| Message ID | 20211204143725.31646-21-digetx@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Support HDMI audio on NVIDIA Tegra20 | expand |
On Sat, Dec 04, 2021 at 05:37:23PM +0300, Dmitry Osipenko wrote: > Add HDMI audio graph to Tegra20 device-tree to enable HDMI audio on > Tegra20 devices. > > Signed-off-by: Dmitry Osipenko <digetx@gmail.com> > --- > arch/arm/boot/dts/tegra20.dtsi | 22 +++++++++++++++++++++- > 1 file changed, 21 insertions(+), 1 deletion(-) > > diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi > index 72cbe32d0c1d..dde228bcbbff 100644 > --- a/arch/arm/boot/dts/tegra20.dtsi > +++ b/arch/arm/boot/dts/tegra20.dtsi > @@ -186,7 +186,7 @@ rgb { > }; > }; > > - hdmi@54280000 { > + tegra_hdmi: hdmi@54280000 { > compatible = "nvidia,tegra20-hdmi"; > reg = <0x54280000 0x00040000>; > interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>; > @@ -1063,4 +1063,24 @@ pmu { > interrupt-affinity = <&{/cpus/cpu@0}>, > <&{/cpus/cpu@1}>; > }; > + > + sound-hdmi { > + compatible = "simple-audio-card"; > + simple-audio-card,name = "NVIDIA Tegra20 HDMI"; > + > + #address-cells = <1>; > + #size-cells = <0>; > + > + simple-audio-card,dai-link@0 { > + reg = <0>; > + > + cpu { > + sound-dai = <&tegra_spdif>; > + }; > + > + codec { > + sound-dai = <&tegra_hdmi>; > + }; > + }; > + }; Should this be status = "disabled" and then only enabled for platforms that actually enable HDMI? Thierry
16.12.2021 16:46, Thierry Reding пишет: > On Sat, Dec 04, 2021 at 05:37:23PM +0300, Dmitry Osipenko wrote: >> Add HDMI audio graph to Tegra20 device-tree to enable HDMI audio on >> Tegra20 devices. >> >> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> >> --- >> arch/arm/boot/dts/tegra20.dtsi | 22 +++++++++++++++++++++- >> 1 file changed, 21 insertions(+), 1 deletion(-) >> >> diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi >> index 72cbe32d0c1d..dde228bcbbff 100644 >> --- a/arch/arm/boot/dts/tegra20.dtsi >> +++ b/arch/arm/boot/dts/tegra20.dtsi >> @@ -186,7 +186,7 @@ rgb { >> }; >> }; >> >> - hdmi@54280000 { >> + tegra_hdmi: hdmi@54280000 { >> compatible = "nvidia,tegra20-hdmi"; >> reg = <0x54280000 0x00040000>; >> interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>; >> @@ -1063,4 +1063,24 @@ pmu { >> interrupt-affinity = <&{/cpus/cpu@0}>, >> <&{/cpus/cpu@1}>; >> }; >> + >> + sound-hdmi { >> + compatible = "simple-audio-card"; >> + simple-audio-card,name = "NVIDIA Tegra20 HDMI"; >> + >> + #address-cells = <1>; >> + #size-cells = <0>; >> + >> + simple-audio-card,dai-link@0 { >> + reg = <0>; >> + >> + cpu { >> + sound-dai = <&tegra_spdif>; >> + }; >> + >> + codec { >> + sound-dai = <&tegra_hdmi>; >> + }; >> + }; >> + }; > > Should this be status = "disabled" and then only enabled for platforms > that actually enable HDMI? Assuming that HDMI node is disabled, we assume that the card won't be initialized. It won't be a problem to restructure this card in DT later on if we will have any other use-cases than we currently have, but this is unlikely to happen in practice.
diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi index 72cbe32d0c1d..dde228bcbbff 100644 --- a/arch/arm/boot/dts/tegra20.dtsi +++ b/arch/arm/boot/dts/tegra20.dtsi @@ -186,7 +186,7 @@ rgb { }; }; - hdmi@54280000 { + tegra_hdmi: hdmi@54280000 { compatible = "nvidia,tegra20-hdmi"; reg = <0x54280000 0x00040000>; interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>; @@ -1063,4 +1063,24 @@ pmu { interrupt-affinity = <&{/cpus/cpu@0}>, <&{/cpus/cpu@1}>; }; + + sound-hdmi { + compatible = "simple-audio-card"; + simple-audio-card,name = "NVIDIA Tegra20 HDMI"; + + #address-cells = <1>; + #size-cells = <0>; + + simple-audio-card,dai-link@0 { + reg = <0>; + + cpu { + sound-dai = <&tegra_spdif>; + }; + + codec { + sound-dai = <&tegra_hdmi>; + }; + }; + }; };
Add HDMI audio graph to Tegra20 device-tree to enable HDMI audio on Tegra20 devices. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> --- arch/arm/boot/dts/tegra20.dtsi | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-)