linux-kernel - [PATCH v2 1/2] dt-bindings: usb: dwc3: drop 'snps,host-vbus-glitches-quirk'

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Message-Id: <20240212-vbus-glitch-v2-1-d71b73a82de1@nxp.com>
Date: Mon, 12 Feb 2024 11:19:07 -0500
From: Frank Li <Frank.Li@....com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
 Conor Dooley <conor+dt@...nel.org>, Felipe Balbi <balbi@...nel.org>, 
 Thinh Nguyen <Thinh.Nguyen@...opsys.com>
Cc: linux-usb@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, imx@...ts.linux.dev, 
 Frank Li <Frank.Li@....com>
Subject: [PATCH v2 1/2] dt-bindings: usb: dwc3: drop
 'snps,host-vbus-glitches-quirk'

Drop 'snps,host-vbus-glitches-quirk'. It is safer to keep vbus disabled
before handing over to xhci driver. Needn't this property to control enable
workaround. Apply workaround unconditional.

Signed-off-by: Frank Li <Frank.Li@....com>
---
 Documentation/devicetree/bindings/usb/snps,dwc3.yaml | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
index 8f5d250070c78..203a1eb66691f 100644
--- a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
+++ b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
@@ -273,13 +273,6 @@ properties:
       with an external supply.
     type: boolean
 
-  snps,host-vbus-glitches-quirk:
-    description:
-      When set, power off all Root Hub ports immediately after
-      setting host mode to avoid vbus (negative) glitch happen in later
-      xhci reset. And the vbus will back to 5V automatically when reset done.
-    type: boolean
-
   snps,is-utmi-l1-suspend:
     description:
       True when DWC3 asserts output signal utmi_l1_suspend_n, false when

-- 
2.34.1