[PATCH 0/5] arm64: dts: qcom: qrb5165-rb5: enable DP support

[PATCH 0/5] arm64: dts: qcom: qrb5165-rb5: enable DP support

[Dmitry Baryshkov]

Implement DisplayPort support for the Qualcomm RB5 platform.

Note: while testing this, I had link training issues with several
dongles with DP connectors. Other DisplayPort-USB-C dongles (with HDMI
or VGA connectors) work perfectly.

Dependencies: [1]
Soft-dependencies: [2], [3]

[1] https://lore.kernel.org/linux-arm-msm/20230515133643.3621656-1-bryan.odonoghue@linaro.org/
[2] https://lore.kernel.org/linux-arm-msm/20230709034211.4045004-1-dmitry.baryshkov@linaro.org/
[3] https://lore.kernel.org/linux-arm-msm/20230709034808.4049383-1-dmitry.baryshkov@linaro.org/

Dmitry Baryshkov (5):
  dt-bindings: display: msm: dp-controller: document SM8250 compatible
  arm64: dts: qcom: sm8250: Add DisplayPort device node
  arm64: dts: qcom: qrb5165-rb5: add onboard USB-C redriver
  arm64: dts: qcom: qrb5165-rb5: enable displayport controller
  arm64: dts: qcom: qrb5165-rb5: enable DP altmode

 .../bindings/display/msm/dp-controller.yaml   |  1 +
 arch/arm64/boot/dts/qcom/qrb5165-rb5.dts      | 72 +++++++++++++-
 arch/arm64/boot/dts/qcom/sm8250.dtsi          | 93 +++++++++++++++++++
 3 files changed, 164 insertions(+), 2 deletions(-)

-- 
2.39.2

[PATCH 1/5] dt-bindings: display: msm: dp-controller: document SM8250 compatible

[Dmitry Baryshkov]

It looks like DP controlled on SM8250 is the same as DP controller on
SM8350. Use the SM8350 compatible as fallback for SM8250.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 Documentation/devicetree/bindings/display/msm/dp-controller.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
index 7a7cf3fb3e6d..a31ec9a4179f 100644
--- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
@@ -28,6 +28,7 @@ properties:
           - qcom,sm8350-dp
       - items:
           - enum:
+              - qcom,sm8250-dp
               - qcom,sm8450-dp
               - qcom,sm8550-dp
           - const: qcom,sm8350-dp
-- 
2.39.2

Re: [PATCH 1/5] dt-bindings: display: msm: dp-controller: document SM8250 compatible

[Bjorn Andersson]

On Sun, Jul 09, 2023 at 07:19:22AM +0300, Dmitry Baryshkov wrote:
> It looks like DP controlled on SM8250 is the same as DP controller on
> SM8350. Use the SM8350 compatible as fallback for SM8250.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

Reviewed-by: Bjorn Andersson <andersson@kernel.org>

Regards,
Bjorn

> ---
>  Documentation/devicetree/bindings/display/msm/dp-controller.yaml | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> index 7a7cf3fb3e6d..a31ec9a4179f 100644
> --- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> +++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> @@ -28,6 +28,7 @@ properties:
>            - qcom,sm8350-dp
>        - items:
>            - enum:
> +              - qcom,sm8250-dp
>                - qcom,sm8450-dp
>                - qcom,sm8550-dp
>            - const: qcom,sm8350-dp
> -- 
> 2.39.2
> 

Re: [PATCH 1/5] dt-bindings: display: msm: dp-controller: document SM8250 compatible

[Krzysztof Kozlowski]

On 09/07/2023 06:19, Dmitry Baryshkov wrote:
> It looks like DP controlled on SM8250 is the same as DP controller on
> SM8350. Use the SM8350 compatible as fallback for SM8250.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> ---


Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof

[PATCH 2/5] arm64: dts: qcom: sm8250: Add DisplayPort device node

[Dmitry Baryshkov]

Declare the displayport controller present on the Qualcomm SM8250 SoC.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 arch/arm64/boot/dts/qcom/sm8250.dtsi | 93 ++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi
index aaf3f6764fe8..89b3a24d402d 100644
--- a/arch/arm64/boot/dts/qcom/sm8250.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi
@@ -3626,6 +3626,12 @@ port@0 {
 				port@1 {
 					reg = <1>;
 				};
+
+				port@2 {
+					reg = <2>;
+
+					usb_1_qmpphy_dp_in: endpoint {};
+				};
 			};
 		};
 
@@ -4270,6 +4276,14 @@ dpu_intf2_out: endpoint {
 							remote-endpoint = <&mdss_dsi1_in>;
 						};
 					};
+
+					port@2 {
+						reg = <2>;
+
+						dpu_intf0_out: endpoint {
+							remote-endpoint = <&mdss_dp_in>;
+						};
+					};
 				};
 
 				mdp_opp_table: opp-table {
@@ -4297,6 +4311,85 @@ opp-460000000 {
 				};
 			};
 
