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>
diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index 32ee3f8..d9bc3fa 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -762,16 +762,19 @@
};
static struct snd_platform_data da850_evm_snd_data = {
- .tx_dma_offset = 0x2000,
- .rx_dma_offset = 0x2000,
- .op_mode = DAVINCI_MCASP_IIS_MODE,
- .num_serializer = ARRAY_SIZE(da850_iis_serializer_direction),
- .tdm_slots = 2,
- .serial_dir = da850_iis_serializer_direction,
- .asp_chan_q = EVENTQ_0,
- .version = MCASP_VERSION_2,
- .txnumevt = 1,
- .rxnumevt = 1,
+ .tx_dma_offset = 0x2000,
+ .rx_dma_offset = 0x2000,
+ .op_mode = DAVINCI_MCASP_IIS_MODE,
+ .num_serializer = ARRAY_SIZE(da850_iis_serializer_direction),
+ .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 @@
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);