linux-kernel - Re: [PATCH] arm64: dts: imx8-ss-img: Assign slot for imx jpeg encoder/decoder

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Date:   Tue, 19 Sep 2023 14:26:03 +0200
From:   Shawn Guo <shawnguo@...nel.org>
To:     Ming Qian <ming.qian@....com>
Cc:     mirela.rabulea@....nxp.com, robh+dt@...nel.org,
        s.hauer@...gutronix.de, kernel@...gutronix.de, linux-imx@....com,
        linux-media@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: imx8-ss-img: Assign slot for imx jpeg
 encoder/decoder

On Thu, Jun 01, 2023 at 10:38:01AM +0800, Ming Qian wrote:
> assign a single slot,
> configure interrupt and power domain only for 1 slot,
> not for the all 4 slots.
> 
> Signed-off-by: Ming Qian <ming.qian@....com>
> ---
>  .../arm64/boot/dts/freescale/imx8-ss-img.dtsi | 22 +++++--------------
>  1 file changed, 6 insertions(+), 16 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8-ss-img.dtsi b/arch/arm64/boot/dts/freescale/imx8-ss-img.dtsi
> index a90654155a88..176dcce24b64 100644
> --- a/arch/arm64/boot/dts/freescale/imx8-ss-img.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8-ss-img.dtsi
> @@ -18,10 +18,7 @@ img_ipg_clk: clock-img-ipg {
>  
>  	jpegdec: jpegdec@...00000 {
>  		reg = <0x58400000 0x00050000>;
> -		interrupts = <GIC_SPI 309 IRQ_TYPE_LEVEL_HIGH>,
> -			     <GIC_SPI 310 IRQ_TYPE_LEVEL_HIGH>,
> -			     <GIC_SPI 311 IRQ_TYPE_LEVEL_HIGH>,
> -			     <GIC_SPI 312 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupts = <GIC_SPI 309 IRQ_TYPE_LEVEL_HIGH>;
>  		clocks = <&img_jpeg_dec_lpcg IMX_LPCG_CLK_0>,
>  			 <&img_jpeg_dec_lpcg IMX_LPCG_CLK_4>;
>  		clock-names = "per", "ipg";
> @@ -29,18 +26,13 @@ jpegdec: jpegdec@...00000 {
>  				  <&img_jpeg_dec_lpcg IMX_LPCG_CLK_4>;
>  		assigned-clock-rates = <200000000>, <200000000>;
>  		power-domains = <&pd IMX_SC_R_MJPEG_DEC_MP>,
> -				<&pd IMX_SC_R_MJPEG_DEC_S0>,
> -				<&pd IMX_SC_R_MJPEG_DEC_S1>,
> -				<&pd IMX_SC_R_MJPEG_DEC_S2>,
> -				<&pd IMX_SC_R_MJPEG_DEC_S3>;
> +				<&pd IMX_SC_R_MJPEG_DEC_S0>;
> +		slot = <0>;

I do not find this 'slot' property in bindings doc.

Shawn

>  	};
>  
>  	jpegenc: jpegenc@...50000 {
>  		reg = <0x58450000 0x00050000>;
> -		interrupts = <GIC_SPI 305 IRQ_TYPE_LEVEL_HIGH>,
> -			     <GIC_SPI 306 IRQ_TYPE_LEVEL_HIGH>,
> -			     <GIC_SPI 307 IRQ_TYPE_LEVEL_HIGH>,
> -			     <GIC_SPI 308 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupts = <GIC_SPI 305 IRQ_TYPE_LEVEL_HIGH>;
>  		clocks = <&img_jpeg_enc_lpcg IMX_LPCG_CLK_0>,
>  			 <&img_jpeg_enc_lpcg IMX_LPCG_CLK_4>;
>  		clock-names = "per", "ipg";
> @@ -48,10 +40,8 @@ jpegenc: jpegenc@...50000 {
>  				  <&img_jpeg_enc_lpcg IMX_LPCG_CLK_4>;
>  		assigned-clock-rates = <200000000>, <200000000>;
>  		power-domains = <&pd IMX_SC_R_MJPEG_ENC_MP>,
> -				<&pd IMX_SC_R_MJPEG_ENC_S0>,
> -				<&pd IMX_SC_R_MJPEG_ENC_S1>,
> -				<&pd IMX_SC_R_MJPEG_ENC_S2>,
> -				<&pd IMX_SC_R_MJPEG_ENC_S3>;
> +				<&pd IMX_SC_R_MJPEG_ENC_S0>;
> +		slot = <0>;
>  	};
>  
>  	img_jpeg_dec_lpcg: clock-controller@...d0000 {
> -- 
> 2.38.1
>