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 95B96328B78; Sat, 28 Feb 2026 17:32:49 +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=1772299969; cv=none; b=HyAJ6v8sgaBn5bR8gtECuVZUKiTRWh8AeXn/ju/fynrWD4EDdvv/J43spVZYUNjSAv4CJ5mV3f8N3cI8qSNG/IHWv0w5+FzWtn/fNmKvc3LudydIGZrDOxApmMUofIrftObu0xWQX23ubb8sZrM5VVzUs8KRECBv4vL/fXGvVBI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772299969; c=relaxed/simple; bh=9taDygXBPHFAL+8NwE6jVOboCmH2pLTlGH9WJiMeZew=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=N/sUl/lah0nGj3i+i8qjocCUm4yUo0FBcliSo1fAxx59fi2R/7PV4PJ8XmWFmxvQJiDH1CCh1uuNawlQEKDSR6lNdH3D8LsHijv8gYAO70DGT0paE9+3RTM2Y1f/DFsEWlGjH8+sBFIVj5n7/oyqICKfL3arZGmI4QG/TbrisNg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=WR76vOUc; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="WR76vOUc" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E038BC19423; Sat, 28 Feb 2026 17:32:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772299969; bh=9taDygXBPHFAL+8NwE6jVOboCmH2pLTlGH9WJiMeZew=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WR76vOUcrDpt2e0jkV7hy8NeVketJjy4cZlb8ad/xpjyz/HXya5Eik5mDZ7Bx3kE1 61gIbfnhHX28P3xBIfUuxAnyGYUOvbdahLphC9HjbZdzcpy6/EmsKtXCb/E5qk33+b eDrDiuFRXuVgnLIHOt4uVchsHXjjhqdwtkcjGU1QcpMehAehHZGxZmdnP6N4EXS7wj LXMPENMhlYiaa5YU39F3L9kBYFQFyTJsb3tdCGyb5SzDB7+oWBQg5bbiLo5mDuvemh N38lek+OKH9rK19+EYv8DgTwELNn5PwnPg+lpAgrzEBCaPycXrJo/WFFezTDzBvmSG MDG1AmgvkSQVg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Matthew Schwartz , Greg Kroah-Hartman , Sasha Levin Subject: [PATCH 6.19 002/844] mmc: rtsx_pci_sdmmc: increase power-on settling delay to 5ms Date: Sat, 28 Feb 2026 12:18:35 -0500 Message-ID: <20260228173244.1509663-3-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260228173244.1509663-1-sashal@kernel.org> References: <20260228173244.1509663-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit From: Matthew Schwartz [ Upstream commit aced969e9bf3701dc75cfca57c78c031b7875b9d ] The existing 1ms delay in sd_power_on is insufficient and causes resume errors around 4% of the time. Increasing the delay to 5ms resolves this issue after testing 300 s2idle cycles. Fixes: 1f311c94aabd ("mmc: rtsx: add 74 Clocks in power on flow") Signed-off-by: Matthew Schwartz Link: https://patch.msgid.link/20260105060236.400366-3-matthew.schwartz@linux.dev Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/mmc/host/rtsx_pci_sdmmc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c index 4db3328f46dfb..b6cf1803c7d27 100644 --- a/drivers/mmc/host/rtsx_pci_sdmmc.c +++ b/drivers/mmc/host/rtsx_pci_sdmmc.c @@ -937,7 +937,7 @@ static int sd_power_on(struct realtek_pci_sdmmc *host, unsigned char power_mode) if (err < 0) return err; - mdelay(1); + mdelay(5); err = rtsx_pci_write_register(pcr, CARD_OE, SD_OUTPUT_EN, SD_OUTPUT_EN); if (err < 0) -- 2.51.0