From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8409ECD342C for ; Wed, 6 May 2026 14:46:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:Reply-To:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:References:Cc:To:Subject: From:MIME-Version:Date:Message-ID:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=X5F6xaPekTWCniL2TGBb8cGZvLYFxDmiYlPOcFcH2hg=; b=O+PuYB2GS+21RY6F4TKQeynyqB QD5uh7z4X5/H2CUlxpDxSM7iGlxFz2ts3OGa6LvF9saKU2KvfdcfmLkCPOijUea/L127UjnJE+3Hi nJx08ssJvsrrdNmxVKNGizZX8kBYDqAUmyGJcWNHc+i6qIkWOkI6D4rgerf4/jpi48oDgyIxpXUSz qC63MJwIM1D9I7qe3b+FPgLDX9oJbrKTXb85G1VOZZMfYMreL/U27SU5jC2U6Wmm8koJ9dV5zCSN4 yawUEpVUmBqQanuGR7JPaJ76LHG2WEGnTEUeAB2k24cXJOKE1vRy7XQ+QwMkKnzZV2Mfrmj8TAf4Z USR0NXcw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wKdVe-0000000199c-42lS; Wed, 06 May 2026 14:45:59 +0000 Received: from mail-wm1-x335.google.com ([2a00:1450:4864:20::335]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wKdVd-0000000196V-1wO1 for linux-rockchip@lists.infradead.org; Wed, 06 May 2026 14:45:57 +0000 Received: by mail-wm1-x335.google.com with SMTP id 5b1f17b1804b1-488ad135063so62068175e9.0 for ; Wed, 06 May 2026 07:45:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1778078756; x=1778683556; darn=lists.infradead.org; h=content-transfer-encoding:in-reply-to:organization:autocrypt :content-language:references:cc:to:subject:reply-to:from:user-agent :mime-version:date:message-id:from:to:cc:subject:date:message-id :reply-to; bh=/HtqF6jrqaeSm9DrDqkDcfltRHLuI2l02ndlgOFlBxs=; b=GWGHi1lCtrnsl5P+CjujevuCBX4HaHcxlRe+WH2pqYPxo0jXtypEzOUA0SqCvtTSqB NTVNeON1l/C4kC/o3+O8pFSoU8Pwf2/dFiDirELg5bst9C73xo/NDl6LBXSq4d7kcJV5 CeHb+fAB9m5h3EBlcte6RhVZXfAiRzFMGpBXYNxZ+mvUqic3tm/d4B4ii8HZQns0iKd1 Vna/C89+iNUfhRACUn3bwfho+31ImsV3DQvQjaMRiAgl9KOEqiz8Cifi/z+eR402WV2P P3fu71AoFpjKzpKypQBbq26bipgmELtLGo92dPgeGkCDFE+lE7n1bac+qcvuAWVTeuZh Recw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1778078756; x=1778683556; h=content-transfer-encoding:in-reply-to:organization:autocrypt :content-language:references:cc:to:subject:reply-to:from:user-agent :mime-version:date:message-id:x-gm-gg:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=/HtqF6jrqaeSm9DrDqkDcfltRHLuI2l02ndlgOFlBxs=; b=XH8KXW7ypOdxhIPody5gGOfrSe8gZ4iR/ONIuZvBsFU4i2ErfAOabp2a1Kcgv4m0Ot E3nZsPIz+P0HPDUu2lsGENkbAkaBEkwLCopGyvccAsDMPEfvYVTeL2JOl+sxivXlpCyX Lxnk6z0VEDFEJvrdhE44lOVf+yp/ax7QRVGXG2iMDCCc9tnEo2/SjzVWG2wddN9iGZjy mB/PUKPw7VczUQAE0ZaClHtZF6Cbo+dZV1M1Ita8TAy64L6MlIR4alPPJ8rjh9a4CNMp 9kNEscnUWuMni3Zgsc5yP0fN7LISVdPZ0GzSzpc1TuDb1K976ndGic5s3GC9xK5Ol+Sm 6kQA== X-Forwarded-Encrypted: i=1; AFNElJ9YM3vSHa4w17geZ+y1lu+Q4vFec6A7/2CxNBWi3pQ6vKdk2argprKRwXLVqSNtvohCF5zK4km9ofxBB80jJQ==@lists.infradead.org X-Gm-Message-State: AOJu0YxkN2o4G9UrSNyPBLexTdYwJy5+YH/vCXfPPwJqJJjObHXbHMOR 