From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 9A2B651CF51; Wed, 30 Sep 2026 18:25:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790792730; cv=none; b=YHHRLen+D35/+1wHfMCZQeMXrDrkIpPD58CuJph0d9aoDWi7bbNzfg81tgOmZgaopdqKWg6k1sG1ctYK0audoQMWLBo5TBj9yrLxo7pbAYa0OUg6XW61+QF7d5YnTe469WjLHoR7yHJtavmoXaoOx5pVecRrqozHdGvd7j1nFDY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790792730; c=relaxed/simple; bh=xPFtBG29Td4gl6VqQeoDlxakxJ7SDF4y6CeoQfFUwrY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=WiSinPmF6Y1hA7FBDuzRw8TJbAUvXD8wdWVy1mSINeUbb28kUwcVrlXvew+T4eAM0XdBxVtb4NwEI84wu87PFG/FPOUolYqKT8o64jopV9MenkYghCkY51v5t/KIuNn1hL1o6Z3nzfRCfaR2U6fVVVfPUJb1D6oPXd8riZnVlOY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=LtQDmJfL; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="LtQDmJfL" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F32081F000FF; Wed, 30 Sep 2026 18:25:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1790792729; bh=FevpGgi6nbCXHikTk7i3syCK64GPaT1TsOvvri5OXLs=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=LtQDmJfLePDKH/Jx/9r97M/2ewwtTPhYEJQ6fb/226DgcER7Vqk7ICg4WanyoVDa4 WPTFjcajrEJIn/uXtD9RgxPghAo+6d+2174P1N+bsZixXfunnJz1OvWratGfdBzlJr f2AqBNuGVAA/83dD9ThL0qhWmlS+jseBPkf2Qa4U= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Simon Horman , Rengarajan S , Jakub Kicinski , =?UTF-8?q?Minh=20Ti=E1=BA=BFn=20Nguy=E1=BB=85n?= Subject: [PATCH 5.15 751/752] lan78xx: Enable Auto Speed and Auto Duplex configuration for LAN7801 if NO EEPROM is detected Date: Wed, 30 Sep 2026 17:30:21 +0200 Message-ID: <20260930152414.466566724@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260930152358.131179731@linuxfoundation.org> References: <20260930152358.131179731@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-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Rengarajan S commit 799f532de13601f91ecb9cc6169d45d6e6933b0f upstream. Enabled ASD/ADD configuration for LAN7801 in the absence of EEPROM. After the lite reset these contents go back to defaults where ASD/ ADD is disabled. The check is already available for LAN7800. Reviewed-by: Simon Horman Signed-off-by: Rengarajan S Link: https://lore.kernel.org/r/20240529140256.1849764-3-rengarajan.s@microchip.com Signed-off-by: Jakub Kicinski Cc: Minh Tiến Nguyễn Signed-off-by: Greg Kroah-Hartman --- drivers/net/usb/lan78xx.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) --- a/drivers/net/usb/lan78xx.c +++ b/drivers/net/usb/lan78xx.c @@ -2894,8 +2894,11 @@ static int lan78xx_reset(struct lan78xx_ return ret; /* LAN7801 only has RGMII mode */ - if (dev->chipid == ID_REV_CHIP_ID_7801_) + if (dev->chipid == ID_REV_CHIP_ID_7801_) { buf &= ~MAC_CR_GMII_EN_; + /* Enable Auto Duplex and Auto speed */ + buf |= MAC_CR_AUTO_DUPLEX_ | MAC_CR_AUTO_SPEED_; + } if (dev->chipid == ID_REV_CHIP_ID_7800_ || dev->chipid == ID_REV_CHIP_ID_7850_) {