linux-kernel - [PATCH 01/29] dt-bindings: media: mfc: Add Exynos MFC devicetree binding

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Message-Id: <20250930040348.3702923-2-h.dewangan@samsung.com>
Date: Tue, 30 Sep 2025 09:33:20 +0530
From: Himanshu Dewangan <h.dewangan@...sung.com>
To: mchehab@...nel.org, robh@...nel.org, krzk+dt@...nel.org,
	conor+dt@...nel.org, sumit.semwal@...aro.org, christian.koenig@....com,
	alim.akhtar@...sung.com, manjun@...sung.com, nagaraju.s@...sung.com,
	ih0206.lee@...sung.com, jehyung.lee@...sung.com
Cc: linux-arm-kernel@...ts.infradead.org, linux-media@...r.kernel.org,
	devicetree@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	linaro-mm-sig@...ts.linaro.org, Himanshu Dewangan <h.dewangan@...sung.com>
Subject: [PATCH 01/29] dt-bindings: media: mfc: Add Exynos MFC devicetree
 binding

From: Nagaraju Siddineni <nagaraju.s@...sung.com>

Introduce a new DT binding file for exynos-mfc

Documentation/devicetree/bindings/media/samsung,exynos-mfc.yaml
which describes the Exynos Multi‑Format Codec (MFC) IP.  The schema
covers the core node properties, required fields, and provides an
example snippet.

Signed-off-by: Himanshu Dewangan <h.dewangan@...sung.com>
Signed-off-by: Nagaraju Siddineni <nagaraju.s@...sung.com>
---
 .../bindings/media/samsung,exynos-mfc.yaml    | 77 +++++++++++++++++++
 MAINTAINERS                                   | 10 +++
 2 files changed, 87 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/samsung,exynos-mfc.yaml

diff --git a/Documentation/devicetree/bindings/media/samsung,exynos-mfc.yaml b/Documentation/devicetree/bindings/media/samsung,exynos-mfc.yaml
new file mode 100644
index 000000000000..fbed987fb9cf
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/samsung,exynos-mfc.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/samsung,exynos-mfc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung Exynos Multi Format Codec (MFC)
+
+maintainers:
+  - Nagaraju Siddineni <nagaraju.s@...sung.com>
+  - Himanshu Dewangan <h.dewangan@...sung.com>
+
+description:
+  Multi Format Codec (MFC) is the IP present in Samsung SoCs which
+  supports high resolution decoding and encoding functionalities.
+
+properties:
+  compatible:
+    oneOf:
+      - enum:
+          - samsung,exynos-mfc            # Exynos920
+          - samsung,mfc_core0_mem         # Reserved Memory
+          - samsung,mfc_core1_mem         # Reserved Memory
+
+  power-domains:
+    maximum: 1
+
+  memory-region:
+    minimum: 1
+    maximum: 2
+
+additionalProperties: true
+
+patternProperties:
+  "^mfc_core[0-9]$":
+    type: object
+    properties:
+      compatible:
+        enum:
+          - samsung,exynos-mfc-core
+      reg:
+        maximum: 1
+      interrupts:
+        maximum: 1
+      clocks:
+        minimum: 1
+        maximum: 1
+      clock-names:
+        items:
+          - const: aclk_mfc
+
+    required:
+      - compatible
+      - reg
+      - clocks
+      - clock-names
+      - interrupts
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    mfc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+        compatible = "samsung,exynos-mfc";
+        mfc_core0: MFC-0@...d0000 {
+          #address-cells = <2>;
+          #size-cells = <2>;
+          compatible = "samsung,exynos-mfc-core";
+          reg = <0x0 0x19ED0000 0x0 0x10000>;
+          interrupts = <GIC_SPI 660 IRQ_TYPE_LEVEL_HIGH>;
+          power-domains = <&pd_mfc>;
+          clocks = <&cmu_top 2000>;
+          clock-names = "aclk_mfc";
+          };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 156fa8eefa69..e47016804ac8 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3374,6 +3374,16 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/media/samsung,s5p-mfc.yaml
 F:	drivers/media/platform/samsung/s5p-mfc/
 
+ARM/SAMSUNG EXYNOS SERIES Multi Format Codec (MFC) SUPPORT
+M:	Nagaraju Siddineni <nagaraju.s@...sung.com>
+M:	Himanshu Dewangan <h.dewangan@...sung.com>
+L:	linux-arm-kernel@...ts.infradead.org (moderated for non-subscribers)
+L:	linux-media@...r.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/media/samsung,exynos-mfc.yaml
+F:	drivers/media/platform/samsung/exynos-mfc/
+F:	drivers/media/platform/samsung/exynos-mfc/base/
+
 ARM/SOCFPGA ARCHITECTURE
 M:	Dinh Nguyen <dinguyen@...nel.org>
 S:	Maintained
-- 
2.34.1