ARM: mach-shmobile: sh7372 Enable SDIO IRQs

This patch enables the interrupt generation for SDIO IRQs
of the sdhi controllers of the SoC. To make sure interrupts
are handled announce the MMC_CAP_SDIO_IRQ capability
on AP4EVB. Tested with a b43-based SDIO wireless card.

Signed-off-by: Arnd Hannemann <arnd@arndnet.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/arm/mach-shmobile/board-ap4evb.c b/arch/arm/mach-shmobile/board-ap4evb.c
index cd79d7c..f888d9d 100644
--- a/arch/arm/mach-shmobile/board-ap4evb.c
+++ b/arch/arm/mach-shmobile/board-ap4evb.c
@@ -308,6 +308,7 @@
 static struct sh_mobile_sdhi_info sdhi0_info = {
 	.dma_slave_tx	= SHDMA_SLAVE_SDHI0_TX,
 	.dma_slave_rx	= SHDMA_SLAVE_SDHI0_RX,
+	.tmio_caps	= MMC_CAP_SDIO_IRQ,
 };
 
 static struct resource sdhi0_resources[] = {
@@ -339,7 +340,7 @@
 	.dma_slave_rx	= SHDMA_SLAVE_SDHI1_RX,
 	.tmio_ocr_mask	= MMC_VDD_165_195,
 	.tmio_flags	= TMIO_MMC_WRPROTECT_DISABLE,
-	.tmio_caps	= MMC_CAP_NEEDS_POLL,
+	.tmio_caps	= MMC_CAP_NEEDS_POLL | MMC_CAP_SDIO_IRQ,
 	.get_cd		= slot_cn7_get_cd,
 };