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dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="GptAQ2xB" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 52B1B1F000E9; Thu, 9 Jul 2026 19:35:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1783625717; bh=KdPym2xiaUT1pfCT2Mz1W1YaeXtHAZ3K+dbcH4NtUb4=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=GptAQ2xB6Puzk2rTRtWlyI5AKFmcr0kfBdQLMTJ3tg/31V5PNRPQfuco7q8GR8oNc LnR6HR5O2S4NEgRBnut/SzsTtCZI6Mv31UFFMRdEdDkbg5z/h8lLs0fRc+CERqYDo/ dQqHrGtlEeJB3DasD6XaVGis6b8abnuG+MiQBKP15G2XnJ5mlXPT5n64oss51a3c54 kw/kyeaayhDQBLWr2F3i1ihH2dKHc2hf8rsh9wSh8L0nP8oXJr5bpLECfDtJvmftMI X17ea3IKjVP5m6dRN8004kxeJxLYDUlLhMS1XCP7KtUVlfrQQk+E9fXMifalRumDPJ K9F/6bxhbx0Gg== From: sashiko-bot@kernel.org Subject: Re: [PATCH v11 28/36] phy: rockchip: usbdp: Only enable USB3 when not in high-speed mode Reply-To: sashiko-reviews@lists.linux.dev To: "Sebastian Reichel" Cc: linux-phy@lists.infradead.org, vkoul@kernel.org, conor+dt@kernel.org, devicetree@vger.kernel.org, neil.armstrong@linaro.org, olteanv@gmail.com, robh@kernel.org In-Reply-To: <20260709-rockchip-usbdp-cleanup-v11-28-a149ac60f76c@collabora.com> References: <20260709-rockchip-usbdp-cleanup-v11-0-a149ac60f76c@collabora.com> <20260709-rockchip-usbdp-cleanup-v11-28-a149ac60f76c@collabora.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Thu, 09 Jul 2026 19:35:16 +0000 Message-Id: <20260709193517.52B1B1F000E9@smtp.kernel.org> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Thank you for your contribution! Sashiko AI review found 1 potential issue(= s) to consider: Pre-existing issues: - [High] The USB3 port is unconditionally disabled during PHY re-initializa= tion but never re-enabled, permanently breaking USB3 functionality after a = mode change. -- --- Patch [28]: [PATCH v11 28/36] phy: rockchip: usbdp: Only enable USB3 wh= en not in high-speed mode --- commit f42d06c6d124fe98eab8964760884de8f170d304 Author: Sebastian Reichel phy: rockchip: usbdp: Only enable USB3 when not in high-speed mode Ensure that USB3 mode is not accidently enabled during PHY re-init for systems that are configured as high-speed only via DT. Closes: https://sashiko.dev/#/message/20260626212424.C215E1F000E9%40smtp.ke= rnel.org > diff --git a/drivers/phy/rockchip/phy-rockchip-usbdp.c b/drivers/phy/rock= chip/phy-rockchip-usbdp.c > --- a/drivers/phy/rockchip/phy-rockchip-usbdp.c > +++ b/drivers/phy/rockchip/phy-rockchip-usbdp.c > @@ -1009,7 +1009,7 @@ static int rk_udphy_power_on(struct rk_udphy *udphy= , u8 mode) > if (ret) > return ret; > =20 > - if (udphy->mode & UDPHY_MODE_USB) > + if (!udphy->hs && udphy->mode & UDPHY_MODE_USB) > rk_udphy_u3_port_disable(udphy, false); > udphy->phy_needs_reinit =3D false; > } else if (udphy->phy_needs_reinit) { > rk_udphy_u3_port_disable(udphy, true); > udelay(10); > =20 > ret =3D rk_udphy_init(udphy); > if (ret) > return ret; > udphy->phy_needs_reinit =3D false; > } [Severity: High] This is a pre-existing issue, but does this missing re-enablement permanent= ly break USB3 functionality after a mode change? If the PHY is already active and a mode change occurs (such as plugging in a DP monitor or a Type-C cable flip), udphy->phy_needs_reinit is set to true. When rk_udphy_power_on() is subsequently called, the U3 port is disabled in this branch to avoid xHCI SErrors, but there is no corresponding call to rk_udphy_u3_port_disable(udphy, false) to restore it after rk_udphy_init() completes. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20260709-rockchip-u= sbdp-cleanup-v11-0-a149ac60f76c@collabora.com?part=3D28