From mboxrd@z Thu Jan 1 00:00:00 1970 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 1D80C23AB9D; Sat, 14 Feb 2026 12:29:46 +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=1771072187; cv=none; b=UZ1U6EBke9ON4A6fPeaYrXR1mAVsTyJW6daFi/k05D8npBjLgaOaM6MYVLjLWBFR+2GmBfxCothc6az8z1TTQJk0m/xZlKWz3wA2Sq2pQD9YIbz8Hb7mIAOrb/Ft/EmfccpOa/BxgCzT+3/KJGtD8CInWCIrAns74rI105AwSXI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771072187; c=relaxed/simple; bh=R/+dzl78ImcyJC3ajMsl4sx1pTb167EmQ3u/ZqNDDqo=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=pMzYWp49aBptKXPORUUhGjFMmtMPNUVsfWgWHjUkSPTj7PLFgGXYwlrFOoC0LcNCSgy0JRrfx+uwn0OKW42/JGY/M0V1b5ZyLaOC3rMlQgZJRZFUfCJUxRGroNIl1t6k7vGG4KMLB6on3Mi9//n+HNZD1qdOojuIlVq3beWKH1c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=TOCosvLO; 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="TOCosvLO" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 39AD0C19424; Sat, 14 Feb 2026 12:29:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1771072186; bh=R/+dzl78ImcyJC3ajMsl4sx1pTb167EmQ3u/ZqNDDqo=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=TOCosvLOUkpUvSy3Cd6K0bENEMRdr8eqgsnwRfG++apQa4xCbrOYaxOAEQOkmnegl hiFU6jdGKrk1m1yS2mcaN1XFCPVRGZ4ni4B+b2ORa/KNuV3XL0AlnNPoeDTVSiBJMD xhC9kSInq2I+Cf7g6LYE4386PIJKpvGgYsR6FKMc35dFzcVQtN2VaqyjMXUn6nrdTN 5VAIrnz7m3DwhTLZygeaSRMGI4UAzTb2PCBgbtVkADLgr5RpttEmrNzHSziWEU+ZTQ OsGXWcvXXWCqS67f5OSWyG0n2oNqrlZ/LswPcYlrsqVTduHFEsm7faDMxmLGHrcd+G XeMynLklz0U2w== From: Yixun Lan Date: Sat, 14 Feb 2026 20:29:15 +0800 Subject: [PATCH v2 2/3] phy: k1-usb: add disconnect function support Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260214-11-k3-usb2-phy-v2-2-6ed31e031ab4@kernel.org> References: <20260214-11-k3-usb2-phy-v2-0-6ed31e031ab4@kernel.org> In-Reply-To: <20260214-11-k3-usb2-phy-v2-0-6ed31e031ab4@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=1552; i=dlan@kernel.org; h=from:subject:message-id; bh=R/+dzl78ImcyJC3ajMsl4sx1pTb167EmQ3u/ZqNDDqo=; b=owEB6QIW/ZANAwAKATGq6kdZTbvtAcsmYgBpkGqncnS5ukAYLLDhRo+37cDaebjFw+ClkAS/U +HXtIFVj+OJAq8EAAEKAJkWIQS1urjJwxtxFWcCI9wxqupHWU277QUCaZBqpxsUgAAAAAAEAA5t YW51MiwyLjUrMS4xMSwyLDJfFIAAAAAALgAoaXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5 maWZ0aGhvcnNlbWFuLm5ldEI1QkFCOEM5QzMxQjcxMTU2NzAyMjNEQzMxQUFFQTQ3NTk0REJCRU QACgkQMarqR1lNu+2LYw/9GmtDDMqAa3Y1Jed10EBIq4pzQY4v9WhRDJ3j+Ip7ZrWx+RSyemVLO sk/PefMncMZU2B5mUQ4JVWzwG3u2RruugSo0H5IYBWz44316Z7zXz8m2S/v1hCu4tTIAIZ3mk+h bspF9ZZeuXmWgeWabUcFouHZe7FVd3pDCbyyuwtsVAy9elAtrPGHy5t5E/8STNa1VEQ4WXeDIZ9 HJqUHqvFqrjtB4hrWof1wgmG0q5UW5v2wMdthSkt3XYN8zxkGC81rKCF6KiHGeFhB4HLQLTObz9 e6QjNG8Kers/pIbWA1JXZ1y0bZYyO5CE1QTrCeavUwrhdEBOtwuRmGtByQbZ5Wtyu/KgN2WEzSJ jT8amA6uDy8BY86D6cJ1pGU1UxuTcKTvGDFs6kRpAEyFMMU2uyBFpT9dHP23iW5aLKrvuytRFLq pn06wxWNEDVeTdlwBIdnhRkpLv5ZMCjr7+5daUC2eniz3Ebz4VH/kiq7D7vMz4/YpdFp51pWK/y 7UvOPWJjUtYIR/78n8L6zs/TeOt1ht+q12qfrXn/cjV7cegrJynZkSj0bJtMWtW93p+v3CBmiAF aeZoVG67e8EebdjXKBc/q8GGrM/jCj6a8LYsJeqRm5+Cw9FgQyWJOBX1yOcKk2MAiJt17iLN6x9 c8eGwaJWOfmMQfdlwsQOycPHEN0Mn0= 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. Fixes: fe4bc1a08638 ("phy: spacemit: support K1 USB2.0 PHY controller") 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 */ +#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; } +static int spacemit_usb2phy_disconnect(struct phy *phy, int port) +{ + struct spacemit_usb2phy *sphy = 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 = { .init = spacemit_usb2phy_init, .exit = spacemit_usb2phy_exit, + .disconnect = spacemit_usb2phy_disconnect, .owner = THIS_MODULE, }; -- 2.52.0