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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: , , , , 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200217_062713_984347_3F578B52 X-CRM114-Status: GOOD ( 11.34 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, catalin.marinas@arm.com, sriram.dash@samsung.com, lgirdwood@gmail.com, robh+dt@kernel.org, faiz_abbas@ti.com, broonie@kernel.org, mkl@pengutronix.de, dmurphy@ti.com, wg@grandegger.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.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: -- 2.19.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel