From patchwork Mon Sep 21 06:13:32 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: 11788347 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 CA17C59D for ; Mon, 21 Sep 2020 06:17:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AA50620735 for ; Mon, 21 Sep 2020 06:17:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="oEKDVb1y" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726514AbgIUGRh (ORCPT ); Mon, 21 Sep 2020 02:17:37 -0400 Received: from mailgw02.mediatek.com ([1.203.163.81]:35367 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726427AbgIUGRW (ORCPT ); Mon, 21 Sep 2020 02:17:22 -0400 X-UUID: 7f02da13606d4d42859f4c6eed9e5405-20200921 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=M+jMphpitAdQKmTgncue8DLUuiChzBueaSc64a9GuJ4=; b=oEKDVb1ynNUmgwwumG1tbZhg/AEzW8wczkOk5ummn+zbFmYHaL7LgRZ4yEHKhbCi+YaUZgnsbL0Geggub5OqdjPvF9cod1g+nXqyscNneMZhMQwOyfulLLbQQAHlINpvXCoMYYPFJAxjFhGpZgXi2dX5g+AVUCaJBZABrRYzeSM=; X-UUID: 7f02da13606d4d42859f4c6eed9e5405-20200921 Received: from mtkcas36.mediatek.inc [(172.27.4.253)] by mailgw02.mediatek.com (envelope-from ) (mailgw01.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1933687756; Mon, 21 Sep 2020 14:17:09 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by MTKMBS31DR.mediatek.inc (172.27.6.102) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 21 Sep 2020 14:17:08 +0800 Received: from localhost.localdomain (10.17.3.153) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Mon, 21 Sep 2020 14:17:06 +0800 From: Chunfeng Yun To: Greg Kroah-Hartman , Felipe Balbi CC: Mathias Nyman , Matthias Brugger , Chunfeng Yun , "Eric W. Biederman" , Sumit Garg , Lee Jones , Jann Horn , Jason Yan , Arnd Bergmann , Chuhong Yuan , "Gustavo A. R. Silva" , "Ben Dooks (Codethink)" , Saurav Girepunje , , , , , Sergei Shtylyov , Daniel Thompson Subject: [PATCH v4 08/11] usb: phy-ulpi-viewport: convert to readl_poll_timeout_atomic() Date: Mon, 21 Sep 2020 14:13:32 +0800 Message-ID: <1600668815-12135-8-git-send-email-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty In-Reply-To: <1600668815-12135-1-git-send-email-chunfeng.yun@mediatek.com> References: <1600668815-12135-1-git-send-email-chunfeng.yun@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: EEA5F66F385D1C22FDC9CCE0641F47060E3C27892C8F6ED0949B2FA6AC1DA61E2000:8 X-MTK: N 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~v4: no changes --- drivers/usb/phy/phy-ulpi-viewport.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) 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)