From patchwork Mon Feb 17 14:28:35 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Faiz Abbas X-Patchwork-Id: 1239266 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=ti.com header.i=@ti.com header.a=rsa-sha256 header.s=ti-com-17Q1 header.b=mUDo/OGX; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 48LmXh6yvBz9sRl for ; Tue, 18 Feb 2020 01:27:32 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728999AbgBQO13 (ORCPT ); Mon, 17 Feb 2020 09:27:29 -0500 Received: from lelv0143.ext.ti.com ([198.47.23.248]:42986 "EHLO lelv0143.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728848AbgBQO1W (ORCPT ); Mon, 17 Feb 2020 09:27:22 -0500 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id 01HER5ni084812; Mon, 17 Feb 2020 08:27:05 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1581949625; bh=MOTssjoB0GIV30lVcJaxAIVOL5DWVb4N01J+ze4pt64=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=mUDo/OGXVlzNFKGwEW1rIXWQYkfjSOHuH6Y8MLHM+cBsMqpHIOK6N55zKAoed6SmJ jXyevT2SOpBJR8jlfS62LsumwBhpZ/IvXVU0YEDdP8cJTztFPTn9EQCq3oZR2AvVJy RnwmPPjW6rFF/q+IblegAJ/i7bgvA37Q/0oEnjkQ= Received: from DFLE111.ent.ti.com (dfle111.ent.ti.com [10.64.6.32]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 01HER4Un117386 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 17 Feb 2020 08:27:05 -0600 Received: from DFLE101.ent.ti.com (10.64.6.22) by DFLE111.ent.ti.com (10.64.6.32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Mon, 17 Feb 2020 08:27:03 -0600 Received: from lelv0326.itg.ti.com (10.180.67.84) by DFLE101.ent.ti.com (10.64.6.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Mon, 17 Feb 2020 08:27:04 -0600 Received: from a0230074-OptiPlex-7010.india.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id 01HEQoJN033875; Mon, 17 Feb 2020 08:26:59 -0600 From: Faiz Abbas To: , , , , CC: , , , , , , , , , Subject: [PATCH v2 2/3] can: m_can: m_can_platform: Add support for enabling transceiver Date: Mon, 17 Feb 2020 19:58:35 +0530 Message-ID: <20200217142836.23702-3-faiz_abbas@ti.com> X-Mailer: git-send-email 2.19.2 In-Reply-To: <20200217142836.23702-1-faiz_abbas@ti.com> References: <20200217142836.23702-1-faiz_abbas@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org CAN transceivers on some boards have a standby line which can be toggled to enable/disable the transceiver. Model this as an optional fixed xceiver regulator. Signed-off-by: Faiz Abbas Acked-by: Sriram Dash --- drivers/net/can/m_can/m_can_platform.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/can/m_can/m_can_platform.c b/drivers/net/can/m_can/m_can_platform.c index 38ea5e600fb8..719468fab507 100644 --- a/drivers/net/can/m_can/m_can_platform.c +++ b/drivers/net/can/m_can/m_can_platform.c @@ -6,6 +6,7 @@ // Copyright (C) 2018-19 Texas Instruments Incorporated - http://www.ti.com/ #include +#include #include "m_can.h" @@ -57,6 +58,7 @@ static int m_can_plat_probe(struct platform_device *pdev) { struct m_can_classdev *mcan_class; struct m_can_plat_priv *priv; + struct regulator *reg_xceiver; struct resource *res; void __iomem *addr; void __iomem *mram_addr; @@ -111,6 +113,10 @@ static int m_can_plat_probe(struct platform_device *pdev) m_can_init_ram(mcan_class); + reg_xceiver = devm_regulator_get_optional(&pdev->dev, "xceiver"); + if (PTR_ERR(reg_xceiver) == -EPROBE_DEFER) + return -EPROBE_DEFER; + ret = m_can_class_register(mcan_class); failed_ret: