{
int status, ret;
bool mirror = false;
+ bool open_drain = false;
struct regmap_config *one_regmap_config = NULL;
int raw_chip_address = (addr & ~0x40) >> 1;
"microchip,irq-active-high");
mirror = device_property_read_bool(dev, "microchip,irq-mirror");
+ open_drain = device_property_read_bool(dev, "drive-open-drain");
}
if ((status & IOCON_SEQOP) || !(status & IOCON_HAEN) || mirror ||
- mcp->irq_active_high) {
+ mcp->irq_active_high || open_drain) {
/* mcp23s17 has IOCON twice, make sure they are in sync */
status &= ~(IOCON_SEQOP | (IOCON_SEQOP << 8));
status |= IOCON_HAEN | (IOCON_HAEN << 8);
if (mirror)
status |= IOCON_MIRROR | (IOCON_MIRROR << 8);
+ if (open_drain)
+ status |= IOCON_ODR | (IOCON_ODR << 8);
+
if (type == MCP_TYPE_S18 || type == MCP_TYPE_018)
status |= IOCON_INTCC | (IOCON_INTCC << 8);