ARM: at91/boards: use -EINVAL for invalid gpio

this will allow to use gpio_is_valid

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
diff --git a/arch/arm/mach-at91/board-cpuat91.c b/arch/arm/mach-at91/board-cpuat91.c
index 7a4c82e..368e142 100644
--- a/arch/arm/mach-at91/board-cpuat91.c
+++ b/arch/arm/mach-at91/board-cpuat91.c
@@ -83,11 +83,14 @@
 }
 
 static struct macb_platform_data __initdata cpuat91_eth_data = {
+	.phy_irq_pin	= -EINVAL,
 	.is_rmii	= 1,
 };
 
 static struct at91_usbh_data __initdata cpuat91_usbh_data = {
 	.ports		= 1,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 static struct at91_udc_data __initdata cpuat91_udc_data = {
@@ -98,6 +101,8 @@
 static struct at91_mmc_data __initdata cpuat91_mmc_data = {
 	.det_pin	= AT91_PIN_PC2,
 	.wire4		= 1,
+	.wp_pin		= -EINVAL,
+	.vcc_pin	= -EINVAL,
 };
 
 static struct physmap_flash_data cpuat91_flash_data = {