linux-kernel - Re: [PATCH 1/3] arm64: dts: qcom: sdm670: fix USB DP/DM HS PHY interrupts

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Message-ID: <ZXuv8zgm4kl3fwZV@radian>
Date: Thu, 14 Dec 2023 20:46:27 -0500
From: Richard Acayan <mailingradian@...il.com>
To: Johan Hovold <johan+linaro@...nel.org>
Cc: Bjorn Andersson <andersson@...nel.org>, Andy Gross <agross@...nel.org>,
	Konrad Dybcio <konrad.dybcio@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Krishna Kurapati PSSNV <quic_kriskura@...cinc.com>,
	linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH 1/3] arm64: dts: qcom: sdm670: fix USB DP/DM HS PHY
 interrupts

On Thu, Dec 14, 2023 at 08:43:17AM +0100, Johan Hovold wrote:
> The USB DP/DM HS PHY interrupts need to be provided by the PDC interrupt
> controller in order to be able to wake the system up from low-power
> states and to be able to detect disconnect events, which requires
> triggering on falling edges.
>
> A recent commit updated the trigger type but failed to change the
> interrupt provider as required. This leads to the current Linux driver
> failing to probe instead of printing an error during suspend and USB
> wakeup not working as intended.
>
> Fixes: de3b3de30999 ("arm64: dts: qcom: sdm670: fix USB wakeup interrupt types")
> Fixes: 07c8ded6e373 ("arm64: dts: qcom: add sdm670 and pixel 3a device trees")
> Cc: stable@...r.kernel.org      # 6.2
> Cc: Richard Acayan <mailingradian@...il.com>
> Signed-off-by: Johan Hovold <johan+linaro@...nel.org>
> ---

Tested-by: Richard Acayan <mailingradian@...il.com>

On a Pixel 3a, plugging in a USB cable doesn't wake up the device
(presumably because there is no wakeup-source property) but this gets
USB working again on linux-next.