From patchwork Mon Jul 12 06:04:11 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 475852 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2405EC11F78 for ; Mon, 12 Jul 2021 07:03:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 124BB6140F for ; Mon, 12 Jul 2021 07:03:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242201AbhGLHG0 (ORCPT ); Mon, 12 Jul 2021 03:06:26 -0400 Received: from mail.kernel.org ([198.145.29.99]:39838 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241614AbhGLHEB (ORCPT ); Mon, 12 Jul 2021 03:04:01 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 8DA46611AD; Mon, 12 Jul 2021 07:01:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1626073273; bh=Pq4EhHKMvQqR0dTi44tWCX6DB7KbvPxZSq5FW7Mm8F4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=M5P3VjxoXh8yuhKrYgycGVxu3INTAsE5hYheMy1ygRTzqLbIH4WHq8d8EXctHr1Ce 1e2ZECOLyylt3RqIW7O4nEj8AT6m8o29ppem3sFbOfQmCyR16Z1/1+KylJmYzo5v9g fHYNJZJz20UK400gICo3KpnTHdNiKiSZb+92/GPc= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Joel Stanley , Andrew Jeffery , Ulf Hansson , Sasha Levin Subject: [PATCH 5.12 168/700] mmc: sdhci-of-aspeed: Turn down a phase correction warning Date: Mon, 12 Jul 2021 08:04:11 +0200 Message-Id: <20210712060949.659222662@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210712060924.797321836@linuxfoundation.org> References: <20210712060924.797321836@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Andrew Jeffery [ Upstream commit a7ab186f60785850b5af1be183867000485ad491 ] The card timing and the bus frequency are not changed atomically with respect to calls to the set_clock() callback in the driver. The result is the driver sees a transient state where there's a mismatch between the two and thus the inputs to the phase correction calculation formula are garbage. Switch from dev_warn() to dev_dbg() to avoid noise in the normal case, though the change does make bad configurations less likely to be noticed. Reported-by: Joel Stanley Signed-off-by: Andrew Jeffery Reviewed-by: Joel Stanley Link: https://lore.kernel.org/r/20210607013020.85885-1-andrew@aj.id.au Signed-off-by: Ulf Hansson Signed-off-by: Sasha Levin --- drivers/mmc/host/sdhci-of-aspeed.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/host/sdhci-of-aspeed.c b/drivers/mmc/host/sdhci-of-aspeed.c index 7d8692e90996..b6ac2af199b8 100644 --- a/drivers/mmc/host/sdhci-of-aspeed.c +++ b/drivers/mmc/host/sdhci-of-aspeed.c @@ -150,7 +150,7 @@ static int aspeed_sdhci_phase_to_tap(struct device *dev, unsigned long rate_hz, tap = div_u64(phase_period_ps, prop_delay_ps); if (tap > ASPEED_SDHCI_NR_TAPS) { - dev_warn(dev, + dev_dbg(dev, "Requested out of range phase tap %d for %d degrees of phase compensation at %luHz, clamping to tap %d\n", tap, phase_deg, rate_hz, ASPEED_SDHCI_NR_TAPS); tap = ASPEED_SDHCI_NR_TAPS;