2024-04-25 07:14:21

by Prahlad Valluru

Subject: [PATCH] arm64: dts: qcom: qcs6490-rb3gen2: enable hdmi bridge

Enable lt9611uxc bridge for qcs6490 rb3 gen2 platform.

Signed-off-by: Prahlad Valluru <[email protected]>
---
arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 86 ++++++++++++++++++++
1 file changed, 86 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
index a085ff5b5fb2..ff963f94c0e3 100644
--- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
+++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
@@ -51,6 +51,18 @@
};
};
};
+
+ hdmi-connector {
+ compatible = "hdmi-connector";
+ label = "HDMI";
+ type = "a";
+
+ port {
+ hdmi_con: endpoint {
+ remote-endpoint = <&lt9611_out>;
+ };
+ };
+ };

reserved-memory {
xbl_mem: xbl@80700000 {
@@ -530,6 +542,45 @@
<GCC_WPSS_RSCP_CLK>;
};

+&i2c0 {
+ clock-frequency = <400000>;
+ status = "okay";
+
+ lt9611_codec: hdmi-bridge@2b {
+ compatible = "lontium,lt9611uxc";
+ reg = <0x2b>;
+
+ interrupts-extended = <&tlmm 24 IRQ_TYPE_EDGE_FALLING>;
+ reset-gpios = <&pm7250b_gpios 2 GPIO_ACTIVE_HIGH>;
+
+ vcc-supply = <&vreg_l11c_2p8>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&lt9611_irq_pin &lt9611_rst_pin>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ lt9611_a: endpoint {
+ remote-endpoint = <&mdss_dsi0_out>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+
+ lt9611_out: endpoint {
+ remote-endpoint = <&hdmi_con>;
+ };
+ };
+ };
+ };
+};
+
&i2c1 {
status = "okay";

@@ -602,6 +653,21 @@
status = "okay";
};

+&mdss_dsi {
+ vdda-supply = <&vreg_l6b_1p2>;
+ status = "okay";
+};
+
+&mdss_dsi0_out {
+ remote-endpoint = <&lt9611_a>;
+ data-lanes = <0 1 2 3>;
+};
+
+&mdss_dsi_phy {
+ vdds-supply = <&vreg_l10c_0p88>;
+ status = "okay";
+};
+
&qupv3_id_0 {
status = "okay";
};
@@ -711,3 +777,23 @@
function = "gpio";
bias-disable;
};
+
+&pm7250b_gpios {
+ lt9611_rst_pin: lt9611-rst-state {
+ pins = "gpio2";
+ function = "normal";
+
+ output-high;
+ input-disable;
+ power-source = <0>;
+ };
+};
+
+&tlmm {
+ lt9611_irq_pin: lt9611-irq {
+ pins = "gpio24";
+ function = "gpio";
+ drive-strength = <8>;
+ bias-disable;
+ };
+};
--
2.17.1

2024-04-25 14:51:45

by Rob Herring (Arm)

Subject: Re: [PATCH] arm64: dts: qcom: qcs6490-rb3gen2: enable hdmi bridge

On Thu, 25 Apr 2024 12:43:54 +0530, Venkata Prahlad Valluru wrote:
> Enable lt9611uxc bridge for qcs6490 rb3 gen2 platform.
>
> Signed-off-by: Prahlad Valluru <[email protected]>
> ---
> arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 86 ++++++++++++++++++++
> 1 file changed, 86 insertions(+)
>


My bot found new DTB warnings on the .dts files added or changed in this
series.

Some warnings may be from an existing SoC .dtsi. Or perhaps the warnings
are fixed by another series. Ultimately, it is up to the platform
maintainer whether these warnings are acceptable or not. No need to reply
unless the platform maintainer has comments.

If you already ran DT checks and didn't see these error(s), then
make sure dt-schema is up to date:

pip3 install dtschema --upgrade


New warnings running 'make CHECK_DTBS=y qcom/qcs6490-rb3gen2.dtb' for [email protected]:

arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dtb: hdmi-bridge@2b: 'vdd-supply' is a required property
from schema $id: http://devicetree.org/schemas/display/bridge/lontium,lt9611.yaml#
arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dtb: pinctrl@f100000: Unevaluated properties are not allowed ('lt9611-irq' was unexpected)
from schema $id: http://devicetree.org/schemas/pinctrl/qcom,sc7280-pinctrl.yaml#

2024-04-26 14:27:58

by Prahlad Valluru

Subject: [PATCH v2] arm64: dts: qcom: qcs6490-rb3gen2: enable hdmi bridge

From: Venkata Prahlad Valluru <[email protected]>

Enable lt9611uxc bridge for qcs6490 rb3 gen2 platform.

Signed-off-by: Prahlad Valluru <[email protected]>
---
v2: Addressed dtschema errors
- Fixed lt9611-irq
- vdd-supply error to be ignored, as it is connected to
input supply directly, on rb3gen2
---
arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 86 ++++++++++++++++++++
1 file changed, 86 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
index a085ff5b5fb2..c14d4a4bb3ce 100644
--- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
+++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
@@ -51,6 +51,18 @@
};
};
};
+
+ hdmi-connector {
+ compatible = "hdmi-connector";
+ label = "HDMI";
+ type = "a";
+
+ port {
+ hdmi_con: endpoint {
+ remote-endpoint = <&lt9611_out>;
+ };
+ };
+ };

reserved-memory {
xbl_mem: xbl@80700000 {
@@ -530,6 +542,45 @@
<GCC_WPSS_RSCP_CLK>;
};

+&i2c0 {
+ clock-frequency = <400000>;
+ status = "okay";
+
+ lt9611_codec: hdmi-bridge@2b {
+ compatible = "lontium,lt9611uxc";
+ reg = <0x2b>;
+
+ interrupts-extended = <&tlmm 24 IRQ_TYPE_EDGE_FALLING>;
+ reset-gpios = <&pm7250b_gpios 2 GPIO_ACTIVE_HIGH>;
+
+ vcc-supply = <&vreg_l11c_2p8>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&lt9611_irq_pin &lt9611_rst_pin>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ lt9611_a: endpoint {
+ remote-endpoint = <&mdss_dsi0_out>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+
+ lt9611_out: endpoint {
+ remote-endpoint = <&hdmi_con>;
+ };
+ };
+ };
+ };
+};
+
&i2c1 {
status = "okay";

@@ -602,6 +653,21 @@
status = "okay";
};

+&mdss_dsi {
+ vdda-supply = <&vreg_l6b_1p2>;
+ status = "okay";
+};
+
+&mdss_dsi0_out {
+ remote-endpoint = <&lt9611_a>;
+ data-lanes = <0 1 2 3>;
+};
+
+&mdss_dsi_phy {
+ vdds-supply = <&vreg_l10c_0p88>;
+ status = "okay";
+};
+
&qupv3_id_0 {
status = "okay";
};
@@ -711,3 +777,23 @@
function = "gpio";
bias-disable;
};
+
+&pm7250b_gpios {
+ lt9611_rst_pin: lt9611-rst-state {
+ pins = "gpio2";
+ function = "normal";
+
+ output-high;
+ input-disable;
+ power-source = <0>;
+ };
+};
+
+&tlmm {
+ lt9611_irq_pin: lt9611-irq-state {
+ pins = "gpio24";
+ function = "gpio";
+ drive-strength = <8>;
+ bias-disable;
+ };
+};
--
2.17.1

2024-05-06 19:55:01

by Abhinav Kumar

Subject: Re: [PATCH v2] arm64: dts: qcom: qcs6490-rb3gen2: enable hdmi bridge

On 4/26/2024 7:24 AM, Prahlad Valluru wrote:
> From: Venkata Prahlad Valluru <[email protected]>
>
> Enable lt9611uxc bridge for qcs6490 rb3 gen2 platform.
>
> Signed-off-by: Prahlad Valluru <[email protected]>
> ---

Why is there a mismatch between your author name and signed off name?

> v2: Addressed dtschema errors
> - Fixed lt9611-irq
> - vdd-supply error to be ignored, as it is connected to
> input supply directly, on rb3gen2
> ---
> arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 86 ++++++++++++++++++++
> 1 file changed, 86 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> index a085ff5b5fb2..c14d4a4bb3ce 100644
> --- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> +++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> @@ -51,6 +51,18 @@
> };
> };
> };
> +
> + hdmi-connector {
> + compatible = "hdmi-connector";
> + label = "HDMI";

Is label mandatory? Doesn't seem so?

Rest LGTM.

> + type = "a";
> +
> + port {
> + hdmi_con: endpoint {
> + remote-endpoint = <&lt9611_out>;
> + };
> + };
> + };
>
> reserved-memory {
> xbl_mem: xbl@80700000 {
> @@ -530,6 +542,45 @@
> <GCC_WPSS_RSCP_CLK>;
> };
>
> +&i2c0 {
> + clock-frequency = <400000>;
> + status = "okay";
> +
> + lt9611_codec: hdmi-bridge@2b {
> + compatible = "lontium,lt9611uxc";
> + reg = <0x2b>;
> +
> + interrupts-extended = <&tlmm 24 IRQ_TYPE_EDGE_FALLING>;
> + reset-gpios = <&pm7250b_gpios 2 GPIO_ACTIVE_HIGH>;
> +
> + vcc-supply = <&vreg_l11c_2p8>;
> +
> + pinctrl-names = "default";
> + pinctrl-0 = <&lt9611_irq_pin &lt9611_rst_pin>;
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> +
> + lt9611_a: endpoint {
> + remote-endpoint = <&mdss_dsi0_out>;
> + };
> + };
> +
> + port@2 {
> + reg = <2>;
> +
> + lt9611_out: endpoint {
> + remote-endpoint = <&hdmi_con>;
> + };
> + };
> + };
> + };
> +};
> +
> &i2c1 {
> status = "okay";
>
> @@ -602,6 +653,21 @@
> status = "okay";
> };
>
> +&mdss_dsi {
> + vdda-supply = <&vreg_l6b_1p2>;
> + status = "okay";
> +};
> +
> +&mdss_dsi0_out {
> + remote-endpoint = <&lt9611_a>;
> + data-lanes = <0 1 2 3>;
> +};
> +
> +&mdss_dsi_phy {
> + vdds-supply = <&vreg_l10c_0p88>;
> + status = "okay";
> +};
> +
> &qupv3_id_0 {
> status = "okay";
> };
> @@ -711,3 +777,23 @@
> function = "gpio";
> bias-disable;
> };
> +
> +&pm7250b_gpios {
> + lt9611_rst_pin: lt9611-rst-state {
> + pins = "gpio2";
> + function = "normal";
> +
> + output-high;
> + input-disable;
> + power-source = <0>;
> + };
> +};
> +
> +&tlmm {
> + lt9611_irq_pin: lt9611-irq-state {
> + pins = "gpio24";
> + function = "gpio";
> + drive-strength = <8>;
> + bias-disable;
> + };
> +};

2024-05-06 23:14:30

by Bjorn Andersson

Subject: Re: [PATCH v2] arm64: dts: qcom: qcs6490-rb3gen2: enable hdmi bridge

On Fri, Apr 26, 2024 at 07:54:42PM GMT, Prahlad Valluru wrote:
> From: Venkata Prahlad Valluru <[email protected]>
>

Please don't thread new versions off existing version. b4 helps you with
getting these things right, please check go/upstream for more details.

> Enable lt9611uxc bridge for qcs6490 rb3 gen2 platform.
>

Even if it's clear what this is, I would prefer if you described the
hardware a little bit in your commit message.
"Rb3Gen2 has a HDMI connector, connected to DSI via a LT on i2cX.... reset and
irq pins comes from x and y. Describe this."

> Signed-off-by: Prahlad Valluru <[email protected]>
> ---
> v2: Addressed dtschema errors
> - Fixed lt9611-irq
> - vdd-supply error to be ignored, as it is connected to
> input supply directly, on rb3gen2
> ---
> arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 86 ++++++++++++++++++++
> 1 file changed, 86 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> index a085ff5b5fb2..c14d4a4bb3ce 100644
> --- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> +++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> @@ -51,6 +51,18 @@
> };
> };
> };
> +

There's a stray tab here, please run checkpatch --strict on your
patches.

> + hdmi-connector {
> + compatible = "hdmi-connector";
> + label = "HDMI";
> + type = "a";
> +
> + port {
> + hdmi_con: endpoint {
> + remote-endpoint = <&lt9611_out>;
> + };
> + };
> + };
>
> reserved-memory {
> xbl_mem: xbl@80700000 {
> @@ -530,6 +542,45 @@
[..]
> @@ -602,6 +653,21 @@
> status = "okay";
> };
>
> +&mdss_dsi {

We want to keep nodes sorted (by address if applicable, otherwise
alphabetically on node names and on labels). "mdss_dsi" < "mdss_edp".

So please move this up where it belongs.

> + vdda-supply = <&vreg_l6b_1p2>;
> + status = "okay";
> +};
> +
> +&mdss_dsi0_out {
> + remote-endpoint = <&lt9611_a>;
> + data-lanes = <0 1 2 3>;
> +};
> +
> +&mdss_dsi_phy {
> + vdds-supply = <&vreg_l10c_0p88>;
> + status = "okay";
> +};
> +
> &qupv3_id_0 {
> status = "okay";
> };
> @@ -711,3 +777,23 @@
> function = "gpio";
> bias-disable;
> };
> +
> +&pm7250b_gpios {
> + lt9611_rst_pin: lt9611-rst-state {
> + pins = "gpio2";
> + function = "normal";
> +
> + output-high;
> + input-disable;
> + power-source = <0>;
> + };
> +};
> +
> +&tlmm {
> + lt9611_irq_pin: lt9611-irq-state {
> + pins = "gpio24";
> + function = "gpio";
> + drive-strength = <8>;

I'd expect a 2 here, so please document why this is 8.

Regards,
Bjorn

> + bias-disable;
> + };
> +};
> --
> 2.17.1
>

2024-05-07 16:45:01

by Prahlad Valluru

Subject: [PATCH v3] arm64: dts: qcom: qcs6490-rb3gen2: enable hdmi bridge

Rb3Gen2 has a lt9611uxc DSI-to-HDMI bridge on i2c0, with
reset gpio from pm7250b gpio2 and irq gpio from tlmm gpio24.
Bridge supplies are Vdd connected to input supply directly
and vcc to L11c. Enable HDMI output, bridge and corresponding
DSI output.

Signed-off-by: Venkata Prahlad Valluru <[email protected]>
---
v3: - Updated commit text
- Arranged nodes in alphabetical order
- Fixed signoff
- Fixed drive strength for lt9611_irq_pin
- Removed 'label' from hdmi-connector, which is optional

v2: Addressed dtschema errors
- Fixed lt9611-irq
- vdd-supply error to be ignored, as it is connected to
input supply directly, on rb3gen2
---
arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 85 ++++++++++++++++++++
1 file changed, 85 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
index a085ff5b5fb2..24b0b9525ea4 100644
--- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
+++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
@@ -52,6 +52,17 @@
};
};

+ hdmi-connector {
+ compatible = "hdmi-connector";
+ type = "a";
+
+ port {
+ hdmi_con: endpoint {
+ remote-endpoint = <&lt9611_out>;
+ };
+ };
+ };
+
reserved-memory {
xbl_mem: xbl@80700000 {
reg = <0x0 0x80700000 0x0 0x100000>;
@@ -530,6 +541,45 @@
<GCC_WPSS_RSCP_CLK>;
};

+&i2c0 {
+ clock-frequency = <400000>;
+ status = "okay";
+
+ lt9611_codec: hdmi-bridge@2b {
+ compatible = "lontium,lt9611uxc";
+ reg = <0x2b>;
+
+ interrupts-extended = <&tlmm 24 IRQ_TYPE_EDGE_FALLING>;
+ reset-gpios = <&pm7250b_gpios 2 GPIO_ACTIVE_HIGH>;
+
+ vcc-supply = <&vreg_l11c_2p8>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&lt9611_irq_pin &lt9611_rst_pin>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ lt9611_a: endpoint {
+ remote-endpoint = <&mdss_dsi0_out>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+
+ lt9611_out: endpoint {
+ remote-endpoint = <&hdmi_con>;
+ };
+ };
+ };
+ };
+};
+
&i2c1 {
status = "okay";

@@ -587,6 +637,21 @@
remote-endpoint = <&usb_dp_qmpphy_dp_in>;
};

+&mdss_dsi {
+ vdda-supply = <&vreg_l6b_1p2>;
+ status = "okay";
+};
+
+&mdss_dsi0_out {
+ remote-endpoint = <&lt9611_a>;
+ data-lanes = <0 1 2 3>;
+};
+
+&mdss_dsi_phy {
+ vdds-supply = <&vreg_l10c_0p88>;
+ status = "okay";
+};
+
&mdss_edp {
status = "okay";
};
@@ -711,3 +776,23 @@
function = "gpio";
bias-disable;
};
+
+&pm7250b_gpios {
+ lt9611_rst_pin: lt9611-rst-state {
+ pins = "gpio2";
+ function = "normal";
+
+ output-high;
+ input-disable;
+ power-source = <0>;
+ };
+};
+
+&tlmm {
+ lt9611_irq_pin: lt9611-irq-state {
+ pins = "gpio24";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-disable;
+ };
+};
--
2.17.1

2024-05-07 18:43:51

by Abhinav Kumar

Subject: Re: [PATCH v3] arm64: dts: qcom: qcs6490-rb3gen2: enable hdmi bridge

On 5/7/2024 9:30 AM, Venkata Prahlad Valluru wrote:
> Rb3Gen2 has a lt9611uxc DSI-to-HDMI bridge on i2c0, with
> reset gpio from pm7250b gpio2 and irq gpio from tlmm gpio24.
> Bridge supplies are Vdd connected to input supply directly
> and vcc to L11c. Enable HDMI output, bridge and corresponding
> DSI output.
>
> Signed-off-by: Venkata Prahlad Valluru <[email protected]>
> ---
> v3: - Updated commit text
> - Arranged nodes in alphabetical order
> - Fixed signoff
> - Fixed drive strength for lt9611_irq_pin
> - Removed 'label' from hdmi-connector, which is optional
>
> v2: Addressed dtschema errors
> - Fixed lt9611-irq
> - vdd-supply error to be ignored, as it is connected to
> input supply directly, on rb3gen2
> ---
> arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 85 ++++++++++++++++++++
> 1 file changed, 85 insertions(+)
>

Reviewed-by: Abhinav Kumar <[email protected]>

2024-05-08 10:22:26

by Prahlad Valluru

Subject: Re: [PATCH v2] arm64: dts: qcom: qcs6490-rb3gen2: enable hdmi bridge

On Mon, May 06, 2024 at 06:14:10PM -0500, Bjorn Andersson wrote:
> On Fri, Apr 26, 2024 at 07:54:42PM GMT, Prahlad Valluru wrote:
> > From: Venkata Prahlad Valluru <[email protected]>
> >
>
> Please don't thread new versions off existing version. b4 helps you with
> getting these things right, please check go/upstream for more details.

My internal gitconfig is not configured correctly. Fixed in v3.

>
> > Enable lt9611uxc bridge for qcs6490 rb3 gen2 platform.
> >
>
> Even if it's clear what this is, I would prefer if you described the
> hardware a little bit in your commit message.
> "Rb3Gen2 has a HDMI connector, connected to DSI via a LT on i2cX.... reset and
> irq pins comes from x and y. Describe this."
>

Agreed. Updated the commit text to include bridge details.

> > Signed-off-by: Prahlad Valluru <[email protected]>
> > ---
> > v2: Addressed dtschema errors
> > - Fixed lt9611-irq
> > - vdd-supply error to be ignored, as it is connected to
> > input supply directly, on rb3gen2
> > ---
> > arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 86 ++++++++++++++++++++
> > 1 file changed, 86 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> > index a085ff5b5fb2..c14d4a4bb3ce 100644
> > --- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> > +++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> > @@ -51,6 +51,18 @@
> > };
> > };
> > };
> > +
>
> There's a stray tab here, please run checkpatch --strict on your
> patches.

Fixed the checkpatch issues.

>
> > + hdmi-connector {
> > + compatible = "hdmi-connector";
> > + label = "HDMI";
> > + type = "a";
> > +
> > + port {
> > + hdmi_con: endpoint {
> > + remote-endpoint = <&lt9611_out>;
> > + };
> > + };
> > + };
> >
> > reserved-memory {
> > xbl_mem: xbl@80700000 {
> > @@ -530,6 +542,45 @@
> [..]
> > @@ -602,6 +653,21 @@
> > status = "okay";
> > };
> >
> > +&mdss_dsi {
>
> We want to keep nodes sorted (by address if applicable, otherwise
> alphabetically on node names and on labels). "mdss_dsi" < "mdss_edp".
>
> So please move this up where it belongs.
>

Moved the dsi nodes on top of edp. Didn't realise this.

> > + vdda-supply = <&vreg_l6b_1p2>;
> > + status = "okay";
> > +};
> > +
> > +&mdss_dsi0_out {
> > + remote-endpoint = <&lt9611_a>;
> > + data-lanes = <0 1 2 3>;
> > +};
> > +
> > +&mdss_dsi_phy {
> > + vdds-supply = <&vreg_l10c_0p88>;
> > + status = "okay";
> > +};
> > +
> > &qupv3_id_0 {
> > status = "okay";
> > };
> > @@ -711,3 +777,23 @@
> > function = "gpio";
> > bias-disable;
> > };
> > +
> > +&pm7250b_gpios {
> > + lt9611_rst_pin: lt9611-rst-state {
> > + pins = "gpio2";
> > + function = "normal";
> > +
> > + output-high;
> > + input-disable;
> > + power-source = <0>;
> > + };
> > +};
> > +
> > +&tlmm {
> > + lt9611_irq_pin: lt9611-irq-state {
> > + pins = "gpio24";
> > + function = "gpio";
> > + drive-strength = <8>;
>
> I'd expect a 2 here, so please document why this is 8.

Accepted. I dont see any reason to have drive strength 8.

>
> Regards,
> Bjorn
>
> > + bias-disable;
> > + };
> > +};
> > --
> > 2.17.1
> >

2024-05-08 10:48:23

by Dmitry Baryshkov

Subject: Re: [PATCH v2] arm64: dts: qcom: qcs6490-rb3gen2: enable hdmi bridge

On Wed, 8 May 2024 at 13:22, Prahlad Valluru <[email protected]> wrote:
>
> On Mon, May 06, 2024 at 06:14:10PM -0500, Bjorn Andersson wrote:
> > On Fri, Apr 26, 2024 at 07:54:42PM GMT, Prahlad Valluru wrote:
> > > From: Venkata Prahlad Valluru <[email protected]>
> > >
> >
> > Please don't thread new versions off existing version. b4 helps you with
> > getting these things right, please check go/upstream for more details.
>
> My internal gitconfig is not configured correctly. Fixed in v3.

No. V3 was still sent as a reply. Please fix the way you are sending
the patches. It has nothing to do with the git config.

>
> >
> > > Enable lt9611uxc bridge for qcs6490 rb3 gen2 platform.
> > >
> >
> > Even if it's clear what this is, I would prefer if you described the
> > hardware a little bit in your commit message.
> > "Rb3Gen2 has a HDMI connector, connected to DSI via a LT on i2cX.... reset and
> > irq pins comes from x and y. Describe this."
> >
>
> Agreed. Updated the commit text to include bridge details.

>


--
With best wishes
Dmitry

2024-05-08 14:31:43

by Rob Herring (Arm)

Subject: Re: [PATCH v2] arm64: dts: qcom: qcs6490-rb3gen2: enable hdmi bridge

On Mon, 06 May 2024 18:14:10 -0500, Bjorn Andersson wrote:
> On Fri, Apr 26, 2024 at 07:54:42PM GMT, Prahlad Valluru wrote:
> > From: Venkata Prahlad Valluru <[email protected]>
> >
>
> Please don't thread new versions off existing version. b4 helps you with
> getting these things right, please check go/upstream for more details.
>
> > Enable lt9611uxc bridge for qcs6490 rb3 gen2 platform.
> >
>
> Even if it's clear what this is, I would prefer if you described the
> hardware a little bit in your commit message.
> "Rb3Gen2 has a HDMI connector, connected to DSI via a LT on i2cX.... reset and
> irq pins comes from x and y. Describe this."
>
> > Signed-off-by: Prahlad Valluru <[email protected]>
> > ---
> > v2: Addressed dtschema errors
> > - Fixed lt9611-irq
> > - vdd-supply error to be ignored, as it is connected to
> > input supply directly, on rb3gen2

The choice is either fix the dts or fix the binding.

> > ---
> > arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 86 ++++++++++++++++++++
> > 1 file changed, 86 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> > index a085ff5b5fb2..c14d4a4bb3ce 100644
> > --- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> > +++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> > @@ -51,6 +51,18 @@
> > };
> > };
> > };
> > +
>
> There's a stray tab here, please run checkpatch --strict on your
> patches.
>
> > + hdmi-connector {
> > + compatible = "hdmi-connector";
> > + label = "HDMI";
> > + type = "a";
> > +
> > + port {
> > + hdmi_con: endpoint {
> > + remote-endpoint = <&lt9611_out>;
> > + };
> > + };
> > + };
> >
> > reserved-memory {
> > xbl_mem: xbl@80700000 {
> > @@ -530,6 +542,45 @@
> [..]
> > @@ -602,6 +653,21 @@
> > status = "okay";
> > };
> >
> > +&mdss_dsi {
>
> We want to keep nodes sorted (by address if applicable, otherwise
> alphabetically on node names and on labels). "mdss_dsi" < "mdss_edp".
>
> So please move this up where it belongs.
>
> > + vdda-supply = <&vreg_l6b_1p2>;
> > + status = "okay";
> > +};
> > +
> > +&mdss_dsi0_out {
> > + remote-endpoint = <&lt9611_a>;
> > + data-lanes = <0 1 2 3>;
> > +};
> > +
> > +&mdss_dsi_phy {
> > + vdds-supply = <&vreg_l10c_0p88>;
> > + status = "okay";
> > +};
> > +
> > &qupv3_id_0 {
> > status = "okay";
> > };
> > @@ -711,3 +777,23 @@
> > function = "gpio";
> > bias-disable;
> > };
> > +
> > +&pm7250b_gpios {
> > + lt9611_rst_pin: lt9611-rst-state {
> > + pins = "gpio2";
> > + function = "normal";
> > +
> > + output-high;
> > + input-disable;
> > + power-source = <0>;
> > + };
> > +};
> > +
> > +&tlmm {
> > + lt9611_irq_pin: lt9611-irq-state {
> > + pins = "gpio24";
> > + function = "gpio";
> > + drive-strength = <8>;
>
> I'd expect a 2 here, so please document why this is 8.
>
> Regards,
> Bjorn
>
> > + bias-disable;
> > + };
> > +};
> > --
> > 2.17.1
> >
>
>


My bot found new DTB warnings on the .dts files added or changed in this
series.

Some warnings may be from an existing SoC .dtsi. Or perhaps the warnings
are fixed by another series. Ultimately, it is up to the platform
maintainer whether these warnings are acceptable or not. No need to reply
unless the platform maintainer has comments.

If you already ran DT checks and didn't see these error(s), then
make sure dt-schema is up to date:

pip3 install dtschema --upgrade


New warnings running 'make CHECK_DTBS=y qcom/qcs6490-rb3gen2.dtb' for jr3ble6sxr5mr6cvm6ldvpyk5j4rucj3xy6vbha6ttoecte3d7@llu6qf6oasuc:

arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dtb: hdmi-bridge@2b: 'vdd-supply' is a required property
from schema $id: http://devicetree.org/schemas/display/bridge/lontium,lt9611.yaml#

2024-05-15 15:05:46

by Prahlad Valluru

Subject: Re: [PATCH v2] arm64: dts: qcom: qcs6490-rb3gen2: enable hdmi bridge

On Wed, May 08, 2024 at 09:31:24AM -0500, Rob Herring (Arm) wrote:
>
> On Mon, 06 May 2024 18:14:10 -0500, Bjorn Andersson wrote:
> > On Fri, Apr 26, 2024 at 07:54:42PM GMT, Prahlad Valluru wrote:
> > > From: Venkata Prahlad Valluru <[email protected]>
> > >
> >
> > Please don't thread new versions off existing version. b4 helps you with
> > getting these things right, please check go/upstream for more details.
> >
> > > Enable lt9611uxc bridge for qcs6490 rb3 gen2 platform.
> > >
> >
> > Even if it's clear what this is, I would prefer if you described the
> > hardware a little bit in your commit message.
> > "Rb3Gen2 has a HDMI connector, connected to DSI via a LT on i2cX.... reset and
> > irq pins comes from x and y. Describe this."
> >
> > > Signed-off-by: Prahlad Valluru <[email protected]>
> > > ---
> > > v2: Addressed dtschema errors
> > > - Fixed lt9611-irq
> > > - vdd-supply error to be ignored, as it is connected to
> > > input supply directly, on rb3gen2
>
> The choice is either fix the dts or fix the binding.

vdd-supply is mandatory for lt9611. Only in case of rb3gen2, we are seeing this
error, since it is connected to supply directly. Will add dummy vreg to address this.

>
> > > ---
> > > arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 86 ++++++++++++++++++++
> > > 1 file changed, 86 insertions(+)
> > >
> > > diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> > > index a085ff5b5fb2..c14d4a4bb3ce 100644
> > > --- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> > > +++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> > > @@ -51,6 +51,18 @@
> > > };
> > > };
> > > };
> > > +
> >
> > There's a stray tab here, please run checkpatch --strict on your
> > patches.
> >
> > > + hdmi-connector {
> > > + compatible = "hdmi-connector";
> > > + label = "HDMI";
> > > + type = "a";
> > > +
> > > + port {
> > > + hdmi_con: endpoint {
> > > + remote-endpoint = <&lt9611_out>;
> > > + };
> > > + };
> > > + };
> > >
> > > reserved-memory {
> > > xbl_mem: xbl@80700000 {
> > > @@ -530,6 +542,45 @@
> > [..]
> > > @@ -602,6 +653,21 @@
> > > status = "okay";
> > > };
> > >
> > > +&mdss_dsi {
> >
> > We want to keep nodes sorted (by address if applicable, otherwise
> > alphabetically on node names and on labels). "mdss_dsi" < "mdss_edp".
> >
> > So please move this up where it belongs.
> >
> > > + vdda-supply = <&vreg_l6b_1p2>;
> > > + status = "okay";
> > > +};
> > > +
> > > +&mdss_dsi0_out {
> > > + remote-endpoint = <&lt9611_a>;
> > > + data-lanes = <0 1 2 3>;
> > > +};
> > > +
> > > +&mdss_dsi_phy {
> > > + vdds-supply = <&vreg_l10c_0p88>;
> > > + status = "okay";
> > > +};
> > > +
> > > &qupv3_id_0 {
> > > status = "okay";
> > > };
> > > @@ -711,3 +777,23 @@
> > > function = "gpio";
> > > bias-disable;
> > > };
> > > +
> > > +&pm7250b_gpios {
> > > + lt9611_rst_pin: lt9611-rst-state {
> > > + pins = "gpio2";
> > > + function = "normal";
> > > +
> > > + output-high;
> > > + input-disable;
> > > + power-source = <0>;
> > > + };
> > > +};
> > > +
> > > +&tlmm {
> > > + lt9611_irq_pin: lt9611-irq-state {
> > > + pins = "gpio24";
> > > + function = "gpio";
> > > + drive-strength = <8>;
> >
> > I'd expect a 2 here, so please document why this is 8.
> >
> > Regards,
> > Bjorn
> >
> > > + bias-disable;
> > > + };
> > > +};
> > > --
> > > 2.17.1
> > >
> >
> >
>
>
> My bot found new DTB warnings on the .dts files added or changed in this
> series.
>
> Some warnings may be from an existing SoC .dtsi. Or perhaps the warnings
> are fixed by another series. Ultimately, it is up to the platform
> maintainer whether these warnings are acceptable or not. No need to reply
> unless the platform maintainer has comments.
>
> If you already ran DT checks and didn't see these error(s), then
> make sure dt-schema is up to date:
>
> pip3 install dtschema --upgrade
>
>
> New warnings running 'make CHECK_DTBS=y qcom/qcs6490-rb3gen2.dtb' for jr3ble6sxr5mr6cvm6ldvpyk5j4rucj3xy6vbha6ttoecte3d7@llu6qf6oasuc:
>
> arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dtb: hdmi-bridge@2b: 'vdd-supply' is a required property
> from schema $id: http://devicetree.org/schemas/display/bridge/lontium,lt9611.yaml#
>
>
>
>
>

2024-05-15 15:29:18

by Dmitry Baryshkov

Subject: Re: [PATCH v2] arm64: dts: qcom: qcs6490-rb3gen2: enable hdmi bridge

On Wed, 15 May 2024 at 17:05, Prahlad Valluru <[email protected]> wrote:
>
> On Wed, May 08, 2024 at 09:31:24AM -0500, Rob Herring (Arm) wrote:
> >
> > On Mon, 06 May 2024 18:14:10 -0500, Bjorn Andersson wrote:
> > > On Fri, Apr 26, 2024 at 07:54:42PM GMT, Prahlad Valluru wrote:
> > > > From: Venkata Prahlad Valluru <[email protected]>
> > > >
> > >
> > > Please don't thread new versions off existing version. b4 helps you with
> > > getting these things right, please check go/upstream for more details.
> > >
> > > > Enable lt9611uxc bridge for qcs6490 rb3 gen2 platform.
> > > >
> > >
> > > Even if it's clear what this is, I would prefer if you described the
> > > hardware a little bit in your commit message.
> > > "Rb3Gen2 has a HDMI connector, connected to DSI via a LT on i2cX.... reset and
> > > irq pins comes from x and y. Describe this."
> > >
> > > > Signed-off-by: Prahlad Valluru <[email protected]>
> > > > ---
> > > > v2: Addressed dtschema errors
> > > > - Fixed lt9611-irq
> > > > - vdd-supply error to be ignored, as it is connected to
> > > > input supply directly, on rb3gen2
> >
> > The choice is either fix the dts or fix the binding.
>
> vdd-supply is mandatory for lt9611. Only in case of rb3gen2, we are seeing this
> error, since it is connected to supply directly. Will add dummy vreg to address this.

