Commit 3d60f33a authored by Marc Kleine-Budde's avatar Marc Kleine-Budde
Browse files

can: flexcan: flexcan_probe(): make regulator xceiver optional 



As the transcevier regulator is optional, this patch switches from
devm_regulator_get() to devm_regulator_get_optional(). This gets rid of "using
dummy regulator" warning message from the regulator core, if no regulator is
available.

Signed-off-by: default avatarMarc Kleine-Budde <mkl@pengutronix.de>
Link: https://lore.kernel.org/r/20200922144429.2613631-8-mkl@pengutronix.de
parent ab60523a

drivers/net/can/flexcan.c

+4 −2
Original line number Diff line number Diff line
@@ -1579,11 +1579,13 @@ static int flexcan_probe(struct platform_device *pdev) 
	u8 clk_src = 1;

	u32 clock_freq = 0;



	reg_xceiver = devm_regulator_get(&pdev->dev, "xceiver");

	reg_xceiver = devm_regulator_get_optional(&pdev->dev, "xceiver");

	if (PTR_ERR(reg_xceiver) == -EPROBE_DEFER)

		return -EPROBE_DEFER;

	else if (IS_ERR(reg_xceiver))

	else if (PTR_ERR(reg_xceiver) == -ENODEV)

		reg_xceiver = NULL;

	else if (IS_ERR(reg_xceiver))

		return PTR_ERR(reg_xceiver);



	if (pdev->dev.of_node) {

		of_property_read_u32(pdev->dev.of_node,