diff options
| author | Aswath Govindraju <a-govindraju@ti.com> | 2021-11-02 14:21:20 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2021-11-23 09:45:08 +0300 |
| commit | be24d24840ccb6f35ecd866005bf1b9498cddf97 (patch) | |
| tree | 58be25fb72d0ea9994245270e7737712d2fcc834 /drivers/phy/phy-can-transceiver.c | |
| parent | a463462998777af31995e309617918552983b890 (diff) | |
| download | linux-be24d24840ccb6f35ecd866005bf1b9498cddf97.tar.xz | |
phy: phy-can-transceiver: Make devm_gpiod_get optional
In some cases the standby/enable gpio can be pulled low/high and would not
be connected to a gpio. The current driver implementation will return an
error in these cases. Therefore, make devm_gpiod_get optional.
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Link: https://lore.kernel.org/r/20211102112120.23637-1-a-govindraju@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/phy/phy-can-transceiver.c')
| -rw-r--r-- | drivers/phy/phy-can-transceiver.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/phy/phy-can-transceiver.c b/drivers/phy/phy-can-transceiver.c index c2cb93b4df71..6f3fe37dee0e 100644 --- a/drivers/phy/phy-can-transceiver.c +++ b/drivers/phy/phy-can-transceiver.c @@ -110,14 +110,14 @@ static int can_transceiver_phy_probe(struct platform_device *pdev) can_transceiver_phy->generic_phy = phy; if (drvdata->flags & CAN_TRANSCEIVER_STB_PRESENT) { - standby_gpio = devm_gpiod_get(dev, "standby", GPIOD_OUT_HIGH); + standby_gpio = devm_gpiod_get_optional(dev, "standby", GPIOD_OUT_HIGH); if (IS_ERR(standby_gpio)) return PTR_ERR(standby_gpio); can_transceiver_phy->standby_gpio = standby_gpio; } if (drvdata->flags & CAN_TRANSCEIVER_EN_PRESENT) { - enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW); + enable_gpio = devm_gpiod_get_optional(dev, "enable", GPIOD_OUT_LOW); if (IS_ERR(enable_gpio)) return PTR_ERR(enable_gpio); can_transceiver_phy->enable_gpio = enable_gpio; |