[PATCH v2 4/4] arm64: dts: rockchip: Enable HDMI1 on rock-5b

[Sebastian Reichel]

Hi,

On Mon, Mar 31, 2025 at 08:01:34PM +0100, Mark Brown wrote:
> On Wed, Dec 11, 2024 at 01:06:17AM +0200, Cristian Ciocaltea wrote:
> > Add the necessary DT changes to enable the second HDMI output port on
> > Radxa ROCK 5B.
> > 
> > While at it, switch the position of &vop_mmu and @vop to maintain the
> > alphabetical order.
> 
> We're seeing failures in the Arm lab the IGT tests on this board in
> Linus' tree which bisect to 77cea7ca1368 which is this patch.
> core_getversion fails:
>
>[...]
>
> The board is running fine in -next so hopefully there's a fix already
> there which will make it's way to Linus' tree during the merge window.
> We're also seeing something broken with the HDMI audio devices, but I
> didn't look into that.

I guess the root cause for the problem is, that the pull request for
the PHY subsystem [0] has not yet been merged. It contains [1]
("phy: phy-rockchip-samsung-hdptx: Don't use dt aliases to determine phy-id"),
a fix for properly handling the second RK3588 HDMI PHY instance.

[0] https://lore.kernel.org/all/Z+pFou7KOQZJ1iy4@vaman/
[1] https://web.git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy.git/commit/?h=next&id=f08d1c08563846f9be79a4859e912c8795d690fd

Greetings,

-- Sebastian