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Message-Id: <20210601022319.17938-2-digetx@gmail.com>
Date: Tue, 1 Jun 2021 05:23:18 +0300
From: Dmitry Osipenko <digetx@...il.com>
To: Thierry Reding <thierry.reding@...il.com>,
Jonathan Hunter <jonathanh@...dia.com>,
MyungJoo Ham <myungjoo.ham@...sung.com>,
Kyungmin Park <kyungmin.park@...sung.com>,
Chanwoo Choi <cw00.choi@...sung.com>,
Peter Geis <pgwipeout@...il.com>,
Matt Merhar <mattmerhar@...tonmail.com>
Cc: linux-tegra@...r.kernel.org, linux-pm@...r.kernel.org,
Rob Herring <robh+dt@...nel.org>, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org
Subject: [PATCH v2 1/2] dt-bindings: devfreq: tegra30-actmon: Convert to schema
Convert NVIDIA Tegra ACTMON binding to schema.
Reviewed-by: Rob Herring <robh@...nel.org>
Acked-by: Chanwoo Choi <cw00.choi@...sung.com>
Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
.../arm/tegra/nvidia,tegra30-actmon.txt | 57 ---------
.../devfreq/nvidia,tegra30-actmon.yaml | 121 ++++++++++++++++++
2 files changed, 121 insertions(+), 57 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/arm/tegra/nvidia,tegra30-actmon.txt
create mode 100644 Documentation/devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml
diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra30-actmon.txt b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra30-actmon.txt
deleted file mode 100644
index 897eedfa2bc8..000000000000
--- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra30-actmon.txt
+++ /dev/null
@@ -1,57 +0,0 @@
-NVIDIA Tegra Activity Monitor
-
-The activity monitor block collects statistics about the behaviour of other
-components in the system. This information can be used to derive the rate at
-which the external memory needs to be clocked in order to serve all requests
-from the monitored clients.
-
-Required properties:
-- compatible: should be "nvidia,tegra<chip>-actmon"
-- reg: offset and length of the register set for the device
-- interrupts: standard interrupt property
-- clocks: Must contain a phandle and clock specifier pair for each entry in
-clock-names. See ../../clock/clock-bindings.txt for details.
-- clock-names: Must include the following entries:
- - actmon
- - emc
-- resets: Must contain an entry for each entry in reset-names. See
-../../reset/reset.txt for details.
-- reset-names: Must include the following entries:
- - actmon
-- operating-points-v2: See ../bindings/opp/opp.txt for details.
-- interconnects: Should contain entries for memory clients sitting on
- MC->EMC memory interconnect path.
-- interconnect-names: Should include name of the interconnect path for each
- interconnect entry. Consult TRM documentation for
- information about available memory clients, see MEMORY
- CONTROLLER section.
-
-For each opp entry in 'operating-points-v2' table:
-- opp-supported-hw: bitfield indicating SoC speedo ID mask
-- opp-peak-kBps: peak bandwidth of the memory channel
-
-Example:
- dfs_opp_table: opp-table {
- compatible = "operating-points-v2";
-
- opp@...50000 {
- opp-hz = /bits/ 64 <12750000>;
- opp-supported-hw = <0x000F>;
- opp-peak-kBps = <51000>;
- };
- ...
- };
-
- actmon@...0c800 {
- compatible = "nvidia,tegra124-actmon";
- reg = <0x0 0x6000c800 0x0 0x400>;
- interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&tegra_car TEGRA124_CLK_ACTMON>,
- <&tegra_car TEGRA124_CLK_EMC>;
- clock-names = "actmon", "emc";
- resets = <&tegra_car 119>;
- reset-names = "actmon";
- operating-points-v2 = <&dfs_opp_table>;
- interconnects = <&mc TEGRA124_MC_MPCORER &emc>;
- interconnect-names = "cpu";
- };
diff --git a/Documentation/devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml b/Documentation/devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml
new file mode 100644
index 000000000000..ba938eed28ee
--- /dev/null
+++ b/Documentation/devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml
@@ -0,0 +1,121 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/devfreq/nvidia,tegra30-actmon.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra30 Activity Monitor
+
+maintainers:
+ - Dmitry Osipenko <digetx@...il.com>
+ - Jon Hunter <jonathanh@...dia.com>
+ - Thierry Reding <thierry.reding@...il.com>
+
+description: |
+ The activity monitor block collects statistics about the behaviour of other
+ components in the system. This information can be used to derive the rate at
+ which the external memory needs to be clocked in order to serve all requests
+ from the monitored clients.
+
+properties:
+ compatible:
+ enum:
+ - nvidia,tegra30-actmon
+ - nvidia,tegra114-actmon
+ - nvidia,tegra124-actmon
+ - nvidia,tegra210-actmon
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: actmon
+ - const: emc
+
+ resets:
+ maxItems: 1
+
+ reset-names:
+ items:
+ - const: actmon
+
+ interrupts:
+ maxItems: 1
+
+ interconnects:
+ minItems: 1
+ maxItems: 12
+
+ interconnect-names:
+ minItems: 1
+ maxItems: 12
+ description:
+ Should include name of the interconnect path for each interconnect
+ entry. Consult TRM documentation for information about available
+ memory clients, see MEMORY CONTROLLER and ACTIVITY MONITOR sections.
+
+ operating-points-v2:
+ description:
+ Should contain freqs and voltages and opp-supported-hw property, which
+ is a bitfield indicating SoC speedo ID mask.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+ - interrupts
+ - interconnects
+ - interconnect-names
+ - operating-points-v2
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/memory/tegra30-mc.h>
+
+ mc: memory-controller@...0f000 {
+ compatible = "nvidia,tegra30-mc";
+ reg = <0x7000f000 0x400>;
+ clocks = <&clk 32>;
+ clock-names = "mc";
+
+ interrupts = <0 77 4>;
+
+ #iommu-cells = <1>;
+ #reset-cells = <1>;
+ #interconnect-cells = <1>;
+ };
+
+ emc: external-memory-controller@...0f400 {
+ compatible = "nvidia,tegra30-emc";
+ reg = <0x7000f400 0x400>;
+ interrupts = <0 78 4>;
+ clocks = <&clk 57>;
+
+ nvidia,memory-controller = <&mc>;
+ operating-points-v2 = <&dvfs_opp_table>;
+ power-domains = <&domain>;
+
+ #interconnect-cells = <0>;
+ };
+
+ actmon@...0c800 {
+ compatible = "nvidia,tegra30-actmon";
+ reg = <0x6000c800 0x400>;
+ interrupts = <0 45 4>;
+ clocks = <&clk 119>, <&clk 57>;
+ clock-names = "actmon", "emc";
+ resets = <&rst 119>;
+ reset-names = "actmon";
+ operating-points-v2 = <&dvfs_opp_table>;
+ interconnects = <&mc TEGRA30_MC_MPCORER &emc>;
+ interconnect-names = "cpu-read";
+ };
--
2.30.2
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