From patchwork Wed Jun 12 15:07:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: joswang X-Patchwork-Id: 13695187 Received: from mail-pf1-f175.google.com (mail-pf1-f175.google.com [209.85.210.175]) (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 7541A18131B; Wed, 12 Jun 2024 15:07:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.175 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718204854; cv=none; b=S2PrExFGaeTE+p+AbMyS2kutFO/tsyB6EUzKynHDXI2c0Z8VqwgX06VZTBGvL8HZ3lf1ufgWLLFmKRAjemdHW1Bpsws5AeZTsDJyhCh0crvgSZNqANa6L+CkTwplBSSzIgX7whhLCvQxgJARfsVGJepcbYN3q4vs7MLOUZqy1uQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718204854; c=relaxed/simple; bh=AEdp41grZ7smqjvikNgkrPlZJz64+dxMSUEJtvA8Se0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=Jrc7GmSeZbXcKC/SZ7oioAHXIAYwBM1yruqjNClXtabRu6We9jMgtlmc4MPiJwjKOcix8LbNZ7wb8OeacinuLPb34ZhL9shwwMqeIqzF0eIX8Z6aqJ3QRSqmyE/S897QC2+3Lf9wMOqkkE24h2n9wKyHzI96sXg6jeQt63hxl0A= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=PfaolSLj; arc=none smtp.client-ip=209.85.210.175 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="PfaolSLj" Received: by mail-pf1-f175.google.com with SMTP id d2e1a72fcca58-705c7e2d31cso194408b3a.3; Wed, 12 Jun 2024 08:07:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1718204853; x=1718809653; darn=vger.kernel.org; h=references:in-reply-to:message-id:date:subject:cc:to:from:from:to :cc:subject:date:message-id:reply-to; bh=de53VCSP+1Fk6NTgs8BHySBUMjOfP3GoW+uQPcFGoBI=; b=PfaolSLjoi1XUQpj8Ka8DiB0tNqvpgyXm0J7e8k5ryQtQndAYX8pi30D0QEGtuD1Rn tJyv1Pfcuewxwj/9hm/4YWn55Bd0Fb1+6h1JbMlasA3dKzoag2dJ/RqdXBPnaPOMFK1S hUKdon4f7Am/ukT+8D/XWu5gSD6M9PpgMydvgJ5A7Q+2RIaAAr6S1/V0NW9jJcrsbQ2t ElOwicvM5hOHbi0B0AFHTHXceV2h/Xj04qXxkhHY+aDTepUN2HTjpeQOPoahoRioFnt6 qmHG2yux39qe4xOulawpKXg6SCJnjAyeYq+Bjdv1+7PE0G9p+Ej0Q4OepNheZ9B78J5u 2aPg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1718204853; x=1718809653; h=references:in-reply-to:message-id:date:subject:cc:to:from :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=de53VCSP+1Fk6NTgs8BHySBUMjOfP3GoW+uQPcFGoBI=; b=aUuUT6g5oUReuUZmryeO4CoIODzqvs+Q3lJsXW022I0mqY/tUGv6pq2u4oN8ok0ivY CccqOJ0zMq106zXy09QgCTGAZiTlywI0e1aB4ow233obLsJI/DmZ0zstabtUwfcvXNd7 3EKFTbhfYxxA4CTAxHzYY45EZVXydOu8xcR19BnR0lk2x/SxO8GN9fE3r1hkp9pN6fao VgtdaXVIzMChANbpRrWY81v4u7Dkdc76DR7AuUwlcHbHvu9FC2GIRqTtUZ8C+u95j6Be YUofn3Hc+rhA+zge6eXoZH41IGx0Z0Lw/K+A6JO8D3+aS5O827DJOa7vo8zzwcQjRsA/ DEXg== X-Forwarded-Encrypted: i=1; AJvYcCWTDMKgS850iBVinDxcEEOvU9C7iEtqGIxgmVgGXeFVOgLXzUteHf9oLDfx4CIkZFwZOs/1Epw+S95YuYlTGUL9Im+INX1VuSfkIR3DwLNdsVwcG4BiKVW6I6IMqEqzwn0uw5PZUUm2 X-Gm-Message-State: AOJu0YwShuVFtEXCoSE0fq1l2DubVdsyiYVMcswIeuBljOHZRnnimfQK YAgmdox+zOMpm1QPasAwW7q6vHI4MSe1yp/1iKXEEmGgIsL0Db/J X-Google-Smtp-Source: AGHT+IGET+0saUfgwHn28NUAEnP9WP1y5seckJICErXi/Wa7YOBOPkCo6NoqKYKrE6XVsc2GzRTBHQ== X-Received: by 2002:aa7:8888:0:b0:702:65de:19e5 with SMTP id d2e1a72fcca58-705bcf032aamr2484369b3a.33.1718204852569; Wed, 12 Jun 2024 08:07:32 -0700 (PDT) Received: from localhost ([113.143.197.225]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-6f75f3377f8sm2413661a12.60.2024.06.12.08.07.30 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Wed, 12 Jun 2024 08:07:32 -0700 (PDT) From: joswang To: Thinh.Nguyen@synopsys.com Cc: gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Jos Wang Subject: [PATCH v3, 2/3] usb: dwc3: core: add p3p2tranok quirk Date: Wed, 12 Jun 2024 23:07:23 +0800 Message-Id: <20240612150723.2299-1-joswang1221@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240601092646.52139-1-joswang1221@gmail.com> References: <20240601092646.52139-1-joswang1221@gmail.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: From: Jos Wang In the case of enable hibernation, there is an issue with the DWC31 2.00a and earlier versions where the controller link power state transition from P3/P3CPM/P4 to P2 may take longer than expected, ultimately resulting in the hibernation D3 entering time exceeding the expected 10ms. Synopsys workaround: If the PHY supports direct P3 to P2 transition, program GUSB3PIPECTL.P3P2Tran0K=1. Therefore, adding p3p2tranok quirk for workaround hibernation D3 exceeded the expected entry time. Signed-off-by: Jos Wang --- v1 -> v2: - no change v2 -> v3: - modify Author Jos Wang --- drivers/usb/dwc3/core.c | 5 +++++ drivers/usb/dwc3/core.h | 4 ++++ 2 files changed, 9 insertions(+) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 7ee61a89520b..3a8fbc2d6b99 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -666,6 +666,9 @@ static int dwc3_ss_phy_setup(struct dwc3 *dwc, int index) if (dwc->dis_del_phy_power_chg_quirk) reg &= ~DWC3_GUSB3PIPECTL_DEPOCHANGE; + if (dwc->p2p3tranok_quirk) + reg |= DWC3_GUSB3PIPECTL_P3P2TRANOK; + dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(index), reg); return 0; @@ -1715,6 +1718,8 @@ static void dwc3_get_properties(struct dwc3 *dwc) dwc->dis_split_quirk = device_property_read_bool(dev, "snps,dis-split-quirk"); + dwc->p2p3tranok_quirk = device_property_read_bool(dev, + "snps,p2p3tranok-quirk"); dwc->lpm_nyet_threshold = lpm_nyet_threshold; dwc->tx_de_emphasis = tx_de_emphasis; diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 3781c736c1a1..2810dce8b42e 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -327,6 +327,7 @@ #define DWC3_GUSB3PIPECTL_DEP1P2P3_EN DWC3_GUSB3PIPECTL_DEP1P2P3(1) #define DWC3_GUSB3PIPECTL_DEPOCHANGE BIT(18) #define DWC3_GUSB3PIPECTL_SUSPHY BIT(17) +#define DWC3_GUSB3PIPECTL_P3P2TRANOK BIT(11) #define DWC3_GUSB3PIPECTL_LFPSFILT BIT(9) #define DWC3_GUSB3PIPECTL_RX_DETOPOLL BIT(8) #define DWC3_GUSB3PIPECTL_TX_DEEPH_MASK DWC3_GUSB3PIPECTL_TX_DEEPH(3) @@ -1132,6 +1133,8 @@ struct dwc3_scratchpad_array { * instances in park mode. * @parkmode_disable_hs_quirk: set if we need to disable all HishSpeed * instances in park mode. + * @p2p3tranok_quirk: set if Controller transitions directly from phy + * power state P2 to P3 or from state P3 to P2. * @gfladj_refclk_lpm_sel: set if we need to enable SOF/ITP counter * running based on ref_clk * @tx_de_emphasis_quirk: set if we enable Tx de-emphasis quirk @@ -1361,6 +1364,7 @@ struct dwc3 { unsigned ulpi_ext_vbus_drv:1; unsigned parkmode_disable_ss_quirk:1; unsigned parkmode_disable_hs_quirk:1; + unsigned p2p3tranok_quirk:1; unsigned gfladj_refclk_lpm_sel:1; unsigned tx_de_emphasis_quirk:1;