linux-kernel - Re: [PATCH v3 5/5] arm64: dts: rockchip: Add naneng-combphy for RK3528

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <079c08bc-e8cc-4ed6-a71e-7ef103f635c0@kwiboo.se>
Date: Tue, 20 May 2025 19:51:57 +0200
From: Jonas Karlman <jonas@...boo.se>
To: Yao Zi <ziyao@...root.org>
Cc: Vinod Koul <vkoul@...nel.org>, Kishon Vijay Abraham I
 <kishon@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Heiko Stuebner <heiko@...ech.de>,
 Frank Wang <frank.wang@...k-chips.com>, Andy Yan <andy.yan@...k-chips.com>,
 Cristian Ciocaltea <cristian.ciocaltea@...labora.com>,
 Detlev Casanova <detlev.casanova@...labora.com>,
 Shresth Prasad <shresthprasad7@...il.com>, Chukun Pan <amadeus@....edu.cn>,
 linux-phy@...ts.infradead.org, devicetree@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 5/5] arm64: dts: rockchip: Add naneng-combphy for
 RK3528

On 2025-05-19 18:16, Yao Zi wrote:
> Rockchip RK3528 ships a naneng-combphy that is shared by PCIe and USB
> 3.0 controllers. Describe it and the pipe-phy grf which it depends on.
> 
> Signed-off-by: Yao Zi <ziyao@...root.org>
> ---
>  arch/arm64/boot/dts/rockchip/rk3528.dtsi | 22 ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/rockchip/rk3528.dtsi b/arch/arm64/boot/dts/rockchip/rk3528.dtsi
> index b2724c969a76..314afb94e19b 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3528.dtsi
> +++ b/arch/arm64/boot/dts/rockchip/rk3528.dtsi
> @@ -318,6 +318,11 @@ vpu_grf: syscon@...40000 {
>  			reg = <0x0 0xff340000 0x0 0x8000>;
>  		};
>  
> +		pipe_phy_grf: syscon@...48000 {
> +			compatible = "rockchip,rk3528-pipe-phy-grf", "syscon";
> +			reg = <0x0 0xff348000 0x0 0x8000>;
> +		};
> +
>  		vo_grf: syscon@...60000 {
>  			compatible = "rockchip,rk3528-vo-grf", "syscon";
>  			reg = <0x0 0xff360000 0x0 0x10000>;
> @@ -867,6 +872,23 @@ dmac: dma-controller@...60000 {
>  			arm,pl330-periph-burst;
>  		};
>  
> +		combphy: phy@...c0000 {
> +			compatible = "rockchip,rk3528-naneng-combphy";
> +			reg = <0x0 0xffdc0000 0x0 0x10000>;
> +			#phy-cells = <1>;

Should probably be sorted at end or before resets prop.

> +			clocks = <&cru CLK_REF_PCIE_INNER_PHY>, <&cru PCLK_PCIE_PHY>,

This break the ~80 line length limit mostly kept in this file.

> +				 <&cru PCLK_PIPE_GRF>;
> +			clock-names = "ref", "apb",
> +				      "pipe";

Could be kept on a single line.

> +			assigned-clocks = <&cru CLK_REF_PCIE_INNER_PHY>;
> +			assigned-clock-rates = <100000000>;

Other assigned-clock props are sorted before clocks props in this file.

This is also missing power-domains information (also missing from
dt-bindings patch):

	power-domains = <&power RK3528_PD_VPU>;

> +			resets = <&cru SRST_PCIE_PIPE_PHY>, <&cru SRST_P_PCIE_PHY>;

This also break the ~80 line length limit mostly kept in this file.

Regards,
Jonas

> +			reset-names = "phy", "apb";
> +			rockchip,pipe-grf = <&vpu_grf>;
> +			rockchip,pipe-phy-grf = <&pipe_phy_grf>;
> +			status = "disabled";
> +		};
> +
>  		pinctrl: pinctrl {
>  			compatible = "rockchip,rk3528-pinctrl";
>  			rockchip,grf = <&ioc_grf>;