linux-kernel - [PATCH v2] dt-bindings: remoteproc: mediatek: Remove l1tcm MMIO from MT8188 dual

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <20260115111645.63295-1-angelogioacchino.delregno@collabora.com>
Date: Thu, 15 Jan 2026 12:16:45 +0100
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: devicetree@...r.kernel.org
Cc: andersson@...nel.org,
	mathieu.poirier@...aro.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	matthias.bgg@...il.com,
	angelogioacchino.delregno@...labora.com,
	tinghan.shen@...iatek.com,
	olivia.wen@...iatek.com,
	linux-remoteproc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	kernel@...labora.com
Subject: [PATCH v2] dt-bindings: remoteproc: mediatek: Remove l1tcm MMIO from MT8188 dual

Even though the MT8188 SoC's Dual-Core SCP IP is practically the
same as the one found on MT8195, it doesn't have a dedicated L1
TCM and relies only on SRAM.

Set reg/reg-names minItems to 1 globally and override it in all of
the conditionals for the SoCs that require more, and then split
the mt8195/8188 conditionals to allow specifying only the cfg MMIO
on MT8188.

Fixes: 91e0d560b9fd ("dt-bindings: remoteproc: mediatek: Support MT8188 dual-core SCP")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---

Changes in v2:
 - Fix dtc warnings and validate again

  CHKDT   ./Documentation/devicetree/bindings
  LINT    ./Documentation/devicetree/bindings
  DTEX    Documentation/devicetree/bindings/remoteproc/mtk,scp.example.dts
  DTC [C] Documentation/devicetree/bindings/remoteproc/mtk,scp.example.dtb
Done.

 .../bindings/remoteproc/mtk,scp.yaml          | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml b/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
index 179c98b33b4d..f0cae3e4bc78 100644
--- a/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
@@ -28,11 +28,11 @@ properties:
     description:
       Should contain the address ranges for memory regions SRAM, CFG, and,
       on some platforms, L1TCM.
-    minItems: 2
+    minItems: 1
     maxItems: 3
 
   reg-names:
-    minItems: 2
+    minItems: 1
     maxItems: 3
 
   clocks:
@@ -185,7 +185,7 @@ allOf:
     then:
       properties:
         reg:
-          maxItems: 3
+          minItems: 3
         reg-names:
           items:
             - const: sram
@@ -196,11 +196,22 @@ allOf:
         compatible:
           enum:
             - mediatek,mt8188-scp-dual
+    then:
+      properties:
+        reg:
+          maxItems: 1
+        reg-names:
+          items:
+            - const: cfg
+  - if:
+      properties:
+        compatible:
+          enum:
             - mediatek,mt8195-scp-dual
     then:
       properties:
         reg:
-          maxItems: 2
+          minItems: 2
         reg-names:
           items:
             - const: cfg
-- 
2.52.0