From: Neil Armstrong <narmstrong@baylibre.com>
To: devicetree@vger.kernel.org, khilman@baylibre.com, icenowy@aosc.io
Cc: linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
dri-devel@lists.freedesktop.org,
Neil Armstrong <narmstrong@baylibre.com>
Subject: [PATCH v2 1/2] dt-bindings: gpu: mali-midgard: Add resets property
Date: Fri, 15 Mar 2019 14:56:54 +0100 [thread overview]
Message-ID: <20190315135655.28359-2-narmstrong@baylibre.com> (raw)
In-Reply-To: <20190315135655.28359-1-narmstrong@baylibre.com>
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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next prev parent reply other threads:[~2019-03-15 13:57 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-15 13:56 [PATCH v2 0/2] arm64: meson-gxm: Add support for the Mali T820 GPU Neil Armstrong
2019-03-15 13:56 ` Neil Armstrong [this message]
2019-03-31 6:40 ` [PATCH v2 1/2] dt-bindings: gpu: mali-midgard: Add resets property Rob Herring
2019-03-15 13:56 ` [PATCH v2 2/2] arm64: dts: meson-gxm: Add Mali-T820 node Neil Armstrong
2019-04-01 8:48 ` [PATCH v2 0/2] arm64: meson-gxm: Add support for the Mali T820 GPU Neil Armstrong
2019-04-02 4:42 ` Kevin Hilman
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