linux-kernel - [PATCH v6 1/3] media: dt-bindings: Add Imagination E5010 JPEG Encoder

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Message-ID: <20240228141140.3530612-2-devarsht@ti.com>
Date: Wed, 28 Feb 2024 19:41:38 +0530
From: Devarsh Thakkar <devarsht@...com>
To: <mchehab@...nel.org>, <robh@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <hverkuil-cisco@...all.nl>, <linux-media@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <benjamin.gaignard@...labora.com>, <sebastian.fricke@...labora.com>
CC: <laurent.pinchart@...asonboard.com>, <praneeth@...com>, <nm@...com>,
        <vigneshr@...com>, <a-bhatia1@...com>, <j-luthra@...com>,
        <b-brnich@...com>, <detheridge@...com>, <p-mantena@...com>,
        <vijayp@...com>, <devarsht@...com>, <andrzej.p@...labora.com>,
        <nicolas@...fresne.ca>, <afd@...com>, <milkfafa@...il.com>
Subject: [PATCH v6 1/3] media: dt-bindings: Add Imagination E5010 JPEG Encoder

Add dt-bindings for Imagination E5010 JPEG Encoder [1] which is implemented
as stateful V4L2 M2M driver.

The device supports baseline encoding with two different quantization
tables and compression ratio as demanded.

Minimum resolution supported is 64x64 and Maximum resolution supported is
8192x8192.

[1]:  AM62A TRM (Section 7.6 is for JPEG Encoder)
Link: https://www.ti.com/lit/pdf/spruj16

Co-developed-by: David Huang <d-huang@...com>
Signed-off-by: David Huang <d-huang@...com>
Signed-off-by: Devarsh Thakkar <devarsht@...com>
Reviewed-by: Rob Herring <robh@...nel.org>
---
V2: No change
V3:
- Add vendor specific compatible
- Update reg names
- Update clocks to 1
- Fix dts example with proper naming
V4:
 - Use ti-specific compatible ti,am62a-jpeg-enc as secondary one
 - Update commit message and title
 - Remove clock-names as only single clock
V5:
 - Add Reviewed-By tag
V6:
 - No change

 .../bindings/media/img,e5010-jpeg-enc.yaml    | 75 +++++++++++++++++++
 MAINTAINERS                                   |  5 ++
 2 files changed, 80 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/img,e5010-jpeg-enc.yaml

diff --git a/Documentation/devicetree/bindings/media/img,e5010-jpeg-enc.yaml b/Documentation/devicetree/bindings/media/img,e5010-jpeg-enc.yaml
new file mode 100644
index 000000000000..085020cb9e61
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/img,e5010-jpeg-enc.yaml
@@ -0,0 +1,75 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/img,e5010-jpeg-enc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Imagination E5010 JPEG Encoder
+
+maintainers:
+  - Devarsh Thakkar <devarsht@...com>
+
+description: |
+  The E5010 is a JPEG encoder from Imagination Technologies implemented on
+  TI's AM62A SoC. It is capable of real time encoding of YUV420 and YUV422
+  inputs to JPEG and M-JPEG. It supports baseline JPEG Encoding up to
+  8Kx8K resolution.
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - const: ti,am62a-jpeg-enc
+          - const: img,e5010-jpeg-enc
+      - const: img,e5010-jpeg-enc
+
+  reg:
+    items:
+      - description: The E5010 core register region
+      - description: The E5010 mmu register region
+
+  reg-names:
+    items:
+      - const: core
+      - const: mmu
+
+  power-domains:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - interrupts
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/soc/ti,sci_pm_domain.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    soc {
+      #address-cells = <2>;
+      #size-cells = <2>;
+      jpeg-encoder@...0000 {
+          compatible = "img,e5010-jpeg-enc";
+          reg = <0x00 0xfd20000 0x00 0x100>,
+                <0x00 0xfd20200 0x00 0x200>;
+          reg-names = "core", "mmu";
+          clocks = <&k3_clks 201 0>;
+          power-domains = <&k3_pds 201 TI_SCI_PD_EXCLUSIVE>;
+          interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
+      };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index e1475ca38ff2..6b34ee8d92b5 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10572,6 +10572,11 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/auxdisplay/img,ascii-lcd.yaml
 F:	drivers/auxdisplay/img-ascii-lcd.c
 
+IMGTEC JPEG ENCODER DRIVER
+M:	Devarsh Thakkar <devarsht@...com>
+S:	Supported
+F:	Documentation/devicetree/bindings/media/img,e5010-jpeg-enc.yaml
+
 IMGTEC IR DECODER DRIVER
 S:	Orphan
 F:	drivers/media/rc/img-ir/
-- 
2.39.1