From patchwork Tue Apr 13 07:36:37 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Artur Petrosyan X-Patchwork-Id: 420606 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=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED 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 7B2C9C43460 for ; Tue, 13 Apr 2021 07:36:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5856A613B8 for ; Tue, 13 Apr 2021 07:36:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240613AbhDMHhD (ORCPT ); Tue, 13 Apr 2021 03:37:03 -0400 Received: from smtprelay-out1.synopsys.com ([149.117.87.133]:60522 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240497AbhDMHhB (ORCPT ); Tue, 13 Apr 2021 03:37:01 -0400 Received: from mailhost.synopsys.com (mdc-mailhost2.synopsys.com [10.225.0.210]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by smtprelay-out1.synopsys.com (Postfix) with ESMTPS id 4FA91C00BB; Tue, 13 Apr 2021 07:36:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1618299401; bh=dKhq2iqRjrY0N9i7U4VKo0N5zELnYfh/gudC2BsyoPY=; h=Date:In-Reply-To:References:From:Subject:To:Cc:From; b=CwL/0OSU1z55QZ4bJIcb7kdUWokwGxr7dS43AXvMlfCC2lW3S00PyGjHFGVkBcadH GJBqz3V24hvCnYUkw2HnoC/Wt5XdH4NhfpMCZMrQc5IrfaFuyORI4zod4KT7/HsHMD Es2jPpwepXwsFp1XFNDJSzSktMgd4TqWaBaeFuDtcxSZQsV1500Z0HEMR2hvVqHfxU 9I5UICyWkkWTZOt+JYjiV70fHP/OSDSqw/4NXj9+Yxo6vBAYQXkzTqzqzSubnUUkJo /dledWB2x4+Py9gBJeBjgpSmcAR6GczyOQmLZ23+phhvNuntOHN7y7/pYe1lbvRnM9 6WZX7vcCcW7iA== Received: from razpc-HP (razpc-hp.internal.synopsys.com [10.116.126.207]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by mailhost.synopsys.com (Postfix) with ESMTPSA id 921E8A0099; Tue, 13 Apr 2021 07:36:38 +0000 (UTC) Received: by razpc-HP (sSMTP sendmail emulation); Tue, 13 Apr 2021 11:36:37 +0400 Date: Tue, 13 Apr 2021 11:36:37 +0400 In-Reply-To: References: X-SNPS-Relay: synopsys.com From: Artur Petrosyan Subject: [PATCH v2 05/12] usb: dwc2: Add exit clock gating from session request interrupt To: Felipe Balbi , Greg Kroah-Hartman , Minas Harutyunyan , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org Cc: John Youn , Artur Petrosyan Message-Id: <20210413073638.921E8A0099@mailhost.synopsys.com> Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Added clock gating exit flow from session request interrupt handler according programming guide. Signed-off-by: Artur Petrosyan --- Changes in v2: - None drivers/usb/dwc2/core_intr.c | 19 +++++++++++++------ 1 file changed, 13 insertions(+), 6 deletions(-) diff --git a/drivers/usb/dwc2/core_intr.c b/drivers/usb/dwc2/core_intr.c index c764407e7633..550c52c1a0c7 100644 --- a/drivers/usb/dwc2/core_intr.c +++ b/drivers/usb/dwc2/core_intr.c @@ -316,12 +316,19 @@ static void dwc2_handle_session_req_intr(struct dwc2_hsotg *hsotg) hsotg->lx_state); if (dwc2_is_device_mode(hsotg)) { - if (hsotg->lx_state == DWC2_L2 && hsotg->in_ppd) { - ret = dwc2_exit_partial_power_down(hsotg, 0, - true); - if (ret) - dev_err(hsotg->dev, - "exit power_down failed\n"); + if (hsotg->lx_state == DWC2_L2) { + if (hsotg->in_ppd) { + ret = dwc2_exit_partial_power_down(hsotg, 0, + true); + if (ret) + dev_err(hsotg->dev, + "exit power_down failed\n"); + } + + /* Exit gadget mode clock gating. */ + if (hsotg->params.power_down == + DWC2_POWER_DOWN_PARAM_NONE && hsotg->bus_suspended) + dwc2_gadget_exit_clock_gating(hsotg, 0); } /*