From patchwork Wed Sep 7 14:46:22 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Stein X-Patchwork-Id: 12969066 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2A0AFC38145 for ; Wed, 7 Sep 2022 14:46:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229713AbiIGOqk (ORCPT ); Wed, 7 Sep 2022 10:46:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49676 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229662AbiIGOqi (ORCPT ); Wed, 7 Sep 2022 10:46:38 -0400 Received: from mx1.tq-group.com (mx1.tq-group.com [93.104.207.81]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7AB367FF9E; Wed, 7 Sep 2022 07:46:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tq-group.com; i=@tq-group.com; q=dns/txt; s=key1; t=1662561997; x=1694097997; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=+DABEQqz4QfwbbWYVa5sSadQTpuSR2LafHiafic1pYk=; b=QG4tZIn3o0DQ80ymE06Ms1rxblvGB4ZRoSixTRalnvtEt66BJCAzpARy Uw62TmWJoraH64RSjE6nk9S/6TJqWM1d8G1dmh1BRQSkJAY8HoSqBvDmT ae6lkquKaNDSOSQOx6lomcBIkb9enVMs3cYZGQr0XLz+cwCO/YRyyyVti B99/yPjimygxp9qomdCTIQ0Co7rw5oHEMynZwmB7WdCvnWSzgrEO2y9GB kUpln2LFQzCOMFPbuxq+HZtKjBpbF9Q93XCjA/sNIgAB2CcwvP2GSQN1p M+A2LGAok6+JI8dS7dmHq8fgEQuUwMtgFxYo7Z7g7Wm1MZyHD5QRJ6iqX Q==; X-IronPort-AV: E=Sophos;i="5.93,297,1654552800"; d="scan'208";a="26047486" Received: from unknown (HELO tq-pgp-pr1.tq-net.de) ([192.168.6.15]) by mx1-pgp.tq-group.com with ESMTP; 07 Sep 2022 16:46:31 +0200 Received: from mx1.tq-group.com ([192.168.6.7]) by tq-pgp-pr1.tq-net.de (PGP Universal service); Wed, 07 Sep 2022 16:46:31 +0200 X-PGP-Universal: processed; by tq-pgp-pr1.tq-net.de on Wed, 07 Sep 2022 16:46:31 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tq-group.com; i=@tq-group.com; q=dns/txt; s=key1; t=1662561991; x=1694097991; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=+DABEQqz4QfwbbWYVa5sSadQTpuSR2LafHiafic1pYk=; b=A2viJqYjOx9fjTMy4XjpIg5a3gskrYMDm3/t/6/5YWSWTILtfWQgHf6t db8/lLyrgxGxKDHGHzFng+/zmqMs099C5bWSWHKaJvBT9kjPTQ3L+Uhml ipZvMx0Ppr3kix0oif4FfPXVUljXuo7+r05zrA45p1R0ZaBV52MnvJJDy MFSMRQkY1b+V8GN8noWvcJ7AZETWU1Mh3bOWnEjezTpliaQD5FRAAaToR /4UOzhWvJDCnuvMV8U4bJNLpKU7XoLhTDQm2hSTj0c9m/95r6nXhh13TX 04yxPPJXk/kn1vlqPL7hleX6gcmkY0TKSoSJHcXQGh+Qe0DOShMOG/nVH Q==; X-IronPort-AV: E=Sophos;i="5.93,297,1654552800"; d="scan'208";a="26047485" Received: from vtuxmail01.tq-net.de ([10.115.0.20]) by mx1.tq-group.com with ESMTP; 07 Sep 2022 16:46:30 +0200 Received: from steina-w.tq-net.de (unknown [10.123.49.11]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by vtuxmail01.tq-net.de (Postfix) with ESMTPSA id A2A7F280056; Wed, 7 Sep 2022 16:46:30 +0200 (CEST) From: Alexander Stein To: Greg Kroah-Hartman , Rob Herring , Krzysztof Kozlowski , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , Li Jun Cc: Alexander Stein , linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/4] usb: dwc3: core: add gfladj_refclk_lpm_sel quirk Date: Wed, 7 Sep 2022 16:46:22 +0200 Message-Id: <20220907144624.2810117-3-alexander.stein@ew.tq-group.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220907144624.2810117-1-alexander.stein@ew.tq-group.com> References: <20220907144624.2810117-1-alexander.stein@ew.tq-group.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org This selects the SOF/ITP counter be running on ref_clk. As documented U2_FREECLK_EXISTS has to be set to 0 as well. Signed-off-by: Alexander Stein Reviewed-by: Li Jun --- drivers/usb/dwc3/core.c | 8 +++++++- drivers/usb/dwc3/core.h | 2 ++ 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 8c8e32651473..12e8e7d34cb8 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -408,6 +408,10 @@ static void dwc3_ref_clk_period(struct dwc3 *dwc) reg |= FIELD_PREP(DWC3_GFLADJ_REFCLK_FLADJ_MASK, fladj) | FIELD_PREP(DWC3_GFLADJ_240MHZDECR, decr >> 1) | FIELD_PREP(DWC3_GFLADJ_240MHZDECR_PLS1, decr & 1); + + if (dwc->gfladj_refclk_lpm_sel) + reg |= DWC3_GFLADJ_REFCLK_LPM_SEL; + dwc3_writel(dwc->regs, DWC3_GFLADJ, reg); } @@ -789,7 +793,7 @@ static int dwc3_phy_setup(struct dwc3 *dwc) else reg |= DWC3_GUSB2PHYCFG_ENBLSLPM; - if (dwc->dis_u2_freeclk_exists_quirk) + if (dwc->dis_u2_freeclk_exists_quirk || dwc->gfladj_refclk_lpm_sel) reg &= ~DWC3_GUSB2PHYCFG_U2_FREECLK_EXISTS; dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg); @@ -1525,6 +1529,8 @@ static void dwc3_get_properties(struct dwc3 *dwc) "snps,dis-tx-ipgap-linecheck-quirk"); dwc->parkmode_disable_ss_quirk = device_property_read_bool(dev, "snps,parkmode-disable-ss-quirk"); + dwc->gfladj_refclk_lpm_sel = device_property_read_bool(dev, + "snps,gfladj-refclk-lpm-sel-quirk"); dwc->tx_de_emphasis_quirk = device_property_read_bool(dev, "snps,tx_de_emphasis_quirk"); diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 4fe4287dc934..11975a03316f 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -391,6 +391,7 @@ #define DWC3_GFLADJ_30MHZ_SDBND_SEL BIT(7) #define DWC3_GFLADJ_30MHZ_MASK 0x3f #define DWC3_GFLADJ_REFCLK_FLADJ_MASK GENMASK(21, 8) +#define DWC3_GFLADJ_REFCLK_LPM_SEL BIT(23) #define DWC3_GFLADJ_240MHZDECR GENMASK(30, 24) #define DWC3_GFLADJ_240MHZDECR_PLS1 BIT(31) @@ -1312,6 +1313,7 @@ struct dwc3 { unsigned dis_del_phy_power_chg_quirk:1; unsigned dis_tx_ipgap_linecheck_quirk:1; unsigned parkmode_disable_ss_quirk:1; + unsigned gfladj_refclk_lpm_sel:1; unsigned tx_de_emphasis_quirk:1; unsigned tx_de_emphasis:2;