s/add dummy vreg/describe fixed hardware register/


--
With best wishes
Dmitry

2024-05-28 14:13:16

by Prahlad Valluru

Subject: Re: [PATCH v2] arm64: dts: qcom: qcs6490-rb3gen2: enable hdmi bridge

On Wed, May 15, 2024 at 05:28:24PM +0200, Dmitry Baryshkov wrote:
> On Wed, 15 May 2024 at 17:05, Prahlad Valluru <[email protected]> wrote:
> >
> > On Wed, May 08, 2024 at 09:31:24AM -0500, Rob Herring (Arm) wrote:
> > >
> > > On Mon, 06 May 2024 18:14:10 -0500, Bjorn Andersson wrote:
> > > > On Fri, Apr 26, 2024 at 07:54:42PM GMT, Prahlad Valluru wrote:
> > > > > From: Venkata Prahlad Valluru <[email protected]>
> > > > >
> > > >
> > > > Please don't thread new versions off existing version. b4 helps you with
> > > > getting these things right, please check go/upstream for more details.
> > > >
> > > > > Enable lt9611uxc bridge for qcs6490 rb3 gen2 platform.
> > > > >
> > > >
> > > > Even if it's clear what this is, I would prefer if you described the
> > > > hardware a little bit in your commit message.
> > > > "Rb3Gen2 has a HDMI connector, connected to DSI via a LT on i2cX.... reset and
> > > > irq pins comes from x and y. Describe this."
> > > >
> > > > > Signed-off-by: Prahlad Valluru <[email protected]>
> > > > > ---
> > > > > v2: Addressed dtschema errors
> > > > > - Fixed lt9611-irq
> > > > > - vdd-supply error to be ignored, as it is connected to
> > > > > input supply directly, on rb3gen2
> > >
> > > The choice is either fix the dts or fix the binding.
> >
> > vdd-supply is mandatory for lt9611. Only in case of rb3gen2, we are seeing this
> > error, since it is connected to supply directly. Will add dummy vreg to address this.
>
> s/add dummy vreg/describe fixed hardware register/
True, will define a fixed regulator for vdd.
>
>
> --
> With best wishes
> Dmitry

2024-05-28 14:20:53

by Prahlad Valluru

Subject: [PATCH v4] arm64: dts: qcom: qcs6490-rb3gen2: enable hdmi bridge

Rb3Gen2 has a lt9611uxc DSI-to-HDMI bridge on i2c0, with
reset gpio from pm7250b gpio2 and irq gpio from tlmm gpio24.
Bridge supplies are Vdd connected to input supply directly
and vcc to L11c. Enable HDMI output, bridge and corresponding
DSI output.

Signed-off-by: Venkata Prahlad Valluru <[email protected]>
---
v4: added fixed regulator for vdd

v3: - Updated commit text
- Arranged nodes in alphabetical order
- Fixed signoff
- Fixed drive strength for lt9611_irq_pin
- Removed 'label' from hdmi-connector, which is optional

v2: Addressed dtschema errors
- Fixed lt9611-irq
- vdd-supply error to be ignored, as it is connected to
input supply directly, on rb3gen2
---
arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 94 ++++++++++++++++++++
1 file changed, 94 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
index a085ff5b5fb2..7f00fca131a2 100644
--- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
+++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
@@ -52,6 +52,25 @@
};
};

+ hdmi-connector {
+ compatible = "hdmi-connector";
+ type = "a";
+
+ port {
+ hdmi_con: endpoint {
+ remote-endpoint = <&lt9611_out>;
+ };
+ };
+ };
+
+ lt9611_1v2: lt9611-vdd12-regulator {
+ compatible = "regulator-fixed";
+ regulator-name = "LT9611_1V2";
+
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ };
+
reserved-memory {
xbl_mem: xbl@80700000 {
reg = <0x0 0x80700000 0x0 0x100000>;
@@ -530,6 +549,46 @@
<GCC_WPSS_RSCP_CLK>;
};

+&i2c0 {
+ clock-frequency = <400000>;
+ status = "okay";
+
+ lt9611_codec: hdmi-bridge@2b {
+ compatible = "lontium,lt9611uxc";
+ reg = <0x2b>;
+
+ interrupts-extended = <&tlmm 24 IRQ_TYPE_EDGE_FALLING>;
+ reset-gpios = <&pm7250b_gpios 2 GPIO_ACTIVE_HIGH>;
+
+ vdd-supply = <&lt9611_1v2>;
+ vcc-supply = <&vreg_l11c_2p8>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&lt9611_irq_pin &lt9611_rst_pin>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ lt9611_a: endpoint {
+ remote-endpoint = <&mdss_dsi0_out>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+
+ lt9611_out: endpoint {
+ remote-endpoint = <&hdmi_con>;
+ };
+ };
+ };
+ };
+};
+
&i2c1 {
status = "okay";

@@ -587,6 +646,21 @@
remote-endpoint = <&usb_dp_qmpphy_dp_in>;
};

+&mdss_dsi {
+ vdda-supply = <&vreg_l6b_1p2>;
+ status = "okay";
+};
+
+&mdss_dsi0_out {
+ remote-endpoint = <&lt9611_a>;
+ data-lanes = <0 1 2 3>;
+};
+
+&mdss_dsi_phy {
+ vdds-supply = <&vreg_l10c_0p88>;
+ status = "okay";
+};
+
&mdss_edp {
status = "okay";
};
@@ -711,3 +785,23 @@
function = "gpio";
bias-disable;
};
+
+&pm7250b_gpios {
+ lt9611_rst_pin: lt9611-rst-state {
+ pins = "gpio2";
+ function = "normal";
+
+ output-high;
+ input-disable;
+ power-source = <0>;
+ };
+};
+
+&tlmm {
+ lt9611_irq_pin: lt9611-irq-state {
+ pins = "gpio24";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-disable;
+ };
+};
--
2.17.1

2024-05-28 15:00:57

by Dmitry Baryshkov

Subject: Re: [PATCH v4] arm64: dts: qcom: qcs6490-rb3gen2: enable hdmi bridge

On Tue, May 28, 2024 at 07:49:54PM +0530, Venkata Prahlad Valluru wrote:
> Rb3Gen2 has a lt9611uxc DSI-to-HDMI bridge on i2c0, with
> reset gpio from pm7250b gpio2 and irq gpio from tlmm gpio24.
> Bridge supplies are Vdd connected to input supply directly
> and vcc to L11c. Enable HDMI output, bridge and corresponding
> DSI output.
>
> Signed-off-by: Venkata Prahlad Valluru <[email protected]>
> ---
> v4: added fixed regulator for vdd

Please don't send new iterations as replies to the previous iteration.
It might be ignored or mishandled by the tools.

>
> v3: - Updated commit text
> - Arranged nodes in alphabetical order
> - Fixed signoff
> - Fixed drive strength for lt9611_irq_pin
> - Removed 'label' from hdmi-connector, which is optional
>
> v2: Addressed dtschema errors
> - Fixed lt9611-irq
> - vdd-supply error to be ignored, as it is connected to
> input supply directly, on rb3gen2
> ---
> arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 94 ++++++++++++++++++++
> 1 file changed, 94 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> index a085ff5b5fb2..7f00fca131a2 100644
> --- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> +++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> @@ -52,6 +52,25 @@
> };
> };
>
> + hdmi-connector {
> + compatible = "hdmi-connector";
> + type = "a";
> +
> + port {
> + hdmi_con: endpoint {
> + remote-endpoint = <&lt9611_out>;
> + };
> + };
> + };
> +
> + lt9611_1v2: lt9611-vdd12-regulator {
> + compatible = "regulator-fixed";
> + regulator-name = "LT9611_1V2";

Is it the regulator / net name in schematics? Or is it also used by any
other consumers?

