linux-kernel - Re: [PATCH v3 3/3] arm64: dts: qcom: sm6350: Use specific qmpphy compatible

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Date:   Wed, 28 Dec 2022 15:23:58 +0100
From:   Johan Hovold <johan@...nel.org>
To:     Luca Weiss <luca.weiss@...rphone.com>
Cc:     linux-arm-msm@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 3/3] arm64: dts: qcom: sm6350: Use specific qmpphy
 compatible

On Wed, Nov 30, 2022 at 09:14:29AM +0100, Luca Weiss wrote:
> The sc7180 phy compatible works fine for some cases, but it turns out
> sm6350 does need proper phy configuration in the driver, so use the
> newly added sm6350 compatible.
> 
> Because the sm6350 compatible is using the new binding, we need to
> change the node quite a bit to match it.
> 
> This fixes qmpphy init when no USB cable is plugged in during bootloader
> stage.
> 
> Signed-off-by: Luca Weiss <luca.weiss@...rphone.com>
> ---
> Changes since v2:
> * Rebase on https://lore.kernel.org/all/20221111094729.11842-2-johan+linaro@kernel.org/
>   While this commit deletes the changes there it's still good to get it
>   in for completeness
> * Fix clocks, add power-domain
> 
>  arch/arm64/boot/dts/qcom/sm6350.dtsi | 50 ++++++++--------------------
>  1 file changed, 14 insertions(+), 36 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm6350.dtsi b/arch/arm64/boot/dts/qcom/sm6350.dtsi
> index 43324bf291c3..cb48f03a6cc9 100644
> --- a/arch/arm64/boot/dts/qcom/sm6350.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm6350.dtsi
> @@ -11,6 +11,7 @@
>  #include <dt-bindings/interconnect/qcom,sm6350.h>
>  #include <dt-bindings/interrupt-controller/arm-gic.h>
>  #include <dt-bindings/mailbox/qcom-ipcc.h>
> +#include <dt-bindings/phy/phy-qcom-qmp.h>
>  #include <dt-bindings/power/qcom-rpmpd.h>
>  #include <dt-bindings/soc/qcom,rpmh-rsc.h>
>  
> @@ -1119,49 +1120,26 @@ usb_1_hsphy: phy@...3000 {
>  			resets = <&gcc GCC_QUSB2PHY_PRIM_BCR>;
>  		};
>  
> -		usb_1_qmpphy: phy@...9000 {
> -			compatible = "qcom,sc7180-qmp-usb3-dp-phy";
> -			reg = <0 0x088e9000 0 0x200>,
> -			      <0 0x088e8000 0 0x40>,
> -			      <0 0x088ea000 0 0x200>;
> -			status = "disabled";
> -			#address-cells = <2>;
> -			#size-cells = <2>;
> -			ranges;
> +		usb_1_qmpphy: phy@...8000 {
> +			compatible = "qcom,sm6350-qmp-usb3-dp-phy";
> +			reg = <0 0x088e8000 0 0x3000>;
>  
>  			clocks = <&gcc GCC_USB3_PRIM_PHY_AUX_CLK>,
> -				 <&xo_board>,
> -				 <&rpmhcc RPMH_QLINK_CLK>,
> -				 <&gcc GCC_USB3_PRIM_PHY_COM_AUX_CLK>;
> -			clock-names = "aux", "cfg_ahb", "ref", "com_aux";
> +				 <&gcc GCC_USB3_PRIM_CLKREF_CLK>,
> +				 <&gcc GCC_USB3_PRIM_PHY_COM_AUX_CLK>,
> +				 <&gcc GCC_USB3_PRIM_PHY_PIPE_CLK>;
> +			clock-names = "aux", "ref", "com_aux", "usb3_pipe";
> +
> +			power-domains = <&gcc USB30_PRIM_GDSC>;
>  
>  			resets = <&gcc GCC_USB3_DP_PHY_PRIM_BCR>,
>  				 <&gcc GCC_USB3_PHY_PRIM_BCR>;

These have been switched too.

>  			reset-names = "phy", "common";
>  
> -			usb_1_ssphy: usb3-phy@...9200 {
> -				reg = <0 0x088e9200 0 0x200>,
> -				      <0 0x088e9400 0 0x200>,
> -				      <0 0x088e9c00 0 0x400>,
> -				      <0 0x088e9600 0 0x200>,
> -				      <0 0x088e9800 0 0x200>,
> -				      <0 0x088e9a00 0 0x100>;
> -				#clock-cells = <0>;
> -				#phy-cells = <0>;
> -				clocks = <&gcc GCC_USB3_PRIM_PHY_PIPE_CLK>;
> -				clock-names = "pipe0";
> -				clock-output-names = "usb3_phy_pipe_clk_src";
> -			};
> +			#clock-cells = <1>;
> +			#phy-cells = <1>;
>  
> -			dp_phy: dp-phy@...a200 {
> -				reg = <0 0x088ea200 0 0x200>,
> -				      <0 0x088ea400 0 0x200>,
> -				      <0 0x088eaa00 0 0x200>,
> -				      <0 0x088ea600 0 0x200>,
> -				      <0 0x088ea800 0 0x200>;
> -				#phy-cells = <0>;
> -				#clock-cells = <1>;
> -			};
> +			status = "disabled";
>  		};
>  
>  		dc_noc: interconnect@...0000 {
> @@ -1235,7 +1213,7 @@ usb_1_dwc3: usb@...0000 {
>  				snps,dis_enblslpm_quirk;
>  				snps,has-lpm-erratum;
>  				snps,hird-threshold = /bits/ 8 <0x10>;
> -				phys = <&usb_1_hsphy>, <&usb_1_ssphy>;
> +				phys = <&usb_1_hsphy>, <&usb_1_qmpphy QMP_USB43DP_USB3_PHY>;
>  				phy-names = "usb2-phy", "usb3-phy";
>  			};
>  		};

Looks good otherwise. With the resets fixed you can add my:

Reviewed-by: Johan Hovold <johan+linaro@...nel.org>

Johan