+			mdss_dp: displayport-controller@ae90000 {
+				compatible = "qcom,sm8250-dp", "qcom,sm8350-dp";
+				reg = <0 0xae90000 0 0x200>,
+				      <0 0xae90200 0 0x200>,
+				      <0 0xae90400 0 0x600>,
+				      <0 0xae91000 0 0x400>,
+				      <0 0xae91400 0 0x400>;
+				interrupt-parent = <&mdss>;
+				interrupts = <12>;
+				clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+					 <&dispcc DISP_CC_MDSS_DP_AUX_CLK>,
+					 <&dispcc DISP_CC_MDSS_DP_LINK_CLK>,
+					 <&dispcc DISP_CC_MDSS_DP_LINK_INTF_CLK>,
+					 <&dispcc DISP_CC_MDSS_DP_PIXEL_CLK>;
+				clock-names = "core_iface",
+					      "core_aux",
+					      "ctrl_link",
+					      "ctrl_link_iface",
+					      "stream_pixel";
+
+				assigned-clocks = <&dispcc DISP_CC_MDSS_DP_LINK_CLK_SRC>,
+						  <&dispcc DISP_CC_MDSS_DP_PIXEL_CLK_SRC>;
+				assigned-clock-parents = <&dp_phy 0>,
+							 <&dp_phy 1>;
+
+				phys = <&dp_phy>;
+				phy-names = "dp";
+
+				#sound-dai-cells = <0>;
+
+				operating-points-v2 = <&dp_opp_table>;
+				power-domains = <&rpmhpd SM8250_MMCX>;
+
+				status = "disabled";
+
+				ports {
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					port@0 {
+						reg = <0>;
+						mdss_dp_in: endpoint {
+							remote-endpoint = <&dpu_intf0_out>;
+						};
+					};
+
+					port@1 {
+						reg = <1>;
+
+						mdss_dp_out: endpoint {
+						};
+					};
+				};
+
+				dp_opp_table: opp-table {
+					compatible = "operating-points-v2";
+
+					opp-160000000 {
+						opp-hz = /bits/ 64 <160000000>;
+						required-opps = <&rpmhpd_opp_low_svs>;
+					};
+
+					opp-270000000 {
+						opp-hz = /bits/ 64 <270000000>;
+						required-opps = <&rpmhpd_opp_svs>;
+					};
+
+					opp-540000000 {
+						opp-hz = /bits/ 64 <540000000>;
+						required-opps = <&rpmhpd_opp_svs_l1>;
+					};
+
+					opp-810000000 {
+						opp-hz = /bits/ 64 <810000000>;
+						required-opps = <&rpmhpd_opp_nom>;
+					};
+				};
+			};
+
 			mdss_dsi0: dsi@ae94000 {
 				compatible = "qcom,sm8250-dsi-ctrl",
 					     "qcom,mdss-dsi-ctrl";
-- 
2.39.2

Re: [PATCH 2/5] arm64: dts: qcom: sm8250: Add DisplayPort device node

[Konrad Dybcio]

On 9.07.2023 06:19, Dmitry Baryshkov wrote:
> Declare the displayport controller present on the Qualcomm SM8250 SoC.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> ---
[...]

> +				dp_opp_table: opp-table {
> +					compatible = "operating-points-v2";
> +
> +					opp-160000000 {
> +						opp-hz = /bits/ 64 <160000000>;
> +						required-opps = <&rpmhpd_opp_low_svs>;
19.2 MHz, VDD_MIN

> +					};
> +
> +					opp-270000000 {
> +						opp-hz = /bits/ 64 <270000000>;
> +						required-opps = <&rpmhpd_opp_svs>;
270 MHz, LOW_SVS
> +					};
> +
> +					opp-540000000 {
> +						opp-hz = /bits/ 64 <540000000>;
> +						required-opps = <&rpmhpd_opp_svs_l1>;
540 MHz, SVS_L1 (ok)
> +					};
> +
> +					opp-810000000 {
> +						opp-hz = /bits/ 64 <810000000>;
> +						required-opps = <&rpmhpd_opp_nom>;
810 MHz, NOM (also ok)

(but then - there's qcom,max-pclk-frequency-khz = <675000>;)

also, what's up with the PIXEL1 clocks etc.?
they are capped at the aforementioned 675 Mhz but I have no idea
what they're for

Konrad
> +					};
> +				};
> +			};
> +
>  			mdss_dsi0: dsi@ae94000 {
>  				compatible = "qcom,sm8250-dsi-ctrl",
>  					     "qcom,mdss-dsi-ctrl";

Re: [PATCH 2/5] arm64: dts: qcom: sm8250: Add DisplayPort device node

[Dmitry Baryshkov]

On 12/07/2023 00:34, Konrad Dybcio wrote:
> On 9.07.2023 06:19, Dmitry Baryshkov wrote:
>> Declare the displayport controller present on the Qualcomm SM8250 SoC.
>>
>> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
>> ---
> [...]
> 
>> +				dp_opp_table: opp-table {
>> +					compatible = "operating-points-v2";
>> +
>> +					opp-160000000 {
>> +						opp-hz = /bits/ 64 <160000000>;
>> +						required-opps = <&rpmhpd_opp_low_svs>;
> 19.2 MHz, VDD_MIN

I don't think so, the lowest working point is 162 MHz for RBR. 19.2 is 
just just artificial. I'll check, maybe it would be better to drop this 
completely.

