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Subject[PATCH v9 02/13] dt-bindings: media: nxp,imx8mq-vpu: Update the bindings for G2 support
Date
Introducing the G2 hevc video decoder requires modifications of the bindings to allow
one node per VPU.

VPUs share one hardware control block which is provided as a phandle on
a syscon.
Each node has now one reg and one interrupt.
Add a compatible for G2 hardware block: nxp,imx8mq-vpu-g2.

To be compatible with older DT the driver is still capable to use the 'ctrl'
reg-name even if it is deprecated now.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
---
version 9:
- Corrections in commit message

version 7:
- Add Rob and Philipp reviewed-by tag
- Change syscon phandle name to nxp,imx8m-vpu-ctrl (remove 'q' to be
usable for iMX8MM too)

version 5:
- This version doesn't break the backward compatibilty between kernel
and DT.

.../bindings/media/nxp,imx8mq-vpu.yaml | 53 ++++++++++++-------
1 file changed, 34 insertions(+), 19 deletions(-)

diff --git a/Documentation/devicetree/bindings/media/nxp,imx8mq-vpu.yaml b/Documentation/devicetree/bindings/media/nxp,imx8mq-vpu.yaml
index 762be3f96ce9..18e7d40a5f24 100644
--- a/Documentation/devicetree/bindings/media/nxp,imx8mq-vpu.yaml
+++ b/Documentation/devicetree/bindings/media/nxp,imx8mq-vpu.yaml
@@ -15,22 +15,18 @@ description:

properties:
compatible:
- const: nxp,imx8mq-vpu
+ oneOf:
+ - const: nxp,imx8mq-vpu
+ - const: nxp,imx8mq-vpu-g2

reg:
- maxItems: 3
-
- reg-names:
- items:
- - const: g1
- - const: g2
- - const: ctrl
+ maxItems: 1

interrupts:
- maxItems: 2
+ maxItems: 1

interrupt-names:
- items:
+ oneOf:
- const: g1
- const: g2

@@ -46,14 +42,18 @@ properties:
power-domains:
maxItems: 1

+ nxp,imx8m-vpu-ctrl:
+ description: Specifies a phandle to syscon VPU hardware control block
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+
required:
- compatible
- reg
- - reg-names
- interrupts
- interrupt-names
- clocks
- clock-names
+ - nxp,imx8m-vpu-ctrl

additionalProperties: false

@@ -62,18 +62,33 @@ examples:
#include <dt-bindings/clock/imx8mq-clock.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>

- vpu: video-codec@38300000 {
+ vpu_ctrl: syscon@38320000 {
+ compatible = "nxp,imx8mq-vpu-ctrl", "syscon";
+ reg = <0x38320000 0x10000>;
+ };
+
+ vpu_g1: video-codec@38300000 {
compatible = "nxp,imx8mq-vpu";
- reg = <0x38300000 0x10000>,
- <0x38310000 0x10000>,
- <0x38320000 0x10000>;
- reg-names = "g1", "g2", "ctrl";
- interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
- interrupt-names = "g1", "g2";
+ reg = <0x38300000 0x10000>;
+ interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "g1";
+ clocks = <&clk IMX8MQ_CLK_VPU_G1_ROOT>,
+ <&clk IMX8MQ_CLK_VPU_G2_ROOT>,
+ <&clk IMX8MQ_CLK_VPU_DEC_ROOT>;
+ clock-names = "g1", "g2", "bus";
+ power-domains = <&pgc_vpu>;
+ nxp,imx8m-vpu-ctrl = <&vpu_ctrl>;
+ };
+
+ vpu_g2: video-codec@38310000 {
+ compatible = "nxp,imx8mq-vpu-g2";
+ reg = <0x38300000 0x10000>;
+ interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "g2";
clocks = <&clk IMX8MQ_CLK_VPU_G1_ROOT>,
<&clk IMX8MQ_CLK_VPU_G2_ROOT>,
<&clk IMX8MQ_CLK_VPU_DEC_ROOT>;
clock-names = "g1", "g2", "bus";
power-domains = <&pgc_vpu>;
+ nxp,imx8m-vpu-ctrl = <&vpu_ctrl>;
};
--
2.25.1
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