diff options
Diffstat (limited to 'drivers/pinctrl/intel/pinctrl-baytrail.c')
| -rw-r--r-- | drivers/pinctrl/intel/pinctrl-baytrail.c | 42 |
1 files changed, 21 insertions, 21 deletions
diff --git a/drivers/pinctrl/intel/pinctrl-baytrail.c b/drivers/pinctrl/intel/pinctrl-baytrail.c index f1af21dbd5fb..291f0454257b 100644 --- a/drivers/pinctrl/intel/pinctrl-baytrail.c +++ b/drivers/pinctrl/intel/pinctrl-baytrail.c @@ -829,6 +829,24 @@ static int byt_set_pull_strength(u32 *reg, u16 strength) return 0; } +static void byt_gpio_force_input_mode(struct intel_pinctrl *vg, unsigned int offset) +{ + void __iomem *reg = byt_gpio_reg(vg, offset, BYT_VAL_REG); + u32 value; + + value = readl(reg); + if (!(value & BYT_INPUT_EN)) + return; + + /* + * Pull assignment is only applicable in input mode. If + * chip is not in input mode, set it and warn about it. + */ + value &= ~BYT_INPUT_EN; + writel(value, reg); + dev_warn(vg->dev, "Pin %i: forcibly set to input mode\n", offset); +} + static int byt_pin_config_get(struct pinctrl_dev *pctl_dev, unsigned int offset, unsigned long *config) { @@ -919,9 +937,8 @@ static int byt_pin_config_set(struct pinctrl_dev *pctl_dev, { struct intel_pinctrl *vg = pinctrl_dev_get_drvdata(pctl_dev); void __iomem *conf_reg = byt_gpio_reg(vg, offset, BYT_CONF0_REG); - void __iomem *val_reg = byt_gpio_reg(vg, offset, BYT_VAL_REG); void __iomem *db_reg = byt_gpio_reg(vg, offset, BYT_DEBOUNCE_REG); - u32 conf, val, db_pulse, debounce; + u32 conf, db_pulse, debounce; enum pin_config_param param; unsigned long flags; int i, ret = 0; @@ -930,7 +947,6 @@ static int byt_pin_config_set(struct pinctrl_dev *pctl_dev, raw_spin_lock_irqsave(&byt_lock, flags); conf = readl(conf_reg); - val = readl(val_reg); for (i = 0; i < num_configs; i++) { param = pinconf_to_config_param(configs[i]); @@ -945,15 +961,7 @@ static int byt_pin_config_set(struct pinctrl_dev *pctl_dev, if (arg == 1) arg = 2000; - /* - * Pull assignment is only applicable in input mode. If - * chip is not in input mode, set it and warn about it. - */ - if (val & BYT_INPUT_EN) { - val &= ~BYT_INPUT_EN; - writel(val, val_reg); - dev_warn(vg->dev, "Pin %i: forcibly set to input mode\n", offset); - } + byt_gpio_force_input_mode(vg, offset); conf &= ~BYT_PULL_ASSIGN_MASK; conf |= BYT_PULL_ASSIGN_DOWN; @@ -965,15 +973,7 @@ static int byt_pin_config_set(struct pinctrl_dev *pctl_dev, if (arg == 1) arg = 2000; - /* - * Pull assignment is only applicable in input mode. If - * chip is not in input mode, set it and warn about it. - */ - if (val & BYT_INPUT_EN) { - val &= ~BYT_INPUT_EN; - writel(val, val_reg); - dev_warn(vg->dev, "Pin %i: forcibly set to input mode\n", offset); - } + byt_gpio_force_input_mode(vg, offset); conf &= ~BYT_PULL_ASSIGN_MASK; conf |= BYT_PULL_ASSIGN_UP; |