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Lin" , Nathan Lu , Hsiao Chien Sung , Yongqiang Niu , Hans Verkuil , Mauro Carvalho Chehab , , , , , Subject: [PATCH v8 04/23] dt-bindings: display: mediatek: padding: Add MT8188 Date: Mon, 16 Oct 2023 18:39:51 +0800 Message-ID: <20231016104010.3270-5-shawn.sung@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20231016104010.3270-1-shawn.sung@mediatek.com> References: <20231016104010.3270-1-shawn.sung@mediatek.com> MIME-Version: 1.0 X-MTK: N X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on howler.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (howler.vger.email [0.0.0.0]); Mon, 16 Oct 2023 03:42:20 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1779908416642089548 X-GMAIL-MSGID: 1779908416642089548 Padding is a new hardware module on MediaTek MT8188, add dt-bindings for it. Reviewed-by: Krzysztof Kozlowski Reviewed-by: CK Hu Signed-off-by: Hsiao Chien Sung Reviewed-by: AngeloGioacchino Del Regno --- .../display/mediatek/mediatek,padding.yaml | 81 +++++++++++++++++++ 1 file changed, 81 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,padding.yaml diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,padding.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,padding.yaml new file mode 100644 index 000000000000..db24801ebc48 --- /dev/null +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,padding.yaml @@ -0,0 +1,81 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/mediatek/mediatek,padding.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MediaTek Display Padding + +maintainers: + - Chun-Kuang Hu + - Philipp Zabel + +description: + Padding provides ability to add pixels to width and height of a layer with + specified colors. Due to hardware design, Mixer in VDOSYS1 requires + width of a layer to be 2-pixel-align, or 4-pixel-align when ETHDR is enabled, + we need Padding to deal with odd width. + Please notice that even if the Padding is in bypass mode, settings in + register must be cleared to 0, or undefined behaviors could happen. + +properties: + compatible: + const: mediatek,mt8188-padding + + reg: + maxItems: 1 + + power-domains: + maxItems: 1 + + clocks: + items: + - description: RDMA Clock + + mediatek,gce-client-reg: + description: + GCE (Global Command Engine) is a multi-core micro processor that helps + its clients to execute commands without interrupting CPU. This property + describes GCE client's information that is composed by 4 fields. + 1. Phandle of the GCE (there may be several GCE processors) + 2. Sub-system ID defined in the dt-binding like a user ID + (Please refer to include/dt-bindings/gce/-gce.h) + 3. Offset from base address of the subsys you are at + 4. Size of the register the client needs + $ref: /schemas/types.yaml#/definitions/phandle-array + items: + items: + - description: Phandle of the GCE + - description: Subsys ID defined in the dt-binding + - description: Offset from base address of the subsys + - description: Size of register + maxItems: 1 + +required: + - compatible + - reg + - power-domains + - clocks + - mediatek,gce-client-reg + +additionalProperties: false + +examples: + - | + #include + #include + #include + #include + + soc { + #address-cells = <2>; + #size-cells = <2>; + + padding0: padding@1c11d000 { + compatible = "mediatek,mt8188-padding"; + reg = <0 0x1c11d000 0 0x1000>; + clocks = <&vdosys1 CLK_VDO1_PADDING0>; + power-domains = <&spm MT8188_POWER_DOMAIN_VDOSYS1>; + mediatek,gce-client-reg = <&gce0 SUBSYS_1c11XXXX 0xd000 0x1000>; + }; + };