linux-kernel - Re: [PATCH V4 07/11] arm64: dts: imx8mq: Enable both G1 and G2 VPU's with vpu-blk-ctrl

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Message-ID: <YfBJxmgwLGbVqGba@eze-laptop>
Date:   Tue, 25 Jan 2022 16:04:38 -0300
From:   Ezequiel Garcia <ezequiel@...guardiasur.com.ar>
To:     Adam Ford <aford173@...il.com>
Cc:     linux-media@...r.kernel.org, aford@...conembedded.com,
        cphealy@...il.com, kernel test robot <lkp@...el.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Lucas Stach <l.stach@...gutronix.de>,
        linux-rockchip@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-staging@...ts.linux.dev
Subject: Re: [PATCH V4 07/11] arm64: dts: imx8mq: Enable both G1 and G2 VPU's
 with vpu-blk-ctrl

On Tue, Jan 25, 2022 at 11:11:24AM -0600, Adam Ford wrote:
> With the Hantro G1 and G2 now setup to run independently, update
> the device tree to allow both to operate.  This requires the
> vpu-blk-ctrl node to be configured.  Since vpu-blk-ctrl needs
> certain clock enabled to handle the gating of the G1 and G2
> fuses, the clock-parents and clock-rates for the various VPU's
> to be moved into the pgc_vpu because they cannot get re-parented
> once enabled, and the pgc_vpu is the highest in the chain.
> 
> Signed-off-by: Adam Ford <aford173@...il.com>
> Reported-by: kernel test robot <lkp@...el.com>

It doesn't seem correct to have the Reported-by on this commit.

Thanks,
Ezequiel

> Reviewed-by: Ezequiel Garcia <ezequiel@...guardiasur.com.ar>
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
> index 2df2510d0118..549b2440f55d 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
> @@ -737,7 +737,21 @@ pgc_gpu: power-domain@5 {
>  					pgc_vpu: power-domain@6 {
>  						#power-domain-cells = <0>;
>  						reg = <IMX8M_POWER_DOMAIN_VPU>;
> -						clocks = <&clk IMX8MQ_CLK_VPU_DEC_ROOT>;
> +						clocks = <&clk IMX8MQ_CLK_VPU_DEC_ROOT>,
> +							 <&clk IMX8MQ_CLK_VPU_G1_ROOT>,
> +							 <&clk IMX8MQ_CLK_VPU_G2_ROOT>;
> +						assigned-clocks = <&clk IMX8MQ_CLK_VPU_G1>,
> +								  <&clk IMX8MQ_CLK_VPU_G2>,
> +								  <&clk IMX8MQ_CLK_VPU_BUS>,
> +								  <&clk IMX8MQ_VPU_PLL_BYPASS>;
> +						assigned-clock-parents = <&clk IMX8MQ_VPU_PLL_OUT>,
> +									 <&clk IMX8MQ_VPU_PLL_OUT>,
> +									 <&clk IMX8MQ_SYS1_PLL_800M>,
> +									 <&clk IMX8MQ_VPU_PLL>;
> +						assigned-clock-rates = <600000000>,
> +								       <600000000>,
> +								       <800000000>,
> +								       <0>;
>  					};
>  
>  					pgc_disp: power-domain@7 {
> @@ -1457,30 +1471,31 @@ usb3_phy1: usb-phy@...f0040 {
>  			status = "disabled";
>  		};
>  
> -		vpu: video-codec@...00000 {
> -			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";
> +		vpu_g1: video-codec@...00000 {
> +			compatible = "nxp,imx8mq-vpu-g1";
> +			reg = <0x38300000 0x10000>;
> +			interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&clk IMX8MQ_CLK_VPU_G1_ROOT>;
> +			power-domains = <&vpu_blk_ctrl IMX8MQ_VPUBLK_PD_G1>;
> +		};
> +
> +		vpu_g2: video-codec@...10000 {
> +			compatible = "nxp,imx8mq-vpu-g2";
> +			reg = <0x38310000 0x10000>;
> +			interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&clk IMX8MQ_CLK_VPU_G2_ROOT>;
> +			power-domains = <&vpu_blk_ctrl IMX8MQ_VPUBLK_PD_G2>;
> +		};
> +
> +		vpu_blk_ctrl: blk-ctrl@...20000 {
> +			compatible = "fsl,imx8mq-vpu-blk-ctrl";
> +			reg = <0x38320000 0x100>;
> +			power-domains = <&pgc_vpu>, <&pgc_vpu>, <&pgc_vpu>;
> +			power-domain-names = "bus", "g1", "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";
> -			assigned-clocks = <&clk IMX8MQ_CLK_VPU_G1>,
> -					  <&clk IMX8MQ_CLK_VPU_G2>,
> -					  <&clk IMX8MQ_CLK_VPU_BUS>,
> -					  <&clk IMX8MQ_VPU_PLL_BYPASS>;
> -			assigned-clock-parents = <&clk IMX8MQ_VPU_PLL_OUT>,
> -						 <&clk IMX8MQ_VPU_PLL_OUT>,
> -						 <&clk IMX8MQ_SYS1_PLL_800M>,
> -						 <&clk IMX8MQ_VPU_PLL>;
> -			assigned-clock-rates = <600000000>, <600000000>,
> -					       <800000000>, <0>;
> -			power-domains = <&pgc_vpu>;
> +				 <&clk IMX8MQ_CLK_VPU_G2_ROOT>;
> +			clock-names = "g1", "g2";
> +			#power-domain-cells = <1>;
>  		};
>  
>  		pcie0: pcie@...00000 {
> -- 
> 2.32.0
>