> 
>> +					};
>> +
>> +					opp-270000000 {
>> +						opp-hz = /bits/ 64 <270000000>;
>> +						required-opps = <&rpmhpd_opp_svs>;
> 270 MHz, LOW_SVS

Ack. Which probably means that we should fix all existing DP opp tables. 
They all should be using low_svs here.

>> +					};
>> +
>> +					opp-540000000 {
>> +						opp-hz = /bits/ 64 <540000000>;
>> +						required-opps = <&rpmhpd_opp_svs_l1>;
> 540 MHz, SVS_L1 (ok)
>> +					};
>> +
>> +					opp-810000000 {
>> +						opp-hz = /bits/ 64 <810000000>;
>> +						required-opps = <&rpmhpd_opp_nom>;
> 810 MHz, NOM (also ok)
> 
> (but then - there's qcom,max-pclk-frequency-khz = <675000>;)
> 
> also, what's up with the PIXEL1 clocks etc.?
> they are capped at the aforementioned 675 Mhz but I have no idea
> what they're for

I think PIXEL1 is used for DP MST.

> 
> Konrad
>> +					};
>> +				};
>> +			};
>> +
>>   			mdss_dsi0: dsi@ae94000 {
>>   				compatible = "qcom,sm8250-dsi-ctrl",
>>   					     "qcom,mdss-dsi-ctrl";

-- 
With best wishes
Dmitry

[PATCH 3/5] arm64: dts: qcom: qrb5165-rb5: add onboard USB-C redriver

[Dmitry Baryshkov]

Add the nb7vpq904m, onboard USB-C redriver / retimer.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 arch/arm64/boot/dts/qcom/qrb5165-rb5.dts | 52 +++++++++++++++++++++++-
 1 file changed, 50 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
index b6c587ffdf8f..a03f334a3d01 100644
--- a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
+++ b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
@@ -610,6 +610,46 @@ lt9611_out: endpoint {
 /* LS-I2C1 */
 &i2c15 {
 	status = "okay";
+
+	typec-mux@1c {
+		compatible = "onnn,nb7vpq904m";
+		reg = <0x1c>;
+
+		vcc-supply = <&vreg_s4a_1p8>;
+
+		retimer-switch;
+		orientation-switch;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				redriver_usb_con_ss: endpoint {
+					remote-endpoint = <&pm8150b_typec_mux_out>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+
+				redriver_phy_con_ss: endpoint {
+					remote-endpoint = <&usb_1_qmpphy_typec_mux_in>;
+					data-lanes = <0 1 2 3>;
+				};
+			};
+
+			port@2 {
+				reg = <2>;
+
+				redriver_usb_con_sbu: endpoint {
+					remote-endpoint = <&pm8150b_typec_sbu_out>;
+				};
+			};
+		};
+	};
 };
 
 &mdss {
@@ -1294,7 +1334,7 @@ &usb_1_qmpphy {
 };
 
 &usb_1_qmpphy_typec_mux_in {
-	remote-endpoint = <&pm8150b_typec_mux_out>;
+	remote-endpoint = <&redriver_phy_con_ss>;
 };
 
 &usb_2 {
@@ -1382,7 +1422,15 @@ pm8150b_role_switch_out: endpoint {
 			port@1 {
 				reg = <1>;
 				pm8150b_typec_mux_out: endpoint {
-					remote-endpoint = <&usb_1_qmpphy_typec_mux_in>;
+					remote-endpoint = <&redriver_usb_con_ss>;
+				};
+			};
+
+			port@2 {
+				reg = <2>;
+
+				pm8150b_typec_sbu_out: endpoint {
+					remote-endpoint = <&redriver_usb_con_sbu>;
 				};
 			};
 		};
-- 
2.39.2

Re: [PATCH 3/5] arm64: dts: qcom: qrb5165-rb5: add onboard USB-C redriver

[Konrad Dybcio]

On 9.07.2023 06:19, Dmitry Baryshkov wrote:
> Add the nb7vpq904m, onboard USB-C redriver / retimer.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> ---
[...]

> +			port@1 {
> +				reg = <1>;
> +
> +				redriver_phy_con_ss: endpoint {
> +					remote-endpoint = <&usb_1_qmpphy_typec_mux_in>;
> +					data-lanes = <0 1 2 3>;
That's USB+DP lines combined, or how does it work? I'm confused :/

