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| author | Marc Kleine-Budde <mkl@pengutronix.de> | 2020-09-22 16:44:16 +0200 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2020-09-22 16:49:54 +0200 |
| commit | 3d60f33a7a7afa7ba02b96ecc835c3450bf234b1 (patch) | |
| tree | 15c06134c3f47d3b066db42b50e383284bfc752b | |
| parent | can: flexcan: Ack wakeup interrupt separately (diff) | |
| download | linux-3d60f33a7a7afa7ba02b96ecc835c3450bf234b1.tar.xz linux-3d60f33a7a7afa7ba02b96ecc835c3450bf234b1.zip | |
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: Marc Kleine-Budde <mkl@pengutronix.de>
Link: https://lore.kernel.org/r/20200922144429.2613631-8-mkl@pengutronix.de
| -rw-r--r-- | drivers/net/can/flexcan.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index 06cddc468739..52b53ff223f4 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -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, |