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Date: Fri, 11 Nov 2022 16:20:40 +0100
From: Robert Foss <robert.foss@...aro.org>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc: agross@...nel.org, bjorn.andersson@...aro.org,
konrad.dybcio@...ainline.org, robh+dt@...nel.org,
krzysztof.kozlowski+dt@...aro.org, robdclark@...il.com,
quic_abhinavk@...cinc.com, dmitry.baryshkov@...aro.org,
sean@...rly.run, airlied@...ux.ie, daniel@...ll.ch,
quic_kalyant@...cinc.com, swboyd@...omium.org,
angelogioacchino.delregno@...ainline.org, loic.poulain@...aro.org,
quic_vpolimer@...cinc.com, vkoul@...nel.org, dianders@...omium.org,
linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
freedreno@...ts.freedesktop.org,
Jonathan Marek <jonathan@...ek.ca>, vinod.koul@...aro.org,
quic_jesszhan@...cinc.com
Subject: Re: [PATCH v1 9/9] arm64: dts: qcom: sm8350-hdk: Enable lt9611uxc
dsi-hdmi bridge
On Sat, 29 Oct 2022 at 00:06, Krzysztof Kozlowski
<krzysztof.kozlowski@...aro.org> wrote:
>
> On 28/10/2022 08:08, Robert Foss wrote:
> > The sm8350-hdk ships with the LT9611 UXC DSI/HDMI bridge chip.
> >
> > In order to toggle the board to enable the HDMI output,
> > switch #7 & #8 on the rightmost multi-switch package have
> > to be toggled to On.
> >
> > Signed-off-by: Robert Foss <robert.foss@...aro.org>
> > ---
> > arch/arm64/boot/dts/qcom/sm8350-hdk.dts | 106 ++++++++++++++++++++++++
> > 1 file changed, 106 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/sm8350-hdk.dts b/arch/arm64/boot/dts/qcom/sm8350-hdk.dts
> > index 6e07feb4b3b2..6666b38b58f8 100644
> > --- a/arch/arm64/boot/dts/qcom/sm8350-hdk.dts
> > +++ b/arch/arm64/boot/dts/qcom/sm8350-hdk.dts
> > @@ -20,6 +20,17 @@ chosen {
> > stdout-path = "serial0:115200n8";
> > };
> >
> > + hdmi-out {
>
> Generic node names, so hdmi-connector or just connector.
Ack.
>
> > + compatible = "hdmi-connector";
> > + type = "a";
> > +
> > + port {
> > + hdmi_con: endpoint {
> > + remote-endpoint = <<9611_out>;
> > + };
> > + };
> > + };
> > +
> > vph_pwr: vph-pwr-regulator {
> > compatible = "regulator-fixed";
> > regulator-name = "vph_pwr";
> > @@ -29,6 +40,32 @@ vph_pwr: vph-pwr-regulator {
> > regulator-always-on;
> > regulator-boot-on;
> > };
> > +
> > + lt9611_1v2: lt9611-1v2 {
>
> Node names should be generic.
> https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation
Ack.
>
> > + compatible = "regulator-fixed";
> > + regulator-name = "LT9611_1V2";
> > +
> > + vin-supply = <&vph_pwr>;
> > + regulator-min-microvolt = <1200000>;
> > + regulator-max-microvolt = <1200000>;
> > + gpio = <&tlmm 49 GPIO_ACTIVE_HIGH>;
> > + enable-active-high;
> > + regulator-boot-on;
> > + regulator-always-on;
> > + };
> > +
> > + lt9611_3v3: lt9611-3v3 {
>
> Ditto
Ack.
>
>
> > + compatible = "regulator-fixed";
> > + regulator-name = "LT9611_3V3";
> > +
> > + vin-supply = <&vreg_bob>;
> > + gpio = <&tlmm 47 GPIO_ACTIVE_HIGH>;
> > + regulator-min-microvolt = <3300000>;
> > + regulator-max-microvolt = <3300000>;
> > + enable-active-high;
> > + regulator-boot-on;
> > + regulator-always-on;
> > + };
> > };
> >
> > &adsp {
> > @@ -220,6 +257,15 @@ &dispcc {
> > &dsi0 {
> > status = "okay";
> > vdda-supply = <&vreg_l6b_1p2>;
> > +
> > + ports {
> > + port@1 {
> > + endpoint {
> > + remote-endpoint = <<9611_a>;
> > + data-lanes = <0 1 2 3>;
> > + };
> > + };
> > + };
> > };
> >
> > &dsi0_phy {
> > @@ -231,6 +277,48 @@ &gpi_dma1 {
> > status = "okay";
> > };
> >
> > +&i2c15 {
> > + status = "okay";
>
> status is the last property
Ack.
>
> > + clock-frequency = <400000>;
> > +
> > + lt9611_codec: hdmi-bridge@2b {
> > + compatible = "lontium,lt9611uxc";
> > + reg = <0x2b>;
> > + status = "okay";
>
> Why status?
It should be removed. Fixing in v2.
>
> > +
> > + interrupts-extended = <&tlmm 50 IRQ_TYPE_EDGE_FALLING>;
> > + reset-gpios = <&tlmm 48 GPIO_ACTIVE_HIGH>;
> > +
> > + vdd-supply = <<9611_1v2>;
> > + vcc-supply = <<9611_3v3>;
> > +
> > + pinctrl-names = "default";
> > + pinctrl-0 = <<9611_irq_pin <9611_rst_pin>;
> > +
> > + ports {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + port@0 {
> > + reg = <0>;
> > +
> > + lt9611_a: endpoint {
> > + remote-endpoint = <&dsi0_out>;
> > + };
> > + };
> > +
> > + port@2 {
> > + reg = <2>;
> > +
> > + lt9611_out: endpoint {
> > + remote-endpoint = <&hdmi_con>;
> > + };
> > + };
> > +
>
> No need for blank line
Ack
>
> > + };
> > + };
> > +};
> > +
> > &mdss {
> > status = "okay";
> > };
> > @@ -248,6 +336,10 @@ &qupv3_id_0 {
> > status = "okay";
> > };
> >
> > +&qupv3_id_2 {
> > + status = "okay";
> > +};
> > +
> > &slpi {
> > status = "okay";
> > firmware-name = "qcom/sm8350/slpi.mbn";
> > @@ -544,4 +636,18 @@ usb_hub_enabled_state: usb-hub-enabled-state {
> > drive-strength = <2>;
> > output-low;
> > };
> > +
> > + lt9611_rst_pin: lt9611-rst-state {
> > + pins = "gpio48";
> > + function = "normal";
> > +
> > + output-high;
> > + input-disable;
> > + };
> > +
> > + lt9611_irq_pin: lt9611-irq {
>
> Missing suffix 'state'.
Ack.
>
> Does not look like you tested the DTS against bindings. Please run `make
> dtbs_check` (see Documentation/devicetree/bindings/writing-schema.rst
> for instructions).
v1 was missing the bindings, v2 will include bindings for there parts.
>
> Rebase your changes on last linux-next.
Ack.
>
> Best regards,
> Krzysztof
>
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