From nobody Sun Dec 14 06:24:32 2025 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 83F93C00140 for ; Mon, 15 Aug 2022 19:14:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343980AbiHOTOH (ORCPT ); Mon, 15 Aug 2022 15:14:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44234 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343772AbiHOTK6 (ORCPT ); Mon, 15 Aug 2022 15:10:58 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0D4872D1E3; Mon, 15 Aug 2022 11:36:44 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 541C760FB8; Mon, 15 Aug 2022 18:36:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 41674C433C1; Mon, 15 Aug 2022 18:36:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660588603; bh=pI3uyNduvYYNnsYaeYnXFlhkj0Ht3FhepAR6bPI7eQ4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tYEGzWJYyFlg+MIO3ruwqeuS84hgjISWBrIS6T+/cggt8pklQnTToz4HYkdCju7qn LC0dVgfYvEKly+6d6J65x00kSUOSPbnhkduS7PafSes202cZwxf/9k7kWisvs8ZMRM rVvkdQFRmAHwvOVAz/QrHIZ+IWrUAk4mnTFwBhAQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Rajat Jain , Matthias Kaehlcke , Hsin-Yi Wang , Tzung-Bi Shih , Guenter Roeck , Evan Green , Stephen Boyd , Sasha Levin Subject: [PATCH 5.15 426/779] platform/chrome: cros_ec: Always expose last resume result Date: Mon, 15 Aug 2022 20:01:10 +0200 Message-Id: <20220815180355.475816065@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220815180337.130757997@linuxfoundation.org> References: <20220815180337.130757997@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Stephen Boyd [ Upstream commit 74bb746407bf0d7c7d126c7731dbcd66d467619b ] The last resume result exposing logic in cros_ec_sleep_event() incorrectly requires S0ix support, which doesn't work on ARM based systems where S0ix doesn't exist. That's because cros_ec_sleep_event() only reports the last resume result when the EC indicates the last sleep event was an S0ix resume. On ARM systems, the last sleep event is always S3 resume, but the EC can still detect sleep hang events in case some other part of the AP is blocking sleep. Always expose the last resume result if the EC supports it so that this works on all devices regardless of S0ix support. This fixes sleep hang detection on ARM based chromebooks like Trogdor. Cc: Rajat Jain Cc: Matthias Kaehlcke Cc: Hsin-Yi Wang Cc: Tzung-Bi Shih Reviewed-by: Guenter Roeck Reviewed-by: Evan Green Fixes: 7235560ac77a ("platform/chrome: Add support for v1 of host sleep eve= nt") Signed-off-by: Stephen Boyd Signed-off-by: Tzung-Bi Shih Link: https://lore.kernel.org/r/20220614075726.2729987-1-swboyd@chromium.org Signed-off-by: Sasha Levin --- drivers/platform/chrome/cros_ec.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/platform/chrome/cros_ec.c b/drivers/platform/chrome/cr= os_ec.c index ff2a24b0c611..4f0390b10cd3 100644 --- a/drivers/platform/chrome/cros_ec.c +++ b/drivers/platform/chrome/cros_ec.c @@ -135,16 +135,16 @@ static int cros_ec_sleep_event(struct cros_ec_device = *ec_dev, u8 sleep_event) buf.msg.command =3D EC_CMD_HOST_SLEEP_EVENT; =20 ret =3D cros_ec_cmd_xfer_status(ec_dev, &buf.msg); - - /* For now, report failure to transition to S0ix with a warning. */ + /* Report failure to transition to system wide suspend with a warning. */ if (ret >=3D 0 && ec_dev->host_sleep_v1 && - (sleep_event =3D=3D HOST_SLEEP_EVENT_S0IX_RESUME)) { + (sleep_event =3D=3D HOST_SLEEP_EVENT_S0IX_RESUME || + sleep_event =3D=3D HOST_SLEEP_EVENT_S3_RESUME)) { ec_dev->last_resume_result =3D buf.u.resp1.resume_response.sleep_transitions; =20 WARN_ONCE(buf.u.resp1.resume_response.sleep_transitions & EC_HOST_RESUME_SLEEP_TIMEOUT, - "EC detected sleep transition timeout. Total slp_s0 transitions: %d", + "EC detected sleep transition timeout. Total sleep transitions: %d", buf.u.resp1.resume_response.sleep_transitions & EC_HOST_RESUME_SLEEP_TRANSITIONS_MASK); } --=20 2.35.1