Patch "pinctrl: at91-pio4: fix pull-up/down logic" has been added to the 4.5-stable tree

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

pinctrl: at91-pio4: fix pull-up/down logic

to the 4.5-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:
pinctrl-at91-pio4-fix-pull-up-down-logic.patch
and it can be found in the queue-4.5 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Ludovic Desroches <[email protected]>
Date: Tue, 19 Apr 2016 16:03:45 +0200
Subject: pinctrl: at91-pio4: fix pull-up/down logic

From: Ludovic Desroches <[email protected]>

commit 5305a7b7e860bb40ab226bc7d58019416073948a upstream.

The default configuration of a pin is often with a value in the pull-up/down field at chip reset. So, even if the internal logic of the controller prevents writing a configuration with pull-up and pull-down at the same time, we must ensure explicitly this condition before writing the register.

This was leading to a pull-down condition not taken into account for instance.

---
 drivers/pinctrl/pinctrl-at91-pio4.c |    2 ++
 1 file changed, 2 insertions(+)

@@ -722,9 +722,11 @@ static int atmel_conf_pin_config_group_s
 			break;
 		case PIN_CONFIG_BIAS_PULL_UP:
 			conf |= ATMEL_PIO_PUEN_MASK;
+			conf &= (~ATMEL_PIO_PDEN_MASK);
 			break;
 		case PIN_CONFIG_BIAS_PULL_DOWN:
 			conf |= ATMEL_PIO_PDEN_MASK;
+			conf &= (~ATMEL_PIO_PUEN_MASK);
 			break;
 		case PIN_CONFIG_DRIVE_OPEN_DRAIN:
 			if (arg == 0)

Patches currently in stable-queue which might be from [email protected] are

queue-4.5/pinctrl-at91-pio4-fix-pull-up-down-logic.patch