diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pinctrl/intel/pinctrl-cherryview.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c index bf65c948b31d..7b3f147279c8 100644 --- a/drivers/pinctrl/intel/pinctrl-cherryview.c +++ b/drivers/pinctrl/intel/pinctrl-cherryview.c @@ -1108,6 +1108,27 @@ static int chv_config_set_pull(struct chv_pinctrl *pctrl, unsigned pin, return 0; } +static int chv_config_set_oden(struct chv_pinctrl *pctrl, unsigned int pin, + bool enable) +{ + void __iomem *reg = chv_padreg(pctrl, pin, CHV_PADCTRL1); + unsigned long flags; + u32 ctrl1; + + raw_spin_lock_irqsave(&chv_lock, flags); + ctrl1 = readl(reg); + + if (enable) + ctrl1 |= CHV_PADCTRL1_ODEN; + else + ctrl1 &= ~CHV_PADCTRL1_ODEN; + + chv_writel(ctrl1, reg); + raw_spin_unlock_irqrestore(&chv_lock, flags); + + return 0; +} + static int chv_config_set(struct pinctrl_dev *pctldev, unsigned pin, unsigned long *configs, unsigned nconfigs) { @@ -1132,6 +1153,18 @@ static int chv_config_set(struct pinctrl_dev *pctldev, unsigned pin, return ret; break; + case PIN_CONFIG_DRIVE_PUSH_PULL: + ret = chv_config_set_oden(pctrl, pin, false); + if (ret) + return ret; + break; + + case PIN_CONFIG_DRIVE_OPEN_DRAIN: + ret = chv_config_set_oden(pctrl, pin, true); + if (ret) + return ret; + break; + default: return -ENOTSUPP; } |