ARM: davinci: enable SRAM ping ping buffering on DA850

Passes the DA850 shared SRAM gen_pool to the McASP driver
and enables the ping-pong buffer DMA support.
Signed-off-by: Matt Porter <mporter@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

arch/arm/mach-davinci/board-da850-evm.c

@@ -769,9 +769,12 @@ static struct snd_platform_data da850_evm_snd_data = {
 	.tdm_slots		= 2,
 	.serial_dir		= da850_iis_serializer_direction,
 	.asp_chan_q		= EVENTQ_0,
+	.ram_chan_q		= EVENTQ_1,
 	.version		= MCASP_VERSION_2,
 	.txnumevt		= 1,
 	.rxnumevt		= 1,
+	.sram_size_playback	= SZ_8K,
+	.sram_size_capture	= SZ_8K,
 };
 
 static const short da850_evm_mcasp_pins[] __initconst = {
@@ -1509,6 +1512,7 @@ static __init void da850_evm_init(void)
 		pr_warning("da850_evm_init: mcasp mux setup failed: %d\n",
 				ret);
 
+	da850_evm_snd_data.sram_pool = sram_get_gen_pool();
 	da8xx_register_mcasp(0, &da850_evm_snd_data);
 
 	ret = davinci_cfg_reg_list(da850_lcdcntl_pins);