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=-7.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY,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 0A734C4CEC5 for ; Fri, 13 Sep 2019 13:22:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CE69F214DA for ; Fri, 13 Sep 2019 13:22:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1568380929; bh=nwfOfhunG20kdXDdjg0VkRIACXc39rf2cOq4NEzaB74=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=jXVUfyexGf7SFyx81en96ncpiESrqdJJJi/0eIXbEOwzOsizP4quT9CP43IOvw/dk C6N41e2qapekL7QYTqwV9jeEOeR1uA/g4H+FGp/FatT+ZOJXs36XvZL/HinFxDUp7H KqTTwVOR9rX3iPY9A3lsgf7x5PZ2lGQ2PMHmkBLU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390968AbfIMNWI (ORCPT ); Fri, 13 Sep 2019 09:22:08 -0400 Received: from mail.kernel.org ([198.145.29.99]:52268 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390962AbfIMNWG (ORCPT ); Fri, 13 Sep 2019 09:22:06 -0400 Received: from localhost (unknown [104.132.45.99]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id E5DD5214AE; Fri, 13 Sep 2019 13:22:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1568380925; bh=nwfOfhunG20kdXDdjg0VkRIACXc39rf2cOq4NEzaB74=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=0HGTmwiO6363lQiyAQnSVrtTS/xTVB0ukLeMrFv7ZCK27Rk8JY/pgDA5eBeMz9G9k WJBqROkE6Wax4Ai6Vo5rAinUWV1N8tzsf+zPz0YTpWy0IqE+lu4KwpJd9Tmv5j2W9a zvZz1/fj+LvWs+SA8DcT7oxr/OsZQTPX5x8v8RHc= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Peter Chen Subject: [PATCH 5.2 27/37] usb: chipidea: imx: add imx7ulp support Date: Fri, 13 Sep 2019 14:07:32 +0100 Message-Id: <20190913130520.643456140@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20190913130510.727515099@linuxfoundation.org> References: <20190913130510.727515099@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org In this commit, we add CI_HDRC_PMQOS to avoid system entering idle, at imx7ulp, if the system enters idle, the DMA will stop, so the USB transfer can't work at this case. Signed-off-by: Peter Chen --- drivers/usb/chipidea/ci_hdrc_imx.c | 28 +++++++++++++++++++++++++++- drivers/usb/chipidea/usbmisc_imx.c | 4 ++++ include/linux/usb/chipidea.h | 1 + 3 files changed, 32 insertions(+), 1 deletion(-) diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c index ceec8d5985d46..a76708501236d 100644 --- a/drivers/usb/chipidea/ci_hdrc_imx.c +++ b/drivers/usb/chipidea/ci_hdrc_imx.c @@ -13,6 +13,7 @@ #include #include #include +#include #include "ci.h" #include "ci_hdrc_imx.h" @@ -63,6 +64,11 @@ static const struct ci_hdrc_imx_platform_flag imx7d_usb_data = { .flags = CI_HDRC_SUPPORTS_RUNTIME_PM, }; +static const struct ci_hdrc_imx_platform_flag imx7ulp_usb_data = { + .flags = CI_HDRC_SUPPORTS_RUNTIME_PM | + CI_HDRC_PMQOS, +}; + static const struct of_device_id ci_hdrc_imx_dt_ids[] = { { .compatible = "fsl,imx23-usb", .data = &imx23_usb_data}, { .compatible = "fsl,imx28-usb", .data = &imx28_usb_data}, @@ -72,6 +78,7 @@ static const struct of_device_id ci_hdrc_imx_dt_ids[] = { { .compatible = "fsl,imx6sx-usb", .data = &imx6sx_usb_data}, { .compatible = "fsl,imx6ul-usb", .data = &imx6ul_usb_data}, { .compatible = "fsl,imx7d-usb", .data = &imx7d_usb_data}, + { .compatible = "fsl,imx7ulp-usb", .data = &imx7ulp_usb_data}, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, ci_hdrc_imx_dt_ids); @@ -93,6 +100,8 @@ struct ci_hdrc_imx_data { struct clk *clk_ahb; struct clk *clk_per; /* --------------------------------- */ + struct pm_qos_request pm_qos_req; + const struct ci_hdrc_imx_platform_flag *plat_data; }; /* Common functions shared by usbmisc drivers */ @@ -309,6 +318,8 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) if (!data) return -ENOMEM; + data->plat_data = imx_platform_flag; + pdata.flags |= imx_platform_flag->flags; platform_set_drvdata(pdev, data); data->usbmisc_data = usbmisc_get_init_data(dev); if (IS_ERR(data->usbmisc_data)) @@ -369,6 +380,11 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) } } } + + if (pdata.flags & CI_HDRC_PMQOS) + pm_qos_add_request(&data->pm_qos_req, + PM_QOS_CPU_DMA_LATENCY, 0); + ret = imx_get_clks(dev); if (ret) goto disable_hsic_regulator; @@ -396,7 +412,6 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) usb_phy_init(pdata.usb_phy); } - pdata.flags |= imx_platform_flag->flags; if (pdata.flags & CI_HDRC_SUPPORTS_RUNTIME_PM) data->supports_runtime_pm = true; @@ -439,6 +454,8 @@ err_clk: disable_hsic_regulator: if (data->hsic_pad_regulator) ret = regulator_disable(data->hsic_pad_regulator); + if (pdata.flags & CI_HDRC_PMQOS) + pm_qos_remove_request(&data->pm_qos_req); return ret; } @@ -455,6 +472,8 @@ static int ci_hdrc_imx_remove(struct platform_device *pdev) if (data->override_phy_control) usb_phy_shutdown(data->phy); imx_disable_unprepare_clks(&pdev->dev); + if (data->plat_data->flags & CI_HDRC_PMQOS) + pm_qos_remove_request(&data->pm_qos_req); if (data->hsic_pad_regulator) regulator_disable(data->hsic_pad_regulator); @@ -480,6 +499,9 @@ static int __maybe_unused imx_controller_suspend(struct device *dev) } imx_disable_unprepare_clks(dev); + if (data->plat_data->flags & CI_HDRC_PMQOS) + pm_qos_remove_request(&data->pm_qos_req); + data->in_lpm = true; return 0; @@ -497,6 +519,10 @@ static int __maybe_unused imx_controller_resume(struct device *dev) return 0; } + if (data->plat_data->flags & CI_HDRC_PMQOS) + pm_qos_add_request(&data->pm_qos_req, + PM_QOS_CPU_DMA_LATENCY, 0); + ret = imx_prepare_enable_clks(dev); if (ret) return ret; diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c index d8b67e150b129..b7a5727d0c8a8 100644 --- a/drivers/usb/chipidea/usbmisc_imx.c +++ b/drivers/usb/chipidea/usbmisc_imx.c @@ -763,6 +763,10 @@ static const struct of_device_id usbmisc_imx_dt_ids[] = { .compatible = "fsl,imx7d-usbmisc", .data = &imx7d_usbmisc_ops, }, + { + .compatible = "fsl,imx7ulp-usbmisc", + .data = &imx7d_usbmisc_ops, + }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, usbmisc_imx_dt_ids); diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h index 911e05af671ea..edd89b7c8f184 100644 --- a/include/linux/usb/chipidea.h +++ b/include/linux/usb/chipidea.h @@ -61,6 +61,7 @@ struct ci_hdrc_platform_data { #define CI_HDRC_OVERRIDE_PHY_CONTROL BIT(12) /* Glue layer manages phy */ #define CI_HDRC_REQUIRES_ALIGNED_DMA BIT(13) #define CI_HDRC_IMX_IS_HSIC BIT(14) +#define CI_HDRC_PMQOS BIT(15) enum usb_dr_mode dr_mode; #define CI_HDRC_CONTROLLER_RESET_EVENT 0 #define CI_HDRC_CONTROLLER_STOPPED_EVENT 1 -- 2.20.1