* [PATCH v2 1/2] dt-bindings: gpu: mali-midgard: Add resets property
[not found] <20190315135655.28359-1-narmstrong@baylibre.com>
@ 2019-03-15 13:56 ` Neil Armstrong
2019-03-31 6:40 ` Rob Herring
0 siblings, 1 reply; 2+ messages in thread
From: Neil Armstrong @ 2019-03-15 13:56 UTC (permalink / raw)
To: devicetree, khilman, icenowy
Cc: linux-amlogic, linux-kernel, linux-arm-kernel, dri-devel,
Neil Armstrong
The Amlogic ARM Mali Midgard requires reset controls to power on and
software reset the GPU, adds these as optional in the bindings.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
---
.../devicetree/bindings/gpu/arm,mali-midgard.txt | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt b/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt
index 18a2cde2e5f3..1b1a74129141 100644
--- a/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt
+++ b/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt
@@ -37,6 +37,20 @@ Optional properties:
- operating-points-v2 : Refer to Documentation/devicetree/bindings/opp/opp.txt
for details.
+- resets : Phandle of the GPU reset line.
+
+Vendor-specific bindings
+------------------------
+
+The Mali GPU is integrated very differently from one SoC to
+another. In order to accomodate those differences, you have the option
+to specify one more vendor-specific compatible, among:
+
+- "amlogic,meson-gxm-mali"
+ Required properties:
+ - resets : Should contain phandles of :
+ + GPU reset line
+ + GPU APB glue reset line
Example for a Mali-T760:
--
2.20.1
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