This is a note to let you know that I've just added the patch titled
usb: phy: phy-generic: Fix reset behaviour on legacy boot
to the 4.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-phy-phy-generic-fix-reset-behaviour-on-legacy-boot.patch
and it can be found in the queue-4.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 762982db33b23029e98c844611e2e8beeb75bc0d Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@xxxxxx>
Date: Thu, 13 Aug 2015 13:28:42 +0300
Subject: usb: phy: phy-generic: Fix reset behaviour on legacy boot
From: Roger Quadros <rogerq@xxxxxx>
commit 762982db33b23029e98c844611e2e8beeb75bc0d upstream.
The gpio-desc migration done in v4.0 caused a regression
with legacy boots due to reversed reset logic.
e.g. omap3-beagle USB host breaks on legacy boot.
Request the reset GPIO with GPIOF_ACTIVE_LOW flag so that
it matches the driver logic and pin behaviour.
Fixes: e9f2cefb0cdc ("usb: phy: generic: migrate to gpio_desc")
Tested-by: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx>
Signed-off-by: Roger Quadros <rogerq@xxxxxx>
Signed-off-by: Felipe Balbi <balbi@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/phy/phy-generic.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/usb/phy/phy-generic.c
+++ b/drivers/usb/phy/phy-generic.c
@@ -230,7 +230,8 @@ int usb_phy_gen_create_phy(struct device
clk_rate = pdata->clk_rate;
needs_vcc = pdata->needs_vcc;
if (gpio_is_valid(pdata->gpio_reset)) {
- err = devm_gpio_request_one(dev, pdata->gpio_reset, 0,
+ err = devm_gpio_request_one(dev, pdata->gpio_reset,
+ GPIOF_ACTIVE_LOW,
dev_name(dev));
if (!err)
nop->gpiod_reset =
Patches currently in stable-queue which might be from rogerq@xxxxxx are
queue-4.1/usb-xhci-exit-early-in-xhci_setup_device-if-we-re-halted-or-dying.patch
queue-4.1/usb-xhci-clear-xhci_state_dying-on-start.patch
queue-4.1/usb-phy-phy-generic-fix-reset-behaviour-on-legacy-boot.patch
queue-4.1/usb-xhci-lock-mutex-on-xhci_stop.patch
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