diff mbox series

[v11,1/7] dt-bindings: soc: mediatek: add mtk svs dt-bindings

Message ID 20210107024356.583-2-roger.lu@mediatek.com
State New
Headers show
Series soc: mediatek: SVS: introduce MTK SVS | expand

Commit Message

Roger Lu Jan. 7, 2021, 2:43 a.m. UTC 
Document the binding for enabling mtk svs on MediaTek SoC.

Signed-off-by: Roger Lu <roger.lu@mediatek.com>
---
 .../bindings/soc/mediatek/mtk-svs.yaml        | 80 +++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/soc/mediatek/mtk-svs.yaml

Comments

Nishanth Menon Jan. 15, 2021, 1:46 p.m. UTC | #1 
On 08:47-20210112, Rob Herring wrote:
> > +
> > +maintainers:
> > +  - Matthias Brugger <matthias.bgg@gmail.com>
> > +  - Kevin Hilman <khilman@kernel.org>
> > +  - Nishanth Menon <nm@ti.com>
> 
> This should be someone that knows the h/w. Not who applies patches. 
> Perhaps you.

Yes please, I would have no idea what to do with SVS patches. Thanks Rob
for catching it.
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/soc/mediatek/mtk-svs.yaml b/Documentation/devicetree/bindings/soc/mediatek/mtk-svs.yaml
new file mode 100644
index 000000000000..bb8c345a0c0a
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/mediatek/mtk-svs.yaml
@@ -0,0 +1,80 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/mediatek/mtk-svs.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Introduce MTK SVS engine
+
+maintainers:
+  - Matthias Brugger <matthias.bgg@gmail.com>
+  - Kevin Hilman <khilman@kernel.org>
+  - Nishanth Menon <nm@ti.com>
+
+description: |+
+  The Smart Voltage Scaling(SVS) engine is a piece of hardware
+  which has several controllers(banks) for calculating suitable
+  voltage to different power domains(CPU/GPU/CCI) according to
+  chip process corner, temperatures and other factors. Then DVFS
+  driver could apply SVS bank voltage to PMIC/Buck.
+
+properties:
+  compatible:
+    enum:
+      - mediatek,mt8183-svs
+
+  reg:
+    description: Address range of the MTK SVS controller.
+    maxItems: 1
+
+  interrupts:
+    description: IRQ for the MTK SVS controller.
+    maxItems: 1
+
+  clocks:
+    description: Main clock for MTK SVS controller to work.
+
+  clock-names:
+    const: main
+
+  nvmem-cells:
+    maxItems: 2
+    description:
+      Phandle to the calibration data provided by a nvmem device.
+
+  nvmem-cell-names:
+    items:
+      - const: svs-calibration-data
+      - const: t-calibration-data
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - nvmem-cells
+  - nvmem-cell-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/mt8183-clk.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        svs@1100b000 {
+            compatible = "mediatek,mt8183-svs";
+            reg = <0 0x1100b000 0 0x1000>;
+            interrupts = <GIC_SPI 127 IRQ_TYPE_LEVEL_LOW>;
+            clocks = <&infracfg CLK_INFRA_THERM>;
+            clock-names = "main";
+            nvmem-cells = <&svs_calibration>, <&thermal_calibration>;
+            nvmem-cell-names = "svs-calibration-data", "t-calibration-data";
+        };
+    };