1. Patchew
  2. linux
  3. [PATCH v3 0/3] arm64: dts: qcom: sm8550-mtp: enable DSI panel
  4. View patch

[PATCH v3 3/3] arm64: dts: qcom: sm8550-mtp: add DSI panel

Neil Armstrong posted 3 patches 3 years ago
There is a newer version of this series
[PATCH v3 3/3] arm64: dts: qcom: sm8550-mtp: add DSI panel
Posted by Neil Armstrong 3 years ago 
Add nodes for the Visionox VTDR6130 found on the SM8550-MTP
device.

TLMM states are also added for the Panel reset GPIO and
Tearing Effect signal for when the panel is running in
DSI Command mode.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
 arch/arm64/boot/dts/qcom/sm8550-mtp.dts | 56 +++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8550-mtp.dts b/arch/arm64/boot/dts/qcom/sm8550-mtp.dts
index 0dfd1d3db86c..2de387aa2c2d 100644
--- a/arch/arm64/boot/dts/qcom/sm8550-mtp.dts
+++ b/arch/arm64/boot/dts/qcom/sm8550-mtp.dts
@@ -370,6 +370,34 @@ &mdss {
 &mdss_dsi0 {
 	vdda-supply = <&vreg_l3e_1p2>;
 	status = "okay";
+
+	panel@0 {
+		compatible = "visionox,vtdr6130";
+		reg = <0>;
+
+		pinctrl-names = "default", "sleep";
+		pinctrl-0 = <&sde_dsi_active>, <&sde_te_active>;
+		pinctrl-1 = <&sde_dsi_suspend>, <&sde_te_suspend>;
+
+		vddio-supply = <&vreg_l12b_1p8>;
+		vci-supply = <&vreg_l13b_3p0>;
+		vdd-supply = <&vreg_l11b_1p2>;
+
+		reset-gpios = <&tlmm 133 GPIO_ACTIVE_LOW>;
+
+		status = "okay";
+
+		port {
+			panel0_in: endpoint {
+				remote-endpoint = <&mdss_dsi0_out>;
+			};
+		};
+	};
+};
+
+&mdss_dsi0_out {
+	remote-endpoint = <&panel0_in>;
+	data-lanes = <0 1 2 3>;
 };
 
 &mdss_dsi0_phy {
@@ -415,6 +443,34 @@ &sleep_clk {
 
 &tlmm {
 	gpio-reserved-ranges = <32 8>;
+
+	sde_dsi_active: sde-dsi-active-state {
+		pins = "gpio133";
+		function = "gpio";
+		drive-strength = <8>;
+		bias-disable;
+	};
+
+	sde_dsi_suspend: sde-dsi-suspend-state {
+		pins = "gpio133";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-pull-down;
+	};
+
+	sde_te_active: sde-te-active-state {
+		pins = "gpio86";
+		function = "mdp_vsync";
+		drive-strength = <2>;
+		bias-pull-down;
+	};
+
+	sde_te_suspend: sde-te-suspend-state {
+		pins = "gpio86";
+		function = "mdp_vsync";
+		drive-strength = <2>;
+		bias-pull-down;
+	};
 };
 
 &uart7 {

-- 
2.34.1
Re: [PATCH v3 3/3] arm64: dts: qcom: sm8550-mtp: add DSI panel
Posted by Konrad Dybcio 3 years ago 

On 18.01.2023 09:55, Neil Armstrong wrote:
> Add nodes for the Visionox VTDR6130 found on the SM8550-MTP
> device.
> 
> TLMM states are also added for the Panel reset GPIO and
> Tearing Effect signal for when the panel is running in
> DSI Command mode.
> 
> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
> ---
>  arch/arm64/boot/dts/qcom/sm8550-mtp.dts | 56 +++++++++++++++++++++++++++++++++
>  1 file changed, 56 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8550-mtp.dts b/arch/arm64/boot/dts/qcom/sm8550-mtp.dts
> index 0dfd1d3db86c..2de387aa2c2d 100644
> --- a/arch/arm64/boot/dts/qcom/sm8550-mtp.dts
> +++ b/arch/arm64/boot/dts/qcom/sm8550-mtp.dts
> @@ -370,6 +370,34 @@ &mdss {
>  &mdss_dsi0 {
>  	vdda-supply = <&vreg_l3e_1p2>;
>  	status = "okay";
> +
> +	panel@0 {
> +		compatible = "visionox,vtdr6130";
> +		reg = <0>;
> +
> +		pinctrl-names = "default", "sleep";
> +		pinctrl-0 = <&sde_dsi_active>, <&sde_te_active>;
> +		pinctrl-1 = <&sde_dsi_suspend>, <&sde_te_suspend>;
Hm.. I've just realized there are two styles of specifying
phandle arrays: <&a &b> and <&a>, <&b>.. even worse, we
have both of them in our tree.. Krzysztof, Bjorn, which one
should we go with, going forward?


