From: Guillaume Tucker <guillaume.tucker@collabora.com>
To: Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>
Cc: Sjoerd Simons <sjoerd.simons@collabora.com>,
Enric Balletbo i Serra <enric.balletbo@collabora.com>,
John Reitan <john.reitan@arm.com>, Wookey <wookey@wookware.org>,
devicetree@vger.kernel.org, linux-rockchip@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Guillaume Tucker <guillaume.tucker@collabora.com>
Subject: [PATCH v2 1/5] dt-bindings: gpu: add bindings for the ARM Mali Midgard GPU
Date: Sun, 2 Apr 2017 08:59:44 +0100 [thread overview]
Message-ID: <db45d0d68957d699f13a0d92f4f84d8ebfd0270e.1491118230.git.guillaume.tucker@collabora.com> (raw)
In-Reply-To: <cover.1491118230.git.guillaume.tucker@collabora.com>
In-Reply-To: <cover.1491118230.git.guillaume.tucker@collabora.com>
The ARM Mali Midgard GPU family is present in a number of SoCs
from many different vendors such as Samsung Exynos and Rockchip.
Import the device tree bindings documentation from the r16p0
release of the Mali Midgard GPU kernel driver:
https://developer.arm.com/-/media/Files/downloads/mali-drivers/kernel/mali-midgard-gpu/TX011-SW-99002-r16p0-00rel0.tgz
The following optional bindings have been omitted in this initial
version as they are only used in very specific cases:
* snoop_enable_smc
* snoop_disable_smc
* jm_config
* power_model
* system-coherency
* ipa-model
The example has been simplified accordingly.
The compatible string definition has been limited to
"arm,mali-midgard" to avoid checkpatch.pl warnings and to match
what the driver actually expects (as of r16p0 out-of-tree).
CC: John Reitan <john.reitan@arm.com>
Signed-off-by: Guillaume Tucker <guillaume.tucker@collabora.com>
---
.../devicetree/bindings/gpu/arm,mali-midgard.txt | 53 ++++++++++++++++++++++
1 file changed, 53 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt
diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt b/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt
new file mode 100644
index 000000000000..da8fc6d21bbf
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt
@@ -0,0 +1,53 @@
+#
+# (C) COPYRIGHT 2013-2016 ARM Limited.
+# Copyright (C) 2017 Collabora Ltd
+#
+# This program is free software and is provided to you under the terms of the
+# GNU General Public License version 2 as published by the Free Software
+# Foundation, and any use by you of this program is subject to the terms
+# of such GNU licence.
+#
+
+
+ARM Mali Midgard GPU
+====================
+
+Required properties:
+
+- compatible : Should be "arm,mali-midgard".
+- reg : Physical base address of the device and length of the register area.
+- interrupts : Contains the three IRQ lines required by Mali Midgard devices.
+- interrupt-names : Contains the names of IRQ resources in the order they were
+ provided in the interrupts property. Must contain: "JOB, "MMU", "GPU".
+
+Optional:
+
+- clocks : Phandle to clock for the Mali Midgard device.
+- clock-names : Shall be "clk_mali".
+- mali-supply : Phandle to regulator for the Mali device. Refer to
+ Documentation/devicetree/bindings/regulator/regulator.txt for details.
+- operating-points : Refer to Documentation/devicetree/bindings/power/opp.txt
+ for details.
+
+Example for a Mali-T602:
+
+gpu@0xfc010000 {
+ compatible = "arm,mali-midgard";
+ reg = <0xfc010000 0x4000>;
+ interrupts = <0 36 4>, <0 37 4>, <0 38 4>;
+ interrupt-names = "JOB", "MMU", "GPU";
+
+ clocks = <&pclk_mali>;
+ clock-names = "clk_mali";
+ mali-supply = <&vdd_mali>;
+ operating-points = <
+ /* KHz uV */
+ 533000 1250000,
+ 450000 1150000,
+ 400000 1125000,
+ 350000 1075000,
+ 266000 1025000,
+ 160000 925000,
+ 100000 912500,
+ >;
+};
--
2.11.0
next prev parent reply other threads:[~2017-04-02 8:00 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-02 7:59 [PATCH v2 0/5] Add ARM Mali Midgard device tree bindings and gpu node for rk3288 Guillaume Tucker
2017-04-02 7:59 ` Guillaume Tucker [this message]
2017-04-03 8:12 ` [PATCH v2 1/5] dt-bindings: gpu: add bindings for the ARM Mali Midgard GPU Neil Armstrong
2017-04-11 17:40 ` Guillaume Tucker
2017-04-11 20:52 ` Heiko Stübner
2017-04-12 8:25 ` Guillaume Tucker
2017-04-12 8:48 ` Neil Armstrong
2017-04-12 9:36 ` Guillaume Tucker
2017-04-24 13:02 ` Rob Herring
2017-04-04 2:00 ` Rob Herring
2017-04-18 9:15 ` Guillaume Tucker
2017-04-24 10:43 ` Guillaume Tucker
2017-04-02 7:59 ` [PATCH v2 2/5] ARM: dts: rockchip: add ARM Mali GPU node for rk3288 Guillaume Tucker
2017-04-02 10:41 ` Enric Balletbo i Serra
2017-04-02 7:59 ` [PATCH v2 3/5] ARM: dts: rockchip: enable ARM Mali GPU on rk3288-rock2-som Guillaume Tucker
2017-04-02 7:59 ` [PATCH v2 4/5] ARM: dts: rockchip: enable ARM Mali GPU on rk3288-firefly Guillaume Tucker
2017-04-02 7:59 ` [PATCH v2 5/5] ARM: dts: rockchip: enable ARM Mali GPU on rk3288-veyron Guillaume Tucker
2017-04-03 22:54 ` [PATCH v2 0/5] Add ARM Mali Midgard device tree bindings and gpu node for rk3288 Heiko Stübner
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