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[2/3] media: dt-bindings: rockchip: Document RK3588 Video Decoder 2 bindings

Message ID 20240615015734.1612108-3-detlev.casanova@collabora.com
State Changes Requested
Headers show
Series media: rockchip: Add rkvdec2 driver | expand

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Commit Message

Detlev Casanova June 15, 2024, 1:56 a.m. UTC 
Document the Rockchip RK3588 Video Decoder 2 bindings.

Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>
---
 .../bindings/media/rockchip,vdec2.yaml        | 80 +++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/rockchip,vdec2.yaml

Comments

Rob Herring (Arm) June 15, 2024, 3:15 a.m. UTC | #1 
On Fri, 14 Jun 2024 21:56:28 -0400, Detlev Casanova wrote:
> Document the Rockchip RK3588 Video Decoder 2 bindings.
> 
> Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>
> ---
>  .../bindings/media/rockchip,vdec2.yaml        | 80 +++++++++++++++++++
>  1 file changed, 80 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/rockchip,vdec2.yaml
> 

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/media/rockchip,vdec2.example.dtb: video-codec@fdc38100: reg: [[0, 4257448192], [0, 1280]] is too long
	from schema $id: http://devicetree.org/schemas/media/rockchip,vdec2.yaml#
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/media/rockchip,vdec2.example.dtb: video-codec@fdc38100: clock-names:1: 'ahb' was expected
	from schema $id: http://devicetree.org/schemas/media/rockchip,vdec2.yaml#

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20240615015734.1612108-3-detlev.casanova@collabora.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.
Jonas Karlman June 15, 2024, 8:11 a.m. UTC | #2 
Hi Detlev,

On 2024-06-15 03:56, Detlev Casanova wrote:
> Document the Rockchip RK3588 Video Decoder 2 bindings.

Why the need for a new schema file and not just extending existing
rockchip,vdec.yaml with a new compatible and the new clock?

> 
> Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>
> ---
>  .../bindings/media/rockchip,vdec2.yaml        | 80 +++++++++++++++++++
>  1 file changed, 80 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/rockchip,vdec2.yaml
> 
> diff --git a/Documentation/devicetree/bindings/media/rockchip,vdec2.yaml b/Documentation/devicetree/bindings/media/rockchip,vdec2.yaml
> new file mode 100644
> index 000000000000..e54891b46986
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/rockchip,vdec2.yaml
> @@ -0,0 +1,80 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/rockchip,vdec2.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Rockchip Video Decoder 2 (VDec2)
> +
> +maintainers:
> +  - Heiko Stuebner <heiko@sntech.de>
> +
> +description: |-
> +  The Rockchip rk3588 has a stateless Video Decoder that can decodes H.264,
> +  HEVC, VP9 and AVS2 streams.
> +
> +properties:
> +  compatible:
> +    const: rockchip,rk3588-vdec2

I fail to see the need to call this vdec2 instead of established vdec.

Suggest this is changed to rockchip,rk3588-vdec.

> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    items:
> +      - description: The Video decoder AXI interface clock
> +      - description: The Video decoder AHB interface clock
> +      - description: The Video decoder core clock
> +      - description: The Video decoder CABAC clock
> +      - description: The Video decoder HEVC CABAC clock
> +
> +  clock-names:
> +    items:
> +      - const: axi
> +      - const: ahb
> +      - const: core
> +      - const: cabac
> +      - const: hevc_cabac
> +
> +  assigned-clocks: true
> +
> +  assigned-clock-rates: true
> +
> +  power-domains:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clocks
> +  - clock-names
> +  - power-domains
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/clock/rockchip,rk3588-cru.h>
> +    #include <dt-bindings/power/rk3588-power.h>
> +
> +    vdec2: video-codec@fdc38100 {
> +        compatible = "rockchip,rk3588-vdec2";
> +        reg = <0x0 0xfdc38100 0x0 0x500>;
> +        interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH 0>;
> +        clocks = <&cru ACLK_RKVDEC0>, <&cru HCLK_RKVDEC0>, <&cru CLK_RKVDEC0_CORE>,
> +                 <&cru CLK_RKVDEC0_CA>, <&cru CLK_RKVDEC0_HEVC_CA>;
> +        clock-names = "axi", "ahc", "core",
> +                      "cabac", "hevc_cabac";
> +        assigned-clocks = <&cru ACLK_RKVDEC0>, <&cru CLK_RKVDEC0_CORE>,
> +                          <&cru CLK_RKVDEC0_CA>, <&cru CLK_RKVDEC0_HEVC_CA>;
> +        assigned-clock-rates = <800000000>, <600000000>,
> +                               <600000000>, <1000000000>;
> +        power-domains = <&power RK3588_PD_RKVDEC0>;

