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Thu, 10 Oct 2024 23:48:17 -0700 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by MTKMBS14N1.mediatek.inc (172.21.101.75) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Fri, 11 Oct 2024 14:48:13 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Fri, 11 Oct 2024 14:48:13 +0800 From: Macpaul Lin To: Chunfeng Yun , Vinod Koul , Kishon Vijay Abraham I , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno , , , , , CC: Bear Wang , Pablo Sun , Macpaul Lin , Macpaul Lin , Subject: [PATCH v2] dt-bindings: phy: mediatek: tphy: add a property for power-domains Date: Fri, 11 Oct 2024 14:48:10 +0800 Message-ID: <20241011064810.5103-1-macpaul.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 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--2.165100-8.000000 X-TMASE-MatchedRID: k8Cd32tj8sGMNoAzq9nHoWNW0DAjL5p++OI6XsK3BWHfUZT83lbkEJVD ZsT0rYWCqP2RhwqsDVhYSGAnlsUp3lAXAjgfNI2iRy+94mWbR+blOkM7VYqzaZi7/tnxUUyGo8W MkQWv6iXBcIE78YqRWo6HM5rqDwqt7aENEMomdGuGxZsjVPBjfObxZIv/aSQArgevuQgg4NYHJD IxduTwSZmxuzUAi+Dfup5+b9g7ZTRiF54b8Md0Br5sQoYg/dmD4sOrsb4iT/K/bbEolHIgZUOc7 GjOamnWv5a9cmIodEspRnLV2kwrLg== X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--2.165100-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: 4AD9FFC112EA5D5D7D7DB547735B4F1CC3D11219A3110772C6367C57CD5144FB2000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241010_234822_816705_E3F01E8D X-CRM114-Status: GOOD ( 10.48 ) 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 MediaTek TPHY should be existed in a power-domains. So we add property 'power-domains' and set 'maxItems: 1' in the DT Schema. A reminder is also added to the description of 'power-domains' property. Signed-off-by: Macpaul Lin Reviewed-by: AngeloGioacchino Del Regno Acked-by: Krzysztof Kozlowski --- .../devicetree/bindings/phy/mediatek,tphy.yaml | 10 ++++++++++ 1 file changed, 10 insertions(+) Changes for v2: - Add a reminder in description of 'power-domains' property. - Fix commit message from v1. diff --git a/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml b/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml index 423b7c4e62f2..6be3aa4557e5 100644 --- a/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml +++ b/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml @@ -125,6 +125,16 @@ properties: $ref: /schemas/types.yaml#/definitions/uint32 default: 28 + power-domains: + description: + The TPHY of MediaTek should exist within a power domain. The + developer should be aware that the hardware design of MediaTek TPHY + does not require the addition of MTCMOS. If the power to the TPHY + is turned off, it will impact other functions. From the current + perspective of USB hardware design, even if MTCMOS is added to the + TPHY, it should remain always on. + maxItems: 1 + # Required child node: patternProperties: "^(usb|pcie|sata)-phy@[0-9a-f]+$":