From: Aswath Govindraju Date: Tue, 2 Nov 2021 11:21:20 +0000 (+0530) Subject: phy: phy-can-transceiver: Make devm_gpiod_get optional X-Git-Tag: howlett/maple/20220722_2~1410^2~30^2~56 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=be24d24840ccb6f35ecd866005bf1b9498cddf97;p=users%2Fjedix%2Flinux-maple.git 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 Acked-by: Marc Kleine-Budde Link: https://lore.kernel.org/r/20211102112120.23637-1-a-govindraju@ti.com Signed-off-by: Vinod Koul --- 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;