[PATCH 1/6] dt-bindings: display: Add panel-mipi-dsi-bpf generic panel binding

[Neil Armstrong]

On 9/29/26 10:39, Maxime Ripard wrote:
> Hi,
> 
>
<snip>

> 
> panel-mipi-dsi-spi is a generic panel that will load a firmware, and
> quite similar to this one. google,android-pipe and qcom,fastrpc don't
> attach to anything and will just open a tunnel to userspace, which is
> somewhat equivalent but more dramatic than what this driver is doing.
> simple-card or its variations will just instantiate a kernel driver from
> the DT and is used pretty much everywhere.
> 
> I reused the binding from panel-mipi-dsi-spi for this. It was reviewed
> by rob, and acked by a panel maintainer, and 4 years ago, so we're way
> past the "oh but we didn't know what we were doing back then" argument.
> 
> So, let's phrase this differently: what's different about the
> description than panel-mipi-dsi-spi, or any other binding already in
> tree?

The panel-mipi-dsi-spi still describes a class of H/W control interface,
not a pure software driver implementation type.

"panel-mipi-dsi-bpf" or "panel-mipi-dsi-rust" or "panel-mipi-dsi-cplusplus"
would be the same problem.

> 
> If it's the BPF part, BPF is not Linux-only, and there's hardware with
> direct BPF support these days, so it can be considered OS-agnostic and
> not an implementation detail.

If somehow panels used a standardized MIPI firmware we could define this
in DT, but here we're basically inventing our own type of firmware from
thin air.

Neil

> 
> Maxime