linux-kernel - [PATCH 1/2] dt-bindings: gpu: add bus clock for Mali Midgard GPUs

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Date:   Tue, 27 Nov 2018 15:42:48 +0800
From:   Icenowy Zheng <icenowy@...c.io>
To:     Jernej Skrabec <jernej.skrabec@...l.net>,
        Chen-Yu Tsai <wens@...e.org>,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        David Airlie <airlied@...ux.ie>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Cc:     dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com,
        Icenowy Zheng <icenowy@...c.io>
Subject: [PATCH 1/2] dt-bindings: gpu: add bus clock for Mali Midgard GPUs

Some SoCs adds a bus clock gate to the Mali Midgard GPU.

Add the binding for the bus clock.

Signed-off-by: Icenowy Zheng <icenowy@...c.io>
---
 Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt b/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt
index 18a2cde2e5f3..02f870cd60e6 100644
--- a/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt
+++ b/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt
@@ -31,6 +31,12 @@ Optional properties:
 
 - clocks : Phandle to clock for the Mali Midgard device.
 
+- clock-names : Specify the names of the clocks specified in clocks
+  when multiple clocks are present.
+    * bus: bus clock for the GPU
+    * core: clock driving the GPU itself (When only one clock is present,
+      assume it's this clock.)
+
 - mali-supply : Phandle to regulator for the Mali device. Refer to
   Documentation/devicetree/bindings/regulator/regulator.txt for details.
 
-- 
2.18.1