linux-kernel - Re: [PATCH v5 8/9] arm64: dts: rockchip: add isp0 node for rk3399

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Date:   Sat, 26 Sep 2020 13:00:05 +0000
From:   Tomasz Figa <tfiga@...omium.org>
To:     Helen Koike <helen.koike@...labora.com>
Cc:     devicetree@...r.kernel.org, linux-media@...r.kernel.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devel@...verdev.osuosl.org, robh+dt@...nel.org, heiko@...ech.de,
        hverkuil-cisco@...all.nl, kernel@...labora.com,
        dafna.hirschfeld@...labora.com, ezequiel@...labora.com,
        mark.rutland@....com, karthik.poduval@...il.com, jbx6244@...il.com,
        eddie.cai.linux@...il.com, zhengsq@...k-chips.com,
        robin.murphy@....com
Subject: Re: [PATCH v5 8/9] arm64: dts: rockchip: add isp0 node for rk3399

Hi Helen,

On Wed, Jul 22, 2020 at 12:55:32PM -0300, Helen Koike wrote:
> From: Shunqian Zheng <zhengsq@...k-chips.com>
> 
> RK3399 has two ISPs, but only isp0 was tested.
> Add isp0 node in rk3399 dtsi
> 
> Verified with:
> make ARCH=arm64 dtbs_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/media/rockchip-isp1.yaml
> 
> Signed-off-by: Shunqian Zheng <zhengsq@...k-chips.com>
> Signed-off-by: Jacob Chen <jacob2.chen@...k-chips.com>
> Signed-off-by: Helen Koike <helen.koike@...labora.com>
> 
> ---
> 
> V4:
> - update clock names
> 
> V3:
> - clean up clocks
> 
> V2:
> - re-order power-domains property
> 
> V1:
> This patch was originally part of this patchset:
> 
>     https://patchwork.kernel.org/patch/10267431/
> 
> The only difference is:
> - add phy properties
> - add ports
> ---
>  arch/arm64/boot/dts/rockchip/rk3399.dtsi | 25 ++++++++++++++++++++++++
>  1 file changed, 25 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
> index dba9641947a3a..ed8ba75dbbce8 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
> +++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
> @@ -1721,6 +1721,31 @@ vopb_mmu: iommu@...03f00 {
>  		status = "disabled";
>  	};
>  
> +	isp0: isp0@...10000 {
> +		compatible = "rockchip,rk3399-cif-isp";
> +		reg = <0x0 0xff910000 0x0 0x4000>;
> +		interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH 0>;
> +		clocks = <&cru SCLK_ISP0>,
> +			 <&cru ACLK_ISP0_WRAPPER>,
> +			 <&cru HCLK_ISP0_WRAPPER>;
> +		clock-names = "isp", "aclk", "hclk";
> +		iommus = <&isp0_mmu>;
> +		phys = <&mipi_dphy_rx0>;
> +		phy-names = "dphy";
> +		power-domains = <&power RK3399_PD_ISP0>;

Should this have status = "disabled" too? The mipi_dphy_rx0 node is
disabled by default too, so in the default configuration the driver
would always fail to probe.

Best regards,
Tomasz