greybus: gb-audio: Activate TX connection Bundle CPort ID

Currently, the audio driver activates & deactivates a predefined
CPort ID but that can vary depending on the manifest data of the
module.  Instead, use the TX connection's Bundle CPort ID which
contains the correct CPort ID.
Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Acked-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

drivers/staging/greybus/audio-pcm.c

@@ -42,8 +42,8 @@ static void gb_pcm_work(struct work_struct *work)
 	if (!atomic_read(&snd_dev->running)) {
 		if (snd_dev->cport_active) {
 			ret = gb_i2s_mgmt_deactivate_cport(
-						snd_dev->mgmt_connection,
-						CONFIG_I2S_REMOTE_DATA_CPORT);
+				snd_dev->mgmt_connection,
+				snd_dev->i2s_tx_connection->bundle_cport_id);
 			if (ret) /* XXX Do what else with failure? */
 				pr_err("deactivate_cport failed: %d\n", ret);
 
@@ -53,7 +53,7 @@ static void gb_pcm_work(struct work_struct *work)
 		return;
 	} else if (!snd_dev->cport_active) {
 		ret = gb_i2s_mgmt_activate_cport(snd_dev->mgmt_connection,
-						 CONFIG_I2S_REMOTE_DATA_CPORT);
+				snd_dev->i2s_tx_connection->bundle_cport_id);
 		if (ret)
 			pr_err("activate_cport failed: %d\n", ret);
 

drivers/staging/greybus/audio.h

@@ -22,7 +22,6 @@
 #define CONFIG_PERIOD_NS			1000000 /* send msg every 1ms */
 
 #define CONFIG_COUNT_MAX			20
-#define CONFIG_I2S_REMOTE_DATA_CPORT		7 /* XXX shouldn't be hardcoded...*/
 
 /* Switch between dummy spdif and jetson rt5645 codec */
 #define USE_RT5645				0