net: mdio-gpio: Add support for active low gpio pins

Some systems using mdio-gpio may use active-low gpio pins
(eg with inverters or FETs connected to all or some of the
gpio pins).

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/mdio-gpio.h b/include/linux/mdio-gpio.h
index 7c9fe3c2be73..57e57fe6055c 100644
--- a/include/linux/mdio-gpio.h
+++ b/include/linux/mdio-gpio.h
@@ -18,6 +18,9 @@ struct mdio_gpio_platform_data {
         unsigned int mdc;
         unsigned int mdio;
 
+        bool mdc_active_low;
+        bool mdio_active_low;
+
         unsigned int phy_mask;
         int irqs[PHY_MAX_ADDR];
         /* reset callback */