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=-10.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 50C07C433E4 for ; Tue, 21 Jul 2020 22:56:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2C10C20720 for ; Tue, 21 Jul 2020 22:56:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="JU9N1RcO" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731317AbgGUW4B (ORCPT ); Tue, 21 Jul 2020 18:56:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48806 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730431AbgGUW4A (ORCPT ); Tue, 21 Jul 2020 18:56:00 -0400 Received: from mail-pl1-x644.google.com (mail-pl1-x644.google.com [IPv6:2607:f8b0:4864:20::644]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D3494C0619DC for ; Tue, 21 Jul 2020 15:55:59 -0700 (PDT) Received: by mail-pl1-x644.google.com with SMTP id t6so20237plo.3 for ; Tue, 21 Jul 2020 15:55:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=J82NzWlUX3fpB1BpFP7R77MeVZrYWqkjjAO7NECdlrY=; b=JU9N1RcOu3kcP49Q05uh7HoTXcA9kH4g53m3Nvh7PyKn9OeLl9dwuDYKl17smPIayq BJUgjZnySjsbJ5K53SK1kffozbK7q5fGJvO5wNqPy0VIePoXQ+x97wS4OQmqQEDtEs3f 1VwXt+mYryfN0m3jaT92OFvfCsor4MWgXedX8= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=J82NzWlUX3fpB1BpFP7R77MeVZrYWqkjjAO7NECdlrY=; b=DdP9/esVXsBY0g29A5K09z+z8bQX8b4o1Png12rImxyVd1SGZmjelVZlu5C1lkyPFv jjIu63kGgJDeZ4aK409tCgteJB4jdExjVbkq9OuS2B/E6JiyguepgRnoM0B09bgH6GyO 01XCinauxlVId2MQ7G/OFjFYC5flQ/280OSHErlVNY8irTvIdqUrrqZ+/Z3KhrLSpDUA 26xKvyzNY7ztobkpFZstXuj/Gz3ehqsWcsYBC25DOCe8Mx7Lj+z89U2+Msj9ry/pcQtC mz9Xb5SQBUgSmUDyKmB6zCuZ8XTLDibcztX3ChV1Ayr588/6BZg2p/56SHa/0UPIss5Z BzeQ== X-Gm-Message-State: AOAM532vhEa8gQraprpKmUXG+qxzefTmtjA8vACyShudfLAve4Vhbgfm Oy9hhoCyD2sx9E9SYw8/vZob2w== X-Google-Smtp-Source: ABdhPJxsVDU3GYw5OrlGWmVnESwe7C5Qm+Xjt5tGMd8BDbFagsYYeNQCmDx+cpXhJ2UqwTDqAfDOtw== X-Received: by 2002:a17:90a:21ef:: with SMTP id q102mr7298903pjc.101.1595372159197; Tue, 21 Jul 2020 15:55:59 -0700 (PDT) Received: from localhost ([2620:15c:202:1:f693:9fff:fef4:e70a]) by smtp.gmail.com with ESMTPSA id g30sm22072092pfq.189.2020.07.21.15.55.58 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 21 Jul 2020 15:55:58 -0700 (PDT) Date: Tue, 21 Jul 2020 15:55:57 -0700 From: Matthias Kaehlcke To: Sandeep Maheswaram Cc: Andy Gross , Bjorn Andersson , Greg Kroah-Hartman , Rob Herring , Mark Rutland , Felipe Balbi , Stephen Boyd , Doug Anderson , linux-arm-msm@vger.kernel.org, linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Manu Gautam Subject: Re: [PATCH v2 2/3] usb: dwc3: qcom: Configure wakeup interrupts and set genpd active wakeup flag Message-ID: <20200721225557.GX3191083@google.com> References: <1594235417-23066-1-git-send-email-sanm@codeaurora.org> <1594235417-23066-3-git-send-email-sanm@codeaurora.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <1594235417-23066-3-git-send-email-sanm@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Sandeep, On Thu, Jul 09, 2020 at 12:40:16AM +0530, Sandeep Maheswaram wrote: > configure interrupts based on hs_phy_flag. Set genpd active wakeup flag > for usb gdsc if wakeup capable devices are connected. as Stephen remarked, please describe why this patch is doing what it is doing. > Signed-off-by: Sandeep Maheswaram > --- > drivers/usb/dwc3/dwc3-qcom.c | 73 ++++++++++++++++++++++++++++++++++---------- > 1 file changed, 57 insertions(+), 16 deletions(-) > > diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c > index 1dfd024..8902670 100644 > --- a/drivers/usb/dwc3/dwc3-qcom.c > +++ b/drivers/usb/dwc3/dwc3-qcom.c > @@ -16,9 +16,11 @@ > #include > #include > #include > +#include > #include > #include > #include > +#include > > #include "core.h" > > @@ -192,21 +194,34 @@ static int dwc3_qcom_register_extcon(struct dwc3_qcom *qcom) > > static void dwc3_qcom_disable_interrupts(struct dwc3_qcom *qcom) > { > + struct dwc3 *dwc = platform_get_drvdata(qcom->dwc3); > + > if (qcom->hs_phy_irq) { > disable_irq_wake(qcom->hs_phy_irq); > disable_irq_nosync(qcom->hs_phy_irq); > } nit: add empty line > + if (dwc->hs_phy_flags & PHY_MODE_USB_HOST_LS) { > + if (qcom->dp_hs_phy_irq) { > + disable_irq_wake(qcom->dp_hs_phy_irq); > + disable_irq_nosync(qcom->dp_hs_phy_irq); > + } > + } else if (dwc->hs_phy_flags & PHY_MODE_USB_HOST_HS) { > + if (qcom->dm_hs_phy_irq) { > + disable_irq_wake(qcom->dm_hs_phy_irq); > + disable_irq_nosync(qcom->dm_hs_phy_irq); > + } > + } else { > delete empty line > - if (qcom->dp_hs_phy_irq) { > - disable_irq_wake(qcom->dp_hs_phy_irq); > - disable_irq_nosync(qcom->dp_hs_phy_irq); > - } > + if (qcom->dp_hs_phy_irq) { > + disable_irq_wake(qcom->dp_hs_phy_irq); > + disable_irq_nosync(qcom->dp_hs_phy_irq); > + } > > - if (qcom->dm_hs_phy_irq) { > - disable_irq_wake(qcom->dm_hs_phy_irq); > - disable_irq_nosync(qcom->dm_hs_phy_irq); > + if (qcom->dm_hs_phy_irq) { > + disable_irq_wake(qcom->dm_hs_phy_irq); > + disable_irq_nosync(qcom->dm_hs_phy_irq); > + } > } > - > if (qcom->ss_phy_irq) { > disable_irq_wake(qcom->ss_phy_irq); > disable_irq_nosync(qcom->ss_phy_irq); > @@ -215,21 +230,34 @@ static void dwc3_qcom_disable_interrupts(struct dwc3_qcom *qcom) > > static void dwc3_qcom_enable_interrupts(struct dwc3_qcom *qcom) > { > + struct dwc3 *dwc = platform_get_drvdata(qcom->dwc3); > + > if (qcom->hs_phy_irq) { > enable_irq(qcom->hs_phy_irq); > enable_irq_wake(qcom->hs_phy_irq); > } nit: add empty line > + if (dwc->hs_phy_flags & PHY_MODE_USB_HOST_LS) { > + if (qcom->dp_hs_phy_irq) { > + enable_irq(qcom->dp_hs_phy_irq); > + enable_irq_wake(qcom->dp_hs_phy_irq); > + } > + } else if (dwc->hs_phy_flags & PHY_MODE_USB_HOST_HS) { > + if (qcom->dm_hs_phy_irq) { > + enable_irq(qcom->dm_hs_phy_irq); > + enable_irq_wake(qcom->dm_hs_phy_irq); > + } > + } else { > delete empty line > - if (qcom->dp_hs_phy_irq) { > - enable_irq(qcom->dp_hs_phy_irq); > - enable_irq_wake(qcom->dp_hs_phy_irq); > - } > + if (qcom->dp_hs_phy_irq) { > + enable_irq(qcom->dp_hs_phy_irq); > + enable_irq_wake(qcom->dp_hs_phy_irq); > + } > > - if (qcom->dm_hs_phy_irq) { > - enable_irq(qcom->dm_hs_phy_irq); > - enable_irq_wake(qcom->dm_hs_phy_irq); > + if (qcom->dm_hs_phy_irq) { > + enable_irq(qcom->dm_hs_phy_irq); > + enable_irq_wake(qcom->dm_hs_phy_irq); > + } > } > - > if (qcom->ss_phy_irq) { > enable_irq(qcom->ss_phy_irq); > enable_irq_wake(qcom->ss_phy_irq); > @@ -240,6 +268,14 @@ static int dwc3_qcom_suspend(struct dwc3_qcom *qcom) > { > u32 val; > int i; > + struct dwc3 *dwc = platform_get_drvdata(qcom->dwc3); > + struct usb_hcd *hcd = platform_get_drvdata(dwc->xhci); > + struct generic_pm_domain *genpd; > + > + genpd = pd_to_genpd(qcom->dev->pm_domain); nit: assign in declaration? > + > + if (genpd && usb_wakeup_enabled_descendants(hcd->self.root_hub)) > + genpd->flags |= GENPD_FLAG_ACTIVE_WAKEUP; > > if (qcom->is_suspended) > return 0; > @@ -261,6 +297,11 @@ static int dwc3_qcom_resume(struct dwc3_qcom *qcom) > { > int ret; > int i; > + struct generic_pm_domain *genpd; > + > + genpd = pd_to_genpd(qcom->dev->pm_domain); > + if (genpd) > + genpd->flags &= !GENPD_FLAG_ACTIVE_WAKEUP; ~GENPD_FLAG_ACTIVE_WAKEUP; ?