From 2ac03d0811b94c2397d5ec3c82a65a112aeab5b0 Mon Sep 17 00:00:00 2001 From: Macpaul Lin Date: Sat, 12 Oct 2024 11:50:16 +0800 Subject: [PATCH] dt-bindings: phy: mediatek: tphy: add a property for power-domains Include the MediaTek TPHY in a power domain. Add the 'power-domains' property in the Device Tree (DT) Schema and set 'maxItems: 1'. Also, include a reminder in the description of the 'power-domains' property. Signed-off-by: Macpaul Lin Reviewed-by: AngeloGioacchino Del Regno Acked-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20241012035016.17667-1-macpaul.lin@mediatek.com Signed-off-by: Vinod Koul --- .../devicetree/bindings/phy/mediatek,tphy.yaml | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml b/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml index 423b7c4e62f2a..6be3aa4557e55 100644 --- a/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml +++ b/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml @@ -125,6 +125,16 @@ properties: $ref: /schemas/types.yaml#/definitions/uint32 default: 28 + power-domains: + description: + The TPHY of MediaTek should exist within a power domain. The + developer should be aware that the hardware design of MediaTek TPHY + does not require the addition of MTCMOS. If the power to the TPHY + is turned off, it will impact other functions. From the current + perspective of USB hardware design, even if MTCMOS is added to the + TPHY, it should remain always on. + maxItems: 1 + # Required child node: patternProperties: "^(usb|pcie|sata)-phy@[0-9a-f]+$": -- 2.50.1