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authorNeil Armstrong <narmstrong@baylibre.com>2019-03-15 14:56:54 +0100
committerKevin Hilman <khilman@baylibre.com>2019-04-01 21:42:01 -0700
commitd5ff1adb3809e2f74a3b57cea2e57c8e37d693c4 (patch)
tree3aae5f048f3327c8eaf64d86971f600db02ba451
parente2cffeb398f4830b004774444809ee256b9bc653 (diff)
dt-bindings: gpu: mali-midgard: Add resets property
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> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
-rw-r--r--Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt14
1 files changed, 14 insertions, 0 deletions
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: