diff mbox series

[v1,2/6] dt-bindings: interconnect: Add MediaTek EMI Interconnect bindings

Message ID 20240416153805.431118-3-angelogioacchino.delregno@collabora.com (mailing list archive)
State Handled Elsewhere, archived
Headers show
Series MediaTek DVFSRC Bus Bandwidth and Regulator knobs | expand

Commit Message

AngeloGioacchino Del Regno April 16, 2024, 3:38 p.m. UTC 
Add bindings for the MediaTek External Memory Interface Interconnect,
which providers support system bandwidth requirements through Dynamic
Voltage Frequency Scaling Resource Collector (DVFSRC) hardware.

This adds bindings for MediaTek MT8183 and MT8195 SoCs.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 .../interconnect/mediatek,mt8183-emi.yaml     | 76 +++++++++++++++++++
 .../interconnect/mediatek,mt8183.h            | 23 ++++++
 .../interconnect/mediatek,mt8195.h            | 44 +++++++++++
 3 files changed, 143 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interconnect/mediatek,mt8183-emi.yaml
 create mode 100644 include/dt-bindings/interconnect/mediatek,mt8183.h
 create mode 100644 include/dt-bindings/interconnect/mediatek,mt8195.h

Comments

Rob Herring (Arm) April 16, 2024, 4:33 p.m. UTC | #1 
On Tue, 16 Apr 2024 17:38:01 +0200, AngeloGioacchino Del Regno wrote:
> Add bindings for the MediaTek External Memory Interface Interconnect,
> which providers support system bandwidth requirements through Dynamic
> Voltage Frequency Scaling Resource Collector (DVFSRC) hardware.
> 
> This adds bindings for MediaTek MT8183 and MT8195 SoCs.
> 
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
> ---
>  .../interconnect/mediatek,mt8183-emi.yaml     | 76 +++++++++++++++++++
>  .../interconnect/mediatek,mt8183.h            | 23 ++++++
>  .../interconnect/mediatek,mt8195.h            | 44 +++++++++++
>  3 files changed, 143 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/interconnect/mediatek,mt8183-emi.yaml
>  create mode 100644 include/dt-bindings/interconnect/mediatek,mt8183.h
>  create mode 100644 include/dt-bindings/interconnect/mediatek,mt8195.h
> 

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/interconnect/mediatek,mt8183-emi.example.dtb: dvfsrc@10012000: '#address-cells', '#size-cells' do not match any of the regexes: '@[0-9a-f]+$', 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/soc/mediatek/mediatek,mt8183-dvfsrc.yaml#

