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Audio on DVI cape not working

Koen Kooi1
Prodigy 10 points

It doesn't seem to register the codec, although it does show up on the i2c bus. Diff used:

http://dominion.thruhere.net/koen/angstrom/beaglebone/dvi-audio.diff

  • 0
    TI__Genius 15510 points

    Which kernel did you start with?

    Steve K.

  • 0 in reply to Steve Kipisz
    TI__Intellectual 1665 points

    Koen,

    The AUD_DIN & AUD_DOUT on Cape are swapped when compared to the EVM - in your source I do not see the definition for am335x_iis_serializer_direction1. Please refer the attached patch for details. 

    Master branch on gitorious: https://gitorious.org/sitara-board-port

    Patch (change extension to .patch): 

    Fullscreen 5037.0001-board-am335xevm-Add-audio-suport-for-Beaglebone-DVI-.txt Download 
    From 6a5b7fa0806be7af6e92f895ab4430d98a8f7fc2 Mon Sep 17 00:00:00 2001
From: Punya Prakash <pprakash@ti.com>
Date: Fri, 4 May 2012 07:50:04 -0500
Subject: [PATCH]  board-am335xevm: Add audio suport for Beaglebone DVI Cape


Signed-off-by: Punya Prakash <pprakash@ti.com>
---
 arch/arm/mach-omap2/board-am335xevm.c |   43 ++++++++++++++++++++++++++++++++-
 1 files changed, 42 insertions(+), 1 deletions(-)

diff --git a/arch/arm/mach-omap2/board-am335xevm.c b/arch/arm/mach-omap2/board-am335xevm.c
index 874dfd7..65d20b9 100644
--- a/arch/arm/mach-omap2/board-am335xevm.c
+++ b/arch/arm/mach-omap2/board-am335xevm.c
@@ -191,6 +191,13 @@ static u8 am335x_iis_serializer_direction1[] = {
 	INACTIVE_MODE,	INACTIVE_MODE,	INACTIVE_MODE,	INACTIVE_MODE,
 };
 
+static u8 am335x_iis_serializer_direction[] = {
+        INACTIVE_MODE,  INACTIVE_MODE,  RX_MODE,        TX_MODE,
+        INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,
+        INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,
+        INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,
+};
+
 static struct snd_platform_data am335x_evm_snd_data1 = {
 	.tx_dma_offset	= 0x46400000,	/* McASP1 */
 	.rx_dma_offset	= 0x46400000,
@@ -204,6 +211,19 @@ static struct snd_platform_data am335x_evm_snd_data1 = {
 	.rxnumevt	= 1,
 };
 
+static struct snd_platform_data bone_snd_data1 = {
+       .tx_dma_offset  = 0x46000000,   /* McASP0*/
+       .rx_dma_offset  = 0x46000000,
+       .op_mode        = DAVINCI_MCASP_IIS_MODE,
+       .num_serializer = ARRAY_SIZE(am335x_iis_serializer_direction),
+       .tdm_slots      = 2,
+       .serial_dir     = am335x_iis_serializer_direction1,
+       .asp_chan_q     = EVENTQ_2,
+       .version        = MCASP_VERSION_3,
+       .txnumevt       = 1,
+       .rxnumevt       = 1,
+};
+
 static struct omap2_hsmmc_info am335x_mmc[] __initdata = {
 	{
 		.mmc            = 1,
@@ -595,6 +615,14 @@ static struct pinmux_config mcasp1_pin_mux[] = {
 	{NULL, 0},
 };
 
+/* Module pin mux for mcasp0 */
+static struct pinmux_config mcasp0_pin_mux[] = {
+       {"mcasp0_aclkx.mcasp0_aclkx", OMAP_MUX_MODE0 |AM33XX_PIN_INPUT_PULLDOWN},
+       {"mcasp0_fsx.mcasp0_fsx", OMAP_MUX_MODE0 | AM33XX_PIN_INPUT_PULLDOWN},
+       {"mcasp0_ahclkr.mcasp0_axr2", OMAP_MUX_MODE2 | AM33XX_PIN_INPUT_PULLDOWN},
+       {"mcasp0_ahclkx.mcasp0_axr3", OMAP_MUX_MODE2 | AM33XX_PIN_INPUT_PULLDOWN},
+       {NULL, 0},
+};
 
 /* Module pin mux for mmc0 */
 static struct pinmux_config mmc0_pin_mux[] = {
@@ -1466,6 +1494,9 @@ static void i2c1_init(int evm_id, int profile)
 
 
 static struct i2c_board_info am335x_i2c_boardinfo2[] = {
+        {
+                I2C_BOARD_INFO("tlv320aic3x", 0x1b),
+        },
 };
 
 static void i2c2_init(int evm_id, int profile)
@@ -1485,6 +1516,15 @@ static void mcasp1_init(int evm_id, int profile)
 	return;
 }
 
+/* Setup McASP 0 */
+static void mcasp0_init(int evm_id, int profile)
+{
+       /* Configure McASP */
+       setup_pin_mux(mcasp0_pin_mux);
+       am335x_register_mcasp(&bone_snd_data1, 0);
+       return;
+}
+
 static void mmc1_init(int evm_id, int profile)
 {
 	setup_pin_mux(mmc1_pin_mux);
@@ -1841,6 +1881,7 @@ static struct evm_dev_cfg beaglebone_dev_cfg[] = {
 	{usb1_init,	DEV_ON_BASEBOARD, PROFILE_NONE},
 	{mmc0_init,	DEV_ON_BASEBOARD, PROFILE_NONE},
 	{i2c2_init,	DEV_ON_BASEBOARD, PROFILE_NONE},
+	{mcasp0_init, DEV_ON_BASEBOARD, PROFILE_ALL},
 	{NULL, 0, 0},
 };
 
@@ -1934,7 +1975,7 @@ static void setup_beaglebone(void)
 	_configure_device(LOW_COST_EVM, beaglebone_dev_cfg, PROFILE_NONE);
 
 	/* TPS65217 regulator has full constraints */
-	regulator_has_full_constraints();
+//	regulator_has_full_constraints();
 
 	/* Fill up global evmid */
 	am33xx_evmid_fillup(BEAGLE_BONE_A3);
-- 
1.7.0.4

    Regards, Punya