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[2003:e4:1f1c:4d00:f22f:74ff:fe1f:3a53]) by smtp.gmail.com with UTF8SMTPSA id 5b1f17b1804b1-45b7e898b99sm202121435e9.19.2025.09.02.08.46.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 02 Sep 2025 08:46:43 -0700 (PDT) From: Thierry Reding To: Thierry Reding , David Airlie , Simona Vetter , Sumit Semwal Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Benjamin Gaignard , Brian Starkey , John Stultz , "T.J. Mercier" , Andrew Morton , David Hildenbrand , Mike Rapoport , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-tegra@vger.kernel.org, linaro-mm-sig@lists.linaro.org, linux-mm@kvack.org Subject: [PATCH 2/9] dt-bindings: display: tegra: Document memory regions Date: Tue, 2 Sep 2025 17:46:22 +0200 Message-ID: <20250902154630.4032984-3-thierry.reding@gmail.com> X-Mailer: git-send-email 2.50.0 In-Reply-To: <20250902154630.4032984-1-thierry.reding@gmail.com> References: <20250902154630.4032984-1-thierry.reding@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: mh3o9j13d5i7uz4uhniqicxasjyjbd5z X-Rspam-User: X-Rspamd-Queue-Id: 96CBF40009 X-Rspamd-Server: rspam01 X-HE-Tag: 1756828009-6800 X-HE-Meta: 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 JMj5B8OE 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: From: Thierry Reding Add the memory-region and memory-region-names properties to the bindings for the display controllers and the host1x engine found on various Tegra generations. These memory regions are used to access firmware-provided framebuffer memory as well as the video protection region. Signed-off-by: Thierry Reding --- .../bindings/display/tegra/nvidia,tegra186-dc.yaml | 10 ++++++++++ .../bindings/display/tegra/nvidia,tegra20-dc.yaml | 10 +++++++++- .../bindings/display/tegra/nvidia,tegra20-host1x.yaml | 7 +++++++ 3 files changed, 26 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra186-dc.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra186-dc.yaml index ce4589466a18..881bfbf4764d 100644 --- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra186-dc.yaml +++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra186-dc.yaml @@ -57,6 +57,16 @@ properties: - const: dma-mem # read-0 - const: read-1 + memory-region: + minItems: 1 + maxItems: 2 + + memory-region-names: + items: + enum: [ framebuffer, protected ] + minItems: 1 + maxItems: 2 + nvidia,outputs: description: A list of phandles of outputs that this display controller can drive. diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dc.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dc.yaml index 69be95afd562..a012644eeb7d 100644 --- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dc.yaml +++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dc.yaml @@ -65,7 +65,15 @@ properties: items: - description: phandle to the core power domain - memory-region: true + memory-region: + minItems: 1 + maxItems: 2 + + memory-region-names: + items: + enum: [ framebuffer, protected ] + minItems: 1 + maxitems: 2 nvidia,head: $ref: /schemas/types.yaml#/definitions/uint32 diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml index 3563378a01af..f45be30835a8 100644 --- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml +++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml @@ -96,6 +96,13 @@ properties: items: - description: phandle to the HEG or core power domain + memory-region: + maxItems: 1 + + memory-region-names: + items: + - const: protected + required: - compatible - interrupts -- 2.50.0