From nobody Thu Apr 2 17:10:30 2026 Received: from layka.disroot.org (layka.disroot.org [178.21.23.139]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E6D3B345741; Fri, 27 Mar 2026 16:07:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.21.23.139 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774627652; cv=none; b=LJ1413LWIArp8rbpW5umG1MEbAa4LqL1o1lXh1SMMP3w2NOvLO/hBzQD8iYPJ91RdR4w6l92S03EtVkILp0OMd+H3jTBY/dHlZvzX9sN/hLC86AMr03pxligEAwdtGUdAuGXbJ2GZcUbcAkXkAPFKwSMcGl2s2uBaAy7esIRji0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774627652; c=relaxed/simple; bh=A2n8k6aIgmIJ4ucRQWwBcogmliaMS8yEWnuf1xcyKuE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ShVwhhwaXiQtIKNk/GdLwp6KW1gatJLdhoHaBk7O9LCUR/2t7DhiZgPaLTke2NyCWowYSOTsOUNkCUxUtSAIpYc9eNPW5LM7cPdlRnooevcv3aQVbj3BgbLl8qE5gZBdpZX2zIQrZbWuemu9gzqFsMFU+xf449LVAG5OVquTvPo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=disroot.org; spf=pass smtp.mailfrom=disroot.org; dkim=pass (2048-bit key) header.d=disroot.org header.i=@disroot.org header.b=i4MqKOBL; arc=none smtp.client-ip=178.21.23.139 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=disroot.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=disroot.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=disroot.org header.i=@disroot.org header.b="i4MqKOBL" Received: from [127.0.0.1] (localhost [127.0.0.1]) by disroot.org (Postfix) with ESMTP id 8E8CD2722C; Fri, 27 Mar 2026 17:07:29 +0100 (CET) X-Virus-Scanned: SPAM Filter at disroot.org Received: from layka.disroot.org ([127.0.0.1]) by localhost (disroot.org [127.0.0.1]) (amavis, port 10024) with ESMTP id iwLKmA2FuTWB; Fri, 27 Mar 2026 17:07:29 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=disroot.org; s=mail; t=1774627646; bh=A2n8k6aIgmIJ4ucRQWwBcogmliaMS8yEWnuf1xcyKuE=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=i4MqKOBL5+t1RAJCKLYADj3a5vBluzc9Ww5cQ/qksWGl+hoWSSqCOkJcejMhheSDr PSlnogzxmLDPawJywtiSQj085H9ZLF6SayH4bfo2p4zxeAK6rQlv9gn+M2fyK9D796 pQLrOsyLXfsJJAJOOOsa40gTaNzAJLJ2TihTUxE7cNCn9LU2VTn+3og+mABKlyRMM5 iiZFyRDPs3NkbOYoFd8XpWAlKYlPYndzYuOSiqVKel8Yylv3cInVWW3C2J6ZgQsG6K 4jggexIc02WFLQSRF18Y0aQnKIrguP6NyegSvpmWagqirrhQw4jwp8WYZfcbhzf2Dv p1EIWVnvuWc0A== From: Rustam Adilov To: Vinod Koul , Neil Armstrong , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Stanley Chang , linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Rustam Adilov , Michael Zavertkin Subject: [PATCH v2 4/6] phy: realtek: usb2: introduce reset controller struct Date: Fri, 27 Mar 2026 21:06:36 +0500 Message-ID: <20260327160638.15134-5-adilov@disroot.org> In-Reply-To: <20260327160638.15134-1-adilov@disroot.org> References: <20260327160638.15134-1-adilov@disroot.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" In RTL9607C, there is so called "IP Enable Controller" which resemble reset controller with reset lines and is used for various things like USB, PCIE, GMAC and such. Introduce the reset_control struct to this driver to handle deasserting usb2 phy reset line. Make use of the function devm_reset_control_array_get_optional_exclusive() function to get the reset controller and since existing RTD SoCs don't specify the resets we can have a cleaner code. Co-developed-by: Michael Zavertkin Signed-off-by: Michael Zavertkin Signed-off-by: Rustam Adilov --- drivers/phy/realtek/phy-rtk-usb2.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/phy/realtek/phy-rtk-usb2.c b/drivers/phy/realtek/phy-r= tk-usb2.c index e65b8525b88b..070cba1e0e0a 100644 --- a/drivers/phy/realtek/phy-rtk-usb2.c +++ b/drivers/phy/realtek/phy-rtk-usb2.c @@ -17,6 +17,7 @@ #include #include #include +#include #include =20 /* GUSB2PHYACCn register */ @@ -130,6 +131,7 @@ struct rtk_phy { struct phy_cfg *phy_cfg; int num_phy; struct phy_parameter *phy_parameter; + struct reset_control *phy_rst; =20 struct dentry *debug_dir; }; @@ -602,6 +604,10 @@ static int do_rtk_phy_init(struct rtk_phy *rtk_phy, in= t index) phy_parameter =3D &((struct phy_parameter *)rtk_phy->phy_parameter)[index= ]; phy_reg =3D &phy_parameter->phy_reg; =20 + reset_control_deassert(rtk_phy->phy_rst); + + mdelay(5); + if (phy_cfg->use_default_parameter) { dev_dbg(rtk_phy->dev, "%s phy#%d use default parameter\n", __func__, index); @@ -1069,6 +1075,12 @@ static int rtk_usb2phy_probe(struct platform_device = *pdev) =20 rtk_phy->num_phy =3D phy_cfg->num_phy; =20 + rtk_phy->phy_rst =3D devm_reset_control_array_get_optional_exclusive(dev); + if (IS_ERR(rtk_phy->phy_rst)) { + dev_err(dev, "usb2 phy resets are not working\n"); + return PTR_ERR(rtk_phy->phy_rst); + } + ret =3D parse_phy_data(rtk_phy); if (ret) goto err; --=20 2.53.0