Konrad
> +				};
> +			};
> +
> +			port@2 {
> +				reg = <2>;
> +
> +				redriver_usb_con_sbu: endpoint {
> +					remote-endpoint = <&pm8150b_typec_sbu_out>;
> +				};
> +			};
> +		};
> +	};
>  };
>  
>  &mdss {
> @@ -1294,7 +1334,7 @@ &usb_1_qmpphy {
>  };
>  
>  &usb_1_qmpphy_typec_mux_in {
> -	remote-endpoint = <&pm8150b_typec_mux_out>;
> +	remote-endpoint = <&redriver_phy_con_ss>;
>  };
>  
>  &usb_2 {
> @@ -1382,7 +1422,15 @@ pm8150b_role_switch_out: endpoint {
>  			port@1 {
>  				reg = <1>;
>  				pm8150b_typec_mux_out: endpoint {
> -					remote-endpoint = <&usb_1_qmpphy_typec_mux_in>;
> +					remote-endpoint = <&redriver_usb_con_ss>;
> +				};
> +			};
> +
> +			port@2 {
> +				reg = <2>;
> +
> +				pm8150b_typec_sbu_out: endpoint {
> +					remote-endpoint = <&redriver_usb_con_sbu>;
>  				};
>  			};
>  		};

Re: [PATCH 3/5] arm64: dts: qcom: qrb5165-rb5: add onboard USB-C redriver

[Dmitry Baryshkov]

On 12/07/2023 00:36, Konrad Dybcio wrote:
> On 9.07.2023 06:19, Dmitry Baryshkov wrote:
>> Add the nb7vpq904m, onboard USB-C redriver / retimer.
>>
>> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
>> ---
> [...]
> 
>> +			port@1 {
>> +				reg = <1>;
>> +
>> +				redriver_phy_con_ss: endpoint {
>> +					remote-endpoint = <&usb_1_qmpphy_typec_mux_in>;
>> +					data-lanes = <0 1 2 3>;
> That's USB+DP lines combined, or how does it work? I'm confused :/

4 generic purpose SS lanes, which can be purposed for USB or for DP.

> 
> Konrad
>> +				};
>> +			};
>> +
>> +			port@2 {
>> +				reg = <2>;
>> +
>> +				redriver_usb_con_sbu: endpoint {
>> +					remote-endpoint = <&pm8150b_typec_sbu_out>;
>> +				};
>> +			};
>> +		};
>> +	};
>>   };
>>   
>>   &mdss {
>> @@ -1294,7 +1334,7 @@ &usb_1_qmpphy {
>>   };
>>   
>>   &usb_1_qmpphy_typec_mux_in {
>> -	remote-endpoint = <&pm8150b_typec_mux_out>;
>> +	remote-endpoint = <&redriver_phy_con_ss>;
>>   };
>>   
>>   &usb_2 {
>> @@ -1382,7 +1422,15 @@ pm8150b_role_switch_out: endpoint {
>>   			port@1 {
>>   				reg = <1>;
>>   				pm8150b_typec_mux_out: endpoint {
>> -					remote-endpoint = <&usb_1_qmpphy_typec_mux_in>;
>> +					remote-endpoint = <&redriver_usb_con_ss>;
>> +				};
>> +			};
>> +
>> +			port@2 {
>> +				reg = <2>;
>> +
>> +				pm8150b_typec_sbu_out: endpoint {
>> +					remote-endpoint = <&redriver_usb_con_sbu>;
>>   				};
>>   			};
>>   		};

-- 
With best wishes
Dmitry

Re: [PATCH 3/5] arm64: dts: qcom: qrb5165-rb5: add onboard USB-C redriver

[Konrad Dybcio]

On 12.07.2023 00:39, Dmitry Baryshkov wrote:
> On 12/07/2023 00:36, Konrad Dybcio wrote:
>> On 9.07.2023 06:19, Dmitry Baryshkov wrote:
>>> Add the nb7vpq904m, onboard USB-C redriver / retimer.
>>>
>>> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
>>> ---
>> [...]
>>
>>> +            port@1 {
>>> +                reg = <1>;
>>> +
>>> +                redriver_phy_con_ss: endpoint {
>>> +                    remote-endpoint = <&usb_1_qmpphy_typec_mux_in>;
>>> +                    data-lanes = <0 1 2 3>;
>> That's USB+DP lines combined, or how does it work? I'm confused :/
> 
> 4 generic purpose SS lanes, which can be purposed for USB or for DP.
Okay, so my gut did better than my brain.

Other than that, I'm reading the bindings and it looks like ports 0 and
1 may possibly be swapped?

Konrad
> 
>>
>> Konrad
>>> +                };
>>> +            };
>>> +
>>> +            port@2 {
>>> +                reg = <2>;
>>> +
>>> +                redriver_usb_con_sbu: endpoint {
>>> +                    remote-endpoint = <&pm8150b_typec_sbu_out>;
>>> +                };
>>> +            };
>>> +        };
>>> +    };
>>>   };
>>>     &mdss {
>>> @@ -1294,7 +1334,7 @@ &usb_1_qmpphy {
>>>   };
>>>     &usb_1_qmpphy_typec_mux_in {
>>> -    remote-endpoint = <&pm8150b_typec_mux_out>;
>>> +    remote-endpoint = <&redriver_phy_con_ss>;
>>>   };
>>>     &usb_2 {
>>> @@ -1382,7 +1422,15 @@ pm8150b_role_switch_out: endpoint {
>>>               port@1 {
>>>                   reg = <1>;
>>>                   pm8150b_typec_mux_out: endpoint {
>>> -                    remote-endpoint = <&usb_1_qmpphy_typec_mux_in>;
>>> +                    remote-endpoint = <&redriver_usb_con_ss>;
>>> +                };
>>> +            };
>>> +
>>> +            port@2 {
>>> +                reg = <2>;
>>> +
>>> +                pm8150b_typec_sbu_out: endpoint {
>>> +                    remote-endpoint = <&redriver_usb_con_sbu>;
>>>                   };
>>>               };
>>>           };
> 

