From nobody Sun Sep 22 06:35:56 2024 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 98B45C433FE for ; Tue, 29 Mar 2022 11:58:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236156AbiC2MAX (ORCPT ); Tue, 29 Mar 2022 08:00:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37730 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236143AbiC2MAU (ORCPT ); Tue, 29 Mar 2022 08:00:20 -0400 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1CDDAE14; Tue, 29 Mar 2022 04:58:36 -0700 (PDT) X-UUID: b97ec908bbb34c78a37cb410d3cc07cb-20220329 X-UUID: b97ec908bbb34c78a37cb410d3cc07cb-20220329 Received: from mtkcas11.mediatek.inc [(172.21.101.40)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 53968561; Tue, 29 Mar 2022 19:58:30 +0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.3; Tue, 29 Mar 2022 19:58:28 +0800 Received: from localhost.localdomain (10.17.3.154) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 29 Mar 2022 19:58:27 +0800 From: Zhiyong Tao To: , , , , , , , , CC: , , , , , , , , , , , , Subject: [PATCH v1 1/1] pwrap: mediatek: fix wait time out issue Date: Tue, 29 Mar 2022 19:58:24 +0800 Message-ID: <20220329115824.13005-2-zhiyong.tao@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20220329115824.13005-1-zhiyong.tao@mediatek.com> References: <20220329115824.13005-1-zhiyong.tao@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: "Zhiyong.Tao" add sleep delay before read "jiffies" Signed-off-by: Zhiyong.Tao --- drivers/soc/mediatek/mtk-pmic-wrap.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) mode change 100644 =3D> 100755 drivers/soc/mediatek/mtk-pmic-wrap.c diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mt= k-pmic-wrap.c old mode 100644 new mode 100755 index 952bc554f443..ac7139a67e87 --- a/drivers/soc/mediatek/mtk-pmic-wrap.c +++ b/drivers/soc/mediatek/mtk-pmic-wrap.c @@ -12,6 +12,7 @@ #include #include #include +#include =20 #define PWRAP_MT8135_BRIDGE_IORD_ARB_EN 0x4 #define PWRAP_MT8135_BRIDGE_WACS3_EN 0x10 @@ -1197,10 +1198,13 @@ static int pwrap_wait_for_state(struct pmic_wrapper= *wrp, timeout =3D jiffies + usecs_to_jiffies(10000); =20 do { - if (time_after(jiffies, timeout)) - return fp(wrp) ? 0 : -ETIMEDOUT; if (fp(wrp)) return 0; + + usleep_range(10, 11); + + if (time_after(jiffies, timeout)) + return fp(wrp) ? 0 : -ETIMEDOUT; } while (1); } =20 --=20 2.18.0