iommus and resets seem to be missing?

Regards,
Jonas

> +    };
> +
> +...
Detlev Casanova June 15, 2024, 7:49 p.m. UTC | #3 
On Saturday, June 15, 2024 4:11:00 A.M. EDT Jonas Karlman wrote:
> Hi Detlev,
> 
> On 2024-06-15 03:56, Detlev Casanova wrote:
> > Document the Rockchip RK3588 Video Decoder 2 bindings.
> 
> Why the need for a new schema file and not just extending existing
> rockchip,vdec.yaml with a new compatible and the new clock?

Yes, that can work as well indeed. I wasn't sure if different drivers could 
share a schema file.

> > Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>
> > ---
> > 
> >  .../bindings/media/rockchip,vdec2.yaml        | 80 +++++++++++++++++++
> >  1 file changed, 80 insertions(+)
> >  create mode 100644
> >  Documentation/devicetree/bindings/media/rockchip,vdec2.yaml> 
> > diff --git a/Documentation/devicetree/bindings/media/rockchip,vdec2.yaml
> > b/Documentation/devicetree/bindings/media/rockchip,vdec2.yaml new file
> > mode 100644
> > index 000000000000..e54891b46986
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/media/rockchip,vdec2.yaml
> > @@ -0,0 +1,80 @@
> > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/media/rockchip,vdec2.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Rockchip Video Decoder 2 (VDec2)
> > +
> > +maintainers:
> > +  - Heiko Stuebner <heiko@sntech.de>
> > +
> > +description: |-
> > +  The Rockchip rk3588 has a stateless Video Decoder that can decodes
> > H.264, +  HEVC, VP9 and AVS2 streams.
> > +
> > +properties:
> > +  compatible:
> > +    const: rockchip,rk3588-vdec2
> 
> I fail to see the need to call this vdec2 instead of established vdec.
> 
> Suggest this is changed to rockchip,rk3588-vdec.

Wouldn't that be misleading if rockchip,rk3399-vdec and rockchip,rk3588-vdec 
use different drivers ?

> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  interrupts:
> > +    maxItems: 1
> > +
> > +  clocks:
> > +    items:
> > +      - description: The Video decoder AXI interface clock
> > +      - description: The Video decoder AHB interface clock
> > +      - description: The Video decoder core clock
> > +      - description: The Video decoder CABAC clock
> > +      - description: The Video decoder HEVC CABAC clock
> > +
> > +  clock-names:
> > +    items:
> > +      - const: axi
> > +      - const: ahb
> > +      - const: core
> > +      - const: cabac
> > +      - const: hevc_cabac
> > +
> > +  assigned-clocks: true
> > +
> > +  assigned-clock-rates: true
> > +
> > +  power-domains:
> > +    maxItems: 1
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - interrupts
> > +  - clocks
> > +  - clock-names
> > +  - power-domains
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > +    #include <dt-bindings/clock/rockchip,rk3588-cru.h>
> > +    #include <dt-bindings/power/rk3588-power.h>
> > +
> > +    vdec2: video-codec@fdc38100 {
> > +        compatible = "rockchip,rk3588-vdec2";
> > +        reg = <0x0 0xfdc38100 0x0 0x500>;
> > +        interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH 0>;
> > +        clocks = <&cru ACLK_RKVDEC0>, <&cru HCLK_RKVDEC0>, <&cru
> > CLK_RKVDEC0_CORE>, +                 <&cru CLK_RKVDEC0_CA>, <&cru
> > CLK_RKVDEC0_HEVC_CA>; +        clock-names = "axi", "ahc", "core",
> > +                      "cabac", "hevc_cabac";
> > +        assigned-clocks = <&cru ACLK_RKVDEC0>, <&cru CLK_RKVDEC0_CORE>,
> > +                          <&cru CLK_RKVDEC0_CA>, <&cru
> > CLK_RKVDEC0_HEVC_CA>; +        assigned-clock-rates = <800000000>,
> > <600000000>,
> > +                               <600000000>, <1000000000>;
> > +        power-domains = <&power RK3588_PD_RKVDEC0>;
> 
> iommus and resets seem to be missing?