Re: [PATCH 3/5] arm64: dts: qcom: qrb5165-rb5: add onboard USB-C redriver

[Dmitry Baryshkov]

On Wed, 12 Jul 2023 at 01:59, Konrad Dybcio <konrad.dybcio@linaro.org> wrote:
>
> On 12.07.2023 00:39, Dmitry Baryshkov wrote:
> > On 12/07/2023 00:36, Konrad Dybcio wrote:
> >> On 9.07.2023 06:19, Dmitry Baryshkov wrote:
> >>> Add the nb7vpq904m, onboard USB-C redriver / retimer.
> >>>
> >>> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> >>> ---
> >> [...]
> >>
> >>> +            port@1 {
> >>> +                reg = <1>;
> >>> +
> >>> +                redriver_phy_con_ss: endpoint {
> >>> +                    remote-endpoint = <&usb_1_qmpphy_typec_mux_in>;
> >>> +                    data-lanes = <0 1 2 3>;
> >> That's USB+DP lines combined, or how does it work? I'm confused :/
> >
> > 4 generic purpose SS lanes, which can be purposed for USB or for DP.
> Okay, so my gut did better than my brain.
>
> Other than that, I'm reading the bindings and it looks like ports 0 and
> 1 may possibly be swapped?

Yes. But if I get schematics right, the lanes are not swapped in this case.

>
> Konrad
> >
> >>
> >> Konrad
> >>> +                };
> >>> +            };
> >>> +
> >>> +            port@2 {
> >>> +                reg = <2>;
> >>> +
> >>> +                redriver_usb_con_sbu: endpoint {
> >>> +                    remote-endpoint = <&pm8150b_typec_sbu_out>;
> >>> +                };
> >>> +            };
> >>> +        };
> >>> +    };
> >>>   };
> >>>     &mdss {
> >>> @@ -1294,7 +1334,7 @@ &usb_1_qmpphy {
> >>>   };
> >>>     &usb_1_qmpphy_typec_mux_in {
> >>> -    remote-endpoint = <&pm8150b_typec_mux_out>;
> >>> +    remote-endpoint = <&redriver_phy_con_ss>;
> >>>   };
> >>>     &usb_2 {
> >>> @@ -1382,7 +1422,15 @@ pm8150b_role_switch_out: endpoint {
> >>>               port@1 {
> >>>                   reg = <1>;
> >>>                   pm8150b_typec_mux_out: endpoint {
> >>> -                    remote-endpoint = <&usb_1_qmpphy_typec_mux_in>;
> >>> +                    remote-endpoint = <&redriver_usb_con_ss>;
> >>> +                };
> >>> +            };
> >>> +
> >>> +            port@2 {
> >>> +                reg = <2>;
> >>> +
> >>> +                pm8150b_typec_sbu_out: endpoint {
> >>> +                    remote-endpoint = <&redriver_usb_con_sbu>;
> >>>                   };
> >>>               };
> >>>           };
> >



-- 
With best wishes
Dmitry

Re: [PATCH 3/5] arm64: dts: qcom: qrb5165-rb5: add onboard USB-C redriver

[Konrad Dybcio]

On 12.07.2023 01:01, Dmitry Baryshkov wrote:
> On Wed, 12 Jul 2023 at 01:59, Konrad Dybcio <konrad.dybcio@linaro.org> wrote:
>>
>> On 12.07.2023 00:39, Dmitry Baryshkov wrote:
>>> On 12/07/2023 00:36, Konrad Dybcio wrote:
>>>> On 9.07.2023 06:19, Dmitry Baryshkov wrote:
>>>>> Add the nb7vpq904m, onboard USB-C redriver / retimer.
>>>>>
>>>>> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
>>>>> ---
>>>> [...]
>>>>
>>>>> +            port@1 {
>>>>> +                reg = <1>;
>>>>> +
>>>>> +                redriver_phy_con_ss: endpoint {
>>>>> +                    remote-endpoint = <&usb_1_qmpphy_typec_mux_in>;
>>>>> +                    data-lanes = <0 1 2 3>;
>>>> That's USB+DP lines combined, or how does it work? I'm confused :/
>>>
>>> 4 generic purpose SS lanes, which can be purposed for USB or for DP.
>> Okay, so my gut did better than my brain.
>>
>> Other than that, I'm reading the bindings and it looks like ports 0 and
>> 1 may possibly be swapped?
> 
> Yes. But if I get schematics right, the lanes are not swapped in this case.
I'm not talking about the 0123-3210 swap, but rather in/out being swapped.
Unless I'm reading the bindings wrong (or they may be written in a
confusing way).

