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 X-Spam-Level: X-Spam-Status: No, score=-8.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id ED2DDC55194 for ; Thu, 23 Apr 2020 14:05:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D206A2077D for ; Thu, 23 Apr 2020 14:05:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726363AbgDWOFD (ORCPT ); Thu, 23 Apr 2020 10:05:03 -0400 Received: from mga05.intel.com ([192.55.52.43]:17591 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726079AbgDWOFC (ORCPT ); Thu, 23 Apr 2020 10:05:02 -0400 IronPort-SDR: c7vrka6OyuW3pEUeuYwHcMfnoIiTsy5S26GLKirrT0VUbIWiAZwpr0FzJnPFMqeApkfcHt0TZW N+jZpgmdAiXg== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Apr 2020 07:05:02 -0700 IronPort-SDR: vSHftgx/xm8MIZ2aj/xAFIsOTZ2xMkci/s7kKRxD3RkmW+c87tTxsopNO6aQtTw0vdTaz/XfnP DNcoQbAo2mzg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,307,1583222400"; d="scan'208";a="246272302" Received: from mattu-haswell.fi.intel.com (HELO [10.237.72.170]) ([10.237.72.170]) by fmsmga007.fm.intel.com with ESMTP; 23 Apr 2020 07:04:59 -0700 Subject: Re: [PATCH v9 3/5] usb: xhci: Add support for Renesas controller with memory To: Vinod Koul , Mathias Nyman , Greg Kroah-Hartman Cc: linux-arm-msm@vger.kernel.org, Bjorn Andersson , Yoshihiro Shimoda , Christian Lamparter , John Stultz , Alan Stern , =?UTF-8?Q?Andreas_B=c3=b6hler?= , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org References: <20200414164152.2786474-1-vkoul@kernel.org> <20200414164152.2786474-4-vkoul@kernel.org> From: Mathias Nyman Openpgp: preference=signencrypt Autocrypt: addr=mathias.nyman@linux.intel.com; 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Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <20200414164152.2786474-4-vkoul@kernel.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org On 14.4.2020 19.41, Vinod Koul wrote: > Some rensas controller like uPD720201 and uPD720202 need firmware to be > loaded. Add these devices in table and invoke renesas firmware loader > functions to check and load the firmware into device memory when > required. > > Signed-off-by: Vinod Koul > --- > drivers/usb/host/xhci-pci.c | 33 +++++++++++++++++++++++++++++++++ > drivers/usb/host/xhci.h | 1 + > 2 files changed, 34 insertions(+) > > diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c > index b6c2f5c530e3..11521e2e1720 100644 > --- a/drivers/usb/host/xhci-pci.c > +++ b/drivers/usb/host/xhci-pci.c > @@ -15,6 +15,7 @@ > > #include "xhci.h" > #include "xhci-trace.h" > +#include "xhci-pci.h" > > #define SSIC_PORT_NUM 2 > #define SSIC_PORT_CFG2 0x880c > @@ -328,6 +329,21 @@ static int xhci_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) > int retval; > struct xhci_hcd *xhci; > struct usb_hcd *hcd; > + struct xhci_driver_data *driver_data; > + > + driver_data = (struct xhci_driver_data *)id->driver_data; > + > + if (driver_data && driver_data->quirks & XHCI_RENESAS_FW_QUIRK) { > + retval = renesas_xhci_pci_probe(dev, id); > + switch (retval) { > + case 0: /* fw check success, continue */ > + break; > + case 1: /* fw will be loaded by async load */ > + return 0; This is no longer true, right? To me it looks like renesas_xhci_pci_probe() returns 0 on success, both if firmware was already running or if successfully loaded, and negative on error While changing this the function name "renesas_xhci_pci_probe()" should be changed as well. This isn't anymore a separate firmware loading driver, just a a lot of renesas firmware loading code. You could call renesas_xhci_check_request_fw() directly instead: if (driver_data && driver_data->quirks & XHCI_RENESAS_FW_QUIRK) { retval = renesas_xhci_check_request_fw(dev, id); if (retval) return retval; } -Mathias