From patchwork Mon Jun 28 12:08:11 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sandeep Maheswaram X-Patchwork-Id: 12347821 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=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=ham 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 6AAECC49EA3 for ; Mon, 28 Jun 2021 12:08:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 51BC161C69 for ; Mon, 28 Jun 2021 12:08:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232926AbhF1MLX (ORCPT ); Mon, 28 Jun 2021 08:11:23 -0400 Received: from alexa-out.qualcomm.com ([129.46.98.28]:8336 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232831AbhF1MLW (ORCPT ); Mon, 28 Jun 2021 08:11:22 -0400 Received: from ironmsg09-lv.qualcomm.com ([10.47.202.153]) by alexa-out.qualcomm.com with ESMTP; 28 Jun 2021 05:08:57 -0700 X-QCInternal: smtphost Received: from ironmsg02-blr.qualcomm.com ([10.86.208.131]) by ironmsg09-lv.qualcomm.com with ESMTP/TLS/AES256-SHA; 28 Jun 2021 05:08:55 -0700 X-QCInternal: smtphost Received: from c-sanm-linux.qualcomm.com ([10.206.25.31]) by ironmsg02-blr.qualcomm.com with ESMTP; 28 Jun 2021 17:38:24 +0530 Received: by c-sanm-linux.qualcomm.com (Postfix, from userid 2343233) id 2BBB63A48; Mon, 28 Jun 2021 17:38:23 +0530 (IST) From: Sandeep Maheswaram To: Andy Gross , Bjorn Andersson , Greg Kroah-Hartman , Felipe Balbi , Stephen Boyd , Doug Anderson , Matthias Kaehlcke , Mathias Nyman Cc: linux-arm-msm@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Pratham Pratap , Sandeep Maheswaram Subject: [PATCH v8 0/6] USB DWC3 host wake up support from system suspend Date: Mon, 28 Jun 2021 17:38:11 +0530 Message-Id: <1624882097-23265-1-git-send-email-sanm@codeaurora.org> X-Mailer: git-send-email 2.7.4 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Avoiding phy powerdown in host mode when wakeup capable devices are connected, so that it can be wake up by devices. Set GENPD_FLAG_ACTIVE_WAKEUP flag to keep usb30_prim gdsc active when wakeup capable devices are connected to the host. Changes in v8: Moved the dwc3 suspend quirk code in dwc3/host.c to xhci-plat.c Checking phy_power_off flag instead of usb_wakeup_enabled_descendants to keep gdsc active. Changes in v7: Change in commit text and message in PATCH 1/5 and PATCH 5/5 as per Matthias suggestion. Added curly braces for if and else if sections in PATCH 4/5. Changes in v6: Addressed comments in host.c and core.c Separated the patches in dwc3-qcom.c to make it simple. Dropped wakeup-source change as it is not related to this series. Changes in v5: Added phy_power_off flag to check presence of wakeup capable devices. Dropped patch[v4,4/5] as it is present linux-next. Addressed comments in host.c and dwc3-qcom.c. Changes in v4: Addressed Matthias comments raised in v3. Changes in v3: Removed need_phy_for_wakeup flag and by default avoiding phy powerdown. Addressed Matthias comments and added entry for DEV_SUPERSPEED. Added suspend_quirk in dwc3 host and moved the dwc3_set_phy_speed_flags. Added wakeup-source dt entry and reading in dwc-qcom.c glue driver. Changes in v2: Dropped the patch in clock to set GENPD_FLAG_ACTIVE_WAKEUP flag and setting in usb dwc3 driver. Separated the core patch and glue driver patch. Made need_phy_for_wakeup flag part of dwc structure and hs_phy_flags as unsgined int. Adrressed the comment on device_init_wakeup call. Corrected offset for reading portsc register. Added pacth to support wakeup in xo shutdown case. Sandeep Maheswaram (6): usb: dwc3: core: Add HS phy mode variable and phy poweroff flag usb: host: xhci: plat: Add suspend quirk for dwc3 controller usb: dwc3: core: Host wake up support from system suspend usb: dwc3: qcom: Add helper functions to enable,disable wake irqs usb: dwc3: qcom: Configure wakeup interrupts during suspend usb: dwc3: qcom: Keep power domain on to support wakeup drivers/usb/dwc3/core.c | 7 ++-- drivers/usb/dwc3/core.h | 3 ++ drivers/usb/dwc3/dwc3-qcom.c | 81 ++++++++++++++++++++++++++++---------------- drivers/usb/host/xhci-plat.c | 38 +++++++++++++++++++++ 4 files changed, 97 insertions(+), 32 deletions(-)