This is a note to let you know that I've just added the patch titled
Bluetooth: hci_bcm: Make shutdown and device wake GPIO optional
to the 4.15-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:
bluetooth-hci_bcm-make-shutdown-and-device-wake-gpio-optional.patch
and it can be found in the queue-4.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From ab2f336cb7e629de74d8af06bcaf6b15e4230e19 Mon Sep 17 00:00:00 2001
From: Stefan Wahren <stefan.wahren@xxxxxxxx>
Date: Sun, 25 Feb 2018 15:10:52 +0100
Subject: Bluetooth: hci_bcm: Make shutdown and device wake GPIO optional
From: Stefan Wahren <stefan.wahren@xxxxxxxx>
commit ab2f336cb7e629de74d8af06bcaf6b15e4230e19 upstream.
According to the devicetree binding the shutdown and device wake
GPIOs are optional. Since commit 3e81a4ca51a1 ("Bluetooth: hci_bcm:
Mandate presence of shutdown and device wake GPIO") this driver
won't probe anymore on Raspberry Pi 3 and Zero W (no device wake GPIO
connected). So fix this regression by reverting this commit partially.
Fixes: 3e81a4ca51a1 ("Bluetooth: hci_bcm: Mandate presence of shutdown and device wake GPIO")
Signed-off-by: Stefan Wahren <stefan.wahren@xxxxxxxx>
Reviewed-by: Lukas Wunner <lukas@xxxxxxxxx>
Signed-off-by: Marcel Holtmann <marcel@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/bluetooth/hci_bcm.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
--- a/drivers/bluetooth/hci_bcm.c
+++ b/drivers/bluetooth/hci_bcm.c
@@ -775,12 +775,13 @@ static int bcm_get_resources(struct bcm_
dev->clk = devm_clk_get(dev->dev, NULL);
- dev->device_wakeup = devm_gpiod_get(dev->dev, "device-wakeup",
- GPIOD_OUT_LOW);
+ dev->device_wakeup = devm_gpiod_get_optional(dev->dev, "device-wakeup",
+ GPIOD_OUT_LOW);
if (IS_ERR(dev->device_wakeup))
return PTR_ERR(dev->device_wakeup);
- dev->shutdown = devm_gpiod_get(dev->dev, "shutdown", GPIOD_OUT_LOW);
+ dev->shutdown = devm_gpiod_get_optional(dev->dev, "shutdown",
+ GPIOD_OUT_LOW);
if (IS_ERR(dev->shutdown))
return PTR_ERR(dev->shutdown);
Patches currently in stable-queue which might be from stefan.wahren@xxxxxxxx are
queue-4.15/bluetooth-hci_bcm-make-shutdown-and-device-wake-gpio-optional.patch