Konrad
> 
>>
>> Konrad
>>>
>>>>
>>>> Konrad
>>>>> +                };
>>>>> +            };
>>>>> +
>>>>> +            port@2 {
>>>>> +                reg = <2>;
>>>>> +
>>>>> +                redriver_usb_con_sbu: endpoint {
>>>>> +                    remote-endpoint = <&pm8150b_typec_sbu_out>;
>>>>> +                };
>>>>> +            };
>>>>> +        };
>>>>> +    };
>>>>>   };
>>>>>     &mdss {
>>>>> @@ -1294,7 +1334,7 @@ &usb_1_qmpphy {
>>>>>   };
>>>>>     &usb_1_qmpphy_typec_mux_in {
>>>>> -    remote-endpoint = <&pm8150b_typec_mux_out>;
>>>>> +    remote-endpoint = <&redriver_phy_con_ss>;
>>>>>   };
>>>>>     &usb_2 {
>>>>> @@ -1382,7 +1422,15 @@ pm8150b_role_switch_out: endpoint {
>>>>>               port@1 {
>>>>>                   reg = <1>;
>>>>>                   pm8150b_typec_mux_out: endpoint {
>>>>> -                    remote-endpoint = <&usb_1_qmpphy_typec_mux_in>;
>>>>> +                    remote-endpoint = <&redriver_usb_con_ss>;
>>>>> +                };
>>>>> +            };
>>>>> +
>>>>> +            port@2 {
>>>>> +                reg = <2>;
>>>>> +
>>>>> +                pm8150b_typec_sbu_out: endpoint {
>>>>> +                    remote-endpoint = <&redriver_usb_con_sbu>;
>>>>>                   };
>>>>>               };
>>>>>           };
>>>
> 
> 
> 

Re: [PATCH 3/5] arm64: dts: qcom: qrb5165-rb5: add onboard USB-C redriver

[Dmitry Baryshkov]

On 12/07/2023 02:04, Konrad Dybcio wrote:
> On 12.07.2023 01:01, Dmitry Baryshkov wrote:
>> On Wed, 12 Jul 2023 at 01:59, Konrad Dybcio <konrad.dybcio@linaro.org> wrote:
>>>
>>> On 12.07.2023 00:39, Dmitry Baryshkov wrote:
>>>> On 12/07/2023 00:36, Konrad Dybcio wrote:
>>>>> On 9.07.2023 06:19, Dmitry Baryshkov wrote:
>>>>>> Add the nb7vpq904m, onboard USB-C redriver / retimer.
>>>>>>
>>>>>> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
>>>>>> ---
>>>>> [...]
>>>>>
>>>>>> +            port@1 {
>>>>>> +                reg = <1>;
>>>>>> +
>>>>>> +                redriver_phy_con_ss: endpoint {
>>>>>> +                    remote-endpoint = <&usb_1_qmpphy_typec_mux_in>;
>>>>>> +                    data-lanes = <0 1 2 3>;
>>>>> That's USB+DP lines combined, or how does it work? I'm confused :/
>>>>
>>>> 4 generic purpose SS lanes, which can be purposed for USB or for DP.
>>> Okay, so my gut did better than my brain.
>>>
>>> Other than that, I'm reading the bindings and it looks like ports 0 and
>>> 1 may possibly be swapped?
>>
>> Yes. But if I get schematics right, the lanes are not swapped in this case.
> I'm not talking about the 0123-3210 swap, but rather in/out being swapped.
> Unless I'm reading the bindings wrong (or they may be written in a
> confusing way).

Hmm, no. port@0 goes to the connector, port@1 to SS PHY, port@2 to SBU 
source.

> 
> Konrad
>>
>>>
>>> Konrad
>>>>
>>>>>
>>>>> Konrad
>>>>>> +                };
>>>>>> +            };
>>>>>> +
>>>>>> +            port@2 {
>>>>>> +                reg = <2>;
>>>>>> +
>>>>>> +                redriver_usb_con_sbu: endpoint {
>>>>>> +                    remote-endpoint = <&pm8150b_typec_sbu_out>;
>>>>>> +                };
>>>>>> +            };
>>>>>> +        };
>>>>>> +    };
>>>>>>    };
>>>>>>      &mdss {
>>>>>> @@ -1294,7 +1334,7 @@ &usb_1_qmpphy {
>>>>>>    };
>>>>>>      &usb_1_qmpphy_typec_mux_in {
>>>>>> -    remote-endpoint = <&pm8150b_typec_mux_out>;
>>>>>> +    remote-endpoint = <&redriver_phy_con_ss>;
>>>>>>    };
>>>>>>      &usb_2 {
>>>>>> @@ -1382,7 +1422,15 @@ pm8150b_role_switch_out: endpoint {
>>>>>>                port@1 {
>>>>>>                    reg = <1>;
>>>>>>                    pm8150b_typec_mux_out: endpoint {
>>>>>> -                    remote-endpoint = <&usb_1_qmpphy_typec_mux_in>;
>>>>>> +                    remote-endpoint = <&redriver_usb_con_ss>;
>>>>>> +                };
>>>>>> +            };
>>>>>> +
>>>>>> +            port@2 {
>>>>>> +                reg = <2>;
>>>>>> +
>>>>>> +                pm8150b_typec_sbu_out: endpoint {
>>>>>> +                    remote-endpoint = <&redriver_usb_con_sbu>;
>>>>>>                    };
>>>>>>                };
>>>>>>            };
>>>>
>>
>>
>>

