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Lin" , , , , , , , Alexandre Mergnat CC: Bear Wang , Pablo Sun , Macpaul Lin , Sen Chu , "Chris-qj chen" , MediaTek Chromebook Upstream , Chen-Yu Tsai Subject: [PATCH v3 5/5] dt-bindings: display: mediatek: dpi: correct power-domains property Date: Fri, 27 Sep 2024 14:50:41 +0800 Message-ID: <20240927065041.15247-5-macpaul.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20240927065041.15247-1-macpaul.lin@mediatek.com> References: <20240927065041.15247-1-macpaul.lin@mediatek.com> MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--9.384400-8.000000 X-TMASE-MatchedRID: tfUp3kDdFrlpqqYAQ+J6uSYRREGYqtmUmoKXVHfiMM9KUzR+o2IehUGW yClQhQkvKY6B7sY8Ci7dRIKCUEZlk77J5yv1W35KA9lly13c/gG+1Vx7rDn4ryJ8zskw0dbrzTO MdSL65dGPBBqsttKK1ATOtv1QaDkraxXbwRJk57z0hv/rD7WVZA+jS+LRpl81pzPA3TKVblhgIS cCiWkKENIS3Y3mrYfn3DCWtTm2Z99RAFy9FG9Tvev8QGaI25e3D+LwVja9M4GbKItl61J/yZ+in TK0bC9eKrauXd3MZDUzaXOJNfDG7df9dBya+tT4Bm14c7FgKKADsOKi2fzUXUhbIc2LUS9M X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--9.384400-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: E193EE1736A7BC2525CB5DE5945DF5D1462A8EE6C095E710895B52A9B4EA55682000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240926_235053_414311_224ACCA2 X-CRM114-Status: GOOD ( 15.60 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The MediaTek DPI module is typically associated with one of the following multimedia power domains: - POWER_DOMAIN_DISPLAY - POWER_DOMAIN_VDOSYS - POWER_DOMAIN_MM The specific power domain used varies depending on the SoC design. These power domains are shared by multiple devices within the SoC. In most cases, these power domains are enabled by other devices. As a result, the DPI module of legacy SoCs often functions correctly even without explicit configuration. It is recommended to explicitly add the appropriate power domain property to the DPI node in the device tree. Hence drop the compatible checking for specific SoCs. Fixes: 5474d49b2f79 ("dt-bindings: display: mediatek: dpi: Add power domains") Signed-off-by: Macpaul Lin Signed-off-by: Jitao Shi Signed-off-by: Pablo Sun Reviewed-by: Krzysztof Kozlowski --- .../display/mediatek/mediatek,dpi.yaml | 24 ++++++++----------- 1 file changed, 10 insertions(+), 14 deletions(-) Changes for v2: - Because of the corresponding dts fix has been reviewed with a Reviewed-by: tag. [1] https://lore.kernel.org/all/20240925080515.16377-1-macpaul.lin@mediatek.com/ We still need this change to fix the 2 dtbs_check errors. So keeps no change here. Changes for v3: - The origin patch is [2] https://lore.kernel.org/all/20240926111449.9245-2-macpaul.lin@mediatek.com/ - Thanks for Conor's reminding, after MediaTek's internal discussion, This patch v3 is the replacement of [2] v2. Because the DPI module should has a explicit configuration with power domain. - Drop Acked-by: tag since v3 is nearly a new patch for different approach. diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml index 3a82aec9021c..497c0eb4ed0b 100644 --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml @@ -63,6 +63,16 @@ properties: - const: sleep power-domains: + description: | + The MediaTek DPI module is typically associated with one of the + following multimedia power domains: + POWER_DOMAIN_DISPLAY + POWER_DOMAIN_VDOSYS + POWER_DOMAIN_MM + The specific power domain used varies depending on the SoC design. + + It is recommended to explicitly add the appropriate power domain + property to the DPI node in the device tree. maxItems: 1 port: @@ -79,20 +89,6 @@ required: - clock-names - port -allOf: - - if: - not: - properties: - compatible: - contains: - enum: - - mediatek,mt6795-dpi - - mediatek,mt8173-dpi - - mediatek,mt8186-dpi - then: - properties: - power-domains: false - additionalProperties: false examples: