diff options
| -rw-r--r-- | drivers/pinctrl/intel/pinctrl-cherryview.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c index f9a476765736..2984b460bbc5 100644 --- a/drivers/pinctrl/intel/pinctrl-cherryview.c +++ b/drivers/pinctrl/intel/pinctrl-cherryview.c @@ -1169,9 +1169,12 @@ static int chv_gpio_get(struct gpio_chip *chip, unsigned offset) { struct chv_pinctrl *pctrl = gpiochip_to_pinctrl(chip); int pin = chv_gpio_offset_to_pin(pctrl, offset); + unsigned long flags; u32 ctrl0, cfg; + spin_lock_irqsave(&pctrl->lock, flags); ctrl0 = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0)); + spin_unlock_irqrestore(&pctrl->lock, flags); cfg = ctrl0 & CHV_PADCTRL0_GPIOCFG_MASK; cfg >>= CHV_PADCTRL0_GPIOCFG_SHIFT; @@ -1209,8 +1212,11 @@ static int chv_gpio_get_direction(struct gpio_chip *chip, unsigned offset) struct chv_pinctrl *pctrl = gpiochip_to_pinctrl(chip); unsigned pin = chv_gpio_offset_to_pin(pctrl, offset); u32 ctrl0, direction; + unsigned long flags; + spin_lock_irqsave(&pctrl->lock, flags); ctrl0 = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0)); + spin_unlock_irqrestore(&pctrl->lock, flags); direction = ctrl0 & CHV_PADCTRL0_GPIOCFG_MASK; direction >>= CHV_PADCTRL0_GPIOCFG_SHIFT; @@ -1313,6 +1319,7 @@ static unsigned chv_gpio_irq_startup(struct irq_data *d) unsigned long flags; u32 intsel, value; + spin_lock_irqsave(&pctrl->lock, flags); intsel = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0)); intsel &= CHV_PADCTRL0_INTSEL_MASK; intsel >>= CHV_PADCTRL0_INTSEL_SHIFT; @@ -1323,7 +1330,6 @@ static unsigned chv_gpio_irq_startup(struct irq_data *d) else handler = handle_edge_irq; - spin_lock_irqsave(&pctrl->lock, flags); if (!pctrl->intr_lines[intsel]) { irq_set_handler_locked(d, handler); pctrl->intr_lines[intsel] = offset; |