linux-kernel - [PATCH v12 08/35] dt-bindings: host1x: Document Memory Client resets of Host1x, GR2D and GR3D

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Message-Id: <20210920181145.19543-9-digetx@gmail.com>
Date:   Mon, 20 Sep 2021 21:11:18 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Viresh Kumar <vireshk@...nel.org>,
        Stephen Boyd <sboyd@...nel.org>,
        Peter De Schrijver <pdeschrijver@...dia.com>,
        Mikko Perttunen <mperttunen@...dia.com>,
        Peter Chen <peter.chen@...nel.org>,
        Lee Jones <lee.jones@...aro.org>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>, Nishanth Menon <nm@...com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Rob Herring <robh+dt@...nel.org>,
        Michael Turquette <mturquette@...libre.com>
Cc:     linux-kernel@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-pm@...r.kernel.org, linux-usb@...r.kernel.org,
        linux-staging@...ts.linux.dev, linux-pwm@...r.kernel.org,
        linux-mmc@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        devicetree@...r.kernel.org, linux-clk@...r.kernel.org,
        Mark Brown <broonie@...nel.org>,
        Vignesh Raghavendra <vigneshr@...com>,
        Richard Weinberger <richard@....at>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Lucas Stach <dev@...xeye.de>, Stefan Agner <stefan@...er.ch>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        David Heidelberg <david@...t.cz>
Subject: [PATCH v12 08/35] dt-bindings: host1x: Document Memory Client resets of Host1x, GR2D and GR3D

Memory Client should be blocked before hardware reset is asserted in order
to prevent memory corruption and hanging of memory controller.

Document Memory Client resets of Host1x, GR2D and GR3D hardware units.

Reviewed-by: Rob Herring <robh@...nel.org>
Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
 .../bindings/display/tegra/nvidia,tegra20-host1x.txt          | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt
index 62861a8fb5c6..e61999ce54e9 100644
--- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt
@@ -19,6 +19,7 @@ Required properties:
   See ../reset/reset.txt for details.
 - reset-names: Must include the following entries:
   - host1x
+  - mc
 
 Optional properties:
 - operating-points-v2: See ../bindings/opp/opp.txt for details.
@@ -198,6 +199,7 @@ of the following host1x client modules:
     See ../reset/reset.txt for details.
   - reset-names: Must include the following entries:
     - 2d
+    - mc
 
   Optional properties:
   - interconnects: Must contain entry for the GR2D memory clients.
@@ -224,6 +226,8 @@ of the following host1x client modules:
   - reset-names: Must include the following entries:
     - 3d
     - 3d2 (Only required on SoCs with two 3D clocks)
+    - mc
+    - mc2 (Only required on SoCs with two 3D clocks)
 
   Optional properties:
   - interconnects: Must contain entry for the GR3D memory clients.
-- 
2.32.0