3yW6kfr5Hm6T2gcZxlEhSqIU+Pu3rP91SCkE1TeE3JqYCmZR9cPQ1JbTvNUWQDHauvo= X-Gm-Gg: AeBDiesrcSq/agWBhWxRLo8GMbF8DmIMOBJMpkaKsbvbXm/4pygJwKhcYqUgZsibGUt unFpiBJCbsK7l90Ro5DfTk30zECQ6VQ0sI8X7eBeAuAR62lSF4LIyeCujcIOf1nFu7JtJP+mdKZ pOTEQEytT21isxCR0iot2pqIqAQOvk/9e/SXmLgt+jXqV0pTe3G7uSn9hhPCWPpslcywSYgoObm NVe8uz5Cbgbl76fZ2QwJ+S3FT62OsrdWpi0ow5rbOBJ88w+tUld9p0ewOQsr6nc7BSjEsyAAn2H 9Qs9CmksD66QJMUaRB5QWuFTc47zyeFyhmkvSCB09jxnd3EPORiDsTjaVeu8s8CCYwDM6ZGcICa VOVlCd7/+NFCVKMWEO7mvDVFjMqUqkLyBlD6xsFHFZ8h4siUZTETxg5/uZqGV+uxzrfL6iH2D5a bCti4CR2djFgcv0cAUFfd6M4n5knmTWrpHjh89PzOoMvdkBbnt7f4RGXApf7xI+vl6wOK2fX+xU ejC+hNFZqDuasCW+Q== X-Received: by 2002:a05:600c:3f18:b0:487:2671:fb8f with SMTP id 5b1f17b1804b1-48e51e19668mr63687185e9.8.1778078755449; Wed, 06 May 2026 07:45:55 -0700 (PDT) Received: from ?IPV6:2a01:e0a:106d:1080:5798:67fd:c866:b378? ([2a01:e0a:106d:1080:5798:67fd:c866:b378]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48e53147bc2sm30042045e9.6.2026.05.06.07.45.54 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 06 May 2026 07:45:54 -0700 (PDT) Message-ID: <38f9106e-5cb7-4446-96a2-ea5ea3b358b4@linaro.org> Date: Wed, 6 May 2026 16:45:54 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: neil.armstrong@linaro.org Subject: Re: [PATCH v2 5/5] phy: rockchip: inno-usb2: Add support for RK3528 To: Heiko Stuebner , vkoul@kernel.org Cc: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, jonas@kwiboo.se, Jianwei Zheng References: <20260505170410.3265305-1-heiko@sntech.de> <20260505170410.3265305-6-heiko@sntech.de> Content-Language: en-US, fr Autocrypt: addr=neil.armstrong@linaro.org; keydata= xsBNBE1ZBs8BCAD78xVLsXPwV/2qQx2FaO/7mhWL0Qodw8UcQJnkrWmgTFRobtTWxuRx8WWP GTjuhvbleoQ5Cxjr+v+1ARGCH46MxFP5DwauzPekwJUD5QKZlaw/bURTLmS2id5wWi3lqVH4 BVF2WzvGyyeV1o4RTCYDnZ9VLLylJ9bneEaIs/7cjCEbipGGFlfIML3sfqnIvMAxIMZrvcl9 qPV2k+KQ7q+aXavU5W+yLNn7QtXUB530Zlk/d2ETgzQ5FLYYnUDAaRl+8JUTjc0CNOTpCeik 80TZcE6f8M76Xa6yU8VcNko94Ck7iB4vj70q76P/J7kt98hklrr85/3NU3oti3nrIHmHABEB AAHNKk5laWwgQXJtc3Ryb25nIDxuZWlsLmFybXN0cm9uZ0BsaW5hcm8ub3JnPsLAkQQTAQoA OwIbIwULCQgHAwUVCgkICwUWAgMBAAIeAQIXgBYhBInsPQWERiF0UPIoSBaat7Gkz/iuBQJk Q5wSAhkBAAoJEBaat7Gkz/iuyhMIANiD94qDtUTJRfEW6GwXmtKWwl/mvqQtaTtZID2dos04 YqBbshiJbejgVJjy+HODcNUIKBB3PSLaln4ltdsV73SBcwUNdzebfKspAQunCM22Mn6FBIxQ GizsMLcP/0FX4en9NaKGfK6ZdKK6kN1GR9YffMJd2P08EO8mHowmSRe/ExAODhAs9W7XXExw UNCY4pVJyRPpEhv373vvff60bHxc1k/FF9WaPscMt7hlkbFLUs85kHtQAmr8pV5Hy9ezsSRa GzJmiVclkPc2BY592IGBXRDQ38urXeM4nfhhvqA50b/nAEXc6FzqgXqDkEIwR66/Gbp0t3+r yQzpKRyQif3OwE0ETVkGzwEIALyKDN/OGURaHBVzwjgYq+ZtifvekdrSNl8TIDH8g1xicBYp QTbPn6bbSZbdvfeQPNCcD4/EhXZuhQXMcoJsQQQnO4vwVULmPGgtGf8PVc7dxKOeta+qUh6+ SRh3vIcAUFHDT3f/Zdspz+e2E0hPV2hiSvICLk11qO6cyJE13zeNFoeY3ggrKY+IzbFomIZY 4yG6xI99NIPEVE9lNBXBKIlewIyVlkOaYvJWSV+p5gdJXOvScNN1epm5YHmf9aE2ZjnqZGoM Mtsyw18YoX9BqMFInxqYQQ3j/HpVgTSvmo5ea5qQDDUaCsaTf8UeDcwYOtgI8iL4oHcsGtUX