ARM: shmobile: armadillo800eva: enable DMAEngine on FSI

It is possible to reduce CPU load if FSI playback used DMAEngine.
This patch enabled it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

arch/arm/configs/armadillo800eva_defconfig

@@ -119,6 +119,8 @@ CONFIG_USB_ETH=m
 CONFIG_MMC=y
 CONFIG_MMC_SDHI=y
 CONFIG_MMC_SH_MMCIF=y
+CONFIG_DMADEVICES=y
+CONFIG_SH_DMAE=y
 CONFIG_UIO=y
 CONFIG_UIO_PDRV_GENIRQ=y
 # CONFIG_DNOTIFY is not set

arch/arm/mach-shmobile/board-armadillo800eva.c

@@ -768,12 +768,14 @@ static int fsi_hdmi_set_rate(struct device *dev, int rate, int enable)
 static struct sh_fsi_platform_info fsi_info = {
 	/* FSI-WM8978 */
 	.port_a = {
+		.tx_id = SHDMA_SLAVE_FSIA_TX,
 	},
 	/* FSI-HDMI */
 	.port_b = {
 		.flags		= SH_FSI_FMT_SPDIF |
 				  SH_FSI_ENABLE_STREAM_MODE,
 		.set_rate	= fsi_hdmi_set_rate,
+		.tx_id		= SHDMA_SLAVE_FSIB_TX,
 	}
 };