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 3013235AC3F for ; Sat, 28 Feb 2026 18:19:17 +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=1772302757; cv=none; b=du1OVfl30BRESCtEq6ywVyDA77gNUVeOGj/1ANzdyjSMvHrzV4JOIC40rxx8ibxOL5V1dZ6Oh9f30XqHujdy5/gsGJY0JtuFboQyRUBcTM+Wa8y0FXwkTzYhVpJDEDLr5jcw2JwIfapTlO1zUOxru2emCqm1fFd2Rb7ZXCLLj+k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772302757; c=relaxed/simple; bh=NDkpNOtYNIxErHao3KNP4JcIV6Oy/AyJtoBsWnFHoKk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Dcg69WXNFkOooq/hTNNP6QzHCdlkVaGyiKvWwa8akdds3Af1UNX8tMlVqL9G2iImoyPWFRqpj8mn4TsW1zQIcH/GfoUcrV9P5QQKVa97IHIEPy9u+mioWefoKIBM0BtYcRWQ04Dl0/fDkfU6gbznwWHJOx/GIiZqx4ISXlMvuXo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Y5Mp0JZ5; 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="Y5Mp0JZ5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 67324C19424; Sat, 28 Feb 2026 18:19:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772302756; bh=NDkpNOtYNIxErHao3KNP4JcIV6Oy/AyJtoBsWnFHoKk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Y5Mp0JZ5ZubDCPhOgOmk5SJRFa2qlZ7I5PLLk0f4W/gijglXGfO9U7nTB+If3B4JX c+QSSFT+F0lqdvH/2YuP3rGviW8WEwm5IfdjuQsT08vLaPOrsaaaCtPyVqJpPFpNbK jeAI9hVibDWHk+41KavzHzqC+QzHCc4/TB3wpdPj338uBNFdEBczr3DjlbGE/H8LQm kVDAIe4c4ODCMW8Jdp3W24htnXQpHxTYclEx9NoD1qK1LKGE2TiSmE6TbeDFgiQwSr BF54KobTQLx3nlq8k4gJ0hOOk7STiLaTJc1jgX+7qPdTIs6LLU5eriDGPWhhtO9P7O RQ2JQ3+otpS1g== From: Sasha Levin To: patches@lists.linux.dev Cc: Matthew Schwartz , Greg Kroah-Hartman , Sasha Levin Subject: [PATCH 5.10 126/147] mmc: rtsx_pci_sdmmc: increase power-on settling delay to 5ms Date: Sat, 28 Feb 2026 13:17:14 -0500 Message-ID: <20260228181736.1605592-126-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260228181736.1605592-1-sashal@kernel.org> References: <20260228181736.1605592-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: patches@lists.linux.dev 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 f0e9a76679945..97f194afcc643 100644 --- a/drivers/mmc/host/rtsx_pci_sdmmc.c +++ b/drivers/mmc/host/rtsx_pci_sdmmc.c @@ -932,7 +932,7 @@ 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