diff options
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/sprd/pinctrl-sprd.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/pinctrl/sprd/pinctrl-sprd.c b/drivers/pinctrl/sprd/pinctrl-sprd.c index 7b95bf5a82a9..8869843d34e3 100644 --- a/drivers/pinctrl/sprd/pinctrl-sprd.c +++ b/drivers/pinctrl/sprd/pinctrl-sprd.c @@ -484,6 +484,13 @@ static int sprd_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin_id, SLEEP_PULL_UP_MASK) << 16; arg |= (reg >> PULL_UP_SHIFT) & PULL_UP_MASK; break; + case PIN_CONFIG_BIAS_DISABLE: + if ((reg & (SLEEP_PULL_DOWN | SLEEP_PULL_UP)) || + (reg & (PULL_DOWN | PULL_UP_4_7K | PULL_UP_20K))) + return -EINVAL; + + arg = 1; + break; case PIN_CONFIG_SLEEP_HARDWARE_STATE: arg = 0; break; @@ -674,6 +681,16 @@ static int sprd_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin_id, shift = PULL_UP_SHIFT; } break; + case PIN_CONFIG_BIAS_DISABLE: + if (is_sleep_config == true) { + val = shift = 0; + mask = SLEEP_PULL_DOWN | SLEEP_PULL_UP; + } else { + val = shift = 0; + mask = PULL_DOWN | PULL_UP_20K | + PULL_UP_4_7K; + } + break; case PIN_CONFIG_SLEEP_HARDWARE_STATE: continue; default: |