Indeed, even if their are not used yet, I'd make sens to already have them 
here to stabilize the device tree, right ?

> Regards,
> Jonas
> 
> > +    };
> > +
> > +...
Heiko Stübner June 15, 2024, 10:58 p.m. UTC | #4 
Am Samstag, 15. Juni 2024, 21:49:21 CEST schrieb Detlev Casanova:
> On Saturday, June 15, 2024 4:11:00 A.M. EDT Jonas Karlman wrote:
> > Hi Detlev,
> > 
> > On 2024-06-15 03:56, Detlev Casanova wrote:
> > > Document the Rockchip RK3588 Video Decoder 2 bindings.
> > 
> > Why the need for a new schema file and not just extending existing
> > rockchip,vdec.yaml with a new compatible and the new clock?
> 
> Yes, that can work as well indeed. I wasn't sure if different drivers could 
> share a schema file.
> 
> > > Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>
> > > ---
> > > 
> > >  .../bindings/media/rockchip,vdec2.yaml        | 80 +++++++++++++++++++
> > >  1 file changed, 80 insertions(+)
> > >  create mode 100644
> > >  Documentation/devicetree/bindings/media/rockchip,vdec2.yaml> 
> > > diff --git a/Documentation/devicetree/bindings/media/rockchip,vdec2.yaml
> > > b/Documentation/devicetree/bindings/media/rockchip,vdec2.yaml new file
> > > mode 100644
> > > index 000000000000..e54891b46986
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/media/rockchip,vdec2.yaml
> > > @@ -0,0 +1,80 @@
> > > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > > +%YAML 1.2
> > > +---
> > > +$id: http://devicetree.org/schemas/media/rockchip,vdec2.yaml#
> > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > +
> > > +title: Rockchip Video Decoder 2 (VDec2)
> > > +
> > > +maintainers:
> > > +  - Heiko Stuebner <heiko@sntech.de>
> > > +
> > > +description: |-
> > > +  The Rockchip rk3588 has a stateless Video Decoder that can decodes
> > > H.264, +  HEVC, VP9 and AVS2 streams.
> > > +
> > > +properties:
> > > +  compatible:
> > > +    const: rockchip,rk3588-vdec2
> > 
> > I fail to see the need to call this vdec2 instead of established vdec.
> > 
> > Suggest this is changed to rockchip,rk3588-vdec.
> 
> Wouldn't that be misleading if rockchip,rk3399-vdec and rockchip,rk3588-vdec 
> use different drivers ?

Devicetrees and their binding don't care about how operating system
implement things in drivers. 

While they come with the Linux-kernel most of the time, they are pretty
much independent from implementation details.


