On Thu, Jul 27, 2023 at 07:26:28PM +0300, Svyatoslav Ryhel wrote:
>
>
> 27 липня 2023 р. 18:11:15 GMT+03:00, Thierry Reding <thierry.reding@xxxxxxxxx> написав(-ла):
> >On Sun, Jun 18, 2023 at 11:50:46AM +0300, Svyatoslav Ryhel wrote:
> >> All ASUS Transformers have micro-HDMI connector directly available.
> >> After Tegra HDMI got bridge/connector support, we should use connector
> >> framework for proper HW description.
> >>
> >> Tested-by: Andreas Westman Dorcsak <hedmoo@xxxxxxxxx> # ASUS TF T30
> >> Tested-by: Robert Eckelmann <longnoserob@xxxxxxxxx> # ASUS TF101 T20
> >> Tested-by: Svyatoslav Ryhel <clamor95@xxxxxxxxx> # ASUS TF201 T30
> >> Signed-off-by: Svyatoslav Ryhel <clamor95@xxxxxxxxx>
> >> ---
> >> arch/arm/boot/dts/tegra20-asus-tf101.dts | 22 ++++++++++++++++---
> >> .../dts/tegra30-asus-transformer-common.dtsi | 21 ++++++++++++++++--
> >> 2 files changed, 38 insertions(+), 5 deletions(-)
> >>
> >> diff --git a/arch/arm/boot/dts/tegra20-asus-tf101.dts b/arch/arm/boot/dts/tegra20-asus-tf101.dts
> >> index c2a9c3fb5b33..97350f566539 100644
> >> --- a/arch/arm/boot/dts/tegra20-asus-tf101.dts
> >> +++ b/arch/arm/boot/dts/tegra20-asus-tf101.dts
> >> @@ -82,9 +82,11 @@ hdmi@54280000 {
> >> pll-supply = <&hdmi_pll_reg>;
> >> hdmi-supply = <&vdd_hdmi_en>;
> >>
> >> - nvidia,ddc-i2c-bus = <&hdmi_ddc>;
> >> - nvidia,hpd-gpio = <&gpio TEGRA_GPIO(N, 7)
> >> - GPIO_ACTIVE_HIGH>;
> >> + port@0 {
> >> + hdmi_out: endpoint {
> >> + remote-endpoint = <&connector_in>;
> >> + };
> >> + };
> >
> >Does this need a bindings change? nvidia,tegra20-hdmi currently doesn't
> >support OF graphs, so this would probably fail to validate if we merge
> >it without a corresponding DT bindings update.
>
> drm/tegra patch is backwards compatible and connector node is optional.
We still need to document the connector node, otherwise the DT
validation will complain about port@0 being used here, won't it?
Thierry
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