From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
To: djakov@kernel.org
Cc: robh@kernel.org, krzysztof.kozlowski+dt@linaro.org,
conor+dt@kernel.org, matthias.bgg@gmail.com,
angelogioacchino.delregno@collabora.com, lgirdwood@gmail.com,
broonie@kernel.org, keescook@chromium.org, gustavoars@kernel.org,
henryc.chen@mediatek.com, linux-pm@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org, kernel@collabora.com,
wenst@chromium.org, amergnat@baylibre.com
Subject: [PATCH v5 3/7] dt-bindings: soc: mediatek: Add DVFSRC bindings for MT8183 and MT8195
Date: Wed, 24 Apr 2024 11:54:12 +0200 [thread overview]
Message-ID: <20240424095416.1105639-4-angelogioacchino.delregno@collabora.com> (raw)
In-Reply-To: <20240424095416.1105639-1-angelogioacchino.delregno@collabora.com>
Add bindings for the MediaTek Dynamic Voltage and Frequency Scaling
Resource Collector (DVFSRC), a hardware module used to collect all the
requests from both software and the various remote processors embedded
into the SoC and decide about a minimum operating voltage and a minimum
DRAM frequency to fulfill those requests in an effort to provide the
best achievable performance per watt.
This hardware IP is capable of transparently performing direct register
R/W on all of the DVFSRC-controlled regulators and SoC bandwidth knobs.
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
.../soc/mediatek/mediatek,mt8183-dvfsrc.yaml | 83 +++++++++++++++++++
1 file changed, 83 insertions(+)
create mode 100644 Documentation/devicetree/bindings/soc/mediatek/mediatek,mt8183-dvfsrc.yaml
diff --git a/Documentation/devicetree/bindings/soc/mediatek/mediatek,mt8183-dvfsrc.yaml b/Documentation/devicetree/bindings/soc/mediatek/mediatek,mt8183-dvfsrc.yaml
new file mode 100644
index 000000000000..1ad5b61b249f
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/mediatek/mediatek,mt8183-dvfsrc.yaml
@@ -0,0 +1,83 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/mediatek/mediatek,mt8183-dvfsrc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Dynamic Voltage and Frequency Scaling Resource Collector (DVFSRC)
+
+description:
+ The Dynamic Voltage and Frequency Scaling Resource Collector (DVFSRC) is a
+ Hardware module used to collect all the requests from both software and the
+ various remote processors embedded into the SoC and decide about a minimum
+ operating voltage and a minimum DRAM frequency to fulfill those requests in
+ an effort to provide the best achievable performance per watt.
+ This hardware IP is capable of transparently performing direct register R/W
+ on all of the DVFSRC-controlled regulators and SoC bandwidth knobs.
+
+maintainers:
+ - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
+ - Henry Chen <henryc.chen@mediatek.com>
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - mediatek,mt8183-dvfsrc
+ - mediatek,mt8195-dvfsrc
+ - items:
+ - const: mediatek,mt8192-dvfsrc
+ - const: mediatek,mt8195-dvfsrc
+
+ reg:
+ maxItems: 1
+ description: DVFSRC common register address and length.
+
+ regulators:
+ type: object
+ $ref: /schemas/regulator/mediatek,mt6873-dvfsrc-regulator.yaml#
+
+ interconnect:
+ type: object
+ $ref: /schemas/interconnect/mediatek,mt8183-emi.yaml#
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ system-controller@10012000 {
+ compatible = "mediatek,mt8195-dvfsrc";
+ reg = <0 0x10012000 0 0x1000>;
+
+ regulators {
+ compatible = "mediatek,mt8195-dvfsrc-regulator";
+
+ dvfsrc_vcore: dvfsrc-vcore {
+ regulator-name = "dvfsrc-vcore";
+ regulator-min-microvolt = <550000>;
+ regulator-max-microvolt = <750000>;
+ regulator-always-on;
+ };
+
+ dvfsrc_vscp: dvfsrc-vscp {
+ regulator-name = "dvfsrc-vscp";
+ regulator-min-microvolt = <550000>;
+ regulator-max-microvolt = <750000>;
+ regulator-always-on;
+ };
+ };
+
+ emi_icc: interconnect {
+ compatible = "mediatek,mt8195-emi";
+ #interconnect-cells = <1>;
+ };
+ };
+ };
--
2.44.0
next prev parent reply other threads:[~2024-04-24 9:54 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-24 9:54 [PATCH v5 0/7] MediaTek DVFSRC Bus Bandwidth and Regulator knobs AngeloGioacchino Del Regno
2024-04-24 9:54 ` [PATCH v5 1/7] dt-bindings: regulator: Add bindings for MediaTek DVFSRC Regulators AngeloGioacchino Del Regno
2024-04-24 9:54 ` [PATCH v5 2/7] dt-bindings: interconnect: Add MediaTek EMI Interconnect bindings AngeloGioacchino Del Regno
2024-04-24 9:54 ` AngeloGioacchino Del Regno [this message]
2024-04-24 9:54 ` [PATCH v5 4/7] soc: mediatek: Add MediaTek DVFS Resource Collector (DVFSRC) driver AngeloGioacchino Del Regno
2024-04-24 19:04 ` Nathan Chancellor
2024-04-29 8:08 ` AngeloGioacchino Del Regno
2024-04-29 14:13 ` Georgi Djakov
2024-04-24 9:54 ` [PATCH v5 5/7] regulator: Remove mtk-dvfsrc-regulator.c AngeloGioacchino Del Regno
2024-04-24 9:54 ` [PATCH v5 6/7] regulator: Add refactored mtk-dvfsrc-regulator driver AngeloGioacchino Del Regno
2024-04-24 10:35 ` Christophe JAILLET
2024-04-24 12:53 ` AngeloGioacchino Del Regno
2024-04-24 12:54 ` AngeloGioacchino Del Regno
2024-04-24 9:54 ` [PATCH v5 7/7] interconnect: mediatek: Add MediaTek MT8183/8195 EMI Interconnect driver AngeloGioacchino Del Regno
2024-05-03 11:53 ` Georgi Djakov
2024-05-06 10:49 ` AngeloGioacchino Del Regno
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