+
- reg: Device's register space.
Two entries are expected, see the examples below. The first one points
to the status register (4B). The second one points to the control
diff --git a/Documentation/devicetree/bindings/thermal/qcom-tsens.txt b/Documentation/devicetree/bindings/thermal/qcom-tsens.txt
index 06195e8f35e2..1d9e8cf61018 100644
--- a/Documentation/devicetree/bindings/thermal/qcom-tsens.txt
+++ b/Documentation/devicetree/bindings/thermal/qcom-tsens.txt
@@ -1,18 +1,28 @@
* QCOM SoC Temperature Sensor (TSENS)
Required properties:
-- compatible :
- - "qcom,msm8916-tsens" : For 8916 Family of SoCs
- - "qcom,msm8974-tsens" : For 8974 Family of SoCs
- - "qcom,msm8996-tsens" : For 8996 Family of SoCs
+- compatible:
+ Must be one of the following:
+ - "qcom,msm8916-tsens" (MSM8916)
+ - "qcom,msm8974-tsens" (MSM8974)
+ - "qcom,msm8996-tsens" (MSM8996)
+ - "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.
+
+- 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.
-- reg: Address range of the thermal registers
- #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:
+Example 1 (legacy support before a fallback tsens-v2 property was introduced):
tsens: thermal-sensor@900000 {
compatible = "qcom,msm8916-tsens";
reg = <0x4a8000 0x2000>;
@@ -20,3 +30,12 @@ tsens: thermal-sensor@900000 {
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>;
+ };