summaryrefslogtreecommitdiff
path: root/drivers/pinctrl/intel/pinctrl-intel.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/pinctrl/intel/pinctrl-intel.c')
-rw-r--r--drivers/pinctrl/intel/pinctrl-intel.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c
index 6a274e20d926..9df5a0c0d416 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.c
+++ b/drivers/pinctrl/intel/pinctrl-intel.c
@@ -435,11 +435,20 @@ static void intel_gpio_set_gpio_mode(void __iomem *padcfg0)
{
u32 value;
+ value = readl(padcfg0);
+
/* Put the pad into GPIO mode */
- value = readl(padcfg0) & ~PADCFG0_PMODE_MASK;
+ value &= ~PADCFG0_PMODE_MASK;
+ value |= PADCFG0_PMODE_GPIO;
+
+ /* Disable input and output buffers */
+ value &= ~PADCFG0_GPIORXDIS;
+ value &= ~PADCFG0_GPIOTXDIS;
+
/* Disable SCI/SMI/NMI generation */
value &= ~(PADCFG0_GPIROUTIOXAPIC | PADCFG0_GPIROUTSCI);
value &= ~(PADCFG0_GPIROUTSMI | PADCFG0_GPIROUTNMI);
+
writel(value, padcfg0);
}
@@ -1036,6 +1045,9 @@ static int intel_gpio_irq_type(struct irq_data *d, unsigned int type)
intel_gpio_set_gpio_mode(reg);
+ /* Disable TX buffer and enable RX (this will be input) */
+ __intel_gpio_set_direction(reg, true);
+
value = readl(reg);
value &= ~(PADCFG0_RXEVCFG_MASK | PADCFG0_RXINV);