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authorAswath Govindraju <a-govindraju@ti.com>2021-11-02 14:21:20 +0300
committerVinod Koul <vkoul@kernel.org>2021-11-23 09:45:08 +0300
commitbe24d24840ccb6f35ecd866005bf1b9498cddf97 (patch)
tree58be25fb72d0ea9994245270e7737712d2fcc834 /drivers/phy/phy-can-transceiver.c
parenta463462998777af31995e309617918552983b890 (diff)
downloadlinux-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.c4
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;