This is a note to let you know that I've just added the patch titled

gpio: label descriptors using the device name

to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: gpio-label-descriptors-using-the-device-name.patch and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From foo@baz Mon Apr 9 17:09:24 CEST 2018

From: Linus Walleij linus.walleij@linaro.org Date: Thu, 4 Jan 2018 22:31:11 +0100 Subject: gpio: label descriptors using the device name

From: Linus Walleij linus.walleij@linaro.org

[ Upstream commit 24e78079bf2250874e33da2e7cfbb6db72d3caf4 ]

Some GPIO lines appear named "?" in the lsgpio dump due to their requesting drivers not passing a reasonable label.

Most typically this happens if a device tree node just defines gpios = <...> and not foo-gpios = <...>, the former gets named "foo" and the latter gets named "?".

However the struct device passed in is always valid so let's just label the GPIO with dev_name() on the device if no proper label was passed.

Cc: Reported-by: Jason Kridner jkridner@beagleboard.org Reported-by: Jason Kridner jkridner@beagleboard.org Signed-off-by: Linus Walleij linus.walleij@linaro.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpio/gpiolib.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -3231,7 +3231,8 @@ struct gpio_desc *__must_check gpiod_get return desc; }

- status = gpiod_request(desc, con_id); + /* If a connection label was passed use that, else use the device name as label */ + status = gpiod_request(desc, con_id ? con_id : dev_name(dev)); if (status < 0) return ERR_PTR(status);

Patches currently in stable-queue which might be from linus.walleij@linaro.org are

queue-4.9/gpio-crystalcove-do-not-write-regular-gpio-registers-for-virtual-gpios.patch queue-4.9/gpio-label-descriptors-using-the-device-name.patch queue-4.9/pinctrl-baytrail-enable-glitch-filter-for-gpios-used-as-interrupts.patch queue-4.9/pinctrl-meson-gxbb-remove-non-existing-pin-gpiox_22.patch