linux-kernel - [PATCH v6 2/9] media: dt-bindings: Add bindings for i.MX8QXP/QM JPEG driver

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Date:   Tue, 15 Dec 2020 13:18:36 +0200
From:   "Mirela Rabulea (OSS)" <mirela.rabulea@....nxp.com>
To:     mchehab@...nel.org, hverkuil-cisco@...all.nl, shawnguo@...nel.org,
        robh+dt@...nel.org, p.zabel@...gutronix.de
Cc:     paul.kocialkowski@...tlin.com, linux-media@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-imx@....com,
        s.hauer@...gutronix.de, aisheng.dong@....com,
        daniel.baluta@....com, robert.chiras@....com,
        laurentiu.palcu@....com, mark.rutland@....com,
        devicetree@...r.kernel.org, ezequiel@...labora.com,
        laurent.pinchart+renesas@...asonboard.com,
        niklas.soderlund+renesas@...natech.se,
        dafna.hirschfeld@...labora.com,
        Mirela Rabulea <mirela.rabulea@....com>
Subject: [PATCH v6 2/9] media: dt-bindings: Add bindings for i.MX8QXP/QM JPEG driver

From: Mirela Rabulea <mirela.rabulea@....com>

Add bindings documentation for i.MX8QXP/QM JPEG decoder & encoder driver.

Signed-off-by: Mirela Rabulea <mirela.rabulea@....com>
Reviewed-by: Rob Herring <robh@...nel.org>
---
Changes in v6:
  Reviewed-by: Rob Herring <robh@...nel.org>

 .../bindings/media/nxp,imx8-jpeg.yaml         | 84 +++++++++++++++++++
 1 file changed, 84 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/nxp,imx8-jpeg.yaml

diff --git a/Documentation/devicetree/bindings/media/nxp,imx8-jpeg.yaml b/Documentation/devicetree/bindings/media/nxp,imx8-jpeg.yaml
new file mode 100644
index 000000000000..5d13cbb5251b
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/nxp,imx8-jpeg.yaml
@@ -0,0 +1,84 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/nxp,imx8-jpeg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: i.MX8QXP/QM JPEG decoder/encoder Device Tree Bindings
+
+maintainers:
+  - Mirela Rabulea <mirela.rabulea@....com>
+
+description: |-
+  The JPEG decoder/encoder present in iMX8QXP and iMX8QM SoCs is an
+  ISO/IEC 10918-1 JPEG standard compliant decoder/encoder, for Baseline
+  and Extended Sequential DCT modes.
+
+properties:
+  compatible:
+    items:
+      - enum:
+            # JPEG decoder
+          - nxp,imx8qxp-jpgdec
+            # JPEG encoder
+          - nxp,imx8qxp-jpgenc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    description: |
+      There are 4 slots available in the IP, which the driver may use
+      If a certain slot is used, it should have an associated interrupt
+      The interrupt with index i is assumed to be for slot i
+    minItems: 1               # At least one slot is needed by the driver
+    maxItems: 4               # The IP has 4 slots available for use
+
+  power-domains:
+    description:
+      List of phandle and PM domain specifier as documented in
+      Documentation/devicetree/bindings/power/power_domain.txt
+    minItems: 2               # Wrapper and 1 slot
+    maxItems: 5               # Wrapper and 4 slots
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - power-domains
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/firmware/imx/rsrc.h>
+
+    jpegdec: jpegdec@...00000 {
+        compatible = "nxp,imx8qxp-jpgdec";
+        reg = <0x58400000 0x00050000 >;
+        interrupts = <GIC_SPI 309 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 310 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 311 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 312 IRQ_TYPE_LEVEL_HIGH>;
+        power-domains = <&pd IMX_SC_R_MJPEG_DEC_MP>,
+                        <&pd IMX_SC_R_MJPEG_DEC_S0>,
+                        <&pd IMX_SC_R_MJPEG_DEC_S1>,
+                        <&pd IMX_SC_R_MJPEG_DEC_S2>,
+                        <&pd IMX_SC_R_MJPEG_DEC_S3>;
+    };
+
+    jpegenc: jpegenc@...50000 {
+        compatible = "nxp,imx8qxp-jpgenc";
+        reg = <0x58450000 0x00050000 >;
+        interrupts = <GIC_SPI 305 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 306 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 307 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 308 IRQ_TYPE_LEVEL_HIGH>;
+        power-domains = <&pd IMX_SC_R_MJPEG_ENC_MP>,
+                        <&pd IMX_SC_R_MJPEG_ENC_S0>,
+                        <&pd IMX_SC_R_MJPEG_ENC_S1>,
+                        <&pd IMX_SC_R_MJPEG_ENC_S2>,
+                        <&pd IMX_SC_R_MJPEG_ENC_S3>;
+    };
+...
-- 
2.17.1