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[109.252.193.186]) by smtp.gmail.com with ESMTPSA id k13sm932423ljh.136.2020.10.25.15.18.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 25 Oct 2020 15:18:06 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Georgi Djakov , Rob Herring , Michael Turquette , Stephen Boyd , Peter De Schrijver , MyungJoo Ham , Kyungmin Park , Chanwoo Choi , Mikko Perttunen , Viresh Kumar , Peter Geis , Nicolas Chauvet , Krzysztof Kozlowski Cc: linux-tegra@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org Subject: [PATCH v6 16/52] dt-bindings: host1x: Document new interconnect properties Date: Mon, 26 Oct 2020 01:16:59 +0300 Message-Id: <20201025221735.3062-17-digetx@gmail.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20201025221735.3062-1-digetx@gmail.com> References: <20201025221735.3062-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Most of Host1x devices have at least one memory client. These clients are directly connected to the memory controller. The new interconnect properties represent the memory client's connection to the memory controller. Reviewed-by: Rob Herring Signed-off-by: Dmitry Osipenko --- .../display/tegra/nvidia,tegra20-host1x.txt | 68 +++++++++++++++++++ 1 file changed, 68 insertions(+) diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt index ac63ae4a3861..814246e51954 100644 --- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt +++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt @@ -20,6 +20,10 @@ Required properties: - reset-names: Must include the following entries: - host1x +Each host1x client module having to perform DMA through the Memory Controller +should have the interconnect endpoints set to the Memory Client and External +Memory respectively. + The host1x top-level node defines a number of children, each representing one of the following host1x client modules: @@ -36,6 +40,12 @@ of the following host1x client modules: - reset-names: Must include the following entries: - mpe + Optional properties: + - interconnects: Must contain entry for the MPE memory clients. + - interconnect-names: Must include name of the interconnect path for each + interconnect entry. Consult TRM documentation for information about + available memory clients, see MEMORY CONTROLLER section. + - vi: video input Required properties: @@ -113,6 +123,12 @@ of the following host1x client modules: Required properties: - remote-endpoint: phandle to vi port 'endpoint' node. + Optional properties: + - interconnects: Must contain entry for the VI memory clients. + - interconnect-names: Must include name of the interconnect path for each + interconnect entry. Consult TRM documentation for information about + available memory clients, see MEMORY CONTROLLER section. + - epp: encoder pre-processor Required properties: @@ -126,6 +142,12 @@ of the following host1x client modules: - reset-names: Must include the following entries: - epp + Optional properties: + - interconnects: Must contain entry for the EPP memory clients. + - interconnect-names: Must include name of the interconnect path for each + interconnect entry. Consult TRM documentation for information about + available memory clients, see MEMORY CONTROLLER section. + - isp: image signal processor Required properties: @@ -139,6 +161,12 @@ of the following host1x client modules: - reset-names: Must include the following entries: - isp + Optional properties: + - interconnects: Must contain entry for the ISP memory clients. + - interconnect-names: Must include name of the interconnect path for each + interconnect entry. Consult TRM documentation for information about + available memory clients, see MEMORY CONTROLLER section. + - gr2d: 2D graphics engine Required properties: @@ -152,6 +180,12 @@ of the following host1x client modules: - reset-names: Must include the following entries: - 2d + Optional properties: + - interconnects: Must contain entry for the GR2D memory clients. + - interconnect-names: Must include name of the interconnect path for each + interconnect entry. Consult TRM documentation for information about + available memory clients, see MEMORY CONTROLLER section. + - gr3d: 3D graphics engine Required properties: @@ -170,6 +204,12 @@ of the following host1x client modules: - 3d - 3d2 (Only required on SoCs with two 3D clocks) + Optional properties: + - interconnects: Must contain entry for the GR3D memory clients. + - interconnect-names: Must include name of the interconnect path for each + interconnect entry. Consult TRM documentation for information about + available memory clients, see MEMORY CONTROLLER section. + - dc: display controller Required properties: @@ -197,6 +237,10 @@ of the following host1x client modules: - nvidia,hpd-gpio: specifies a GPIO used for hotplug detection - nvidia,edid: supplies a binary EDID blob - nvidia,panel: phandle of a display panel + - interconnects: Must contain entry for the DC memory clients. + - interconnect-names: Must include name of the interconnect path for each + interconnect entry. Consult TRM documentation for information about + available memory clients, see MEMORY CONTROLLER section. - hdmi: High Definition Multimedia Interface @@ -345,6 +389,12 @@ of the following host1x client modules: - reset-names: Must include the following entries: - vic + Optional properties: + - interconnects: Must contain entry for the VIC memory clients. + - interconnect-names: Must include name of the interconnect path for each + interconnect entry. Consult TRM documentation for information about + available memory clients, see MEMORY CONTROLLER section. + Example: / { @@ -498,6 +548,15 @@ Example: resets = <&tegra_car 27>; reset-names = "dc"; + interconnects = <&mc TEGRA20_MC_DISPLAY0A &emc>, + <&mc TEGRA20_MC_DISPLAY0B &emc>, + <&mc TEGRA20_MC_DISPLAY0C &emc>, + <&mc TEGRA20_MC_DISPLAY1B &emc>; + interconnect-names = "wina", + "winb", + "winc", + "cursor"; + rgb { status = "disabled"; }; @@ -513,6 +572,15 @@ Example: resets = <&tegra_car 26>; reset-names = "dc"; + interconnects = <&mc TEGRA20_MC_DISPLAY0AB &emc>, + <&mc TEGRA20_MC_DISPLAY0BB &emc>, + <&mc TEGRA20_MC_DISPLAY0CB &emc>, + <&mc TEGRA20_MC_DISPLAY1BB &emc>; + interconnect-names = "wina", + "winb", + "winc", + "cursor"; + rgb { status = "disabled"; };