-- 
With best wishes
Dmitry

[PATCH 4/5] arm64: dts: qcom: qrb5165-rb5: enable displayport controller

[Dmitry Baryshkov]

Enable the onboard displayport controller, connect it to QMP PHY.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 arch/arm64/boot/dts/qcom/qrb5165-rb5.dts | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
index a03f334a3d01..210c60025c32 100644
--- a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
+++ b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
@@ -656,6 +656,15 @@ &mdss {
 	status = "okay";
 };
 
+&mdss_dp {
+	status = "okay";
+};
+
+&mdss_dp_out {
+	data-lanes = <0 1>;
+	remote-endpoint = <&usb_1_qmpphy_dp_in>;
+};
+
 &mdss_dsi0 {
 	status = "okay";
 	vdda-supply = <&vreg_l9a_1p2>;
@@ -1436,3 +1445,7 @@ pm8150b_typec_sbu_out: endpoint {
 		};
 	};
 };
+
+&usb_1_qmpphy_dp_in {
+	remote-endpoint = <&mdss_dp_out>;
+};
-- 
2.39.2

Re: [PATCH 4/5] arm64: dts: qcom: qrb5165-rb5: enable displayport controller

[Konrad Dybcio]

On 9.07.2023 06:19, Dmitry Baryshkov wrote:
> Enable the onboard displayport controller, connect it to QMP PHY.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>

Konrad
>  arch/arm64/boot/dts/qcom/qrb5165-rb5.dts | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
> index a03f334a3d01..210c60025c32 100644
> --- a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
> +++ b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
> @@ -656,6 +656,15 @@ &mdss {
>  	status = "okay";
>  };
>  
> +&mdss_dp {
> +	status = "okay";
> +};
> +
> +&mdss_dp_out {
> +	data-lanes = <0 1>;
> +	remote-endpoint = <&usb_1_qmpphy_dp_in>;
> +};
> +
>  &mdss_dsi0 {
>  	status = "okay";
>  	vdda-supply = <&vreg_l9a_1p2>;
> @@ -1436,3 +1445,7 @@ pm8150b_typec_sbu_out: endpoint {
>  		};
>  	};
>  };
> +
> +&usb_1_qmpphy_dp_in {
> +	remote-endpoint = <&mdss_dp_out>;
> +};

[PATCH 5/5] arm64: dts: qcom: qrb5165-rb5: enable DP altmode

[Dmitry Baryshkov]

Add displayport altmode declaration to the Type-C controller node to
enable DP altmode negotiation.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 arch/arm64/boot/dts/qcom/qrb5165-rb5.dts | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
index 210c60025c32..5f289bf640f1 100644
--- a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
+++ b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
@@ -1418,6 +1418,13 @@ PDO_FIXED_DUAL_ROLE |
 					 PDO_FIXED_USB_COMM |
 					 PDO_FIXED_DATA_SWAP)>;
 
+		altmodes {
+			displayport {
+				svid = <0xff01>;
+				vdo = <0x00001c46>;
+			};
+		};
+
 		ports {
 			#address-cells = <1>;
 			#size-cells = <0>;
-- 
2.39.2

Re: [PATCH 0/5] arm64: dts: qcom: qrb5165-rb5: enable DP support

[Dmitry Baryshkov]

On Sun, 09 Jul 2023 07:19:21 +0300, Dmitry Baryshkov wrote:
> Implement DisplayPort support for the Qualcomm RB5 platform.
> 
> Note: while testing this, I had link training issues with several
> dongles with DP connectors. Other DisplayPort-USB-C dongles (with HDMI
> or VGA connectors) work perfectly.
> 
> Dependencies: [1]
> Soft-dependencies: [2], [3]
> 
> [...]

Applied, thanks!

[1/5] dt-bindings: display: msm: dp-controller: document SM8250 compatible
      https://gitlab.freedesktop.org/lumag/msm/-/commit/5ce85953cc45

Best regards,
-- 
Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

Re: [PATCH 0/5] arm64: dts: qcom: qrb5165-rb5: enable DP support

[Bjorn Andersson]

On Sun, Jul 09, 2023 at 07:19:21AM +0300, Dmitry Baryshkov wrote:
> Implement DisplayPort support for the Qualcomm RB5 platform.
> 
> Note: while testing this, I had link training issues with several
> dongles with DP connectors. Other DisplayPort-USB-C dongles (with HDMI
> or VGA connectors) work perfectly.
> 
> Dependencies: [1]
> Soft-dependencies: [2], [3]
> 
> [1] https://lore.kernel.org/linux-arm-msm/20230515133643.3621656-1-bryan.odonoghue@linaro.org/

I'm not able to find a version of this series ready to be merged, can
you please help me find it?

