From nobody Thu Apr 2 18:53:51 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1DB5B21ABC1; Thu, 12 Feb 2026 01:39:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770860357; cv=none; b=lSFYl9+SM98JTy2boUG+QWrWP90h+wkkws87DR4ggoiOOOKEzS0Q4TG28yK0dQWRi9qqPPUq6WnSg6DD/38rZnLWAjI6SDjWICJW66CvLXhxT955clQgBfSTZ6mXOwtLLK5VCy39gElvZYO7+WBgCKdpHQVu/4NXlYMPz0jPF6Y= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770860357; c=relaxed/simple; bh=VeholSffT/UMyhEACirshDrbCKDpTWyBnxuxVdBUr/w=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=N5g+1BYT7PgGgBuPkAzqpOBOuIocs2tlAuzmKa72vhOWSHYtaC7BZwloQkzeAnuPno6Cu3YtHn38W0qaYl5nmPd2LMBHHgfWOVlzOoO29Aocu3lMUJLjPofKGCvEL4rb5QSyUIHqOGw9ZgAjoDushvql6uRABlUxH05rs+BDyiY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KJFMkekb; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="KJFMkekb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D2E57C16AAE; Thu, 12 Feb 2026 01:39:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1770860357; bh=VeholSffT/UMyhEACirshDrbCKDpTWyBnxuxVdBUr/w=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=KJFMkekb/gpw+iVZ4zFpjfyIj40fK9OJOeNklaJeprIum6E+l7NCmbQDu/YGY1YoM oJR2er3OHh82lGnV47jvk+qz+U+z3/rQGpDV03YFemgMkj9fqFu97Y/2EHBRbqC6Fn 3j5gri5h6JNrkXJ50wP9mtCPUFVp5vCPDgYpdeN+B2mUzifKctRr0l/MYpEeWt3DGI z2CUJFhDMGYSOIG5r9SirK+lZyIN1Fd3YKF8BqDVG7yOfQCaFzRhrtnR2CpaRizRjY nVO1KAECeXC5NJ50bq5hRiRSEhQQrg618Z8BPLMBXOzswLbEx8yol+LhZmrNMoJUgp 3qXgDhndD8eIg== From: Yixun Lan Date: Thu, 12 Feb 2026 09:38:55 +0800 Subject: [PATCH 2/3] phy: k1-usb: add disconnect function support Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260212-11-k3-usb2-phy-v1-2-43578592405d@kernel.org> References: <20260212-11-k3-usb2-phy-v1-0-43578592405d@kernel.org> In-Reply-To: <20260212-11-k3-usb2-phy-v1-0-43578592405d@kernel.org> To: Vinod Koul , Neil Armstrong , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Ze Huang Cc: Junzhong Pan , linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev, linux-kernel@vger.kernel.org, Yixun Lan X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1479; i=dlan@kernel.org; h=from:subject:message-id; bh=VeholSffT/UMyhEACirshDrbCKDpTWyBnxuxVdBUr/w=; b=owEB6QIW/ZANAwAKATGq6kdZTbvtAcsmYgBpjS83l7LIBz5j7b0i1Mn1HREi55NVap0spyWjR qFR12iKDH6JAq8EAAEKAJkWIQS1urjJwxtxFWcCI9wxqupHWU277QUCaY0vNxsUgAAAAAAEAA5t YW51MiwyLjUrMS4xMSwyLDJfFIAAAAAALgAoaXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5 maWZ0aGhvcnNlbWFuLm5ldEI1QkFCOEM5QzMxQjcxMTU2NzAyMjNEQzMxQUFFQTQ3NTk0REJCRU QACgkQMarqR1lNu+0acA/8DiNihXAyofvNdMrH+2sgLHZcWc0P4+l2zGse7N1DqHhzTMCJQmQz8 AsQkj/JF96iZ6LsB+ruMJLFuiKyJ7cDoHpsAe2nWMDSp9g2C59c86xu3RbJSimk+vCt7/2gkZLv XmloMWH+dUqnKitXxCt+mGSLdtNe/9A4F1RBT3i4TBmbyH5YcPBk8aFCE99HZRA2tUHZxY308iV 2Ztwjtveq68uF518L3P0IYO36QszZEq+zDl5eriaLTNfQLqcBu9whDbBUxKxBjF+xnn1Rk2t8pZ Xcd6/QdmDvRJrt/2xaYGoDHvHMAS0AA7K3fCeRoEhYoLguTc0DtEtnXCLt6E23Hu9SGXbE83CgP SdEfj9gfAdATba4vOEg1PXxOMl4mxVBE69E0A4F8OrMVPnOGgv55LAgeaWykGe//2qybaEumu/K YhbeZLPrjKs2p+LLQTvL6WbDaYiFK5ktkD8Kg1cFG+RONxfUNYt/j8zJ2LBx1+ixJtktgNX5X9O 6n26mmRrxc6kNV1OTAL+zZ+WVZsZa7pRRescgml8W6RStIyowZDAQGav8iSHJQFdZmRHkrkmM+U eI7+WDAZ11uwMq0RQ+bSaOKRc0LNq5ds/qYOs+8F+iHXkbWxHnlS/8sElOZzTlKelvczzZbtbHO TKIPHrl9L1ttmZ5KFDwTITyg+Uuz68= X-Developer-Key: i=dlan@kernel.org; a=openpgp; fpr=50B03A1A5CBCD33576EF8CD7920C0DBCAABEFD55 A disconnect status BIT of USB2 PHY need to be cleared, otherwise it will fail to work properly during next connection when devices connect to roothub directly. Signed-off-by: Yixun Lan --- drivers/phy/spacemit/phy-k1-usb2.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/phy/spacemit/phy-k1-usb2.c b/drivers/phy/spacemit/phy-= k1-usb2.c index 342061380012..959bf79c7a72 100644 --- a/drivers/phy/spacemit/phy-k1-usb2.c +++ b/drivers/phy/spacemit/phy-k1-usb2.c @@ -48,6 +48,9 @@ #define PHY_CLK_HSTXP_EN BIT(3) /* clock hstxp enable */ #define PHY_HSTXP_MODE BIT(4) /* 0: force en_txp to be 1; 1: no force = */ =20 +#define PHY_K1_HS_HOST_DISC 0x40 +#define PHY_K1_HS_HOST_DISC_CLR BIT(0) + #define PHY_PLL_DIV_CFG 0x98 #define PHY_FDIV_FRACT_8_15 GENMASK(7, 0) #define PHY_FDIV_FRACT_16_19 GENMASK(11, 8) @@ -142,9 +145,20 @@ static int spacemit_usb2phy_exit(struct phy *phy) return 0; } =20 +static int spacemit_usb2phy_disconnect(struct phy *phy, int port) +{ + struct spacemit_usb2phy *sphy =3D phy_get_drvdata(phy); + + regmap_update_bits(sphy->regmap_base, PHY_K1_HS_HOST_DISC, + PHY_K1_HS_HOST_DISC_CLR, PHY_K1_HS_HOST_DISC_CLR); + + return 0; +} + static const struct phy_ops spacemit_usb2phy_ops =3D { .init =3D spacemit_usb2phy_init, .exit =3D spacemit_usb2phy_exit, + .disconnect =3D spacemit_usb2phy_disconnect, .owner =3D THIS_MODULE, }; =20 --=20 2.52.0