Thread (24 messages) read the whole thread 24 messages, 3 authors, 2023-12-20
STALE954d REVIEWED: 2 (2M)

Revision v9 of 6 in this series; 1 review trailer.

Revisions (6)
  1. v5 [diff vs current]
  2. v6 [diff vs current]
  3. v7 [diff vs current]
  4. v8 [diff vs current]
  5. v9 current
  6. v10 [diff vs current]

[PATCH v9 02/16] dt-bindings: media: mediatek: mdp3: merge the indentical RDMA under display

From: Moudy Ho <hidden>
Date: 2023-10-31 08:34:22
Also in: dri-devel, linux-arm-kernel, linux-media, linux-mediatek, lkml
Subsystem: drm drivers, drm drivers and misc gpu patches, drm drivers for mediatek, media input infrastructure (v4l/dvb), open firmware and flattened device tree bindings, the rest · Maintainers: David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Chun-Kuang Hu, Philipp Zabel, Mauro Carvalho Chehab, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds

To simplify maintenance and avoid branches, the identical component
should be merged and placed in the path belonging to the MDP
(from display/* to media/*).

In addition, currently only MDP utilizes RDMA through CMDQ, and the
necessary properties for "mediatek,gce-events", and "mboxes" have been
set up for this purpose.
Within DISP, it directly receives component interrupt signals.

Signed-off-by: Moudy Ho <redacted>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 .../display/mediatek/mediatek,mdp-rdma.yaml   | 88 -------------------
 .../bindings/media/mediatek,mdp3-rdma.yaml    | 42 ++++++++-
 2 files changed, 38 insertions(+), 92 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,mdp-rdma.yaml
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,mdp-rdma.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,mdp-rdma.yaml
deleted file mode 100644
index dd12e2ff685c..000000000000
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,mdp-rdma.yaml
+++ /dev/null
@@ -1,88 +0,0 @@
-# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/display/mediatek/mediatek,mdp-rdma.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: MediaTek MDP RDMA
-
-maintainers:
-  - Chun-Kuang Hu <chunkuang.hu@kernel.org>
-  - Philipp Zabel <p.zabel@pengutronix.de>
-
-description:
-  The MediaTek MDP RDMA stands for Read Direct Memory Access.
-  It provides real time data to the back-end panel driver, such as DSI,
-  DPI and DP_INTF.
-  It contains one line buffer to store the sufficient pixel data.
-  RDMA device node must be siblings to the central MMSYS_CONFIG node.
-  For a description of the MMSYS_CONFIG binding, see
-  Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml for details.
-
-properties:
-  compatible:
-    const: mediatek,mt8195-vdo1-rdma
-
-  reg:
-    maxItems: 1
-
-  interrupts:
-    maxItems: 1
-
-  power-domains:
-    maxItems: 1
-
-  clocks:
-    items:
-      - description: RDMA Clock
-
-  iommus:
-    maxItems: 1
-
-  mediatek,gce-client-reg:
-    description:
-      The register of display function block to be set by gce. There are 4 arguments,
-      such as gce node, subsys id, offset and register size. The subsys id that is
-      mapping to the register of display function blocks is defined in the gce header
-      include/dt-bindings/gce/<chip>-gce.h of each chips.
-    $ref: /schemas/types.yaml#/definitions/phandle-array
-    items:
-      items:
-        - description: phandle of GCE
-        - description: GCE subsys id
-        - description: register offset
-        - description: register size
-    maxItems: 1
-
-required:
-  - compatible
-  - reg
-  - power-domains
-  - clocks
-  - iommus
-  - mediatek,gce-client-reg
-
-additionalProperties: false
-
-examples:
-  - |
-    #include <dt-bindings/interrupt-controller/arm-gic.h>
-    #include <dt-bindings/clock/mt8195-clk.h>
-    #include <dt-bindings/power/mt8195-power.h>
-    #include <dt-bindings/gce/mt8195-gce.h>
-    #include <dt-bindings/memory/mt8195-memory-port.h>
-
-    soc {
-        #address-cells = <2>;
-        #size-cells = <2>;
-
-        rdma@1c104000 {
-            compatible = "mediatek,mt8195-vdo1-rdma";
-            reg = <0 0x1c104000 0 0x1000>;
-            interrupts = <GIC_SPI 495 IRQ_TYPE_LEVEL_HIGH 0>;
-            clocks = <&vdosys1 CLK_VDO1_MDP_RDMA0>;
-            power-domains = <&spm MT8195_POWER_DOMAIN_VDOSYS1>;
-            iommus = <&iommu_vdo M4U_PORT_L2_MDP_RDMA0>;
-            mediatek,gce-client-reg = <&gce0 SUBSYS_1c10XXXX 0x4000 0x1000>;
-        };
-    };
diff --git a/Documentation/devicetree/bindings/media/mediatek,mdp3-rdma.yaml b/Documentation/devicetree/bindings/media/mediatek,mdp3-rdma.yaml
index 3e128733ef53..13f915d4d76f 100644
--- a/Documentation/devicetree/bindings/media/mediatek,mdp3-rdma.yaml
+++ b/Documentation/devicetree/bindings/media/mediatek,mdp3-rdma.yaml
@@ -20,8 +20,9 @@ description: |
 
 properties:
   compatible:
-    items:
-      - const: mediatek,mt8183-mdp3-rdma
+    enum:
+      - mediatek,mt8183-mdp3-rdma
+      - mediatek,mt8195-vdo1-rdma
 
   reg:
     maxItems: 1
@@ -52,6 +53,7 @@ properties:
     items:
       - description: RDMA clock
       - description: RSZ clock
+    minItems: 1
 
   iommus:
     maxItems: 1
@@ -60,6 +62,10 @@ properties:
     items:
       - description: used for 1st data pipe from RDMA
       - description: used for 2nd data pipe from RDMA
+    minItems: 1
+
+  interrupts:
+    maxItems: 1
 
   '#dma-cells':
     const: 1
@@ -68,13 +74,41 @@ required:
   - compatible
   - reg
   - mediatek,gce-client-reg
-  - mediatek,gce-events
   - power-domains
   - clocks
   - iommus
-  - mboxes
   - '#dma-cells'
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: mediatek,mt8183-mdp3-rdma
+
+    then:
+      properties:
+        clocks:
+          minItems: 2
+
+        mboxes:
+          minItems: 2
+
+      required:
+        - mboxes
+        - mediatek,gce-events
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: mediatek,mt8195-vdo1-rdma
+
+    then:
+      properties:
+        clocks:
+          maxItems: 1
+
 additionalProperties: false
 
 examples:
-- 
2.18.0
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help