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20240416153805.431118-3-angelogioacchino.delregno@collabora.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/interconnect/mediatek,mt8183-emi.yaml b/Documentation/devicetree/bindings/interconnect/mediatek,mt8183-emi.yaml
new file mode 100644
index 000000000000..e6e0db71209b
--- /dev/null
+++ b/Documentation/devicetree/bindings/interconnect/mediatek,mt8183-emi.yaml
@@ -0,0 +1,76 @@ 
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interconnect/mediatek,mt8183-emi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek External Memory Interface (EMI) Interconnect
+
+maintainers:
+  - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
+
+description: |
+  EMI interconnect providers support system bandwidth requirements through
+  Dynamic Voltage Frequency Scaling Resource Collector (DVFSRC) hardware.
+  The provider is able to communicate with the DVFSRC through Secure Monitor
+  Call (SMC).
+
+             ICC provider         ICC Nodes
+                              ----          ----
+             _________       |CPU |   |--- |VPU |
+    _____   |         |-----  ----    |     ----
+   |     |->|  DRAM   |       ----    |     ----
+   |DRAM |->|scheduler|----- |GPU |   |--- |DISP|
+   |     |->|  (EMI)  |       ----    |     ----
+   |_____|->|_________|---.   -----   |     ----
+               /|\         `-|MMSYS|--|--- |VDEC|
+                |             -----   |     ----
+                |                     |     ----
+                | change DRAM freq    |--- |VENC|
+             --------                 |     ----
+    SMC --> | DVFSRC |                |     ----
+             --------                 |--- |IMG |
+                                      |     ----
+                                      |     ----
+                                      |--- |CAM |
+                                            ----
+
+properties:
+  compatible:
+    enum:
+      - mediatek,mt8183-emi
+      - mediatek,mt8195-emi
+
+  reg:
+    maxItems: 1
+
+  '#interconnect-cells':
+    const: 1
+
+required:
+  - compatible
+  - '#interconnect-cells'
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interconnect/mediatek,mt8195.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        dvfsrc@10012000 {
+            compatible = "mediatek,mt8195-dvfsrc";
+            reg = <0 0x10012000 0 0x1000>;
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            emi_icc: interconnect@1 {
+                compatible = "mediatek,mt8195-emi";
+                reg = <1>;
+                #interconnect-cells = <1>;
+            };
+        };
+    };
diff --git a/include/dt-bindings/interconnect/mediatek,mt8183.h b/include/dt-bindings/interconnect/mediatek,mt8183.h
new file mode 100644
index 000000000000..1088c350258d
--- /dev/null
+++ b/include/dt-bindings/interconnect/mediatek,mt8183.h
@@ -0,0 +1,23 @@ 
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * Copyright (c) 2021 MediaTek Inc.
+ * Copyright (c) 2024 Collabora Ltd.
+ *                    AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
+ */
+
+#ifndef __DT_BINDINGS_INTERCONNECT_MEDIATEK_MT8183_H
+#define __DT_BINDINGS_INTERCONNECT_MEDIATEK_MT8183_H
+
+#define SLAVE_DDR_EMI		0
+#define MASTER_MCUSYS		1
+#define MASTER_MFG		2
+#define MASTER_MMSYS		3
+#define MASTER_MM_VPU		4
+#define MASTER_MM_DISP		5
+#define MASTER_MM_VDEC		6
+#define MASTER_MM_VENC		7
+#define MASTER_MM_CAM		8
+#define MASTER_MM_IMG		9
+#define MASTER_MM_MDP		10
+
+#endif
diff --git a/include/dt-bindings/interconnect/mediatek,mt8195.h b/include/dt-bindings/interconnect/mediatek,mt8195.h
new file mode 100644
index 000000000000..33e0e6cde732
--- /dev/null
+++ b/include/dt-bindings/interconnect/mediatek,mt8195.h
@@ -0,0 +1,44 @@ 
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * Copyright (c) 2020 MediaTek Inc.
+ * Copyright (c) 2024 Collabora Ltd.
+ *                    AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
+ */
+
+#ifndef __DT_BINDINGS_INTERCONNECT_MEDIATEK_MT8195_H
+#define __DT_BINDINGS_INTERCONNECT_MEDIATEK_MT8195_H
+
+#define SLAVE_DDR_EMI		0
+#define MASTER_MCUSYS		1
+#define MASTER_GPUSYS		2
+#define MASTER_MMSYS		3
+#define MASTER_MM_VPU		4
+#define MASTER_MM_DISP		5
+#define MASTER_MM_VDEC		6
+#define MASTER_MM_VENC		7
+#define MASTER_MM_CAM		8
+#define MASTER_MM_IMG		9
+#define MASTER_MM_MDP		10
+#define MASTER_VPUSYS		11
+#define MASTER_VPU_0		12
+#define MASTER_VPU_1		13
+#define MASTER_MDLASYS		14
+#define MASTER_MDLA_0		15
+#define MASTER_UFS		16
+#define MASTER_PCIE_0		17
+#define MASTER_PCIE_1		18
+#define MASTER_USB		19
+#define MASTER_DBGIF		20
+#define SLAVE_HRT_DDR_EMI	21
+#define MASTER_HRT_MMSYS	22
+#define MASTER_HRT_MM_DISP	23
+#define MASTER_HRT_MM_VDEC	24
+#define MASTER_HRT_MM_VENC	25
+#define MASTER_HRT_MM_CAM	26
+#define MASTER_HRT_MM_IMG	27
+#define MASTER_HRT_MM_MDP	28
+#define MASTER_HRT_DBGIF	29
+#define MASTER_WIFI		30
+#define MASTER_BT		31
+#define MASTER_NETSYS		32
+#endif