oUk33HEAEQEAAcLAXwQYAQIACQUCTVkGzwIbDAAKCRAWmrexpM/4rrXiB/sGbkQ6itMrAIfn M7IbRuiSZS1unlySUVYu3SD6YBYnNi3G5EpbwfBNuT3H8//rVvtOFK4OD8cRYkxXRQmTvqa3 3eDIHu/zr1HMKErm+2SD6PO9umRef8V82o2oaCLvf4WeIssFjwB0b6a12opuRP7yo3E3gTCS KmbUuLv1CtxKQF+fUV1cVaTPMyT25Od+RC1K+iOR0F54oUJvJeq7fUzbn/KdlhA8XPGzwGRy 4zcsPWvwnXgfe5tk680fEKZVwOZKIEuJC3v+/yZpQzDvGYJvbyix0lHnrCzq43WefRHI5XTT QbM0WUIBIcGmq38+OgUsMYu4NzLu7uZFAcmp6h8g Organization: Linaro In-Reply-To: <20260505170410.3265305-6-heiko@sntech.de> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260506_074557_546300_1A3C1FAC X-CRM114-Status: GOOD ( 23.01 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Neil Armstrong Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org On 5/5/26 19:04, Heiko Stuebner wrote: > From: Jianwei Zheng > > The RK3528 has a single USB2PHY with a otg and host port. > > Add support for the RK3528 variant of USB2PHY. > > PHY tuning for RK3528: > > - Turn off differential receiver in suspend mode to save power > consumption. > > - Set HS eye-height to 400mV instead of default 450mV. > > - Choose the Tx fs/ls data as linestate from TX driver for otg port > which uses dwc3 controller to improve fs/ls devices compatibility with > long cables. > > Undocumented magic-values are based on the linux-stan-6.1-rkr5 tag of > the vendor-kernel. > > Signed-off-by: Jianwei Zheng > Signed-off-by: Jonas Karlman > Signed-off-by: Heiko Stuebner > --- > drivers/phy/rockchip/phy-rockchip-inno-usb2.c | 84 +++++++++++++++++++ > 1 file changed, 84 insertions(+) > > diff --git a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c > index d8879fcd4291..133cfd6624e8 100644 > --- a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c > +++ b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c > @@ -1511,6 +1511,38 @@ static int rk3128_usb2phy_tuning(struct rockchip_usb2phy *rphy) > BIT(2) << BIT_WRITEABLE_SHIFT | 0); > } > > +static int rk3528_usb2phy_tuning(struct rockchip_usb2phy *rphy) > +{ > + int ret; > + > + /* Turn off otg port differential receiver in suspend mode */ > + ret = regmap_write(rphy->phy_base, 0x30, BIT(18) | 0x0000); > + if (ret) > + return ret; > + > + /* Turn off host port differential receiver in suspend mode */ > + ret = regmap_write(rphy->phy_base, 0x430, BIT(18) | 0x0000); > + if (ret) > + return ret; > + > + /* Set otg port HS eye height to 400mv (default is 450mv) */ > + ret = regmap_write(rphy->phy_base, 0x30, GENMASK(22, 20) | 0x0000); > + if (ret) > + return ret; > + > + /* Set host port HS eye height to 400mv (default is 450mv) */ > + ret = regmap_write(rphy->phy_base, 0x430, GENMASK(22, 20) | 0x0000); > + if (ret) > + return ret; > + > + /* Choose the Tx fs/ls data as linestate from TX driver for otg port */ > + ret = regmap_write(rphy->phy_base, 0x94, GENMASK(22, 19) | 