> > > +
> > > +  reg:
> > > +    maxItems: 1
> > > +
> > > +  interrupts:
> > > +    maxItems: 1
> > > +
> > > +  clocks:
> > > +    items:
> > > +      - description: The Video decoder AXI interface clock
> > > +      - description: The Video decoder AHB interface clock
> > > +      - description: The Video decoder core clock
> > > +      - description: The Video decoder CABAC clock
> > > +      - description: The Video decoder HEVC CABAC clock
> > > +
> > > +  clock-names:
> > > +    items:
> > > +      - const: axi
> > > +      - const: ahb
> > > +      - const: core
> > > +      - const: cabac
> > > +      - const: hevc_cabac
> > > +
> > > +  assigned-clocks: true
> > > +
> > > +  assigned-clock-rates: true
> > > +
> > > +  power-domains:
> > > +    maxItems: 1
> > > +
> > > +required:
> > > +  - compatible
> > > +  - reg
> > > +  - interrupts
> > > +  - clocks
> > > +  - clock-names
> > > +  - power-domains
> > > +
> > > +additionalProperties: false
> > > +
> > > +examples:
> > > +  - |
> > > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > > +    #include <dt-bindings/clock/rockchip,rk3588-cru.h>
> > > +    #include <dt-bindings/power/rk3588-power.h>
> > > +
> > > +    vdec2: video-codec@fdc38100 {
> > > +        compatible = "rockchip,rk3588-vdec2";
> > > +        reg = <0x0 0xfdc38100 0x0 0x500>;
> > > +        interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH 0>;
> > > +        clocks = <&cru ACLK_RKVDEC0>, <&cru HCLK_RKVDEC0>, <&cru
> > > CLK_RKVDEC0_CORE>, +                 <&cru CLK_RKVDEC0_CA>, <&cru
> > > CLK_RKVDEC0_HEVC_CA>; +        clock-names = "axi", "ahc", "core",
> > > +                      "cabac", "hevc_cabac";
> > > +        assigned-clocks = <&cru ACLK_RKVDEC0>, <&cru CLK_RKVDEC0_CORE>,
> > > +                          <&cru CLK_RKVDEC0_CA>, <&cru
> > > CLK_RKVDEC0_HEVC_CA>; +        assigned-clock-rates = <800000000>,
> > > <600000000>,
> > > +                               <600000000>, <1000000000>;
> > > +        power-domains = <&power RK3588_PD_RKVDEC0>;
> > 
> > iommus and resets seem to be missing?
> 
> Indeed, even if their are not used yet, I'd make sens to already have them 
> here to stabilize the device tree, right ?

correct. DT only ever describes the hardware. And while it is possible
to extend bindings later, having the obvious things in it from the start
makes a lot of sense.
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/media/rockchip,vdec2.yaml b/Documentation/devicetree/bindings/media/rockchip,vdec2.yaml
new file mode 100644
index 000000000000..e54891b46986
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/rockchip,vdec2.yaml
@@ -0,0 +1,80 @@ 
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/rockchip,vdec2.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip Video Decoder 2 (VDec2)
+
+maintainers:
+  - Heiko Stuebner <heiko@sntech.de>
+
+description: |-
+  The Rockchip rk3588 has a stateless Video Decoder that can decodes H.264,
+  HEVC, VP9 and AVS2 streams.
+
+properties:
+  compatible:
+    const: rockchip,rk3588-vdec2
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: The Video decoder AXI interface clock
+      - description: The Video decoder AHB interface clock
+      - description: The Video decoder core clock
+      - description: The Video decoder CABAC clock
+      - description: The Video decoder HEVC CABAC clock
+
+  clock-names:
+    items:
+      - const: axi
+      - const: ahb
+      - const: core
+      - const: cabac
+      - const: hevc_cabac
+
+  assigned-clocks: true
+
+  assigned-clock-rates: true
+
+  power-domains:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - power-domains
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/rockchip,rk3588-cru.h>
+    #include <dt-bindings/power/rk3588-power.h>
+
+    vdec2: video-codec@fdc38100 {
+        compatible = "rockchip,rk3588-vdec2";
+        reg = <0x0 0xfdc38100 0x0 0x500>;
+        interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH 0>;
+        clocks = <&cru ACLK_RKVDEC0>, <&cru HCLK_RKVDEC0>, <&cru CLK_RKVDEC0_CORE>,
+                 <&cru CLK_RKVDEC0_CA>, <&cru CLK_RKVDEC0_HEVC_CA>;
+        clock-names = "axi", "ahc", "core",
+                      "cabac", "hevc_cabac";
+        assigned-clocks = <&cru ACLK_RKVDEC0>, <&cru CLK_RKVDEC0_CORE>,
+                          <&cru CLK_RKVDEC0_CA>, <&cru CLK_RKVDEC0_HEVC_CA>;
+        assigned-clock-rates = <800000000>, <600000000>,
+                               <600000000>, <1000000000>;
+        power-domains = <&power RK3588_PD_RKVDEC0>;
+    };
+
+...