[PATCH RFC 3/4] phy: phy-can-transceiver: Add support for Microchip MCP2542

From: Stefan Wahren <wahrenst@gmx.net>
To: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Marc Kleine-Budde <mkl@pengutronix.de>,
	Vincent Mailhol <mailhol@kernel.org>,
	Vinod Koul <vkoul@kernel.org>,
	Neil Armstrong <neil.armstrong@linaro.org>,
	Frank Li <Frank.Li@nxp.com>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	Aswath Govindraju <a-govindraju@ti.com>
Cc: Christoph Stoidner <c.stoidner@phytec.de>,
	linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
	linux-can@vger.kernel.org, linux-phy@lists.infradead.org,
	imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
	Stefan Wahren <wahrenst@gmx.net>
Subject: [PATCH RFC 3/4] phy: phy-can-transceiver: Add support for Microchip MCP2542
Date: Tue, 18 Aug 2026 11:17:00 +0200	[thread overview]
Message-ID: <20260818091701.6441-4-wahrenst@gmx.net> (raw)
In-Reply-To: <20260818091701.6441-1-wahrenst@gmx.net>

The Microchip MCP2542 High-speed CAN transceiver with Sleep mode is a
pin-compatible alternative for the TI TCAN1042.

Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
---
 drivers/phy/phy-can-transceiver.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/phy/phy-can-transceiver.c b/drivers/phy/phy-can-transceiver.c
index 75dc49e75ca0..1606384d4a0e 100644
--- a/drivers/phy/phy-can-transceiver.c
+++ b/drivers/phy/phy-can-transceiver.c
@@ -96,6 +96,10 @@ static const struct can_transceiver_data tja1057_drvdata = {
 	.flags = CAN_TRANSCEIVER_SILENT_PRESENT,
 };
 
+static const struct can_transceiver_data mcp2542_drvdata = {
+	.flags = CAN_TRANSCEIVER_STB_PRESENT,
+};
+
 static struct phy *can_transceiver_phy_xlate(struct device *dev,
 					     const struct of_phandle_args *args)
 {
@@ -238,6 +242,10 @@ static const struct of_device_id can_transceiver_phy_ids[] = {
 		.compatible = "nxp,tjr1443",
 		.data = &tcan1043_drvdata
 	},
+	{
+		.compatible = "microchip,mcp2542",
+		.data = &mcp2542_drvdata
+	},
 	{ }
 };
 MODULE_DEVICE_TABLE(of, can_transceiver_phy_ids);
-- 
2.43.0


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