The patch below does not apply to the 4.14-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 6bb9681a43f34f2cab4aad6e2a02da4ce54d13c5 Mon Sep 17 00:00:00 2001 From: Mans Rullgard mans@mansr.com Date: Wed, 9 Feb 2022 14:54:54 +0000 Subject: [PATCH] net: dsa: lan9303: fix reset on probe
The reset input to the LAN9303 chip is active low, and devicetree gpio handles reflect this. Therefore, the gpio should be requested with an initial state of high in order for the reset signal to be asserted. Other uses of the gpio already use the correct polarity.
Fixes: a1292595e006 ("net: dsa: add new DSA switch driver for the SMSC-LAN9303") Signed-off-by: Mans Rullgard mans@mansr.com Reviewed-by: Andrew Lunn andrew@lunn.ch Reviewed-by: Florian Fianelil f.fainelli@gmail.com Link: https://lore.kernel.org/r/20220209145454.19749-1-mans@mansr.com Signed-off-by: Jakub Kicinski kuba@kernel.org
diff --git a/drivers/net/dsa/lan9303-core.c b/drivers/net/dsa/lan9303-core.c index d55784d19fa4..873a5588171b 100644 --- a/drivers/net/dsa/lan9303-core.c +++ b/drivers/net/dsa/lan9303-core.c @@ -1310,7 +1310,7 @@ static int lan9303_probe_reset_gpio(struct lan9303 *chip, struct device_node *np) { chip->reset_gpio = devm_gpiod_get_optional(chip->dev, "reset", - GPIOD_OUT_LOW); + GPIOD_OUT_HIGH); if (IS_ERR(chip->reset_gpio)) return PTR_ERR(chip->reset_gpio);