> +
> +		vddio-supply = <&vreg_l12b_1p8>;
> +		vci-supply = <&vreg_l13b_3p0>;
> +		vdd-supply = <&vreg_l11b_1p2>;
> +
> +		reset-gpios = <&tlmm 133 GPIO_ACTIVE_LOW>;
> +
> +		status = "okay";
Superfluous, it's enabled by default, drop

Konrad
> +
> +		port {
> +			panel0_in: endpoint {
> +				remote-endpoint = <&mdss_dsi0_out>;
> +			};
> +		};
> +	};
> +};
> +
> +&mdss_dsi0_out {
> +	remote-endpoint = <&panel0_in>;
> +	data-lanes = <0 1 2 3>;
>  };
>  
>  &mdss_dsi0_phy {
> @@ -415,6 +443,34 @@ &sleep_clk {
>  
>  &tlmm {
>  	gpio-reserved-ranges = <32 8>;
> +
> +	sde_dsi_active: sde-dsi-active-state {
> +		pins = "gpio133";
> +		function = "gpio";
> +		drive-strength = <8>;
> +		bias-disable;
> +	};
> +
> +	sde_dsi_suspend: sde-dsi-suspend-state {
> +		pins = "gpio133";
> +		function = "gpio";
> +		drive-strength = <2>;
> +		bias-pull-down;
> +	};
> +
> +	sde_te_active: sde-te-active-state {
> +		pins = "gpio86";
> +		function = "mdp_vsync";
> +		drive-strength = <2>;
> +		bias-pull-down;
> +	};
> +
> +	sde_te_suspend: sde-te-suspend-state {
> +		pins = "gpio86";
> +		function = "mdp_vsync";
> +		drive-strength = <2>;
> +		bias-pull-down;
> +	};
>  };
>  
>  &uart7 {
>
Re: [PATCH v3 3/3] arm64: dts: qcom: sm8550-mtp: add DSI panel
Posted by Neil Armstrong 3 years ago 
On 18/01/2023 14:36, Konrad Dybcio wrote:
> 
> 
> On 18.01.2023 09:55, Neil Armstrong wrote:
>> Add nodes for the Visionox VTDR6130 found on the SM8550-MTP
>> device.
>>
>> TLMM states are also added for the Panel reset GPIO and
>> Tearing Effect signal for when the panel is running in
>> DSI Command mode.
>>
>> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
>> ---
>>   arch/arm64/boot/dts/qcom/sm8550-mtp.dts | 56 +++++++++++++++++++++++++++++++++
>>   1 file changed, 56 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/sm8550-mtp.dts b/arch/arm64/boot/dts/qcom/sm8550-mtp.dts
>> index 0dfd1d3db86c..2de387aa2c2d 100644
>> --- a/arch/arm64/boot/dts/qcom/sm8550-mtp.dts
>> +++ b/arch/arm64/boot/dts/qcom/sm8550-mtp.dts
>> @@ -370,6 +370,34 @@ &mdss {
>>   &mdss_dsi0 {
>>   	vdda-supply = <&vreg_l3e_1p2>;
>>   	status = "okay";
>> +
>> +	panel@0 {
>> +		compatible = "visionox,vtdr6130";
>> +		reg = <0>;
>> +
>> +		pinctrl-names = "default", "sleep";
>> +		pinctrl-0 = <&sde_dsi_active>, <&sde_te_active>;
>> +		pinctrl-1 = <&sde_dsi_suspend>, <&sde_te_suspend>;
> Hm.. I've just realized there are two styles of specifying
> phandle arrays: <&a &b> and <&a>, <&b>.. even worse, we
> have both of them in our tree.. Krzysztof, Bjorn, which one
> should we go with, going forward?

I've been cleaning into <&a>, <&b> for the last few years and
it clearer since it separates each phandle (+ parameters) in the DTS.

Neil

> 
> 
>> +
>> +		vddio-supply = <&vreg_l12b_1p8>;
>> +		vci-supply = <&vreg_l13b_3p0>;
>> +		vdd-supply = <&vreg_l11b_1p2>;
>> +
>> +		reset-gpios = <&tlmm 133 GPIO_ACTIVE_LOW>;
>> +
>> +		status = "okay";
> Superfluous, it's enabled by default, drop

Ack, will remove

> 
> Konrad
>> +
>> +		port {
>> +			panel0_in: endpoint {
>> +				remote-endpoint = <&mdss_dsi0_out>;
>> +			};
>> +		};
>> +	};
>> +};
>> +
>> +&mdss_dsi0_out {
>> +	remote-endpoint = <&panel0_in>;
>> +	data-lanes = <0 1 2 3>;
>>   };
>>   
>>   &mdss_dsi0_phy {
>> @@ -415,6 +443,34 @@ &sleep_clk {
>>   
>>   &tlmm {
>>   	gpio-reserved-ranges = <32 8>;
>> +
>> +	sde_dsi_active: sde-dsi-active-state {
>> +		pins = "gpio133";
>> +		function = "gpio";
>> +		drive-strength = <8>;
>> +		bias-disable;
>> +	};
>> +
>> +	sde_dsi_suspend: sde-dsi-suspend-state {
>> +		pins = "gpio133";
>> +		function = "gpio";
>> +		drive-strength = <2>;
>> +		bias-pull-down;
>> +	};
>> +
>> +	sde_te_active: sde-te-active-state {
>> +		pins = "gpio86";
>> +		function = "mdp_vsync";
>> +		drive-strength = <2>;
>> +		bias-pull-down;
>> +	};
>> +
>> +	sde_te_suspend: sde-te-suspend-state {
>> +		pins = "gpio86";
>> +		function = "mdp_vsync";
>> +		drive-strength = <2>;
>> +		bias-pull-down;
>> +	};
>>   };
>>   
>>   &uart7 {
>>
Re: [PATCH v3 3/3] arm64: dts: qcom: sm8550-mtp: add DSI panel
Posted by Krzysztof Kozlowski 3 years ago 
On 18/01/2023 09:55, Neil Armstrong wrote:
> Add nodes for the Visionox VTDR6130 found on the SM8550-MTP
> device.
> 
> TLMM states are also added for the Panel reset GPIO and
> Tearing Effect signal for when the panel is running in
> DSI Command mode.
> 
> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
> ---
>  arch/arm64/boot/dts/qcom/sm8550-mtp.dts | 56 +++++++++++++++++++++++++++++++++
>  1 file changed, 56 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8550-mtp.dts b/arch/arm64/boot/dts/qcom/sm8550-mtp.dts
> index 0dfd1d3db86c..2de387aa2c2d 100644
> --- a/arch/arm64/boot/dts/qcom/sm8550-mtp.dts
> +++ b/arch/arm64/boot/dts/qcom/sm8550-mtp.dts
> @@ -370,6 +370,34 @@ &mdss {
>  &mdss_dsi0 {
>  	vdda-supply = <&vreg_l3e_1p2>;
>  	status = "okay";
> +
> +	panel@0 {
> +		compatible = "visionox,vtdr6130";
> +		reg = <0>;
> +
> +		pinctrl-names = "default", "sleep";
> +		pinctrl-0 = <&sde_dsi_active>, <&sde_te_active>;
> +		pinctrl-1 = <&sde_dsi_suspend>, <&sde_te_suspend>;
> +
> +		vddio-supply = <&vreg_l12b_1p8>;
> +		vci-supply = <&vreg_l13b_3p0>;
> +		vdd-supply = <&vreg_l11b_1p2>;
> +
> +		reset-gpios = <&tlmm 133 GPIO_ACTIVE_LOW>;
> +
> +		status = "okay";

No need unless you override existing device node.

> +
> +		port {
> +			panel0_in: endpoint {
> +				remote-endpoint = <&mdss_dsi0_out>;
> +			};
> +		};
> +	};
> +};
Best regards,
Krzysztof

Patchew 2.1-devel-b67e4c2

© 2016 - 2026 Red Hat, Inc.