linux-kernel - Re: [PATCH v2 2/2] ARM: tegra: transformers: add connector node

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <ZMKgW6eYpJVqeZJM@orome>
Date:   Thu, 27 Jul 2023 18:50:35 +0200
From:   Thierry Reding <thierry.reding@...il.com>
To:     Svyatoslav Ryhel <clamor95@...il.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Mikko Perttunen <mperttunen@...dia.com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Maxim Schwalm <maxim.schwalm@...il.com>,
        Dmitry Osipenko <digetx@...il.com>, devicetree@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH v2 2/2] ARM: tegra: transformers: add connector node

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@...il.com> 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@...oo.com> # ASUS TF T30
> >> Tested-by: Robert Eckelmann <longnoserob@...il.com> # ASUS TF101 T20
> >> Tested-by: Svyatoslav Ryhel <clamor95@...il.com> # ASUS TF201 T30
> >> Signed-off-by: Svyatoslav Ryhel <clamor95@...il.com>
> >> ---
> >>  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@...80000 {
> >>  			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

Download attachment "signature.asc" of type "application/pgp-signature" (834 bytes)