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A single last pin control fix for v4.6:

Browse Source 
- The pull up/down logic for the AT91 PIO4 controller was tilted:
   we need to mask the reverse pull when unmasking a pull direction.
   Setting both pull up & pull down is illegal and makes no sense.
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Merge tag 'pinctrl-v4.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pinctrl fix from Linus Walleij:
 "A single last pin control fix for v4.6.  t's tagged for stable and
  only hits a single driver with two added lines so should be safe.
  Tested in linux-next.

   - The pull up/down logic for the AT91 PIO4 controller was tilted: we
     need to mask the reverse pull when unmasking a pull direction.

     Setting both pull up & pull down is illegal and makes no sense"

* tag 'pinctrl-v4.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: at91-pio4: fix pull-up/down logic
This commit is contained in:
Linus Torvalds 2016-05-12 11:23:08 -07:00
commit 422ce5a975
1 changed files with 2 additions and 0 deletions
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2
drivers/pinctrl/pinctrl-at91-pio4.c
View File

@ -722,9 +722,11 @@ static int atmel_conf_pin_config_group_set(struct pinctrl_dev *pctldev,
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)