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-rm9200dk.c b/arch/arm/mach-at91/board-rm9200dk.c
index 022d0ce..782f379 100644
--- a/arch/arm/mach-at91/board-rm9200dk.c
+++ b/arch/arm/mach-at91/board-rm9200dk.c
@@ -72,6 +72,8 @@
 
 static struct at91_usbh_data __initdata dk_usbh_data = {
 	.ports		= 2,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 static struct at91_udc_data __initdata dk_udc_data = {
@@ -80,16 +82,19 @@
 };
 
 static struct at91_cf_data __initdata dk_cf_data = {
+	.irq_pin	= -EINVAL,
 	.det_pin	= AT91_PIN_PB0,
+	.vcc_pin	= -EINVAL,
 	.rst_pin	= AT91_PIN_PC5,
-	// .irq_pin	= ... not connected
-	// .vcc_pin	= ... always powered
 };
 
 #ifndef CONFIG_MTD_AT91_DATAFLASH_CARD
 static struct at91_mmc_data __initdata dk_mmc_data = {
 	.slot_b		= 0,
 	.wire4		= 1,
+	.det_pin	= -EINVAL,
+	.wp_pin		= -EINVAL,
+	.vcc_pin	= -EINVAL,
 };
 #endif
 
@@ -143,7 +148,7 @@
 	.cle		= 21,
 	.det_pin	= AT91_PIN_PB1,
 	.rdy_pin	= AT91_PIN_PC2,
-	// .enable_pin	= ... not there
+	.enable_pin	= -EINVAL,
 	.parts		= dk_nand_partition,
 	.num_parts	= ARRAY_SIZE(dk_nand_partition),
 };