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J . Mercier" , Andrew Morton , David Hildenbrand , Mike Rapoport , Sumit Garg , 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 v2 02/10] dt-bindings: display: tegra: Document memory regions Date: Thu, 22 Jan 2026 17:10:01 +0100 Message-ID: <20260122161009.3865888-3-thierry.reding@kernel.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260122161009.3865888-1-thierry.reding@kernel.org> References: <20260122161009.3865888-1-thierry.reding@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 007041C0015 X-Stat-Signature: f9js9fx3sphahdst4xb4fy3egjcgyp3a X-Rspam-User: X-Rspamd-Server: rspam02 X-HE-Tag: 1769098222-394092 X-HE-Meta: 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 vTR/dAZU QzpbRC4HKYhSReJ2NUzGIhpnijERTYqY06HuX31XIY9qN0FpaWUdNlJNUoC99fze63EtHQc/ifkyFUuk9JNzc2/uk3hIV7FbyQH0JCWCLYcKFpoNA3z5b1kk1VL+FDQtwNflkkOh68jU3mdT2CjQa96oNNFytJrGOWNIgmGkQcW29+zzNVE+m9aXE51SBxNoW2257By+Y4jm5yVtwgka6Gu4XKgd9S7W76l7y2MSy1jnSuSAIluFG/YzTV39BiWbAPGq1wJiUYv2gv+++zl9zhGNQ9Gq+CS/niKKaW6ep2jDLvXWtBznUKKw46Q== 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 -- 2.52.0