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Message-Id: <7cd02157f9a9cc7a773bd02137a92a04077638e5.1623054584.git.ming.qian@nxp.com>
Date: Mon, 7 Jun 2021 16:42:48 +0800
From: Ming Qian <ming.qian@....com>
To: mchehab@...nel.org, shawnguo@...nel.org, robh+dt@...nel.org,
s.hauer@...gutronix.de
Cc: hverkuil-cisco@...all.nl, kernel@...gutronix.de,
festevam@...il.com, linux-imx@....com, aisheng.dong@....com,
linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v2 01/13] dt-bindings: media: imx8q: add imx video codec bindings
Add devicetree binding documentation for IMX8Q Video Processing Unit IP
Signed-off-by: Ming Qian <ming.qian@....com>
Signed-off-by: Shijie Qin <shijie.qin@....com>
Signed-off-by: Zhou Peng <eagle.zhou@....com>
---
.../bindings/media/nxp,imx8q-vpu.yaml | 198 ++++++++++++++++++
1 file changed, 198 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/nxp,imx8q-vpu.yaml
diff --git a/Documentation/devicetree/bindings/media/nxp,imx8q-vpu.yaml b/Documentation/devicetree/bindings/media/nxp,imx8q-vpu.yaml
new file mode 100644
index 000000000000..058ca69c107a
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/nxp,imx8q-vpu.yaml
@@ -0,0 +1,198 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/nxp,imx8q-vpu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX8Q video encode and decode accelerators
+
+maintainers:
+ - Ming Qian <ming.qian@....com>
+ - Shijie Qin <shijie.qin@....com>
+
+description: |-
+ The Amphion MXC video encoder(Windsor) and decoder(Malone) accelerators present
+ on NXP i.MX8Q SoCs.
+
+allOf:
+ - $ref: /schemas/simple-bus.yaml#
+
+properties:
+ $nodename:
+ pattern: "^vpu-bus@[0-9a-f]+$"
+
+ compatible:
+ contains:
+ items:
+ - enum:
+ - nxp,imx8qm-vpu
+ - nxp,imx8qxp-vpu
+
+ reg:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ memory-region:
+ description:
+ Phandle to a node describing reserved memory used by VPU.
+ (see bindings/reserved-memory/reserved-memory.txt)
+
+ mailbox:
+ description:
+ Each vpu encoder or decoder correspond a MU, which used for communication
+ between driver and firmware. Implement via mailbox on driver.
+ (see bindings/mailbox/fsl,mu.yaml)
+
+patternProperties:
+ "^vpu_[en, de]coder@[0-9a-f]+$":
+ type: object
+ description:
+ Each core correspond a decoder or encoder, need to configure them
+ separately. NXP i.MX8QM SoC has one decoder and two encoder, i.MX8QXP SoC
+ has one decoder and one encoder.
+
+ properties:
+ compatible:
+ oneOf:
+ - const: nxp,imx8q-vpu-decoder
+ - const: nxp,imx8q-vpu-encoder
+
+ reg:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ mbox-names:
+ items:
+ - const: tx0
+ - const: tx1
+ - const: rx
+
+ mboxes:
+ description:
+ List of phandle of 2 MU channels for tx, 1 MU channel for rx.
+
+ boot-region:
+ description:
+ Phandle to a node describing reserved memory used by firmware
+ loading.
+
+ rpc-region:
+ description:
+ Phandle to a node describing reserved memory used by RPC shared
+ memory between firmware and driver.
+
+ print-offset:
+ description:
+ The memory offset from RPC address, used by reserve firmware log.
+
+ id:
+ description: Index of vpu core.
+
+ required:
+ - compatible
+ - reg
+ - power-domains
+ - mbox-names
+ - mboxes
+ - boot-region
+ - rpc-region
+ - print-offset
+ - id
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - power-domains
+ - memory-region
+
+additionalProperties: true
+
+examples:
+ # Device node example for i.MX8QM platform:
+ - |
+ #include <dt-bindings/firmware/imx/rsrc.h>
+
+ vpu: vpu-bus@...00000 {
+ compatible = "nxp,imx8qm-vpu", "simple-bus";
+ ranges = <0x2c000000 0x2c000000 0x2000000>;
+ reg = <0x2c000000 0x1000000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ power-domains = <&pd IMX_SC_R_VPU>;
+ memory-region = <&vpu_reserved>;
+
+ mu_m0: mailbox@...00000 {
+ compatible = "fsl,imx6sx-mu";
+ reg = <0x2d000000 0x20000>;
+ interrupts = <0 472 4>;
+ #mbox-cells = <2>;
+ power-domains = <&pd IMX_SC_R_VPU_MU_0>;
+ };
+
+ mu1_m0: mailbox@...20000 {
+ compatible = "fsl,imx6sx-mu";
+ reg = <0x2d020000 0x20000>;
+ interrupts = <0 473 4>;
+ #mbox-cells = <2>;
+ power-domains = <&pd IMX_SC_R_VPU_MU_1>;
+ };
+
+ mu2_m0: mailbox@...40000 {
+ compatible = "fsl,imx6sx-mu";
+ reg = <0x2d040000 0x20000>;
+ interrupts = <0 474 4>;
+ #mbox-cells = <2>;
+ power-domains = <&pd IMX_SC_R_VPU_MU_2>;
+ };
+
+ vpu_core0: vpu_decoder@...80000 {
+ compatible = "nxp,imx8q-vpu-decoder";
+ reg = <0x2d080000 0x10000>;
+ power-domains = <&pd IMX_SC_R_VPU_DEC_0>;
+ mbox-names = "tx0", "tx1", "rx";
+ mboxes = <&mu_m0 0 0
+ &mu_m0 0 1
+ &mu_m0 1 0>;
+ boot-region = <&decoder_boot>;
+ rpc-region = <&decoder_rpc>;
+ print-offset = <0x180000>;
+ id = <0>;
+ };
+
+ vpu_core1: vpu_encoder@...90000 {
+ compatible = "nxp,imx8q-vpu-encoder";
+ reg = <0x2d090000 0x10000>;
+ power-domains = <&pd IMX_SC_R_VPU_ENC_0>;
+ mbox-names = "tx0", "tx1", "rx";
+ mboxes = <&mu1_m0 0 0
+ &mu1_m0 0 1
+ &mu1_m0 1 0>;
+ boot-region = <&encoder1_boot>;
+ rpc-region = <&encoder1_rpc>;
+ print-offset = <0x80000>;
+ id = <1>;
+ };
+
+ vpu_core2: vpu_encoder@...a0000 {
+ reg = <0x2d0a0000 0x10000>;
+ compatible = "nxp,imx8q-vpu-encoder";
+ power-domains = <&pd IMX_SC_R_VPU_ENC_1>;
+ mbox-names = "tx0", "tx1", "rx";
+ mboxes = <&mu2_m0 0 0
+ &mu2_m0 0 1
+ &mu2_m0 1 0>;
+ boot-region = <&encoder2_boot>;
+ rpc-region = <&encoder2_rpc>;
+ print-offset = <0x80000>;
+ id = <2>;
+ };
+ };
+
+...
--
2.31.1
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