linux-kernel - Re: [Patch 4/6] dt-bindings: media: ti-vpe: Document VPE driver

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Date:   Tue, 17 Oct 2017 16:00:51 -0500
From:   Rob Herring <robh@...nel.org>
To:     Benoit Parrot <bparrot@...com>
Cc:     Tony Lindgren <tony@...mide.com>, Tero Kristo <t-kristo@...com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-omap@...r.kernel.org, linux-media@...r.kernel.org
Subject: Re: [Patch 4/6] dt-bindings: media: ti-vpe: Document VPE driver

On Thu, Oct 12, 2017 at 02:27:17PM -0500, Benoit Parrot wrote:
> Device Tree bindings for the Video Processing Engine (VPE) driver.
> 
> Signed-off-by: Benoit Parrot <bparrot@...com>
> ---
>  Documentation/devicetree/bindings/media/ti-vpe.txt | 41 ++++++++++++++++++++++
>  1 file changed, 41 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/ti-vpe.txt
> 
> diff --git a/Documentation/devicetree/bindings/media/ti-vpe.txt b/Documentation/devicetree/bindings/media/ti-vpe.txt
> new file mode 100644
> index 000000000000..c2ef93d08417
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/ti-vpe.txt
> @@ -0,0 +1,41 @@
> +Texas Instruments DRA7x VIDEO PROCESSING ENGINE (VPE)
> +------------------------------------------------------
> +
> +The Video Processing Engine (VPE) is a key component for image post
> +processing applications. VPE consist of a single memory to memory
> +path which can perform chroma up/down sampling, deinterlacing,
> +scaling and color space conversion.
> +
> +Required properties:
> +- compatible: must be "ti,vpe"

Needs SoC specific compatibles.

> +- reg:	physical base address and length of the registers set for the 8
> +	memory regions required;
> +- reg-names: name associated with the memory regions described is <reg>;
> +- interrupts: should contain IRQ line for VPE;
> +
> +Example:
> +	vpe {
> +		compatible = "ti,vpe";
> +		ti,hwmods = "vpe";
> +		clocks = <&dpll_core_h23x2_ck>;
> +		clock-names = "fck";
> +		reg =	<0x489d0000 0x120>,
> +			<0x489d0300 0x20>,
> +			<0x489d0400 0x20>,
> +			<0x489d0500 0x20>,
> +			<0x489d0600 0x3c>,
> +			<0x489d0700 0x80>,

Is there other stuff between these regions?

> +			<0x489d5700 0x18>,
> +			<0x489dd000 0x400>;
> +		reg-names =	"vpe_top",
> +				"vpe_chr_us0",
> +				"vpe_chr_us1",
> +				"vpe_chr_us2",
> +				"vpe_dei",
> +				"sc",
> +				"csc",
> +				"vpdma";
> +		interrupts = <GIC_SPI 354 IRQ_TYPE_LEVEL_HIGH>;

> +		#address-cells = <1>;
> +		#size-cells = <0>;

These aren't needed.

> +	};
> -- 
> 2.9.0
>