From patchwork Thu May 14 06:22:37 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nagarjuna Kristam X-Patchwork-Id: 11548017 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 6931960D for ; Thu, 14 May 2020 06:23:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 536C520758 for ; Thu, 14 May 2020 06:23:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="Ut8CN91E" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726108AbgENGW7 (ORCPT ); Thu, 14 May 2020 02:22:59 -0400 Received: from hqnvemgate26.nvidia.com ([216.228.121.65]:11588 "EHLO hqnvemgate26.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726097AbgENGW5 (ORCPT ); Thu, 14 May 2020 02:22:57 -0400 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate26.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Wed, 13 May 2020 23:22:45 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Wed, 13 May 2020 23:22:57 -0700 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Wed, 13 May 2020 23:22:57 -0700 Received: from HQMAIL111.nvidia.com (172.20.187.18) by HQMAIL105.nvidia.com (172.20.187.12) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Thu, 14 May 2020 06:22:57 +0000 Received: from rnnvemgw01.nvidia.com (10.128.109.123) by HQMAIL111.nvidia.com (172.20.187.18) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Thu, 14 May 2020 06:22:57 +0000 Received: from nkristam-ubuntu.nvidia.com (Not Verified[10.19.67.128]) by rnnvemgw01.nvidia.com with Trustwave SEG (v7,5,8,10121) id ; Wed, 13 May 2020 23:22:56 -0700 From: Nagarjuna Kristam To: , , , , , , CC: , , , , Nagarjuna Kristam Subject: [PATCH V3 2/8] usb: gadget: tegra-xudc: Add vbus_draw support Date: Thu, 14 May 2020 11:52:37 +0530 Message-ID: <1589437363-16727-3-git-send-email-nkristam@nvidia.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1589437363-16727-1-git-send-email-nkristam@nvidia.com> References: <1589437363-16727-1-git-send-email-nkristam@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1589437365; bh=QIrSOgashcQZQOkj7X99YKOXC+8KTj9YocqUEBpgy58=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:X-NVConfidentiality:MIME-Version: Content-Type; b=Ut8CN91E2PDKeQel9ydmny52SrssCT1d4y7wJP6d3rH/9LFrlcNgdzBkHvEqMKPWw EiKi5d56kgCZKs/dznixgvYu05DSG321YjAKhxmLoMzePUWguRSkw/59+yMCOLYx1J idH88urf8ZslpkFFXfiYrQI17jei6LFOE1L6OUwkwElapXWxc7o66qJRJOMOvPpk5g bCI3hdDpF/uOlxCWYZfEAKXwhD0mfG9Wi4Y7ryBag+nMsg1fE9u3ptOQj9ynRl93QE A1/GLHTyYOL05a453AHkWx4YtP8mHzF/5DCF29zZG1xLg/t1SwpNGz4Qoksev/ojm+ QuHwkssmUbE6Q== Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Register vbus_draw to gadget ops and update corresponding vbus draw current to usb_phy. Signed-off-by: Nagarjuna Kristam Acked-by: Thierry Reding --- V3: - Propogated usb_phy->set_power error to vbus_draw caller. --- V2: - Patch re-based. --- drivers/usb/gadget/udc/tegra-xudc.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/usb/gadget/udc/tegra-xudc.c b/drivers/usb/gadget/udc/tegra-xudc.c index 52a6add..53e2d1c 100644 --- a/drivers/usb/gadget/udc/tegra-xudc.c +++ b/drivers/usb/gadget/udc/tegra-xudc.c @@ -492,6 +492,7 @@ struct tegra_xudc { bool powergated; struct usb_phy **usbphy; + struct usb_phy *curr_usbphy; struct notifier_block vbus_nb; struct completion disconnect_complete; @@ -719,6 +720,7 @@ static int tegra_xudc_vbus_notify(struct notifier_block *nb, if (!xudc->suspended && phy_index != -1) { xudc->curr_utmi_phy = xudc->utmi_phy[phy_index]; xudc->curr_usb3_phy = xudc->usb3_phy[phy_index]; + xudc->curr_usbphy = usbphy; schedule_work(&xudc->usb_role_sw_work); } @@ -2042,6 +2044,20 @@ static int tegra_xudc_gadget_stop(struct usb_gadget *gadget) return 0; } +static int tegra_xudc_gadget_vbus_draw(struct usb_gadget *gadget, + unsigned int m_a) +{ + int ret = 0; + struct tegra_xudc *xudc = to_xudc(gadget); + + dev_dbg(xudc->dev, "%s: %u mA\n", __func__, m_a); + + if (xudc->curr_usbphy->chg_type == SDP_TYPE) + ret = usb_phy_set_power(xudc->curr_usbphy, m_a); + + return ret; +} + static int tegra_xudc_set_selfpowered(struct usb_gadget *gadget, int is_on) { struct tegra_xudc *xudc = to_xudc(gadget); @@ -2058,6 +2074,7 @@ static struct usb_gadget_ops tegra_xudc_gadget_ops = { .pullup = tegra_xudc_gadget_pullup, .udc_start = tegra_xudc_gadget_start, .udc_stop = tegra_xudc_gadget_stop, + .vbus_draw = tegra_xudc_gadget_vbus_draw, .set_selfpowered = tegra_xudc_set_selfpowered, };