RE: [PATCH 2/3] can: m_can: m_can_platform: Add support for enabling transceiver through the STB line

Signed-off-by: Faiz Abbas <redacted>
---
 drivers/net/can/m_can/m_can_platform.c | 12 ++++++++++++
 1 file changed, 12 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..b4e1423bd5d8 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 -

 #include <linux/platform_device.h>
+#include <linux/gpio/consumer.h>

 #include "m_can.h"

@@ -57,6 +58,7 @@ static int m_can_plat_probe(struct platform_device

{
 	struct m_can_classdev *mcan_class;
 	struct m_can_plat_priv *priv;
+	struct gpio_desc *stb;
 	struct resource *res;
 	void __iomem *addr;
 	void __iomem *mram_addr;

@@ -111,6 +113,16 @@ static int m_can_plat_probe(struct platform_device

*pdev)

 	m_can_init_ram(mcan_class);

+	stb = devm_gpiod_get_optional(&pdev->dev, "stb", GPIOD_OUT_HIGH);
+	if (IS_ERR(stb)) {
+		ret = PTR_ERR(stb);
+		if (ret != -EPROBE_DEFER)
+			dev_err(&pdev->dev,
+				"gpio request failed, ret %d\n", ret);
+
+		goto failed_ret;
+	}
+
 	ret = m_can_class_register(mcan_class);

 failed_ret:
--
2.19.2