From patchwork Sat May 4 09:52:24 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 10929641 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D94E2912 for ; Sat, 4 May 2019 09:52:56 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C9F122880C for ; Sat, 4 May 2019 09:52:56 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BC49B28816; Sat, 4 May 2019 09:52:56 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5AE162880C for ; Sat, 4 May 2019 09:52:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726957AbfEDJwu (ORCPT ); Sat, 4 May 2019 05:52:50 -0400 Received: from mail.kernel.org ([198.145.29.99]:55222 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726694AbfEDJwt (ORCPT ); Sat, 4 May 2019 05:52:49 -0400 Received: from localhost.localdomain (unknown [194.230.155.114]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 8DAAB206DF; Sat, 4 May 2019 09:52:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1556963568; bh=yyaQ8JmLbaIGxXWU0tbqV9JpPSBeLwoAskWn0Lg7RkA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sP17J3sGzMKPn/79A2HbxCAJeSn30we8Blg4uVPmezrZI0XxrUd2xEihPxUbtIAE9 JYOKHtf1imUcnR8ETRjVAEGjBI+ZrY39vQHTmEpYN7L9LsXk45GdnKzrjGFtVA++4d bUx66cZ/mJF35vM8Az74xFWmhXEFNU+OfH/LPEqs= From: Krzysztof Kozlowski To: Vinod Koul , Dan Williams , Minas Harutyunyan , Greg Kroah-Hartman , dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Cc: Jules Maselbas , Felipe Balbi Subject: [PATCH] usb: dwc2: gadget: Replace phyif with phy_utmi_width Date: Sat, 4 May 2019 11:52:24 +0200 Message-Id: <20190504095225.23883-2-krzk@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190504095225.23883-1-krzk@kernel.org> References: <20190504095225.23883-1-krzk@kernel.org> Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Jules Maselbas The phy utmi width information is already set in hsotg params, phyif is only used in few places and I don't see any reason to not use hsotg's params. Moreover the utmi width was being forced to 16 bits by platform initialization which doesn't take in account HW configuration. Acked-by: Minas Harutyunyan Signed-off-by: Jules Maselbas Signed-off-by: Felipe Balbi --- drivers/usb/dwc2/core.h | 2 -- drivers/usb/dwc2/gadget.c | 20 ++++++++++++++------ drivers/usb/dwc2/platform.c | 5 +---- 3 files changed, 15 insertions(+), 12 deletions(-) diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h index 764c78ebee28..8e3edf10d76d 100644 --- a/drivers/usb/dwc2/core.h +++ b/drivers/usb/dwc2/core.h @@ -871,7 +871,6 @@ struct dwc2_hregs_backup { * removed once all SoCs support usb transceiver. * @supplies: Definition of USB power supplies * @vbus_supply: Regulator supplying vbus. - * @phyif: PHY interface width * @lock: Spinlock that protects all the driver data structures * @priv: Stores a pointer to the struct usb_hcd * @queuing_high_bandwidth: True if multiple packets of a high-bandwidth @@ -1056,7 +1055,6 @@ struct dwc2_hsotg { struct dwc2_hsotg_plat *plat; struct regulator_bulk_data supplies[DWC2_NUM_SUPPLIES]; struct regulator *vbus_supply; - u32 phyif; spinlock_t lock; void *priv; diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index 9b737c4e8f50..614f8c34d759 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -3314,20 +3314,28 @@ void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg, /* keep other bits untouched (so e.g. forced modes are not lost) */ usbcfg = dwc2_readl(hsotg, GUSBCFG); + /* remove the HNP/SRP */ usbcfg &= ~(GUSBCFG_TOUTCAL_MASK | GUSBCFG_PHYIF16 | GUSBCFG_SRPCAP | - GUSBCFG_HNPCAP | GUSBCFG_USBTRDTIM_MASK); + GUSBCFG_HNPCAP); + usbcfg |= GUSBCFG_TOUTCAL(7); if (hsotg->params.phy_type == DWC2_PHY_TYPE_PARAM_FS && (hsotg->params.speed == DWC2_SPEED_PARAM_FULL || hsotg->params.speed == DWC2_SPEED_PARAM_LOW)) { /* FS/LS Dedicated Transceiver Interface */ usbcfg |= GUSBCFG_PHYSEL; - } else { - /* set the PLL on, remove the HNP/SRP and set the PHY */ - val = (hsotg->phyif == GUSBCFG_PHYIF8) ? 9 : 5; - usbcfg |= hsotg->phyif | GUSBCFG_TOUTCAL(7) | - (val << GUSBCFG_USBTRDTIM_SHIFT); + } else if (hsotg->params.phy_type == DWC2_PHY_TYPE_PARAM_UTMI) { + if (hsotg->params.phy_utmi_width == 16) + usbcfg |= GUSBCFG_PHYIF16; + + /* Set turnaround time */ + usbcfg &= ~GUSBCFG_USBTRDTIM_MASK; + if (hsotg->params.phy_utmi_width == 16) + usbcfg |= 5 << GUSBCFG_USBTRDTIM_SHIFT; + else + usbcfg |= 9 << GUSBCFG_USBTRDTIM_SHIFT; } + dwc2_writel(hsotg, usbcfg, GUSBCFG); dwc2_hsotg_init_fifo(hsotg); diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c index c01fa8ffc0c8..d10a7f8daec3 100644 --- a/drivers/usb/dwc2/platform.c +++ b/drivers/usb/dwc2/platform.c @@ -230,9 +230,6 @@ static int dwc2_lowlevel_hw_init(struct dwc2_hsotg *hsotg) reset_control_deassert(hsotg->reset_ecc); - /* Set default UTMI width */ - hsotg->phyif = GUSBCFG_PHYIF16; - /* * Attempt to find a generic PHY, then look for an old style * USB PHY and then fall back to pdata @@ -280,7 +277,7 @@ static int dwc2_lowlevel_hw_init(struct dwc2_hsotg *hsotg) * width is 8-bit and set the phyif appropriately. */ if (phy_get_bus_width(hsotg->phy) == 8) - hsotg->phyif = GUSBCFG_PHYIF8; + hsotg->params.phy_utmi_width = 8; } /* Clock */