linux-kernel - [PATCH 01/14] dt-bindings: display: imx: Add i.MX8qxp/qm PRG binding

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Message-Id: <20250704-imx8-dc-prefetch-v1-1-784c03fd645f@nxp.com>
Date: Fri, 04 Jul 2025 17:03:48 +0800
From: Liu Ying <victor.liu@....com>
To: Philipp Zabel <p.zabel@...gutronix.de>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>, 
 Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>, Dmitry Baryshkov <lumag@...nel.org>
Cc: dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org, 
 imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
 linux-kernel@...r.kernel.org
Subject: [PATCH 01/14] dt-bindings: display: imx: Add i.MX8qxp/qm PRG
 binding

Add bindings for i.MX8qxp/qm Display Prefetch Resolve Gasket.

Reviewed-by: Rob Herring <robh@...nel.org>
Signed-off-by: Liu Ying <victor.liu@....com>
---
Changed commit message to use imperative mood.
---
 .../bindings/display/imx/fsl,imx8qxp-prg.yaml      | 60 ++++++++++++++++++++++
 1 file changed, 60 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-prg.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-prg.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..3ff46e0d4e73488f8a3ed538830570b1ec71b50c
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-prg.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-prg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qm/qxp Display Prefetch Resolve Gasket
+
+maintainers:
+  - Liu Ying <victor.liu@....com>
+
+description: |
+  The i.MX8qm/qxp Prefetch Resolve Gasket (PRG) is a gasket interface between
+  RTRAM controller and Display Controller.  The main function is to convert
+  the AXI interface to the RTRAM interface, which includes re-mapping the
+  ARADDR to a RTRAM address.
+
+properties:
+  compatible:
+    enum:
+      - fsl,imx8qxp-prg
+      - fsl,imx8qm-prg
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: rtram clock
+      - description: apb clock
+
+  clock-names:
+    items:
+      - const: rtram
+      - const: apb
+
+  power-domains:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - power-domains
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/imx8-lpcg.h>
+    #include <dt-bindings/firmware/imx/rsrc.h>
+    prg@...40000 {
+        compatible = "fsl,imx8qxp-prg";
+        reg = <0x56040000 0x10000>;
+        clocks = <&dc0_prg0_lpcg IMX_LPCG_CLK_0>,
+                 <&dc0_prg0_lpcg IMX_LPCG_CLK_4>;
+        clock-names = "rtram", "apb";
+        power-domains = <&pd IMX_SC_R_DC_0>;
+    };

-- 
2.34.1