From patchwork Thu Jul 23 18:48:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cristian Birsan X-Patchwork-Id: 11681529 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 5DFD913B1 for ; Thu, 23 Jul 2020 18:49:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 409B82086A for ; Thu, 23 Jul 2020 18:49:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b="PNgaix/s" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728255AbgGWStZ (ORCPT ); Thu, 23 Jul 2020 14:49:25 -0400 Received: from esa3.microchip.iphmx.com ([68.232.153.233]:57925 "EHLO esa3.microchip.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728245AbgGWStW (ORCPT ); Thu, 23 Jul 2020 14:49:22 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1595530162; x=1627066162; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=SFBqPVx3z2oefl/XszBXa42k1QB4gR4AFJGweDDyRZ0=; b=PNgaix/sqTetFu2PMYWHEr/ktHbwKu3bJChBG9jmwPy9X+VZDhO75b/I zqoNrHixlEApL8ACnH7H9SGtb0FQ7N1b2sUwBB/pUnk3CqJUtnyvDtT65 0tP2xaibisO5ue7Hkoeo+kq3Hj6RNPgyD1SCxBJ7gDif22rCnMF+QcnCH zwaHReu2E1eXLH2q5oSePl6RXRs8bIkf3C3n7raE1V7qTuYzSHqnNjq6W PkDisoh69Q9OxGfvv5+coWiNs9WJBDDm6aJg2Ch92uH8fvleL1hZNMss/ SMSG/WuJbFHn5YqCtdl6+WvZvNrLo5Z71r0YRiU2HI57xXXLoatZEFamU g==; IronPort-SDR: W3j+fOlYux1bqqgrwfYwhz1kYn2Sd2JfkKlwG5KMDpof5RbRS6EhGImHAbTeUWXccO/l+cTdYk XGuWJw0FVGfczDgX372ZzMnN9yiENJL4qdr/XpfsfAisTfpwIde2aObMJbTzFIf9mwyuAehDrI +Wpj3xXLUsswBL1coCCIh+f8Y2c3FAEyhk5WFY37ziqhJsYd6Y9jweUhhglpA0C4CbIQVjlOE5 8Nzx6VwyNN8QotfEaKc2ffHSwjBAJpNA+F21oY1JAbz6L5XdAIafCyRnfYsNs5QqAvxqdUQFlR lSA= X-IronPort-AV: E=Sophos;i="5.75,387,1589266800"; d="scan'208";a="85153682" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa3.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 23 Jul 2020 11:49:21 -0700 Received: from chn-vm-ex01.mchp-main.com (10.10.85.143) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Thu, 23 Jul 2020 11:48:41 -0700 Received: from cristi-P53.lan (10.10.115.15) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server id 15.1.1979.3 via Frontend Transport; Thu, 23 Jul 2020 11:48:38 -0700 From: To: , , , , , , , , , , CC: Cristian Birsan Subject: [PATCH v4 3/6] usb: gadget: udc: atmel: simplify endpoint allocation Date: Thu, 23 Jul 2020 21:48:59 +0300 Message-ID: <20200723184902.416705-4-cristian.birsan@microchip.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200723184902.416705-1-cristian.birsan@microchip.com> References: <20200723184902.416705-1-cristian.birsan@microchip.com> MIME-Version: 1.0 Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org From: Cristian Birsan Simplify the endpoint allocation and cleanup the code. Signed-off-by: Cristian Birsan --- drivers/usb/gadget/udc/atmel_usba_udc.c | 21 ++++++++------------- drivers/usb/gadget/udc/atmel_usba_udc.h | 1 - 2 files changed, 8 insertions(+), 14 deletions(-) diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c index 4281242b5f9a..10fa72ec8b79 100644 --- a/drivers/usb/gadget/udc/atmel_usba_udc.c +++ b/drivers/usb/gadget/udc/atmel_usba_udc.c @@ -1091,8 +1091,6 @@ static struct usb_ep *atmel_usba_match_ep(struct usb_gadget *gadget, USBA_BF(EPT_SIZE, fls(ep->fifo_size - 1) - 3); ep->ept_cfg |= USBA_BF(BK_NUMBER, ep->nr_banks); - - ep->udc->configured_ep++; } return _ep; @@ -1786,7 +1784,7 @@ static irqreturn_t usba_udc_irq(int irq, void *devid) if (status & USBA_END_OF_RESET) { struct usba_ep *ep0, *ep; - int i, n; + int i; usba_writel(udc, INT_CLR, USBA_END_OF_RESET|USBA_END_OF_RESUME @@ -1834,13 +1832,14 @@ static irqreturn_t usba_udc_irq(int irq, void *devid) "ODD: EP0 configuration is invalid!\n"); /* Preallocate other endpoints */ - n = fifo_mode ? udc->num_ep : udc->configured_ep; - for (i = 1; i < n; i++) { + for (i = 1; i < udc->num_ep; i++) { ep = &udc->usba_ep[i]; - usba_ep_writel(ep, CFG, ep->ept_cfg); - if (!(usba_ep_readl(ep, CFG) & USBA_EPT_MAPPED)) - dev_err(&udc->pdev->dev, - "ODD: EP%d configuration is invalid!\n", i); + if (ep->ep.claimed) { + usba_ep_writel(ep, CFG, ep->ept_cfg); + if (!(usba_ep_readl(ep, CFG) & USBA_EPT_MAPPED)) + dev_err(&udc->pdev->dev, + "ODD: EP%d configuration is invalid!\n", i); + } } } @@ -2025,9 +2024,6 @@ static int atmel_usba_stop(struct usb_gadget *gadget) if (udc->vbus_pin) disable_irq(gpiod_to_irq(udc->vbus_pin)); - if (fifo_mode == 0) - udc->configured_ep = 1; - udc->suspended = false; usba_stop(udc); @@ -2154,7 +2150,6 @@ static struct usba_ep * atmel_udc_of_init(struct platform_device *pdev, if (fifo_mode == 0) { udc->num_ep = udc_config->num_ep; - udc->configured_ep = 1; } else { udc->num_ep = usba_config_fifo_table(udc); } diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.h b/drivers/usb/gadget/udc/atmel_usba_udc.h index 48e332439ed5..a9bf655eb513 100644 --- a/drivers/usb/gadget/udc/atmel_usba_udc.h +++ b/drivers/usb/gadget/udc/atmel_usba_udc.h @@ -336,7 +336,6 @@ struct usba_udc { int irq; struct gpio_desc *vbus_pin; int num_ep; - int configured_ep; struct usba_fifo_cfg *fifo_cfg; struct clk *pclk; struct clk *hclk;