0x0018); > + if (ret) > + return ret; > + > + return 0; > +} > + > static int rk3576_usb2phy_tuning(struct rockchip_usb2phy *rphy) > { > int ret; > @@ -1924,6 +1956,57 @@ static const struct rockchip_usb2phy_cfg rk3399_phy_cfgs[] = { > { /* sentinel */ } > }; > > +static const struct rockchip_usb2phy_cfg rk3528_phy_cfgs[] = { > + { > + .reg = 0xffdf0000, > + .num_ports = 2, > + .phy_tuning = rk3528_usb2phy_tuning, > + .clkout_ctl_phy = { 0x041c, 7, 2, 0, 0x27 }, > + .port_cfgs = { > + [USB2PHY_PORT_OTG] = { > + .phy_sus = { 0x004c, 8, 0, 0, 0x1d1 }, > + .bvalid_det_en = { 0x0074, 3, 2, 0, 3 }, > + .bvalid_det_st = { 0x0078, 3, 2, 0, 3 }, > + .bvalid_det_clr = { 0x007c, 3, 2, 0, 3 }, > + .idfall_det_en = { 0x0074, 5, 5, 0, 1 }, > + .idfall_det_st = { 0x0078, 5, 5, 0, 1 }, > + .idfall_det_clr = { 0x007c, 5, 5, 0, 1 }, > + .idrise_det_en = { 0x0074, 4, 4, 0, 1 }, > + .idrise_det_st = { 0x0078, 4, 4, 0, 1 }, > + .idrise_det_clr = { 0x007c, 4, 4, 0, 1 }, > + .ls_det_en = { 0x0074, 0, 0, 0, 1 }, > + .ls_det_st = { 0x0078, 0, 0, 0, 1 }, > + .ls_det_clr = { 0x007c, 0, 0, 0, 1 }, > + .utmi_avalid = { 0x006c, 1, 1, 0, 1 }, > + .utmi_bvalid = { 0x006c, 0, 0, 0, 1 }, > + .utmi_id = { 0x006c, 6, 6, 0, 1 }, > + .utmi_ls = { 0x006c, 5, 4, 0, 1 }, > + }, > + [USB2PHY_PORT_HOST] = { > + .phy_sus = { 0x005c, 8, 0, 0x1d2, 0x1d1 }, > + .ls_det_en = { 0x0090, 0, 0, 0, 1 }, > + .ls_det_st = { 0x0094, 0, 0, 0, 1 }, > + .ls_det_clr = { 0x0098, 0, 0, 0, 1 }, > + .utmi_ls = { 0x006c, 13, 12, 0, 1 }, > + .utmi_hstdet = { 0x006c, 15, 15, 0, 1 }, > + } > + }, > + .chg_det = { > + .opmode = { 0x004c, 3, 0, 5, 1 }, > + .cp_det = { 0x006c, 19, 19, 0, 1 }, > + .dcp_det = { 0x006c, 18, 18, 0, 1 }, > + .dp_det = { 0x006c, 20, 20, 0, 1 }, > + .idm_sink_en = { 0x0058, 1, 1, 0, 1 }, > + .idp_sink_en = { 0x0058, 0, 0, 0, 1 }, > + .idp_src_en = { 0x0058, 2, 2, 0, 1 }, > + .rdm_pdwn_en = { 0x0058, 3, 3, 0, 1 }, > + .vdm_src_en = { 0x0058, 5, 5, 0, 1 }, > + .vdp_src_en = { 0x0058, 4, 4, 0, 1 }, > + }, > + }, > + { /* sentinel */ } > +}; > + > static const struct rockchip_usb2phy_cfg rk3562_phy_cfgs[] = { > { > .reg = 0xff740000, > @@ -2291,6 +2374,7 @@ static const struct of_device_id rockchip_usb2phy_dt_match[] = { > { .compatible = "rockchip,rk3328-usb2phy", .data = &rk3328_phy_cfgs }, > { .compatible = "rockchip,rk3366-usb2phy", .data = &rk3366_phy_cfgs }, > { .compatible = "rockchip,rk3399-usb2phy", .data = &rk3399_phy_cfgs }, > + { .compatible = "rockchip,rk3528-usb2phy", .data = &rk3528_phy_cfgs }, > { .compatible = "rockchip,rk3562-usb2phy", .data = &rk3562_phy_cfgs }, > { .compatible = "rockchip,rk3568-usb2phy", .data = &rk3568_phy_cfgs }, > { .compatible = "rockchip,rk3576-usb2phy", .data = &rk3576_phy_cfgs }, Reviewed-by: Neil Armstrong Thanks, Neil _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip