Re: [PATCH v3 6/6] arm64: dts: imx8mp: Add hdmi parallel audio interface node

Shengjiu Wang
2025-08-06T03:50:17Z

On Tue, Aug 5, 2025 at 3:10 PM Alexander Stein
<alexander.stein@ew.tq-group.com> wrote:
>
> Am Montag, 4. August 2025, 12:47:22 CEST schrieb Shengjiu Wang:
> > The HDMI TX Parallel Audio Interface (HTX_PAI) is a bridge between the
> > Audio Subsystem to the HDMI TX Controller.
> >
> > Shrink register map size of hdmi_pvi to avoid overlapped hdmi_pai device.
> >
> > Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
> > ---
> > arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 4 +++
> > arch/arm64/boot/dts/freescale/imx8mp.dtsi | 28 +++++++++++++++++++-
>
> Please separate commits for SoC and board files. Thanks

Ok.

Best regards
Shengjiu Wang
>
> Best regards,
> Alexander
>
> > 2 files changed, 31 insertions(+), 1 deletion(-)
> >
> > diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> > index c0cc5611048e..cc9351a5bd65 100644
> > --- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> > +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> > @@ -442,6 +442,10 @@ &flexcan2 {
> > status = "disabled";/* can2 pin conflict with pdm */
> > };
> >
> > +&hdmi_pai {
> > + status = "okay";
> > +};
> > +
> > &hdmi_pvi {
> > status = "okay";
> > };
> > diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> > index 841d155685ee..00d8474bd1b1 100644
> > --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> > +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> > @@ -2066,7 +2066,7 @@ irqsteer_hdmi: interrupt-controller@32fc2000 {
> >
> > hdmi_pvi: display-bridge@32fc4000 {
> > compatible = "fsl,imx8mp-hdmi-pvi";
> > - reg = <0x32fc4000 0x1000>;
> > + reg = <0x32fc4000 0x800>;
> > interrupt-parent = <&irqsteer_hdmi>;
> > interrupts = <12>;
> > power-domains = <&hdmi_blk_ctrl IMX8MP_HDMIBLK_PD_PVI>;
> > @@ -2092,6 +2092,24 @@ pvi_to_hdmi_tx: endpoint {
> > };
> > };
> >
> > + hdmi_pai: audio-bridge@32fc4800 {
> > + compatible = "fsl,imx8mp-hdmi-pai";
> > + reg = <0x32fc4800 0x800>;
> > + interrupt-parent = <&irqsteer_hdmi>;
> > + interrupts = <14>;
> > + clocks = <&clk IMX8MP_CLK_HDMI_APB>;
> > + clock-names = "apb";
> > + power-domains = <&hdmi_blk_ctrl IMX8MP_HDMIBLK_PD_PAI>;
> > + status = "disabled";
> > +
> > + port {
> > +
> > + pai_to_hdmi_tx: endpoint {
> > + remote-endpoint = <&hdmi_tx_from_pai>;
> > + };
> > + };
> > + };
> > +
> > lcdif3: display-controller@32fc6000 {
> > compatible = "fsl,imx8mp-lcdif";
> > reg = <0x32fc6000 0x1000>;
> > @@ -2143,6 +2161,14 @@ port@1 {
> > reg = <1>;
> > /* Point endpoint to the HDMI connector */
> > };
> > +
> > + port@2 {
> > + reg = <2>;
> > +
> > + hdmi_tx_from_pai: endpoint {
> > + remote-endpoint = <&pai_to_hdmi_tx>;
> > + };
> > + };
> > };
> > };
> >
> >
>
>
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