From patchwork Thu May 14 12:38:48 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thierry Reding X-Patchwork-Id: 1290271 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-tegra-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=Not+DOqi; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 49NB1J3bG9z9sPF for ; Thu, 14 May 2020 22:39:00 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726169AbgENMi7 (ORCPT ); Thu, 14 May 2020 08:38:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46360 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1725955AbgENMi7 (ORCPT ); Thu, 14 May 2020 08:38:59 -0400 Received: from mail-wm1-x342.google.com (mail-wm1-x342.google.com [IPv6:2a00:1450:4864:20::342]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 03A72C061A0C; Thu, 14 May 2020 05:38:59 -0700 (PDT) Received: by mail-wm1-x342.google.com with SMTP id w64so151805wmg.4; Thu, 14 May 2020 05:38:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=MmmeNEZrjOkx1Cy+isBz9LxMlDnG3aHp30agruimX6g=; b=Not+DOqiJAhwlYKuU8oWOQK9NW/ToXWF4bQYVipYB5pS9fdcUArbqrJJKIUi03KHOw O/2iU2gJfR7svc+L6yQj/e7WSO2lH6sT6HxlCL55VQGyNsPPeQ7az35X6sjDrxfxM+hX r+7lPVKbMtWmcU+hkab5bQyUgYiiolSXo0ZYpIhTo8lEPMde3y9YRvU57pJMcTYYd3hl zmoHNrLUAlHl9HHs3OIstskWDJOBHj2jko811Hdc2nUEgLKIQWXcy568tHF83tP+esXy Cw0LVZwKqb++tWGyhCKIL1Z/dm8bgxpJfnQXYY5XakTSVRutCO39bD64wizmBnU46/S5 I9Pg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=MmmeNEZrjOkx1Cy+isBz9LxMlDnG3aHp30agruimX6g=; b=dPg2hYo5b3e2fRVOvyYeiexbsaSL4P93sqLOeGbbBC/cxr2aOFmjyhSDletz0Z8L/+ C4gGT9T2yxcwmHPZmdaDgtvuYAYlKsFOqk91WPhHhCRCweXvqALpAIuwGxtN6b+xdtTl 2F+qkp4bzP9BzdqaO99SChL9F9udBvZhS6O4YV26EDTFHf/92jm2x15iGX4gjhE/5Bwm eYIip1qvJwU8UXnpUzwr8W5TfKHVf/cmfAf+8T5Jf5x9AAnIp3YPll7lyBUfPbANM/Yy 584MxjEyKYE5fDY+6iYNArdMXPLb0kRKsYm6/u5Xn2HwwZe36VqcGGgQlA9HpMVBC7PJ vxQA== X-Gm-Message-State: AGi0PuZY2EZ/6Ic3ucgOkMmC3+QelmCFArQaE3II/M+ZJD3ZvWrNflk0 lr+Z3ZgUMkeNAn107alHLqkDBWy/ X-Google-Smtp-Source: APiQypIVDLtiquGPj4wJVqRcDwOwEPpLZpE1TaanWgY1lWPgqx7aIFcF2EZYU32+G/5D65PV3yc+Hw== X-Received: by 2002:a1c:6506:: with SMTP id z6mr19493129wmb.104.1589459937744; Thu, 14 May 2020 05:38:57 -0700 (PDT) Received: from localhost (pD9E51079.dip0.t-ipconnect.de. [217.229.16.121]) by smtp.gmail.com with ESMTPSA id y4sm3673729wro.91.2020.05.14.05.38.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 May 2020 05:38:56 -0700 (PDT) From: Thierry Reding To: "David S. Miller" Cc: Hayes Wang , Jakub Kicinski , linux-usb@vger.kernel.org, netdev@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH net/next] r8152: Use MAC address from device tree if available Date: Thu, 14 May 2020 14:38:48 +0200 Message-Id: <20200514123848.933199-1-thierry.reding@gmail.com> X-Mailer: git-send-email 2.24.1 MIME-Version: 1.0 Sender: linux-tegra-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org From: Thierry Reding If a MAC address was passed via the device tree node for the r8152 device, use it and fall back to reading from EEPROM otherwise. This is useful for devices where the r8152 EEPROM was not programmed with a valid MAC address, or if users want to explicitly set a MAC address in the bootloader and pass that to the kernel. Signed-off-by: Thierry Reding --- drivers/net/usb/r8152.c | 22 +++++++++++++--------- 1 file changed, 13 insertions(+), 9 deletions(-) diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 8f8d9883d363..1af72ec284ca 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -1504,15 +1504,19 @@ static int determine_ethernet_addr(struct r8152 *tp, struct sockaddr *sa) sa->sa_family = dev->type; - if (tp->version == RTL_VER_01) { - ret = pla_ocp_read(tp, PLA_IDR, 8, sa->sa_data); - } else { - /* if device doesn't support MAC pass through this will - * be expected to be non-zero - */ - ret = vendor_mac_passthru_addr_read(tp, sa); - if (ret < 0) - ret = pla_ocp_read(tp, PLA_BACKUP, 8, sa->sa_data); + ret = eth_platform_get_mac_address(&dev->dev, sa->sa_data); + if (ret < 0) { + if (tp->version == RTL_VER_01) { + ret = pla_ocp_read(tp, PLA_IDR, 8, sa->sa_data); + } else { + /* if device doesn't support MAC pass through this will + * be expected to be non-zero + */ + ret = vendor_mac_passthru_addr_read(tp, sa); + if (ret < 0) + ret = pla_ocp_read(tp, PLA_BACKUP, 8, + sa->sa_data); + } } if (ret < 0) {