From 1de76a4535a2d617adeb05070d265e2826af3ad6 Mon Sep 17 00:00:00 2001 From: Robert Marko Date: Tue, 17 Jan 2023 15:08:15 +0100 Subject: [PATCH] arm64: a37xx: pinctrl: probe after binding Currently, pinctrl drivers are getting probed during post-bind, however that is being reverted, and on A37XX pinctrl driver is the one that registers the GPIO driver during the probe. So, if the pinctrl driver doesn't get probed GPIO-s won't get registered and thus they cannot be used. This is a problem on the Methode eDPU as it just uses SB pins as GPIO-s and without them being registered networking won't work as it only has one SFP slot and the TX disable GPIO is on the SB controller. So, lets just add a flag only to A37XX driver to probe after binding in order for the GPIO driver to always get registered. Signed-off-by: Robert Marko Reviewed-by: Simon Glass --- drivers/pinctrl/mvebu/pinctrl-armada-37xx.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c index 25fbe39abd..1be6252227 100644 --- a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c +++ b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c @@ -745,6 +745,19 @@ static int armada_37xx_pinctrl_probe(struct udevice *dev) return 0; } +static int armada_37xx_pinctrl_bind(struct udevice *dev) +{ + /* + * Make sure that the pinctrl driver gets probed after binding + * as on A37XX the pinctrl driver is the one that is also + * registering the GPIO one during probe, so if its not probed + * GPIO-s are not registered as well. + */ + dev_or_flags(dev, DM_FLAG_PROBE_AFTER_BIND); + + return 0; +} + static const struct udevice_id armada_37xx_pinctrl_of_match[] = { { .compatible = "marvell,armada3710-sb-pinctrl", @@ -762,6 +775,7 @@ U_BOOT_DRIVER(armada_37xx_pinctrl) = { .id = UCLASS_PINCTRL, .of_match = of_match_ptr(armada_37xx_pinctrl_of_match), .probe = armada_37xx_pinctrl_probe, + .bind = armada_37xx_pinctrl_bind, .priv_auto = sizeof(struct armada_37xx_pinctrl), .ops = &armada_37xx_pinctrl_ops, }; -- 2.39.5