* [PATCH v2 0/2] Add Thermal support for RZ/G2L
@ 2021-11-20 19:47 Biju Das
2021-11-20 19:47 ` [PATCH v2 1/2] dt-bindings: thermal: Document Renesas RZ/G2L TSU Biju Das
0 siblings, 1 reply; 3+ messages in thread
From: Biju Das @ 2021-11-20 19:47 UTC (permalink / raw)
To: Rob Herring, Philipp Zabel
Cc: Biju Das, Rafael J. Wysocki, Daniel Lezcano, Amit Kucheria,
Zhang Rui, linux-pm, devicetree, Geert Uytterhoeven,
Chris Paterson, Biju Das, Prabhakar Mahadev Lad,
linux-renesas-soc
RZ/G2L SoC incorporates a thermal sensor unit (TSU) that measures
the temperature inside the LSI.
The thermal sensor in this unit measures temperatures in the range from
−40°C to 125°C with an accuracy of ±3°C. The TSU repeats measurement at
20-µs intervals, and automatically updates the results of measurement.
The TSU has no external pins as well as no interrupts.
This patch series aims to add TSU driver support for RZ/G2L SoC.
v1->v2:
* Removed clk patch and dts pthes from this series
* Removed devm_add_action_or_reset from probe.
Biju Das (2):
dt-bindings: thermal: Document Renesas RZ/G2L TSU
thermal/drivers: Add TSU driver for RZ/G2L
.../bindings/thermal/rzg2l-thermal.yaml | 76 ++++++
drivers/thermal/Kconfig | 9 +
drivers/thermal/Makefile | 1 +
drivers/thermal/rzg2l_thermal.c | 235 ++++++++++++++++++
4 files changed, 321 insertions(+)
create mode 100644 Documentation/devicetree/bindings/thermal/rzg2l-thermal.yaml
create mode 100644 drivers/thermal/rzg2l_thermal.c
--
2.17.1
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH v2 1/2] dt-bindings: thermal: Document Renesas RZ/G2L TSU
2021-11-20 19:47 [PATCH v2 0/2] Add Thermal support for RZ/G2L Biju Das
@ 2021-11-20 19:47 ` Biju Das
2021-11-30 2:04 ` Rob Herring
0 siblings, 1 reply; 3+ messages in thread
From: Biju Das @ 2021-11-20 19:47 UTC (permalink / raw)
To: Rob Herring
Cc: Biju Das, Rafael J. Wysocki, Daniel Lezcano, Amit Kucheria,
Zhang Rui, linux-pm, devicetree, Geert Uytterhoeven,
Chris Paterson, Biju Das, Prabhakar Mahadev Lad,
linux-renesas-soc
Document the Thermal Sensor Unit(TSU) in the RZ/G2L SoC.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
v1->v2:
* No change
---
.../bindings/thermal/rzg2l-thermal.yaml | 76 +++++++++++++++++++
1 file changed, 76 insertions(+)
create mode 100644 Documentation/devicetree/bindings/thermal/rzg2l-thermal.yaml
diff --git a/Documentation/devicetree/bindings/thermal/rzg2l-thermal.yaml b/Documentation/devicetree/bindings/thermal/rzg2l-thermal.yaml
new file mode 100644
index 000000000000..ccab9511a042
--- /dev/null
+++ b/Documentation/devicetree/bindings/thermal/rzg2l-thermal.yaml
@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/thermal/rzg2l-thermal.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas RZ/G2L Thermal Sensor Unit
+
+description:
+ On RZ/G2L SoCs, the thermal sensor unit (TSU) measures the
+ temperature(Tj) inside the LSI.
+
+maintainers:
+ - Biju Das <biju.das.jz@bp.renesas.com>
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - renesas,r9a07g044-tsu # RZ/G2{L,LC}
+ - const: renesas,rzg2l-tsu
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ "#thermal-sensor-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - power-domains
+ - resets
+ - "#thermal-sensor-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/r9a07g044-cpg.h>
+
+ tsu: thermal@10059400 {
+ compatible = "renesas,r9a07g044-tsu",
+ "renesas,rzg2l-tsu";
+ reg = <0x10059400 0x400>;
+ clocks = <&cpg CPG_MOD R9A07G044_TSU_PCLK>;
+ resets = <&cpg R9A07G044_TSU_PRESETN>;
+ power-domains = <&cpg>;
+ #thermal-sensor-cells = <1>;
+ };
+
+ thermal-zones {
+ cpu-thermal {
+ polling-delay-passive = <250>;
+ polling-delay = <1000>;
+ thermal-sensors = <&tsu 0>;
+
+ trips {
+ sensor_crit: sensor-crit {
+ temperature = <125000>;
+ hysteresis = <1000>;
+ type = "critical";
+ };
+ };
+ };
+ };
--
2.17.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v2 1/2] dt-bindings: thermal: Document Renesas RZ/G2L TSU
2021-11-20 19:47 ` [PATCH v2 1/2] dt-bindings: thermal: Document Renesas RZ/G2L TSU Biju Das
@ 2021-11-30 2:04 ` Rob Herring
0 siblings, 0 replies; 3+ messages in thread
From: Rob Herring @ 2021-11-30 2:04 UTC (permalink / raw)
To: Biju Das
Cc: Geert Uytterhoeven, Prabhakar Mahadev Lad, linux-pm, Biju Das,
Rafael J. Wysocki, Zhang Rui, Rob Herring, Daniel Lezcano,
Amit Kucheria, devicetree, linux-renesas-soc, Chris Paterson
On Sat, 20 Nov 2021 19:47:10 +0000, Biju Das wrote:
> Document the Thermal Sensor Unit(TSU) in the RZ/G2L SoC.
>
> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> ---
> v1->v2:
> * No change
> ---
> .../bindings/thermal/rzg2l-thermal.yaml | 76 +++++++++++++++++++
> 1 file changed, 76 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/thermal/rzg2l-thermal.yaml
>
Reviewed-by: Rob Herring <robh@kernel.org>
^ permalink raw reply [flat|nested] 3+ messages in thread
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