From patchwork Tue Jul 12 09:44:36 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Henry Chen X-Patchwork-Id: 9224895 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id BD57D604DB for ; Tue, 12 Jul 2016 09:46:40 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AA66327C38 for ; Tue, 12 Jul 2016 09:46:40 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9CD9627EED; Tue, 12 Jul 2016 09:46:40 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 7B3AA27C38 for ; Tue, 12 Jul 2016 09:46:39 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.85_2 #1 (Red Hat Linux)) id 1bMuFd-0005ql-QE; Tue, 12 Jul 2016 09:45:13 +0000 Received: from [210.61.82.183] (helo=mailgw01.mediatek.com) by bombadil.infradead.org with esmtp (Exim 4.85_2 #1 (Red Hat Linux)) id 1bMuFa-0004dZ-HA; Tue, 12 Jul 2016 09:45:11 +0000 Received: from mtkhts09.mediatek.inc [(172.21.101.70)] by mailgw01.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 396535565; Tue, 12 Jul 2016 17:44:39 +0800 Received: from mtkslt205.mediatek.inc (10.21.15.75) by mtkhts09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 14.3.266.1; Tue, 12 Jul 2016 17:44:38 +0800 From: Henry Chen To: Matthias Brugger Subject: [PATCH] soc: mediatek: PMIC wrap: Extend th wainting time to 10ms. Date: Tue, 12 Jul 2016 17:44:36 +0800 Message-ID: <1468316676-14901-1-git-send-email-henryc.chen@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160712_024510_830715_3F867163 X-CRM114-Status: GOOD ( 10.11 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Henry Chen , Sascha Hauer , linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Read data fails sometimes because of a timeout that PMIC cannot transfer data to PMIC wrap on time, extend the wainting time to 10ms to reduce the failed rate. Signed-off-by: Henry Chen --- drivers/soc/mediatek/mtk-pmic-wrap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c index a003ba2..a5f1093 100644 --- a/drivers/soc/mediatek/mtk-pmic-wrap.c +++ b/drivers/soc/mediatek/mtk-pmic-wrap.c @@ -583,7 +583,7 @@ static int pwrap_wait_for_state(struct pmic_wrapper *wrp, { unsigned long timeout; - timeout = jiffies + usecs_to_jiffies(255); + timeout = jiffies + usecs_to_jiffies(10000); do { if (time_after(jiffies, timeout))