> +
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1200000>;
> + };
> +
> reserved-memory {
> xbl_mem: xbl@80700000 {
> reg = <0x0 0x80700000 0x0 0x100000>;
> @@ -530,6 +549,46 @@
> <GCC_WPSS_RSCP_CLK>;
> };
>
> +&i2c0 {
> + clock-frequency = <400000>;
> + status = "okay";
> +
> + lt9611_codec: hdmi-bridge@2b {
> + compatible = "lontium,lt9611uxc";
> + reg = <0x2b>;
> +
> + interrupts-extended = <&tlmm 24 IRQ_TYPE_EDGE_FALLING>;
> + reset-gpios = <&pm7250b_gpios 2 GPIO_ACTIVE_HIGH>;
> +
> + vdd-supply = <&lt9611_1v2>;
> + vcc-supply = <&vreg_l11c_2p8>;
> +
> + pinctrl-names = "default";
> + pinctrl-0 = <&lt9611_irq_pin &lt9611_rst_pin>;
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> +
> + lt9611_a: endpoint {
> + remote-endpoint = <&mdss_dsi0_out>;
> + };
> + };
> +
> + port@2 {
> + reg = <2>;
> +
> + lt9611_out: endpoint {
> + remote-endpoint = <&hdmi_con>;
> + };
> + };
> + };
> + };
> +};
> +
> &i2c1 {
> status = "okay";
>
> @@ -587,6 +646,21 @@
> remote-endpoint = <&usb_dp_qmpphy_dp_in>;
> };
>
> +&mdss_dsi {
> + vdda-supply = <&vreg_l6b_1p2>;
> + status = "okay";
> +};
> +
> +&mdss_dsi0_out {
> + remote-endpoint = <&lt9611_a>;
> + data-lanes = <0 1 2 3>;
> +};
> +
> +&mdss_dsi_phy {
> + vdds-supply = <&vreg_l10c_0p88>;
> + status = "okay";
> +};
> +
> &mdss_edp {
> status = "okay";
> };
> @@ -711,3 +785,23 @@
> function = "gpio";
> bias-disable;
> };
> +
> +&pm7250b_gpios {
> + lt9611_rst_pin: lt9611-rst-state {
> + pins = "gpio2";
> + function = "normal";
> +
> + output-high;
> + input-disable;
> + power-source = <0>;
> + };
> +};
> +
> +&tlmm {
> + lt9611_irq_pin: lt9611-irq-state {
> + pins = "gpio24";
> + function = "gpio";
> + drive-strength = <2>;
> + bias-disable;
> + };
> +};
> --
> 2.17.1
>

--
With best wishes
Dmitry

2024-05-28 16:25:09

by Prahlad Valluru

Subject: Re: [PATCH v4] arm64: dts: qcom: qcs6490-rb3gen2: enable hdmi bridge

On Tue, May 28, 2024 at 06:00:26PM +0300, Dmitry Baryshkov wrote:
> On Tue, May 28, 2024 at 07:49:54PM +0530, Venkata Prahlad Valluru wrote:
> > Rb3Gen2 has a lt9611uxc DSI-to-HDMI bridge on i2c0, with
> > reset gpio from pm7250b gpio2 and irq gpio from tlmm gpio24.
> > Bridge supplies are Vdd connected to input supply directly
> > and vcc to L11c. Enable HDMI output, bridge and corresponding
> > DSI output.
> >
> > Signed-off-by: Venkata Prahlad Valluru <[email protected]>
> > ---
> > v4: added fixed regulator for vdd
>
> Please don't send new iterations as replies to the previous iteration.
> It might be ignored or mishandled by the tools.
Was trying to have the context of discussion captured. Will add links
to the patchsets in the history, going forward.
>
> >
> > v3: - Updated commit text
> > - Arranged nodes in alphabetical order
> > - Fixed signoff
> > - Fixed drive strength for lt9611_irq_pin
> > - Removed 'label' from hdmi-connector, which is optional
> >
> > v2: Addressed dtschema errors
> > - Fixed lt9611-irq
> > - vdd-supply error to be ignored, as it is connected to
> > input supply directly, on rb3gen2
> > ---
> > arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 94 ++++++++++++++++++++
> > 1 file changed, 94 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> > index a085ff5b5fb2..7f00fca131a2 100644
> > --- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> > +++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> > @@ -52,6 +52,25 @@
> > };
> > };
> >
> > + hdmi-connector {
> > + compatible = "hdmi-connector";
> > + type = "a";
> > +
> > + port {
> > + hdmi_con: endpoint {
> > + remote-endpoint = <&lt9611_out>;
> > + };
> > + };
> > + };
> > +
> > + lt9611_1v2: lt9611-vdd12-regulator {
> > + compatible = "regulator-fixed";
> > + regulator-name = "LT9611_1V2";
>
> Is it the regulator / net name in schematics? Or is it also used by any
> other consumers?
>
VREG_HDMI_OUT_1P2 is the naming in schematic, but i see this naming convention for rb5 based boards.
No other consumers for this.
> > +
> > + regulator-min-microvolt = <1200000>;
> > + regulator-max-microvolt = <1200000>;
> > + };
> > +
> > reserved-memory {
> > xbl_mem: xbl@80700000 {
> > reg = <0x0 0x80700000 0x0 0x100000>;
> > @@ -530,6 +549,46 @@
> > <GCC_WPSS_RSCP_CLK>;
> > };
> >
> > +&i2c0 {
> > + clock-frequency = <400000>;
> > + status = "okay";
> > +
> > + lt9611_codec: hdmi-bridge@2b {
> > + compatible = "lontium,lt9611uxc";
> > + reg = <0x2b>;
> > +
> > + interrupts-extended = <&tlmm 24 IRQ_TYPE_EDGE_FALLING>;
> > + reset-gpios = <&pm7250b_gpios 2 GPIO_ACTIVE_HIGH>;
> > +
> > + vdd-supply = <&lt9611_1v2>;
> > + vcc-supply = <&vreg_l11c_2p8>;
> > +
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&lt9611_irq_pin &lt9611_rst_pin>;
> > +
> > + ports {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + port@0 {
> > + reg = <0>;
> > +
> > + lt9611_a: endpoint {
> > + remote-endpoint = <&mdss_dsi0_out>;
> > + };
> > + };
> > +
> > + port@2 {
> > + reg = <2>;
> > +
> > + lt9611_out: endpoint {
> > + remote-endpoint = <&hdmi_con>;
> > + };
> > + };
> > + };
> > + };
> > +};
> > +
> > &i2c1 {
> > status = "okay";
> >
> > @@ -587,6 +646,21 @@
> > remote-endpoint = <&usb_dp_qmpphy_dp_in>;
> > };
> >
> > +&mdss_dsi {
> > + vdda-supply = <&vreg_l6b_1p2>;
> > + status = "okay";
> > +};
> > +
> > +&mdss_dsi0_out {
> > + remote-endpoint = <&lt9611_a>;
> > + data-lanes = <0 1 2 3>;
> > +};
> > +
> > +&mdss_dsi_phy {
> > + vdds-supply = <&vreg_l10c_0p88>;
> > + status = "okay";
> > +};
> > +
> > &mdss_edp {
> > status = "okay";
> > };
> > @@ -711,3 +785,23 @@
> > function = "gpio";
> > bias-disable;
> > };
> > +
> > +&pm7250b_gpios {
> > + lt9611_rst_pin: lt9611-rst-state {
> > + pins = "gpio2";
> > + function = "normal";
> > +
> > + output-high;
> > + input-disable;
> > + power-source = <0>;
> > + };
> > +};
> > +
> > +&tlmm {
> > + lt9611_irq_pin: lt9611-irq-state {
> > + pins = "gpio24";
> > + function = "gpio";
> > + drive-strength = <2>;
> > + bias-disable;
> > + };
> > +};
> > --
> > 2.17.1
> >
>
> --
> With best wishes
> Dmitry

