From patchwork Sat Aug 22 08:05:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?Q2h1bmZlbmcgWXVuICjkupHmmKXls7Ap?= X-Patchwork-Id: 258793 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=-11.1 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, MIME_BASE64_TEXT, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, UNPARSEABLE_RELAY, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 067F4C433DF for ; Sat, 22 Aug 2020 08:10:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D64B22173E for ; Sat, 22 Aug 2020 08:10:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="PAKp/NoK" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727884AbgHVIJ4 (ORCPT ); Sat, 22 Aug 2020 04:09:56 -0400 Received: from Mailgw01.mediatek.com ([1.203.163.78]:25245 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726999AbgHVIJY (ORCPT ); Sat, 22 Aug 2020 04:09:24 -0400 X-UUID: 1be62bea8d6b471aad3b4896b7ca121a-20200822 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=alOtbDy8sNebdE7u73c0CBOo4U8QiV6rJoaa+rnc/yY=; b=PAKp/NoKXQ7nf8PQscA2+Ynt6kxiZFa7GJk0+gbNZCGou29A39HApQA3VXpymsLtTzOkx5jpRCO7hLZGHPAoVJB9EktKROJ4KAWmpkBvcrT7AMUdbSeBxYHkipSdJTJbTw97dFxXFsiRWPkHXeVVgu/Twk+4efu/DvT6Do3xG+E=; X-UUID: 1be62bea8d6b471aad3b4896b7ca121a-20200822 Received: from mtkcas36.mediatek.inc [(172.27.4.253)] by mailgw01.mediatek.com (envelope-from ) (mailgw01.mediatek.com ESMTP with TLS) with ESMTP id 725116698; Sat, 22 Aug 2020 16:09:16 +0800 Received: from mtkcas08.mediatek.inc (172.21.101.126) by MTKMBS31DR.mediatek.inc (172.27.6.102) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sat, 22 Aug 2020 16:09:16 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas08.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Sat, 22 Aug 2020 16:09:13 +0800 From: Chunfeng Yun To: Greg Kroah-Hartman CC: Felipe Balbi , Matthias Brugger , Chunfeng Yun , , , , , Lee Jones , Sergei Shtylyov Subject: [PATCH v3 08/11] usb: phy-ulpi-viewport: convert to readl_poll_timeout_atomic() Date: Sat, 22 Aug 2020 16:05:50 +0800 Message-ID: <1598083553-31896-8-git-send-email-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty In-Reply-To: <1598083553-31896-1-git-send-email-chunfeng.yun@mediatek.com> References: <1598083553-31896-1-git-send-email-chunfeng.yun@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: DCC594ADF85CB99770292AA43E90FFC70F6299400CE9D63C91AF1884A63E303E2000:8 X-MTK: N Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Use readl_poll_timeout_atomic() to simplify code Signed-off-by: Chunfeng Yun --- v2~v3: no changes --- drivers/usb/phy/phy-ulpi-viewport.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) -- 1.9.1 diff --git a/drivers/usb/phy/phy-ulpi-viewport.c b/drivers/usb/phy/phy-ulpi-viewport.c index 7a14e0e..0f61e32 100644 --- a/drivers/usb/phy/phy-ulpi-viewport.c +++ b/drivers/usb/phy/phy-ulpi-viewport.c @@ -7,6 +7,7 @@ #include #include #include +#include #include #include @@ -20,16 +21,9 @@ static int ulpi_viewport_wait(void __iomem *view, u32 mask) { - unsigned long usec = 2000; + u32 val; - while (usec--) { - if (!(readl(view) & mask)) - return 0; - - udelay(1); - } - - return -ETIMEDOUT; + return readl_poll_timeout_atomic(view, val, !(val & mask), 1, 2000); } static int ulpi_viewport_read(struct usb_phy *otg, u32 reg)