ALSA: firewire-tascam: remove a flag for controller

Currently, 'struct snd_tscm_spec' has a member named as 'is_controller' to
identify MIDI controller. This member was originally added to skip
parse control and status messages in isochronous packets for non-controller
model.

As long as I investigate, FW-1804 (non-controller) also transfers the
control and status message, thus it becomes meaningless.

This commit removes it.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/firewire/tascam/tascam.c

@@ -21,7 +21,6 @@ static struct snd_tscm_spec model_specs[] = {
 		.pcm_playback_analog_channels = 8,
 		.midi_capture_ports = 4,
 		.midi_playback_ports = 4,
-		.is_controller = true,
 	},
 	{
 		.name = "FW-1082",
@@ -31,7 +30,6 @@ static struct snd_tscm_spec model_specs[] = {
 		.pcm_playback_analog_channels = 2,
 		.midi_capture_ports = 2,
 		.midi_playback_ports = 2,
-		.is_controller = true,
 	},
 	{
 		.name = "FW-1804",
@@ -41,7 +39,6 @@ static struct snd_tscm_spec model_specs[] = {
 		.pcm_playback_analog_channels = 2,
 		.midi_capture_ports = 2,
 		.midi_playback_ports = 4,
-		.is_controller = false,
 	},
 };
 

sound/firewire/tascam/tascam.h

@@ -39,7 +39,6 @@ struct snd_tscm_spec {
 	unsigned int pcm_playback_analog_channels;
 	unsigned int midi_capture_ports;
 	unsigned int midi_playback_ports;
-	bool is_controller;
 };
 
 #define TSCM_MIDI_IN_PORT_MAX	4