2024-05-28 16:33:50

by Dmitry Baryshkov

Subject: Re: [PATCH v4] arm64: dts: qcom: qcs6490-rb3gen2: enable hdmi bridge

On Tue, May 28, 2024 at 09:54:34PM +0530, Prahlad Valluru wrote:
> On Tue, May 28, 2024 at 06:00:26PM +0300, Dmitry Baryshkov wrote:
> > On Tue, May 28, 2024 at 07:49:54PM +0530, Venkata Prahlad Valluru wrote:
> > > Rb3Gen2 has a lt9611uxc DSI-to-HDMI bridge on i2c0, with
> > > reset gpio from pm7250b gpio2 and irq gpio from tlmm gpio24.
> > > Bridge supplies are Vdd connected to input supply directly
> > > and vcc to L11c. Enable HDMI output, bridge and corresponding
> > > DSI output.
> > >
> > > Signed-off-by: Venkata Prahlad Valluru <[email protected]>
> > > ---
> > > v4: added fixed regulator for vdd
> >
> > Please don't send new iterations as replies to the previous iteration.
> > It might be ignored or mishandled by the tools.
> Was trying to have the context of discussion captured. Will add links
> to the patchsets in the history, going forward.

I'd suggest using b4 tool, which handles such issues in an automated
way. It adds links to previous iterations, changelog, etc.

> >
> > >
> > > v3: - Updated commit text
> > > - Arranged nodes in alphabetical order
> > > - Fixed signoff
> > > - Fixed drive strength for lt9611_irq_pin
> > > - Removed 'label' from hdmi-connector, which is optional
> > >
> > > v2: Addressed dtschema errors
> > > - Fixed lt9611-irq
> > > - vdd-supply error to be ignored, as it is connected to
> > > input supply directly, on rb3gen2
> > > ---
> > > arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 94 ++++++++++++++++++++
> > > 1 file changed, 94 insertions(+)
> > >
> > > diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> > > index a085ff5b5fb2..7f00fca131a2 100644
> > > --- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> > > +++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> > > @@ -52,6 +52,25 @@
> > > };
> > > };
> > >
> > > + hdmi-connector {
> > > + compatible = "hdmi-connector";
> > > + type = "a";
> > > +
> > > + port {
> > > + hdmi_con: endpoint {
> > > + remote-endpoint = <&lt9611_out>;
> > > + };
> > > + };
> > > + };
> > > +
> > > + lt9611_1v2: lt9611-vdd12-regulator {
> > > + compatible = "regulator-fixed";
> > > + regulator-name = "LT9611_1V2";
> >
> > Is it the regulator / net name in schematics? Or is it also used by any
> > other consumers?
> >
> VREG_HDMI_OUT_1P2 is the naming in schematic, but i see this naming convention for rb5 based boards.
> No other consumers for this.

Reviewed-by: Dmitry Baryshkov <[email protected]>

> > > +
> > > + regulator-min-microvolt = <1200000>;
> > > + regulator-max-microvolt = <1200000>;
> > > + };
> > > +
> > > reserved-memory {
> > > xbl_mem: xbl@80700000 {
> > > reg = <0x0 0x80700000 0x0 0x100000>;
> > > @@ -530,6 +549,46 @@
> > > <GCC_WPSS_RSCP_CLK>;
> > > };
> > >
> > > +&i2c0 {
> > > + clock-frequency = <400000>;
> > > + status = "okay";
> > > +
> > > + lt9611_codec: hdmi-bridge@2b {
> > > + compatible = "lontium,lt9611uxc";
> > > + reg = <0x2b>;
> > > +
> > > + interrupts-extended = <&tlmm 24 IRQ_TYPE_EDGE_FALLING>;
> > > + reset-gpios = <&pm7250b_gpios 2 GPIO_ACTIVE_HIGH>;
> > > +
> > > + vdd-supply = <&lt9611_1v2>;
> > > + vcc-supply = <&vreg_l11c_2p8>;
> > > +
> > > + pinctrl-names = "default";
> > > + pinctrl-0 = <&lt9611_irq_pin &lt9611_rst_pin>;
> > > +
> > > + ports {
> > > + #address-cells = <1>;
> > > + #size-cells = <0>;
> > > +
> > > + port@0 {
> > > + reg = <0>;
> > > +
> > > + lt9611_a: endpoint {
> > > + remote-endpoint = <&mdss_dsi0_out>;
> > > + };
> > > + };
> > > +
> > > + port@2 {
> > > + reg = <2>;
> > > +
> > > + lt9611_out: endpoint {
> > > + remote-endpoint = <&hdmi_con>;
> > > + };
> > > + };
> > > + };
> > > + };
> > > +};
> > > +
> > > &i2c1 {
> > > status = "okay";
> > >
> > > @@ -587,6 +646,21 @@
> > > remote-endpoint = <&usb_dp_qmpphy_dp_in>;
> > > };
> > >
> > > +&mdss_dsi {
> > > + vdda-supply = <&vreg_l6b_1p2>;
> > > + status = "okay";
> > > +};
> > > +
> > > +&mdss_dsi0_out {
> > > + remote-endpoint = <&lt9611_a>;
> > > + data-lanes = <0 1 2 3>;
> > > +};
> > > +
> > > +&mdss_dsi_phy {
> > > + vdds-supply = <&vreg_l10c_0p88>;
> > > + status = "okay";
> > > +};
> > > +
> > > &mdss_edp {
> > > status = "okay";
> > > };
> > > @@ -711,3 +785,23 @@
> > > function = "gpio";
> > > bias-disable;
> > > };
> > > +
> > > +&pm7250b_gpios {
> > > + lt9611_rst_pin: lt9611-rst-state {
> > > + pins = "gpio2";
> > > + function = "normal";
> > > +
> > > + output-high;
> > > + input-disable;
> > > + power-source = <0>;
> > > + };
> > > +};
> > > +
> > > +&tlmm {
> > > + lt9611_irq_pin: lt9611-irq-state {
> > > + pins = "gpio24";
> > > + function = "gpio";
> > > + drive-strength = <2>;
> > > + bias-disable;
> > > + };
> > > +};
> > > --
> > > 2.17.1
> > >
> >
> > --
> > With best wishes
> > Dmitry

--
With best wishes
Dmitry