From patchwork Tue Oct 27 20:37:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sandeep Maheswaram X-Patchwork-Id: 11861831 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8AB106A2 for ; Tue, 27 Oct 2020 20:40:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6C192222E9 for ; Tue, 27 Oct 2020 20:40:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1831792AbgJ0Uio (ORCPT ); Tue, 27 Oct 2020 16:38:44 -0400 Received: from alexa-out.qualcomm.com ([129.46.98.28]:39488 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1831782AbgJ0Uin (ORCPT ); Tue, 27 Oct 2020 16:38:43 -0400 Received: from ironmsg07-lv.qualcomm.com (HELO ironmsg07-lv.qulacomm.com) ([10.47.202.151]) by alexa-out.qualcomm.com with ESMTP; 27 Oct 2020 13:38:42 -0700 X-QCInternal: smtphost Received: from ironmsg02-blr.qualcomm.com ([10.86.208.131]) by ironmsg07-lv.qulacomm.com with ESMTP/TLS/AES256-SHA; 27 Oct 2020 13:38:40 -0700 X-QCInternal: smtphost Received: from c-sanm-linux.qualcomm.com ([10.206.25.31]) by ironmsg02-blr.qualcomm.com with ESMTP; 28 Oct 2020 02:08:16 +0530 Received: by c-sanm-linux.qualcomm.com (Postfix, from userid 2343233) id 38ABC2EC8; Wed, 28 Oct 2020 02:08:15 +0530 (IST) From: Sandeep Maheswaram To: Andy Gross , Bjorn Andersson , Greg Kroah-Hartman , Rob Herring , Mark Rutland , Felipe Balbi , Stephen Boyd , Doug Anderson , Matthias Kaehlcke Cc: linux-arm-msm@vger.kernel.org, linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Manu Gautam , Sandeep Maheswaram Subject: [PATCH v4 1/5] usb: dwc3: core: Host wake up support from system suspend Date: Wed, 28 Oct 2020 02:07:59 +0530 Message-Id: <1603831083-2025-2-git-send-email-sanm@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1603831083-2025-1-git-send-email-sanm@codeaurora.org> References: <1603831083-2025-1-git-send-email-sanm@codeaurora.org> Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Avoiding phy powerdown in host mode so that it can be woken up by devices. Added hs_phy_mode flag to check connection status and set phy mode and configure interrupts. Signed-off-by: Sandeep Maheswaram --- drivers/usb/dwc3/core.c | 14 +++----------- drivers/usb/dwc3/core.h | 2 ++ 2 files changed, 5 insertions(+), 11 deletions(-) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index bdf0925..0e4bc1e 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -1672,10 +1672,6 @@ static int dwc3_suspend_common(struct dwc3 *dwc, pm_message_t msg) dwc3_core_exit(dwc); break; case DWC3_GCTL_PRTCAP_HOST: - if (!PMSG_IS_AUTO(msg)) { - dwc3_core_exit(dwc); - break; - } /* Let controller to suspend HSPHY before PHY driver suspends */ if (dwc->dis_u2_susphy_quirk || @@ -1733,13 +1729,9 @@ static int dwc3_resume_common(struct dwc3 *dwc, pm_message_t msg) spin_unlock_irqrestore(&dwc->lock, flags); break; case DWC3_GCTL_PRTCAP_HOST: - if (!PMSG_IS_AUTO(msg)) { - ret = dwc3_core_init_for_resume(dwc); - if (ret) - return ret; - dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_HOST); - break; - } + + dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_HOST); + /* Restore GUSB2PHYCFG bits that were modified in suspend */ reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0)); if (dwc->dis_u2_susphy_quirk) diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 74323b1..da63d4a3 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -1101,6 +1101,8 @@ struct dwc3 { bool phys_ready; + unsigned int hs_phy_mode; + struct ulpi *ulpi; bool ulpi_ready;