Il 23/09/25 13:39, Nicolas Frattaroli ha scritto:
On the MT8196 and MT6991 SoCs, the GPU power and frequency is controlled
by some integration logic, referred to as "MFlexGraphics" by MediaTek,
which comes in the form of an embedded controller running
special-purpose firmware.
This controller takes care of the regulators and PLL clock frequencies
to squeeze the maximum amount of power out of the silicon.
Add a binding which models it as a power domain.
Signed-off-by: Nicolas Frattaroli <nicolas.frattar...@collabora.com>
---
.../bindings/power/mediatek,mt8196-gpufreq.yaml | 117 +++++++++++++++++++++
1 file changed, 117 insertions(+)
diff --git
a/Documentation/devicetree/bindings/power/mediatek,mt8196-gpufreq.yaml
b/Documentation/devicetree/bindings/power/mediatek,mt8196-gpufreq.yaml
new file mode 100644
index
0000000000000000000000000000000000000000..03721244a737ce0914a89cc0aedd88fa3b6b2038
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/mediatek,mt8196-gpufreq.yaml
@@ -0,0 +1,117 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/mediatek,mt8196-gpufreq.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek MFlexGraphics Power and Frequency Controller
+
+maintainers:
+ - Nicolas Frattaroli <nicolas.frattar...@collabora.com>
+
+description: |
This vertical bar is not needed. Please drop it.
Cheers,
Angelo
+ A special-purpose embedded MCU to control power and frequency of GPU devices
+ using MediaTek Flexible Graphics integration hardware.
+
