* [PATCH] dt-bindings: gpu: arm,mali-utgard: add additional properties
@ 2020-05-19 16:44 Johan Jonker
2020-05-19 19:06 ` Heiko Stübner
0 siblings, 1 reply; 2+ messages in thread
From: Johan Jonker @ 2020-05-19 16:44 UTC (permalink / raw)
To: heiko
Cc: robh+dt, maxime.ripard, airlied, daniel, dri-devel, devicetree,
linux-arm-kernel, linux-rockchip, linux-kernel
In the old txt situation we add/describe only properties that are used
by the driver/hardware itself. With yaml it also filters things in a
node that are used by other drivers like 'assigned-clocks' and
'assigned-clock-rates' for some older Rockchip SoCs in 'gpu' nodes,
so add them to 'arm,mali-utgard.yaml'.
Signed-off-by: Johan Jonker <jbx6244@gmail.com>
---
Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml
index 4869258da..2fc97c544 100644
--- a/Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml
+++ b/Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml
@@ -95,6 +95,12 @@ properties:
- const: bus
- const: core
+ assigned-clocks:
+ maxItems: 1
+
+ assigned-clock-rates:
+ maxItems: 1
+
memory-region: true
mali-supply: true
--
2.11.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] dt-bindings: gpu: arm,mali-utgard: add additional properties
2020-05-19 16:44 [PATCH] dt-bindings: gpu: arm,mali-utgard: add additional properties Johan Jonker
@ 2020-05-19 19:06 ` Heiko Stübner
0 siblings, 0 replies; 2+ messages in thread
From: Heiko Stübner @ 2020-05-19 19:06 UTC (permalink / raw)
To: Johan Jonker
Cc: robh+dt, maxime.ripard, airlied, daniel, dri-devel, devicetree,
linux-arm-kernel, linux-rockchip, linux-kernel
Hi,
Am Dienstag, 19. Mai 2020, 18:44:25 CEST schrieb Johan Jonker:
> In the old txt situation we add/describe only properties that are used
> by the driver/hardware itself. With yaml it also filters things in a
> node that are used by other drivers like 'assigned-clocks' and
> 'assigned-clock-rates' for some older Rockchip SoCs in 'gpu' nodes,
> so add them to 'arm,mali-utgard.yaml'.
though the other option would be to just get rid assigned-clocks
in dt-node for utgard malis ;-)
Like any good gpu, lima should just use frequency scaling to achieve
suitable (fast <-> powersaving) frequencies and it looks like a set
of patches for this was posted in december already [0].
So I guess one could expect opp-based scaling to land at some point.
Heiko
[0] https://lwn.net/Articles/807444/
^ permalink raw reply [flat|nested] 2+ messages in thread
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