diff options
Diffstat (limited to 'drivers/pinctrl/pinctrl-amd.c')
| -rw-r--r-- | drivers/pinctrl/pinctrl-amd.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c index b3e772390ab6..aea310a91821 100644 --- a/drivers/pinctrl/pinctrl-amd.c +++ b/drivers/pinctrl/pinctrl-amd.c @@ -383,12 +383,26 @@ static int amd_gpio_irq_set_type(struct irq_data *d, unsigned int type) int ret = 0; u32 pin_reg; unsigned long flags; + bool level_trig; + u32 active_level; struct gpio_chip *gc = irq_data_get_irq_chip_data(d); struct amd_gpio *gpio_dev = gpiochip_get_data(gc); spin_lock_irqsave(&gpio_dev->lock, flags); pin_reg = readl(gpio_dev->base + (d->hwirq)*4); + /* + * When level_trig is set EDGE and active_level is set HIGH in BIOS + * default settings, ignore incoming settings from client and use + * BIOS settings to configure GPIO register. + */ + level_trig = !(pin_reg & (LEVEL_TRIGGER << LEVEL_TRIG_OFF)); + active_level = pin_reg & (ACTIVE_LEVEL_MASK << ACTIVE_LEVEL_OFF); + + if(level_trig && + ((active_level >> ACTIVE_LEVEL_OFF) == ACTIVE_HIGH)) + type = IRQ_TYPE_EDGE_FALLING; + switch (type & IRQ_TYPE_SENSE_MASK) { case IRQ_TYPE_EDGE_RISING: pin_reg &= ~BIT(LEVEL_TRIG_OFF); |