[PATCH 19/47] davinci: dm365 evm: use EDMAQ_3 as the audio DMA queue

Kevin Hilman khilman at deeprootsystems.com
Fri Oct 1 17:29:43 EDT 2010

From: Sekhar Nori <nsekhar at ti.com>

By default the audio driver uses EDMAQ_0 as the DMA queue,
but on DM365 this queue is specially designed for video
transfers with a large fifo size. Having both audio and
video transfers on the same queue leads to noise on the
audio side.

This patch changes the audio queue number for DM365 to

Signed-off-by: Sekhar Nori <nsekhar at ti.com>
Signed-off-by: Kevin Hilman <khilman at deeprootsystems.com>
 arch/arm/mach-davinci/board-dm365-evm.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/arch/arm/mach-davinci/board-dm365-evm.c b/arch/arm/mach-davinci/board-dm365-evm.c
index 84acef1..bdea2da 100644
--- a/arch/arm/mach-davinci/board-dm365-evm.c
+++ b/arch/arm/mach-davinci/board-dm365-evm.c
@@ -175,7 +175,9 @@ static struct at24_platform_data eeprom_info = {
 	.context	= (void *)0x7f00,
-static struct snd_platform_data dm365_evm_snd_data;
+static struct snd_platform_data dm365_evm_snd_data = {
+	.asp_chan_q = EVENTQ_3,
 static struct i2c_board_info i2c_info[] = {

More information about the linux-arm-kernel mailing list