From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E30B830DD13; Tue, 16 Dec 2025 12:18:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765887517; cv=none; b=T/ErdWyMUyjPecBid4IdBtI9TIgjVnNTAcfIO7PWtzzsy36AamMHSJtS+TBGCvx0s7vPjWeSBjCnVvNW1Qrl6101uvxJIB9wtBrdjXZYvyrM5dJNTvBCOi726Wsl0qH2rdqDrQOJVzJF9EqolJcU52SQZSngI03mPgs3DGXb5M0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765887517; c=relaxed/simple; bh=K5NsbN469r2UudrGbyKYZusHV1LOrtxXBCCjQuhkoU8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=KWSSmmT20whGkjlwL4kjxE3sE/xJe6toGbPz2gm3LcswXxhoWHn00sk8y4664QE4ziD8nft24TBZGHSbPKwHD1U/NpWaQSuEIJctAeBvJ3fdZI6bnXuNWm50unrhBR7y08JQGQD34dejpN1MmJPJb9+0lb6IqsIhhk6QMvOBoFQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=IIU8LJje; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="IIU8LJje" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 575DAC4CEF1; Tue, 16 Dec 2025 12:18:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1765887516; bh=K5NsbN469r2UudrGbyKYZusHV1LOrtxXBCCjQuhkoU8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IIU8LJjeMq3AwazyrvsJv6cYTho8CMLmea524TLH0c3wXg7/PKPlimugT7/92S6Uo EbD3CsJPCKbN2Q0DHtVRfAiWSONwltFcp5knwuZ1hkmWbvn6HKgGFCpubXtBs+44E5 W+TFF+c4p229SgZaotBmRRe6iMnb8O1vs1Blzy2Q= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Yeoreum Yun , Mike Leach , James Clark , Leo Yan , Suzuki K Poulose , Sasha Levin Subject: [PATCH 6.18 255/614] coresight: etm4x: Correct polling IDLE bit Date: Tue, 16 Dec 2025 12:10:22 +0100 Message-ID: <20251216111410.613614726@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20251216111401.280873349@linuxfoundation.org> References: <20251216111401.280873349@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Leo Yan [ Upstream commit 4dc4e22f9536341255f5de6047977a80ff47eaef ] Since commit 4ff6039ffb79 ("coresight-etm4x: add isb() before reading the TRCSTATR"), the code has incorrectly been polling the PMSTABLE bit instead of the IDLE bit. This commit corrects the typo. Fixes: 4ff6039ffb79 ("coresight-etm4x: add isb() before reading the TRCSTATR") Reviewed-by: Yeoreum Yun Reviewed-by: Mike Leach Tested-by: James Clark Signed-off-by: Leo Yan Signed-off-by: Suzuki K Poulose Link: https://lore.kernel.org/r/20251111-arm_coresight_power_management_fix-v6-4-f55553b6c8b3@arm.com Signed-off-by: Sasha Levin --- drivers/hwtracing/coresight/coresight-etm4x-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c index 1324b40d54210..c562f82985192 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c @@ -1924,7 +1924,7 @@ static int __etm4_cpu_save(struct etmv4_drvdata *drvdata) state->trcpdcr = etm4x_read32(csa, TRCPDCR); /* wait for TRCSTATR.IDLE to go up */ - if (etm4x_wait_status(csa, TRCSTATR_PMSTABLE_BIT, 1)) { + if (etm4x_wait_status(csa, TRCSTATR_IDLE_BIT, 1)) { dev_err(etm_dev, "timeout while waiting for Idle Trace Status\n"); etm4_os_unlock(drvdata); -- 2.51.0