Regards,
Bjorn

Re: [PATCH 0/5] arm64: dts: qcom: qrb5165-rb5: enable DP support

[Dmitry Baryshkov]

On 18/07/2023 07:37, Bjorn Andersson wrote:
> On Sun, Jul 09, 2023 at 07:19:21AM +0300, Dmitry Baryshkov wrote:
>> Implement DisplayPort support for the Qualcomm RB5 platform.
>>
>> Note: while testing this, I had link training issues with several
>> dongles with DP connectors. Other DisplayPort-USB-C dongles (with HDMI
>> or VGA connectors) work perfectly.
>>
>> Dependencies: [1]
>> Soft-dependencies: [2], [3]
>>
>> [1] https://lore.kernel.org/linux-arm-msm/20230515133643.3621656-1-bryan.odonoghue@linaro.org/
> 
> I'm not able to find a version of this series ready to be merged, can
> you please help me find it?

This = Bryan's? I have posted some (small) feedback regarding v8. You 
also had issues with orientation switching bindings, etc. So there 
should be v9.

> 
> Regards,
> Bjorn

-- 
With best wishes
Dmitry

Re: [PATCH 0/5] arm64: dts: qcom: qrb5165-rb5: enable DP support

[Bjorn Andersson]

On Tue, Jul 18, 2023 at 09:09:41AM +0300, Dmitry Baryshkov wrote:
> On 18/07/2023 07:37, Bjorn Andersson wrote:
> > On Sun, Jul 09, 2023 at 07:19:21AM +0300, Dmitry Baryshkov wrote:
> > > Implement DisplayPort support for the Qualcomm RB5 platform.
> > > 
> > > Note: while testing this, I had link training issues with several
> > > dongles with DP connectors. Other DisplayPort-USB-C dongles (with HDMI
> > > or VGA connectors) work perfectly.
> > > 
> > > Dependencies: [1]
> > > Soft-dependencies: [2], [3]
> > > 
> > > [1] https://lore.kernel.org/linux-arm-msm/20230515133643.3621656-1-bryan.odonoghue@linaro.org/
> > 
> > I'm not able to find a version of this series ready to be merged, can
> > you please help me find it?
> 
> This = Bryan's? I have posted some (small) feedback regarding v8. You also
> had issues with orientation switching bindings, etc. So there should be v9.
> 

Right, Bryan's series. You linked to v8 which has requests for changes,
and I can't find v9. Am I just bad at searching?

Regards,
Bjorn

Re: [PATCH 0/5] arm64: dts: qcom: qrb5165-rb5: enable DP support

[Dmitry Baryshkov]

On 22/07/2023 05:49, Bjorn Andersson wrote:
> On Tue, Jul 18, 2023 at 09:09:41AM +0300, Dmitry Baryshkov wrote:
>> On 18/07/2023 07:37, Bjorn Andersson wrote:
>>> On Sun, Jul 09, 2023 at 07:19:21AM +0300, Dmitry Baryshkov wrote:
>>>> Implement DisplayPort support for the Qualcomm RB5 platform.
>>>>
>>>> Note: while testing this, I had link training issues with several
>>>> dongles with DP connectors. Other DisplayPort-USB-C dongles (with HDMI
>>>> or VGA connectors) work perfectly.
>>>>
>>>> Dependencies: [1]
>>>> Soft-dependencies: [2], [3]
>>>>
>>>> [1] https://lore.kernel.org/linux-arm-msm/20230515133643.3621656-1-bryan.odonoghue@linaro.org/
>>>
>>> I'm not able to find a version of this series ready to be merged, can
>>> you please help me find it?
>>
>> This = Bryan's? I have posted some (small) feedback regarding v8. You also
>> had issues with orientation switching bindings, etc. So there should be v9.
>>
> 
> Right, Bryan's series. You linked to v8 which has requests for changes,
> and I can't find v9. Am I just bad at searching?
> 

I think v9 has never been sent.

-- 
With best wishes
Dmitry

Re: (subset) [PATCH 0/5] arm64: dts: qcom: qrb5165-rb5: enable DP support

[Bjorn Andersson]

On Sun, 09 Jul 2023 07:19:21 +0300, Dmitry Baryshkov wrote:
> Implement DisplayPort support for the Qualcomm RB5 platform.
> 
> Note: while testing this, I had link training issues with several
> dongles with DP connectors. Other DisplayPort-USB-C dongles (with HDMI
> or VGA connectors) work perfectly.
> 
> Dependencies: [1]
> Soft-dependencies: [2], [3]
> 
> [...]

Applied, thanks!

[2/5] arm64: dts: qcom: sm8250: Add DisplayPort device node
      commit: 956aa24b16350a50d3a6beb9237bc35aa2f447d6
[3/5] arm64: dts: qcom: qrb5165-rb5: add onboard USB-C redriver
      commit: d342e1c993bd7589cad9d2da099c6a9c652ecb9f
[4/5] arm64: dts: qcom: qrb5165-rb5: enable displayport controller
      commit: 96387ee7534dc449be35a9bb98b7668da2bed545
[5/5] arm64: dts: qcom: qrb5165-rb5: enable DP altmode
      commit: b3dea914127e9065df003002ed13a2ef40d19877

Best regards,
-- 
Bjorn Andersson <andersson@kernel.org>