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From: Dmitry Osipenko <digetx@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>,
	Jonathan Hunter <jonathanh@nvidia.com>,
	Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org, linux-tegra@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v3 03/15] dt-bindings: arm: tegra: Document #reset-cells property of the Tegra20 MC
Date: Tue, 20 Feb 2018 19:25:16 +0300	[thread overview]
Message-ID: <c16e37ca23b7a3c53d121ba85889bb6f35576557.1519141896.git.digetx@gmail.com> (raw)
In-Reply-To: <cover.1519141896.git.digetx@gmail.com>
In-Reply-To: <cover.1519141896.git.digetx@gmail.com>

Memory Controller has a memory client "hot reset" functionality, which
resets the DMA interface of a memory client, so MC is a reset controller.
Documentation the new property.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 .../devicetree/bindings/arm/tegra/nvidia,tegra20-mc.txt      | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-mc.txt b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-mc.txt
index f9632bacbd04..7d60a50a4fa1 100644
--- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-mc.txt
+++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-mc.txt
@@ -6,11 +6,21 @@ Required properties:
   example below. Note that the MC registers are interleaved with the
   GART registers, and hence must be represented as multiple ranges.
 - interrupts : Should contain MC General interrupt.
+- #reset-cells : Should be 1. This cell represents memory client module ID.
+  The assignments may be found in header file <dt-bindings/memory/tegra20-mc.h>
+  or in the TRM documentation.
 
 Example:
-	memory-controller@7000f000 {
+	mc: memory-controller@7000f000 {
 		compatible = "nvidia,tegra20-mc";
 		reg = <0x7000f000 0x024
 		       0x7000f03c 0x3c4>;
 		interrupts = <0 77 0x04>;
+		#reset-cells = <1>;
+	};
+
+	video-codec@6001a000 {
+		compatible = "nvidia,tegra20-vde";
+		...
+		resets = <&mc TEGRA20_MC_RESET_VDE>;
 	};
-- 
2.16.1

  parent reply	other threads:[~2018-02-20 16:25 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-20 16:25 [PATCH v3 00/15] Memory controller hot reset Dmitry Osipenko
2018-02-20 16:25 ` [PATCH v3 01/15] dt-bindings: arm: tegra: Remove duplicated Tegra30+ MC binding Dmitry Osipenko
2018-03-01 21:53   ` Rob Herring
2018-02-20 16:25 ` [PATCH v3 02/15] dt-bindings: memory: tegra: Document #reset-cells property of the Tegra30 MC Dmitry Osipenko
2018-03-01 21:54   ` Rob Herring
2018-02-20 16:25 ` Dmitry Osipenko [this message]
2018-03-01 21:55   ` [PATCH v3 03/15] dt-bindings: arm: tegra: Document #reset-cells property of the Tegra20 MC Rob Herring
2018-02-20 16:25 ` [PATCH v3 04/15] dt-bindings: memory: tegra: Add hot resets definitions Dmitry Osipenko
2018-03-01 21:56   ` Rob Herring
2018-02-20 16:25 ` [PATCH v3 05/15] memory: tegra: Do not handle spurious interrupts Dmitry Osipenko
2018-02-20 16:25 ` [PATCH v3 06/15] memory: tegra: Setup interrupts mask before requesting IRQ Dmitry Osipenko
2018-02-20 16:25 ` [PATCH v3 07/15] memory: tegra: Apply interrupts mask per SoC Dmitry Osipenko
2018-02-20 16:25 ` [PATCH v3 08/15] memory: tegra: Remove unused headers inclusions Dmitry Osipenko
2018-02-20 16:25 ` [PATCH v3 09/15] memory: tegra: Squash tegra20-mc into common tegra-mc driver Dmitry Osipenko
2018-02-20 16:36 ` [PATCH v3 10/15] memory: tegra: Introduce memory client hot reset Dmitry Osipenko
2018-02-20 16:36 ` [PATCH v3 11/15] memory: tegra: Add Tegra210 memory controller hot resets Dmitry Osipenko
2018-02-20 16:36 ` [PATCH v3 12/15] memory: tegra: Add Tegra124 " Dmitry Osipenko
2018-02-20 16:36 ` [PATCH v3 13/15] memory: tegra: Add Tegra114 " Dmitry Osipenko
2018-02-20 16:36 ` [PATCH v3 14/15] memory: tegra: Add Tegra30 " Dmitry Osipenko
2018-02-20 16:36 ` [PATCH v3 15/15] memory: tegra: Add Tegra20 " Dmitry Osipenko

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