From nobody Tue Dec 16 03:02:17 2025 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.154.123]) (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 2D2FE2E1743; Fri, 31 Oct 2025 12:24:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=68.232.154.123 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761913474; cv=none; b=Fk9WNGtBpKbx2C/iL7jS5iegkwp8KLcdlXug7f2TqLchcCddcbzkuWv1REH3dCi6RxnSWQmkITpLzcPmUeETz2hQxCxi/byi9Qtg2cWrhUUdDRp/MZ1hXY7FN7t31swLx0+2e0FCOKg+fga1jSgo0Fj+sOUu63pfrprfQvcreOg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761913474; c=relaxed/simple; bh=2Nt4r/eYanNf5cDgEn1QKK+iWGBoitcY9r7UXIB3y4g=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=BNbzs1bIsBwveAfKkQ0I0bPfppMussDMVO7y2RzIHOmd0weAd0CQSEg5JCwFgQKWi8cKlhlkrkZY8PdE3Rx7zMgdDaaZB7xRICexDElxj+/GdPgnjnTEtSQVnH1ZjNjLRe4PdPnGV9vQ1i9S8Agd5Cys4HqRLvZg0xMa1LC6Wfs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com; spf=pass smtp.mailfrom=microchip.com; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b=UkUNUh8c; arc=none smtp.client-ip=68.232.154.123 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=microchip.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b="UkUNUh8c" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1761913473; x=1793449473; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=2Nt4r/eYanNf5cDgEn1QKK+iWGBoitcY9r7UXIB3y4g=; b=UkUNUh8c9gg9KCTr5N5Lbd+2H7Zm5767R0FTk9MbCLyASOitbwIxUTku pV5CrCUPPSDZxDgXfPN5izGhjz8CDp9gPd9hIy8pbRgZvYOWRrHPWIRny mQIFa4pKJtYmesgvuMzv/RZohNFnQTgNe+foR5SRfs01ZPwqZEUrW0zi6 la4L0Hc3UmBsdckiC3qrCOPkCU8Dv6jd8MPNOQJqB7za38FQc6ixAHuOf xT2MUyQxvvyjqVPzFJNH5p26blRG9t2BkpyYMUQ9M+Uv3ZOm/mKkXDACG 28dihNVHbsle5+0fRzmOenM3Xw6FzKh5Uoa2BMGSCX5mGmsRVojySHcRf w==; X-CSE-ConnectionGUID: q2s9GN/sQTOoIfDSnWmHng== X-CSE-MsgGUID: tyuglKZiToCp+KniprnHRg== X-IronPort-AV: E=Sophos;i="6.19,269,1754982000"; d="scan'208";a="47883659" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa4.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 Oct 2025 05:24:31 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.87.152) by chn-vm-ex4.mchp-main.com (10.10.87.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.2.2562.29; Fri, 31 Oct 2025 05:23:46 -0700 Received: from DEN-DL-M31836.microchip.com (10.10.85.11) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2507.58 via Frontend Transport; Fri, 31 Oct 2025 05:23:44 -0700 From: Horatiu Vultur To: , , , , , , CC: , , Horatiu Vultur Subject: [PATCH net v4 2/2] net: phy: micrel: lan8842 errata Date: Fri, 31 Oct 2025 13:16:29 +0100 Message-ID: <20251031121629.814935-3-horatiu.vultur@microchip.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20251031121629.814935-1-horatiu.vultur@microchip.com> References: <20251031121629.814935-1-horatiu.vultur@microchip.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add errata for lan8842. The errata document can be found here [1]. This is fixing the module 7 ("1000BASE-T PMA EEE TX wake timer is non-compliant") [1] https://ww1.microchip.com/downloads/aemDocuments/documents/UNG/ProductD= ocuments/Errata/LAN8842-Errata-DS80001172.pdf Fixes: 5a774b64cd6a ("net: phy: micrel: Add support for lan8842") Reviewed-by: Andrew Lunn Signed-off-by: Horatiu Vultur Reviewed-by: Russell King (Oracle) --- drivers/net/phy/micrel.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c index 1fa56d4c17937..6a1a424e3b30f 100644 --- a/drivers/net/phy/micrel.c +++ b/drivers/net/phy/micrel.c @@ -5965,6 +5965,9 @@ static int lan8842_probe(struct phy_device *phydev) =20 #define LAN8814_POWER_MGMT_VAL5 LAN8814_POWER_MGMT_B_C_D =20 +#define LAN8814_EEE_WAKE_TX_TIMER 0x0e +#define LAN8814_EEE_WAKE_TX_TIMER_MAX_VAL 0x1f + static const struct lanphy_reg_data short_center_tap_errata[] =3D { { LAN8814_PAGE_POWER_REGS, LAN8814_POWER_MGMT_MODE_3_ANEG_MDI, @@ -6004,6 +6007,12 @@ static const struct lanphy_reg_data short_center_tap= _errata[] =3D { LAN8814_POWER_MGMT_VAL4 }, }; =20 +static const struct lanphy_reg_data waketx_timer_errata[] =3D { + { LAN8814_PAGE_EEE, + LAN8814_EEE_WAKE_TX_TIMER, + LAN8814_EEE_WAKE_TX_TIMER_MAX_VAL }, +}; + static int lanphy_write_reg_data(struct phy_device *phydev, const struct lanphy_reg_data *data, size_t num) @@ -6022,8 +6031,15 @@ static int lanphy_write_reg_data(struct phy_device *= phydev, =20 static int lan8842_erratas(struct phy_device *phydev) { - return lanphy_write_reg_data(phydev, short_center_tap_errata, + int ret; + + ret =3D lanphy_write_reg_data(phydev, short_center_tap_errata, ARRAY_SIZE(short_center_tap_errata)); + if (ret) + return ret; + + return lanphy_write_reg_data(phydev, waketx_timer_errata, + ARRAY_SIZE(waketx_timer_errata)); } =20 static int lan8842_config_init(struct phy_device *phydev) --=20 2.34.1