Re: [PATCH v2 1/5] dt-bindings: display: simple-framebuffer: Add interconnects property

From: Thomas Zimmermann
Date: Mon Jun 30 2025 - 02:26:46 EST


Hi

Am 28.06.25 um 13:49 schrieb Krzysztof Kozlowski:
On 27/06/2025 11:48, Luca Weiss wrote:
Hi Krzysztof,

On Fri Jun 27, 2025 at 10:08 AM CEST, Krzysztof Kozlowski wrote:
On Mon, Jun 23, 2025 at 08:44:45AM +0200, Luca Weiss wrote:
Document the interconnects property which is a list of interconnect
paths that is used by the framebuffer and therefore needs to be kept
alive when the framebuffer is being used.

Acked-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
Signed-off-by: Luca Weiss <luca.weiss@xxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/display/simple-framebuffer.yaml | 3 +++
1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/simple-framebuffer.yaml b/Documentation/devicetree/bindings/display/simple-framebuffer.yaml
index 296500f9da05e296dbbeec50ba5186b6b30aaffc..f0fa0ef23d91043dfb2b220c654b80e2e80850cd 100644
--- a/Documentation/devicetree/bindings/display/simple-framebuffer.yaml
+++ b/Documentation/devicetree/bindings/display/simple-framebuffer.yaml
@@ -79,6 +79,9 @@ properties:
power-domains:
description: List of power domains used by the framebuffer.
+ interconnects:
+ description: List of interconnect paths used by the framebuffer.
+
maxItems: 1, or this is not a simple FB anymore. Anything which needs
some sort of resources in unknown way is not simple anymore. You need
device specific bindings.
The bindings support an arbitrary number of clocks, regulators,
power-domains. Why should I artificially limit the interconnects to only
one?
And IMO they should not. Bindings are not supposed to be generic.

The driver code also has that support added in this series.
That's not the problem here.

Then could you please state the problem in clear terms? We're obviously not all on the same page here.

Best regards
Thomas



Best regards,
Krzysztof


--
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Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)